Records reviewed Oct. 4, 2026 · 90 records changed this week

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Horizontal dry cooler • Product

Güntner Flat VARIO Dry Cooler

A low-profile configurable dry cooler for projects constrained by equipment height.

dry coolerlow profilehorizontal coilheat rejection

Direct answer

What this record says

Güntner Flat VARIO Dry Cooler is a cooling product from Güntner. Its lifecycle status is available. Last reviewed Oct. 4, 2026 against 1 source.

1 sourceReviewed Oct. 4, 2026
Manufacturer
Güntner
Rated capacity
Not recorded
Total flow
Not recorded
Status
Available

Product brief

What the record shows

The Flat VARIO places a configurable finned coil in a horizontal, low-profile arrangement intended to remain below building-height constraints. Güntner publishes 10–1,300 kW for its listed fluid GFHV type and 13–3,262 kW for the listed oil GOHV type, with selectable coils, fans, circuiting, housings, and optional controls. The oil range is not evidence that every configuration or water-loop selection reaches 3,262 kW.

A data-center buyer should obtain the exact water or glycol selection, peak-ambient duty, pressure drop, total fan power, snow and wind design, sound, fan-failure derating, access above and below the horizontal coil, drainage and freeze protection, recirculation clearances, controls, and structural loads. Horizontal placement can satisfy a height limit while increasing roof area and changing how snow, debris, rain, cleaning water, and maintenance personnel interact with the coil and fans. The design team should confirm safe access without blocking airflow and should model nearby parapets, screens, and units rather than assume catalog clearances suit the roof.

Tender comparisons need the selected fluid model, because the published oil and fluid ranges represent different duties. Require guaranteed outlet temperature and fan power at normal, peak, fouled, low-load, and failure conditions, plus controls behavior, motor replacement space, drainability, corrosion protection, and lifting reactions.

Capacity figures are supplier-reported unless the source says otherwise. Compare products at the same temperatures, flow, pressure, and redundancy state.

SpecificationSupplier-stated
Controls
Optional aicore controlsSupplier wording, not yet normalized
Arrangement
HorizontalSupplier wording, not yet normalized
Published GFHV range
10–1,300 kWSupplier wording, not yet normalized
Published GOHV range
13–3,262 kWSupplier wording, not yet normalized
Selected water-loop duty
Not publicly disclosedSupplier wording, not yet normalized
Manufacturer
Güntner

Connected records

Compatible architecture

Technology

Dry cooling

Fans blow outside air across a coil to dump the heat. No water is consumed.

Established · A plant-wide system, sized to the site's total heat load

Connected records

Equipment category

Equipment category

Dry coolers

Outdoor coils with fans that shed heat to the air and use no water.

4 tracked suppliers

Evidence ledger

Sources and evidence

The links below show where the factual claims came from. Supplier specifications remain supplier-reported unless the record names independent operating evidence.

  1. 01
Record information
Record ID
DCC / PROD / GUNTNER-FLAT
Record reviewed
Oct. 4, 2026
Record first published
Oct. 4, 2026
External sources
1
Search visibility
Offered to search engines

This field was researched and is not published by the party who would know:

  • Rated capacity or duty

Required fields this record has not addressed yet, most important first:

  • Rating conditions
  • Public deployment evidence
  • Stated application
  • Fluid or materials
  • Serviceability

Decide between

Comparable products

The same equipment category from other manufacturers, most-evidenced first.

View all products
Product

BAC TrilliumSeries Dry Cooler

A factory-built dry cooler published at up to 10,000 MBH for water-constrained critical-cooling plants.

Baltimore Aircoil Company · Available
Product

EVAPCO eco-Air APEX Dry Cooler

A factory-assembled, CTI-certified dry cooler published at 9,060 to 11,490 MBH nominal heat rejection.

EVAPCO · Available
Product

Alfa Laval Cooling Pod

A containerised dry cooler in 500 kW and 1,000 kW modules, offered with plate heat exchangers to separate the loops.

Alfa Laval · Available

Add two or more, then open the comparison to see every stated claim, its duty point, and its source side by side.

Provenance

Record timeline

Each event that changed this record, with the report that explains it.

  1. Recorded

    Research expansion published: 90 records

    Product
    • Field updateddescription: Smardt designs air-cooled, water-cooled, evaporatively cooled, and modular chillers around oil-free centrifugal compressors. Its Core and Ultra water-cooled ranges cover plant sizes from 45 to 3,600 refrigeration tons, while multi-compressor layouts provide staged capacity and some compressor-level redundancy. For a data-center procurement, the useful distinction is specialization: Smardt can engineer the chiller package, but pumps, towers or dry coolers, controls, and rack-side equipment still require a complete plant design. Buyers should obtain project-specific selections at the required chilled- and condenser-water temperatures, annual load calculations, refrigerant and service plans, restart behavior, and witnessed performance tests rather than extrapolating from range limits. → Smardt designs air-cooled, water-cooled, evaporatively cooled, and modular chillers around oil-free centrifugal compressors. Its Core and Ultra water-cooled ranges cover plant sizes from 45 to 3,600 refrigeration tons, while multi-compressor layouts provide staged capacity and some compressor-level redundancy. For a data-center procurement, the useful distinction is specialization: Smardt can engineer the chiller package, but pumps, towers or dry coolers, controls, and rack-side equipment still require a complete plant design. Buyers should obtain project-specific selections at the required chilled- and condenser-water temperatures, annual load calculations, refrigerant and service plans, restart behavior, and witnessed performance tests rather than extrapolating from range limits. Qualification should separate compressor redundancy from whole-chiller and whole-plant redundancy: continued operation after one compressor stops does not establish capacity after loss of a vessel, power feed, controller, pump, or condenser-water path. The public range pages also do not disclose delivered pricing, lead time, fleet-wide failure rates, or one standard efficiency valid across all configurations. Tender documents should therefore identify the exact model, rating standard, ambient and water design points, fouling assumptions, part-load sequence, allowable downtime, spare-parts commitment, and party responsible for integrated plant controls.
    • Field updateddescription: Baltimore Aircoil Company, commonly called BAC, makes outdoor heat-rejection equipment rather than server-side liquid loops. Its data-center range includes the TrilliumSeries dry cooler and the HXV hybrid cooler, allowing a plant designer to trade footprint, fan energy, and peak water use against required leaving-fluid temperature. BAC reports operating since 1938 and describes itself as employee-owned, with product and service coverage across multiple regions. Buyers should compare units at site-specific summer design conditions, glycol concentration, altitude, sound limits, redundancy, and water-quality assumptions, and should require fan power, pressure drop, plume behavior, controls integration, and maintenance access in the submittal. → Baltimore Aircoil Company, commonly called BAC, makes outdoor heat-rejection equipment rather than server-side liquid loops. Its data-center range includes the TrilliumSeries dry cooler and the HXV hybrid cooler, allowing a plant designer to trade footprint, fan energy, and peak water use against required leaving-fluid temperature. BAC reports operating since 1938 and describes itself as employee-owned, with product and service coverage across multiple regions. Buyers should compare units at site-specific summer design conditions, glycol concentration, altitude, sound limits, redundancy, and water-quality assumptions, and should require fan power, pressure drop, plume behavior, controls integration, and maintenance access in the submittal. The two linked products represent materially different utility and operating obligations. A dry cooler avoids routine evaporation but loses temperature margin as outdoor dry-bulb temperature rises; the HXV can use evaporation to extend performance but introduces water treatment, discharge, drift, hygiene, and winterization work. Public product pages do not provide a universal annual energy or water result. A procurement team should require hourly climate modeling, explicit mode-change logic, design-day derating after a fan or pump failure, basin and coil freeze protection, sound at day and night setpoints, and confirmation that service clearances fit the proposed roof or yard layout.
    • Field updateddescription: EVAPCO supplies facility-side heat rejection for data centers, including the eco-Air family of dry coolers and larger field-erected configurations. The EAW-HD APEX and EAW-DD Double Stack products target high heat rejection per unit of plan area while operating without routine evaporation. EVAPCO publishes CTI-certified ratings for selected dry-cooler lines and offers controls and factory assembly, but those facts do not establish site capacity without a thermal selection. Procurement should test performance at actual entering and leaving fluid temperatures, peak dry-bulb conditions, glycol concentration, elevation, recirculation, sound restrictions, fan-failure cases, and the required plant redundancy. → EVAPCO supplies facility-side heat rejection for data centers, including the eco-Air family of dry coolers and larger field-erected configurations. The EAW-HD APEX and EAW-DD Double Stack products target high heat rejection per unit of plan area while operating without routine evaporation. EVAPCO publishes CTI-certified ratings for selected dry-cooler lines and offers controls and factory assembly, but those facts do not establish site capacity without a thermal selection. Procurement should test performance at actual entering and leaving fluid temperatures, peak dry-bulb conditions, glycol concentration, elevation, recirculation, sound restrictions, fan-failure cases, and the required plant redundancy. CTI certification and a thermal performance guarantee address defined rating conditions; they do not answer whether a roof arrangement will recirculate hot discharge air or whether the plant can meet outlet temperature after a cell, power feed, or control panel is unavailable. The public sources also do not disclose installed cost, delivery schedule, annual fan energy, or maintenance staffing for a particular site. Buyers should request the selection printout, test code and tolerance, fan-by-fan electrical schedule, minimum stable speed, controls points, coil-cleaning method, corrosion treatment, freeze strategy, lifting plan, structural reactions, and a layout review using the actual surrounding buildings and prevailing winds.
    • Field updateddescription: Güntner manufactures finned-coil heat exchangers and dry coolers for refrigeration, process, HVAC, and information-technology loads. Its Flat and V-shape VARIO families can be configured with different coils, fans, controls, materials, and sound treatments; the V-shape line can also add hydroBLU adiabatic pre-cooling. Published data-center cases show the equipment rejecting heat from immersion systems, which is evidence of a facility-side role rather than server compatibility. Buyers should require a project selection that accounts for hottest-hour ambient conditions, glycol, fouling, elevation, fan staging, acoustic limits, hot-air recirculation, freeze protection, water use when adiabatic assistance is fitted, and capacity after a fan or control failure. → Güntner manufactures finned-coil heat exchangers and dry coolers for refrigeration, process, HVAC, and information-technology loads. Its Flat and V-shape VARIO families can be configured with different coils, fans, controls, materials, and sound treatments; the V-shape line can also add hydroBLU adiabatic pre-cooling. Published data-center cases show the equipment rejecting heat from immersion systems, which is evidence of a facility-side role rather than server compatibility. Buyers should require a project selection that accounts for hottest-hour ambient conditions, glycol, fouling, elevation, fan staging, acoustic limits, hot-air recirculation, freeze protection, water use when adiabatic assistance is fitted, and capacity after a fan or control failure. Configuration breadth means a family name alone is not a comparable bid. Coil geometry, circuiting, metallurgy, fan quantity, motor type, controls, coatings, and adiabatic accessories can change capacity, pressure drop, sound, water demand, footprint, and service procedure. Procurement should lock those choices to a scheduled duty and require performance at normal, peak, minimum-load, and failure conditions. It should also identify who supplies pumps, expansion and air separation, intermediate heat exchangers, water treatment for any assisted mode, structural steel, and supervisory controls, because the dry cooler does not by itself define or warrant the complete heat-rejection system.
    • Field updateddescription: Vahterus designs gasket-free Plate & Shell Heat Exchangers around welded circular plate packs inside pressure shells. The architecture can isolate fluids in cooling, condensing, evaporating, and heat-recovery duties and is custom selected rather than sold on one universal megawatt rating. The company publishes nine plate sizes, including the PSHE 7 and PSHE 9 represented in this batch, but nozzle and surface-area ranges are not substitutes for a thermal calculation. Data-center buyers should specify both fluids, flow rates, supply and return temperatures, allowable approach temperature and pressure drop, fouling allowance, design pressure, metallurgy, cleanability, leak detection, isolation, bypass, and local pressure-vessel certification. → Vahterus designs gasket-free Plate & Shell Heat Exchangers around welded circular plate packs inside pressure shells. The architecture can isolate fluids in cooling, condensing, evaporating, and heat-recovery duties and is custom selected rather than sold on one universal megawatt rating. The company publishes nine plate sizes, including the PSHE 7 and PSHE 9 represented in this batch, but nozzle and surface-area ranges are not substitutes for a thermal calculation. Data-center buyers should specify both fluids, flow rates, supply and return temperatures, allowable approach temperature and pressure drop, fouling allowance, design pressure, metallurgy, cleanability, leak detection, isolation, bypass, and local pressure-vessel certification. A fully welded exchanger removes plate-pack gaskets from the design, but that construction also affects inspection, mechanical cleaning, repair, and capacity expansion. Buyers should ask how the selected unit will be cleaned for the stated fluids, what fouling or plugging evidence triggers intervention, whether an openable or fully welded execution is proposed, and how an internal leak between circuits would be detected. The public size table does not disclose data-center references, prices, lead times, thermal guarantees, or standard spare strategy. Final qualification needs certified calculations, fabrication drawings, code documentation, weld inspection requirements, nozzle loads, vent and drain provisions, support design, and an isolation arrangement that permits service without losing the required cooling duty.
    • Field updateddescription: SWEP manufactures brazed plate heat exchangers used as loop separators in data-center free cooling, coolant distribution units, mechanical cooling, and heat-reuse systems. Its B439 and B649 products have direct company-documented use in Infosys data centers, where they separate cooling-tower water from a cleaner internal loop. Brazed construction offers a compact sealed assembly, but it changes inspection, cleaning, repair, and end-of-life choices compared with gasketed plate-and-frame equipment. Buyers should require a thermal selection for fluid chemistry, duty temperatures, flow, approach, pressure drop, fouling, material compatibility, design pressure, parallel-unit balancing, isolation, cross-contamination detection, and replacement access. → SWEP manufactures brazed plate heat exchangers used as loop separators in data-center free cooling, coolant distribution units, mechanical cooling, and heat-reuse systems. Its B439 and B649 products have direct company-documented use in Infosys data centers, where they separate cooling-tower water from a cleaner internal loop. Brazed construction offers a compact sealed assembly, but it changes inspection, cleaning, repair, and end-of-life choices compared with gasketed plate-and-frame equipment. Buyers should require a thermal selection for fluid chemistry, duty temperatures, flow, approach, pressure drop, fouling, material compatibility, design pressure, parallel-unit balancing, isolation, cross-contamination detection, and replacement access. The named Infosys reference supports use of the products, not a universal thermal rating or maintenance interval. The public sources do not state the exact plate count, brazing alloy, pressure loss, approach temperature, water analysis, cleaning history, or measured energy savings for every installed unit. Procurement should identify the precise article number and manufacturing configuration, establish strainers and water-quality limits, specify clean and fouled guarantees, and decide whether several isolated exchangers are needed for maintainability and fault tolerance. It should also document chemical-cleaning compatibility, flushing connections, lifting and replacement space, leak-monitoring method, and the party responsible for hydraulic balancing when units operate in parallel.
    • Field updateddescription: MITA Group covers plant-side thermal equipment through specialist businesses including MITA Cooling Technologies in Italy and TORRAVAL Cooling in Spain. MITA Cooling Technologies makes factory-assembled open- and closed-circuit evaporative towers, while TORRAVAL designs larger and customized towers such as the CTFP units documented at a Barcelona data-processing center. This portfolio makes the group relevant where a data-center designer must choose between direct-contact tower water and a closed process loop, but it does not remove the need for project-specific plant engineering. Buyers should compare thermal duty at the site's wet-bulb conditions, annual and peak water use, fan and pump energy, drift, plume, water treatment and discharge, hygiene controls, sound, redundancy, materials, winter operation, access, controls integration, factory or field assembly, and local service. → MITA Group covers plant-side thermal equipment through specialist businesses including MITA Cooling Technologies in Italy and TORRAVAL Cooling in Spain. MITA Cooling Technologies makes factory-assembled open- and closed-circuit evaporative towers, while TORRAVAL designs larger and customized towers such as the CTFP units documented at a Barcelona data-processing center. This portfolio makes the group relevant where a data-center designer must choose between direct-contact tower water and a closed process loop, but it does not remove the need for project-specific plant engineering. Buyers should compare thermal duty at the site's wet-bulb conditions, annual and peak water use, fan and pump energy, drift, plume, water treatment and discharge, hygiene controls, sound, redundancy, materials, winter operation, access, controls integration, factory or field assembly, and local service. Contracting boundaries need particular attention because the linked products carry MITA and TORRAVAL brands within the same group. A tender should identify the legal seller, manufacturing site, thermal guarantor, controls supplier, commissioning party, and organization responsible for warranty and long-term service in the project country. The Barcelona case confirms a sixteen-tower project but withholds the operator, thermal schedule, measured utilities, and acceptance results. Buyers should therefore ask for a comparable reference at the proposed scale and climate, the certified selection and test tolerance, expected cycles of concentration and blowdown, drift and plume controls, basin and coil cleaning procedures, legionella management responsibilities, and capacity after the largest credible equipment or utility failure.
    • Field updateddescription: Mitsubishi Heavy Industries Thermal Systems sells centrifugal chillers from 150 to 6,000 refrigeration tons across its published portfolio. The ETI-Z and GART-ZE/ZEI ranges use low-global-warming-potential HFO refrigerants and cover different plant scales, with inverter options available. The company identifies data centers as an application and names Shirakawa Data Center, but its public application page does not disclose installed model, quantity, capacity, efficiency, or commissioning date, so this batch does not create a deployment record from that reference. Buyers should require project-specific full- and part-load selections, chilled- and condenser-water limits, refrigerant availability, harmonic and starting-current data, restart sequence, redundancy, tube-cleaning access, controls integration, service coverage, and witnessed factory testing. → Mitsubishi Heavy Industries Thermal Systems sells centrifugal chillers from 150 to 6,000 refrigeration tons across its published portfolio. The ETI-Z and GART-ZE/ZEI ranges use low-global-warming-potential HFO refrigerants and cover different plant scales, with inverter options available. The company identifies data centers as an application and names Shirakawa Data Center, but its public application page does not disclose installed model, quantity, capacity, efficiency, or commissioning date, so this batch does not create a deployment record from that reference. Buyers should require project-specific full- and part-load selections, chilled- and condenser-water limits, refrigerant availability, harmonic and starting-current data, restart sequence, redundancy, tube-cleaning access, controls integration, service coverage, and witnessed factory testing. A published refrigeration-ton range cannot answer how many machines a resilient plant needs or how they behave as the information-technology load ramps. Qualification should include the selected compressor and drive arrangement, minimum stable load, surge-control method, condenser-water reset envelope, efficiency at each planned staging point, and derating after a compressor, chiller, pump, or cooling-tower cell fails. The public pages do not provide commercial terms, lead times, fleet reliability, data-center acceptance results, or regional parts commitments. Those unknowns should be resolved through the bid schedule, factory-test protocol, reference calls, refrigerant supply plan, preventive-maintenance scope, and guaranteed emergency response time.
    • Field updateddescription: Mitsubishi Electric Hydronics & IT Cooling Systems, or MEHITS, designs applied cooling for comfort, industrial processes, and information-technology facilities. Its portfolio joins Climaveneta air- and water-cooled chillers with RC critical-cooling equipment, including free-cooling chillers designed specifically for hyperscale and colocation data centers. The two products in this batch represent oil-free centrifugal and inverter-screw air-cooled approaches, not interchangeable selections. Buyers should compare annual energy at their water temperatures and climate, compressor and fan redundancy, free-cooling switchover, glycol strategy, fast restart, refrigerant regulation, heat left in room air, sound, controls, maintainability, factory acceptance testing, and service capability in the project country. → Mitsubishi Electric Hydronics & IT Cooling Systems, or MEHITS, designs applied cooling for comfort, industrial processes, and information-technology facilities. Its portfolio joins Climaveneta air- and water-cooled chillers with RC critical-cooling equipment, including free-cooling chillers designed specifically for hyperscale and colocation data centers. The two products in this batch represent oil-free centrifugal and inverter-screw air-cooled approaches, not interchangeable selections. Buyers should compare annual energy at their water temperatures and climate, compressor and fan redundancy, free-cooling switchover, glycol strategy, fast restart, refrigerant regulation, heat left in room air, sound, controls, maintainability, factory acceptance testing, and service capability in the project country. The product relationship establishes available chiller families, not responsibility for the rack-side loop, room air handlers, pumps, electrical infrastructure, or outdoor layout around each unit. Procurement should define those interfaces and require an annual simulation using the site's weather file, phased load profile, supply and return temperatures, glycol concentration, and required reserve. It should also test transition among mechanical, hybrid, and free-cooling modes, capacity during a circuit or fan failure, restart after power loss, low-load stability, control points and data ownership, coil-cleaning access, winter protection, and the availability of trained technicians and refrigerant in the operating region.
    • Field updateddescription: Smardt's Core Series is a water-cooled centrifugal chiller family for applications including data centers. The company publishes a 45–1,600 TR range, equivalent to 160–5,625 kW, and configurations with as many as eight oil-free compressors; it also lists AHRI, ETL, and CE certifications, heat-recovery options, and remote monitoring. Those are family-level statements, not a project selection or proof of efficiency at a specific duty. A buyer should request the selected model's certified full- and part-load performance, compressor staging after a failure, refrigerant charge, tube materials, pressure drop, minimum stable load, starting current, harmonic treatment, sound, dimensions, controls, restart timing, and service plan. → Smardt's Core Series is a water-cooled centrifugal chiller family for applications including data centers. The company publishes a 45–1,600 TR range, equivalent to 160–5,625 kW, and configurations with as many as eight oil-free compressors; it also lists AHRI, ETL, and CE certifications, heat-recovery options, and remote monitoring. Those are family-level statements, not a project selection or proof of efficiency at a specific duty. A buyer should request the selected model's certified full- and part-load performance, compressor staging after a failure, refrigerant charge, tube materials, pressure drop, minimum stable load, starting current, harmonic treatment, sound, dimensions, controls, restart timing, and service plan. The submittal should distinguish loss of one compressor from loss of the common evaporator, condenser, controller, or electrical connection, because multiple compressors do not make every component redundant. It should state which listed refrigerant and certification apply to the quoted machine rather than to the family generally. Annual-energy evaluation needs the actual load profile and condenser-water reset, not only a full-load point. Public material does not disclose model-specific price, lead time, field failure rate, guaranteed restart time, or spare inventory, so those items require contractual answers and reference checks.
    • Field updateddescription: The Ultra Series is Smardt's large-capacity water-cooled centrifugal chiller range for mission-critical and high-tonnage plants. Smardt publishes 300–3,600 TR, or 1,055–12,660 kW, with multiple oil-free compressors and R515B, R513A, or R134a options. The range limit does not establish the capacity, efficiency, redundancy, or footprint of any one selected machine, and supplier superlatives on efficiency require confirmation against certified schedules. Procurement should compare annual plant energy, condenser-water reset limits, compressor staging, failure derating, refrigerant transition risk, maintenance clearances, tube service, controls and cyber access, factory tests, shipping splits, and local technician coverage. → The Ultra Series is Smardt's large-capacity water-cooled centrifugal chiller range for mission-critical and high-tonnage plants. Smardt publishes 300–3,600 TR, or 1,055–12,660 kW, with multiple oil-free compressors and R515B, R513A, or R134a options. The range limit does not establish the capacity, efficiency, redundancy, or footprint of any one selected machine, and supplier superlatives on efficiency require confirmation against certified schedules. Procurement should compare annual plant energy, condenser-water reset limits, compressor staging, failure derating, refrigerant transition risk, maintenance clearances, tube service, controls and cyber access, factory tests, shipping splits, and local technician coverage. At this scale, one machine can represent a large common failure domain even when it contains several compressors. The plant designer should compare fewer large chillers with more smaller modules using the same reserve criterion, maintenance scenario, minimum-load profile, electrical topology, and pump-and-tower consequences. The quoted schedule should identify capacity and efficiency tolerance, entering and leaving water conditions, fouling factors, allowable condenser-water range, refrigerant charge, starting and harmonic requirements, and operation after a compressor or power-feed loss. Delivered cost, schedule, long-term reliability, and site-specific acceptance results are not public.
    • Field updateddescription: The TrilliumSeries Dry Cooler rejects heat from a closed water or glycol loop to outdoor air without routine evaporation. BAC publishes capacity up to 10,000 MBH and describes independent fans, variable-frequency drives, and coils, plus building-management-system communications and low-sound options. The headline capacity is not portable across climates or fluid temperatures: available duty falls as outdoor dry-bulb approaches the required leaving-fluid temperature. A buyer should require a rated selection at peak ambient, glycol and elevation, total fan power, pressure drop, acoustic data, controls sequence, fan- and coil-failure derating, freeze protection, recirculation study, cleaning access, and structural loads. → The TrilliumSeries Dry Cooler rejects heat from a closed water or glycol loop to outdoor air without routine evaporation. BAC publishes capacity up to 10,000 MBH and describes independent fans, variable-frequency drives, and coils, plus building-management-system communications and low-sound options. The headline capacity is not portable across climates or fluid temperatures: available duty falls as outdoor dry-bulb approaches the required leaving-fluid temperature. A buyer should require a rated selection at peak ambient, glycol and elevation, total fan power, pressure drop, acoustic data, controls sequence, fan- and coil-failure derating, freeze protection, recirculation study, cleaning access, and structural loads. The phrase “up to” describes a family maximum, not a guaranteed duty for a chosen footprint or noise configuration. A low-sound fan selection, night limit, fouled coil, blocked airflow, or hot discharge recirculation can reduce usable output. The independent fan, drive, and coil design should be translated into a quantified capacity after each credible failure rather than treated as automatic plant redundancy. Procurement should also identify minimum ambient operation, drain and glycol strategy, motor and drive replacement access, coil-fin protection, hail and corrosion requirements, control-network behavior after communications loss, and the measurement method used for site acceptance.
    • Field updateddescription: The HXV combines a dry coil with evaporative heat rejection and can switch among three operating modes to trade water use against temperature and fan energy. BAC publishes thermal capacity up to 396 tons and flow up to 1,260 US gallons per minute, and identifies data centers as a target application. Because it can consume water and operates as a hybrid closed-circuit cooler, it is related here to cooling-tower equipment rather than represented as a fully dry product. Buyers should model annual and peak-day water, treatment and discharge, plume, drift, legionella controls, dry-mode capacity, fan and pump power, freeze protection, sound, redundancy, maintenance access, and leaving-fluid temperature at the hottest site condition. → The HXV combines a dry coil with evaporative heat rejection and can switch among three operating modes to trade water use against temperature and fan energy. BAC publishes thermal capacity up to 396 tons and flow up to 1,260 US gallons per minute, and identifies data centers as a target application. Because it can consume water and operates as a hybrid closed-circuit cooler, it is related here to cooling-tower equipment rather than represented as a fully dry product. Buyers should model annual and peak-day water, treatment and discharge, plume, drift, legionella controls, dry-mode capacity, fan and pump power, freeze protection, sound, redundancy, maintenance access, and leaving-fluid temperature at the hottest site condition. Selection should show the weather and load thresholds for each operating mode, because annual savings depend on how often dry operation can meet the required outlet temperature. The proposal should separately state process-loop pressure drop, spray-pump power, fan power, makeup water, evaporation, drift, blowdown, and chemical treatment. It should also quantify duty during water restrictions or a spray-system outage and identify whether that condition requires compute curtailment or mechanical backup. Public pages do not disclose one standard water-use figure, annual efficiency, price, or failure rate; site modeling and guaranteed schedules are necessary.
    • Field updateddescription: The eco-Air APEX is a factory-assembled dry fluid cooler developed for high-capacity data-center and industrial heat rejection. EVAPCO publishes a CTI-certified nominal range of 9,060–11,490 MBH and states that the largest listed condition equals 3.37 MW at 115°F inlet, 105°F outlet, and 95°F entering dry bulb. Those temperatures are essential context; a different approach to ambient, glycol mix, or flow changes capacity and fan demand. A project selection should state total fan power, fluid pressure drop, sound, recirculation clearances, controls and communications, fan-failure derating, freeze strategy, coil materials and cleanability, shipping and lifting limits, and performance at the site's actual summer design point. → The eco-Air APEX is a factory-assembled dry fluid cooler developed for high-capacity data-center and industrial heat rejection. EVAPCO publishes a CTI-certified nominal range of 9,060–11,490 MBH and states that the largest listed condition equals 3.37 MW at 115°F inlet, 105°F outlet, and 95°F entering dry bulb. Those temperatures are essential context; a different approach to ambient, glycol mix, or flow changes capacity and fan demand. A project selection should state total fan power, fluid pressure drop, sound, recirculation clearances, controls and communications, fan-failure derating, freeze strategy, coil materials and cleanability, shipping and lifting limits, and performance at the site's actual summer design point. The nominal condition includes only a 10°F fluid drop and a 10°F approach to outdoor air, so it must not be applied to a colder loop without reselection. CTI certification supports comparison at the certified point but does not establish the surrounding roof's airflow or annual energy use. Buyers should request performance at every required ambient and load condition, including night sound limits, minimum fan speed, one-fan and one-control-section outages, fouled coils, and design glycol. Structural reactions, service zones, crane access, discharge recirculation, and the controls response to sensor or network failure also need explicit review.
    • Field updateddescription: The EAW-DD Double Stack uses two levels of V-coil heat-transfer surface to increase dry heat rejection per plan area. EVAPCO publishes 2,750–8,440 MBH nominal capacity, 304L stainless-steel tubing, aluminum fins, belt-driven NEMA fan motors, factory wiring, and a thermal performance guarantee. The range describes a product family, not a selected duty or resilient plant configuration. Buyers should request a site-rated schedule including inlet and outlet fluid temperatures, flow, glycol, pressure drop, fan motor and variable-speed controls, sound, airflow recirculation, seismic and wind criteria, access to the upper coil and fans, failure derating, freeze protection, shipping sections, and structural loading. → The EAW-DD Double Stack uses two levels of V-coil heat-transfer surface to increase dry heat rejection per plan area. EVAPCO publishes 2,750–8,440 MBH nominal capacity, 304L stainless-steel tubing, aluminum fins, belt-driven NEMA fan motors, factory wiring, and a thermal performance guarantee. The range describes a product family, not a selected duty or resilient plant configuration. Buyers should request a site-rated schedule including inlet and outlet fluid temperatures, flow, glycol, pressure drop, fan motor and variable-speed controls, sound, airflow recirculation, seismic and wind criteria, access to the upper coil and fans, failure derating, freeze protection, shipping sections, and structural loading. A double-stack arrangement saves plan area but puts coils and moving equipment at multiple elevations, making safe inspection, cleaning, belt service, isolation, and replacement access procurement issues rather than later operational details. The thermal guarantee should identify its standard, tolerance, fluid, and test condition, and the design team should confirm whether field verification is practical. Evaluation should include total fan power and sound across staging points, capacity with one fan or drive unavailable, minimum winter flow, drainability, corrosion exposure, hail protection, and the effect of nearby parapets or adjacent units. Installed cost and annual energy are not publicly disclosed.
    • Field updateddescription: The V-shape VARIO is a configurable finned-coil dry cooler for server, process, and HVAC heat rejection. Güntner publishes two fluid configurations spanning 75–2,040 kW and 47–740 kW, up to two rows of twelve fans, optional aicore controls, and optional hydroBLU adiabatic pads. The adiabatic option means some configurations use water above a configured threshold even though the base equipment is a dry cooler. Buyers should distinguish the selected coil and fan arrangement, then verify dry-only capacity at peak ambient, assisted-mode water quantity and quality, glycol and pressure drop, sound, fan redundancy, controls, recirculation, corrosion protection, freeze operation, coil cleaning, and maintenance access. → The V-shape VARIO is a configurable finned-coil dry cooler for server, process, and HVAC heat rejection. Güntner publishes two fluid configurations spanning 75–2,040 kW and 47–740 kW, up to two rows of twelve fans, optional aicore controls, and optional hydroBLU adiabatic pads. The adiabatic option means some configurations use water above a configured threshold even though the base equipment is a dry cooler. Buyers should distinguish the selected coil and fan arrangement, then verify dry-only capacity at peak ambient, assisted-mode water quantity and quality, glycol and pressure drop, sound, fan redundancy, controls, recirculation, corrosion protection, freeze operation, coil cleaning, and maintenance access. The two published ranges correspond to different product types and cannot be combined into one blanket capacity claim. The quoted configuration should identify coil material, tube circuiting, fan and motor model, controls package, casing, coating, design pressure, fluid, and all accessories. If hydroBLU is included, procurement should require dry-only and assisted ratings, hourly water modeling, pad life, treatment requirements, drainage, winter sequence, and output during a water outage. The layout review should cover intake clearance, discharge recirculation, fan replacement, coil washing, snow and wind loads, and capacity remaining after the largest fan, circuit, control, or power-section failure.
    • Field updateddescription: The Flat VARIO places a configurable finned coil in a horizontal, low-profile arrangement intended to remain below building-height constraints. Güntner publishes 10–1,300 kW for its listed fluid GFHV type and 13–3,262 kW for the listed oil GOHV type, with selectable coils, fans, circuiting, housings, and optional controls. The oil range is not evidence that every configuration or water-loop selection reaches 3,262 kW. A data-center buyer should obtain the exact water or glycol selection, peak-ambient duty, pressure drop, total fan power, snow and wind design, sound, fan-failure derating, access above and below the horizontal coil, drainage and freeze protection, recirculation clearances, controls, and structural loads. → The Flat VARIO places a configurable finned coil in a horizontal, low-profile arrangement intended to remain below building-height constraints. Güntner publishes 10–1,300 kW for its listed fluid GFHV type and 13–3,262 kW for the listed oil GOHV type, with selectable coils, fans, circuiting, housings, and optional controls. The oil range is not evidence that every configuration or water-loop selection reaches 3,262 kW. A data-center buyer should obtain the exact water or glycol selection, peak-ambient duty, pressure drop, total fan power, snow and wind design, sound, fan-failure derating, access above and below the horizontal coil, drainage and freeze protection, recirculation clearances, controls, and structural loads. Horizontal placement can satisfy a height limit while increasing roof area and changing how snow, debris, rain, cleaning water, and maintenance personnel interact with the coil and fans. The design team should confirm safe access without blocking airflow and should model nearby parapets, screens, and units rather than assume catalog clearances suit the roof. Tender comparisons need the selected fluid model, because the published oil and fluid ranges represent different duties. Require guaranteed outlet temperature and fan power at normal, peak, fouled, low-load, and failure conditions, plus controls behavior, motor replacement space, drainability, corrosion protection, and lifting reactions.
    • Field updateddescription: PSHE 7 is one plate size within Vahterus's custom-built fully welded Plate & Shell Heat Exchanger family. The company publishes 8–550 m² of heat-transfer area, DN150 plate-side nozzles, and DN25–500 shell-side nozzles; the welded circular plate pack sits inside a pressure shell with no external plate gaskets. Those dimensions do not establish thermal duty, approach temperature, pressure loss, or suitability for data-center water. Procurement should provide both fluid compositions and design cases, temperatures, flow, allowable pressure drop, fouling, pressure and temperature limits, materials, nozzle loads, cleanability, isolation and bypass, leak and cross-contamination detection, certification, inspection access, and replacement strategy. → PSHE 7 is one plate size within Vahterus's custom-built fully welded Plate & Shell Heat Exchanger family. The company publishes 8–550 m² of heat-transfer area, DN150 plate-side nozzles, and DN25–500 shell-side nozzles; the welded circular plate pack sits inside a pressure shell with no external plate gaskets. Those dimensions do not establish thermal duty, approach temperature, pressure loss, or suitability for data-center water. Procurement should provide both fluid compositions and design cases, temperatures, flow, allowable pressure drop, fouling, pressure and temperature limits, materials, nozzle loads, cleanability, isolation and bypass, leak and cross-contamination detection, certification, inspection access, and replacement strategy. Because each unit is custom made, “PSHE 7” identifies the plate size rather than a complete repeatable bill of materials. The buyer should require the final plate count, shell geometry, construction materials, weld and pressure-vessel records, dry and operating weights, support reactions, and certified thermal calculation. Qualification should explain how each circuit is vented, drained, flushed, sampled, and chemically or mechanically cleaned, and whether the proposed execution can be opened. It should also define clean and fouled guarantees, internal-leak detection, allowable transients, thermal expansion, spare or bypass capacity, and the procedure and lead time for repair or replacement.
    • Field updateddescription: PSHE 9 is a larger standard plate size used as the basis for custom Vahterus Plate & Shell Heat Exchangers. Vahterus publishes 15–1,000 m² of heat-transfer area, a DN200 plate-side nozzle, and shell-side nozzles from DN25 to DN700. The selected shell, plate count, metallurgy, and circuit are engineered for the process, so the area range alone cannot be converted into a data-center megawatt rating. Buyers should require a guaranteed duty and approach temperature for clean and fouled cases, pressure-drop limits on both sides, materials compatibility, pressure-vessel code, nozzle and support loads, thermal expansion, vents and drains, cleaning method, isolation and bypass, internal-leak detection, spares, and inspection provisions. → PSHE 9 is a larger standard plate size used as the basis for custom Vahterus Plate & Shell Heat Exchangers. Vahterus publishes 15–1,000 m² of heat-transfer area, a DN200 plate-side nozzle, and shell-side nozzles from DN25 to DN700. The selected shell, plate count, metallurgy, and circuit are engineered for the process, so the area range alone cannot be converted into a data-center megawatt rating. Buyers should require a guaranteed duty and approach temperature for clean and fouled cases, pressure-drop limits on both sides, materials compatibility, pressure-vessel code, nozzle and support loads, thermal expansion, vents and drains, cleaning method, isolation and bypass, internal-leak detection, spares, and inspection provisions. The larger published surface and nozzle envelope may support a high duty, but it can also create a consequential single failure domain if the plant relies on one exchanger. Procurement should compare one large unit with several isolated units using the required reserve, minimum flow, pump energy, footprint, maintenance outage, and capital cost. The final submittal needs plate count, shell arrangement, metallurgy, weld inspection, pressure test, code stamp, weights, center of gravity, supports, lifting points, and nozzle forces. Public sources do not state a standard thermal capacity, price, delivery period, or data-center operating record for PSHE 9.
    • Field updateddescription: SWEP identifies the B439 as a single-phase brazed plate heat exchanger suited to data-center free cooling, where it separates an external brine or tower circuit from a cleaner internal water loop. In the Infosys case, B439 units used 4-inch ports before later projects moved to the larger B649. SWEP's public application page does not provide one universal capacity because duty depends on plate count, flow, temperatures, fluid, and pressure loss. Buyers should obtain the exact article and plate count, certified selection, materials and brazing alloy, design pressure, approach temperature, pressure drop, fouling allowance, water-quality limits, parallel-unit balancing, isolation, strainers, flushing and chemical-cleaning procedure, leak detection, replacement clearance, and lead time. → SWEP identifies the B439 as a single-phase brazed plate heat exchanger suited to data-center free cooling, where it separates an external brine or tower circuit from a cleaner internal water loop. In the Infosys case, B439 units used 4-inch ports before later projects moved to the larger B649. SWEP's public application page does not provide one universal capacity because duty depends on plate count, flow, temperatures, fluid, and pressure loss. Buyers should obtain the exact article and plate count, certified selection, materials and brazing alloy, design pressure, approach temperature, pressure drop, fouling allowance, water-quality limits, parallel-unit balancing, isolation, strainers, flushing and chemical-cleaning procedure, leak detection, replacement clearance, and lead time. A case-study port size identifies an installed configuration, not the port, plate count, or flow appropriate for a new project. Brazed construction is compact and has no service gaskets, but individual plates cannot simply be added or replaced on site like a gasketed frame. The design should therefore establish the complete cleaning and replacement strategy before award. Require duty at normal, peak, minimum-flow, fouled, and failure cases; verify fluid velocity and erosion limits; and specify drains, vents, temperature and pressure instrumentation, sampling, isolation, lifting, and parallel-unit flow balance. Rated capacity, installed cost, and maintenance history remain undisclosed.
    • Field updateddescription: The B649 is a large single-phase brazed plate heat exchanger that SWEP positions for close temperature approaches and high operating pressure. SWEP lists it for data-center free cooling and coolant distribution units and documents multiple B649 units with 6-inch ports and 350 m³/h flow each at Infosys's Hyderabad campus. That case flow is not a universal maximum or thermal rating. Procurement should specify the exact article, plate count, duty and off-design cases, fluid and chemistry, approach, pressure drop, design pressure, brazing alloy and plate material, fouling allowance, strainers, parallel-flow distribution, isolation, cleaning limits, leak and cross-contamination detection, replacement access, and whether modular redundancy is preferable to one large exchanger. → The B649 is a large single-phase brazed plate heat exchanger that SWEP positions for close temperature approaches and high operating pressure. SWEP lists it for data-center free cooling and coolant distribution units and documents multiple B649 units with 6-inch ports and 350 m³/h flow each at Infosys's Hyderabad campus. That case flow is not a universal maximum or thermal rating. Procurement should specify the exact article, plate count, duty and off-design cases, fluid and chemistry, approach, pressure drop, design pressure, brazing alloy and plate material, fouling allowance, strainers, parallel-flow distribution, isolation, cleaning limits, leak and cross-contamination detection, replacement access, and whether modular redundancy is preferable to one large exchanger. The Hyderabad reference demonstrates operation in a named data center but does not disclose unit count, temperatures, approach, pressure loss, plate count, water analysis, or measured savings. Those missing conditions prevent direct reuse of the reported flow as a design basis. A new selection should include clean and fouled guarantees, minimum and maximum flow, transient limits, allowable pressure differential, venting and draining, instrumentation, sampling, flushing, and chemical-cleaning compatibility. Because a brazed unit is not field-expandable or conventionally regasketed, buyers should price installed isolation, lifting and replacement space, spare strategy, and lead time alongside first cost and footprint.
    • Field updateddescription: The CTFP is a TORRAVAL Cooling open-circuit tower with its mechanical equipment and fan positioned at the base in a forced-draft arrangement. MITA Group's Barcelona data-center case identifies sixteen CTFP 2436 units with laminar fill, selected in part to manage rooftop space and sound; it does not publish a current family capacity table or the water temperatures behind that selection. Open-circuit operation exposes circulating condenser water directly to air, providing wet-bulb-based heat rejection while making water chemistry, drift, hygiene, and plume active operating responsibilities. Buyers should request the current model schedule, guaranteed thermal duty and fan power at design wet bulb, flow and pressure, sound spectrum, materials, drift rate, water treatment and blowdown, basin heating and freeze plan, redundancy, fan access, structural and seismic loads, plume analysis, controls, and service coverage. → The CTFP is a TORRAVAL Cooling open-circuit tower with its mechanical equipment and fan positioned at the base in a forced-draft arrangement. MITA Group's Barcelona data-center case identifies sixteen CTFP 2436 units with laminar fill, selected in part to manage rooftop space and sound; it does not publish a current family capacity table or the water temperatures behind that selection. Open-circuit operation exposes circulating condenser water directly to air, providing wet-bulb-based heat rejection while making water chemistry, drift, hygiene, and plume active operating responsibilities. Buyers should request the current model schedule, guaranteed thermal duty and fan power at design wet bulb, flow and pressure, sound spectrum, materials, drift rate, water treatment and blowdown, basin heating and freeze plan, redundancy, fan access, structural and seismic loads, plume analysis, controls, and service coverage. The case-study source is sufficient to establish a deployed model, but not a complete current catalog range or performance map. Its stated 15 kW figure is not used here as thermal capacity because the same case describes a multi-megawatt facility and does not clearly define that number's boundary. Qualification should resolve that ambiguity directly with the supplier and use a certified selection instead. It should also address forced-draft recirculation risk, two-row interaction, intake and discharge clearance, fan and motor replacement, rooftop vibration, maintenance walkway loads, drift deposition, visible plume, chemical storage, blowdown permits, and operation after one tower cell or common utility is unavailable.
    • Field updateddescription: The MCC is a closed-circuit evaporative tower: process water or water-glycol remains inside a coil while a separate basin-water circuit sprays the coil and rejects heat through evaporation. MITA publishes an indicative 80 kW to 1.7 MW per-machine range at a 5°C thermal gradient on the current product page, while its 2025 range brochure lists configurations extending to approximately 3.8 MW; a selected model and rating basis are therefore necessary before comparison. The closed circuit protects process-fluid chemistry but does not eliminate tower-water treatment, drift, hygiene, freezing, fan, pump, or coil-maintenance duties. Buyers should verify duty at design wet bulb, approach, process flow and pressure drop, coil material and design pressure, spray-water quality and consumption, fan and pump power, plume and sound, drift eliminators, free-cooling controls, freeze protection, redundancy, cleanability, inspection access, shipping sections, and local certification. → The MCC is a closed-circuit evaporative tower: process water or water-glycol remains inside a coil while a separate basin-water circuit sprays the coil and rejects heat through evaporation. MITA publishes an indicative 80 kW to 1.7 MW per-machine range at a 5°C thermal gradient on the current product page, while its 2025 range brochure lists configurations extending to approximately 3.8 MW; a selected model and rating basis are therefore necessary before comparison. The closed circuit protects process-fluid chemistry but does not eliminate tower-water treatment, drift, hygiene, freezing, fan, pump, or coil-maintenance duties. Buyers should verify duty at design wet bulb, approach, process flow and pressure drop, coil material and design pressure, spray-water quality and consumption, fan and pump power, plume and sound, drift eliminators, free-cooling controls, freeze protection, redundancy, cleanability, inspection access, shipping sections, and local certification. The difference between the current page's 1.7 MW endpoint and the broader 2025 brochure range is a qualification issue, not a basis for selecting the higher value automatically. The supplier should identify the exact model, catalog revision, rating condition, number of cells, and whether accessories change capacity. Procurement should request separate process-fluid and spray-water schedules, annual and peak makeup, evaporation, drift and blowdown, coil inspection and cleaning procedures, basin access, water-treatment limits, winter dry or free-cooling sequence, and output with a spray pump, fan, or cell unavailable. Public material does not disclose project price, annual utilities, lead time, or fleet reliability.
    • Field updateddescription: ETI-Z is a variable-speed centrifugal chiller family from Mitsubishi Heavy Industries Thermal Systems. The company publishes 150–700 RT, a built-in inverter panel, and HFO-1233zd(E) refrigerant with stated GWP 1 and zero ozone-depletion potential. MHI identifies centrifugal chillers for continuous chilled-water supply in data centers, but does not publish one data-center design point for this range on the product page. A buyer should obtain AHRI or locally certified performance at actual chilled- and condenser-water temperatures, full and integrated part-load energy, surge and minimum-load limits, starting and harmonic data, refrigerant availability, tube materials and cleaning, controls, restart timing, vibration and sound, failure modes, factory testing, and regional service. → ETI-Z is a variable-speed centrifugal chiller family from Mitsubishi Heavy Industries Thermal Systems. The company publishes 150–700 RT, a built-in inverter panel, and HFO-1233zd(E) refrigerant with stated GWP 1 and zero ozone-depletion potential. MHI identifies centrifugal chillers for continuous chilled-water supply in data centers, but does not publish one data-center design point for this range on the product page. A buyer should obtain AHRI or locally certified performance at actual chilled- and condenser-water temperatures, full and integrated part-load energy, surge and minimum-load limits, starting and harmonic data, refrigerant availability, tube materials and cleaning, controls, restart timing, vibration and sound, failure modes, factory testing, and regional service. Refrigerant GWP and capacity range do not establish lifecycle emissions or operating cost; leakage, electricity source, load profile, tower operation, and maintenance all matter. The proposal should identify the exact model and refrigerant charge, compressor and drive topology, motor voltage, harmonic mitigation, minimum condenser-water temperature, turndown, oil-system requirements if any, heat-exchanger fouling factors, relief and detection provisions, and response to loss of flow or power. Data-center qualification also needs guaranteed fast-restart behavior, capacity after an internal fault, controls integration and cybersecurity, tube-cleaning clearances, local parts stocking, service response, and a witnessed test at representative conditions.
    • Field updateddescription: GART-ZE and GART-ZEI are Mitsubishi Heavy Industries Thermal Systems centrifugal chiller families for larger plants. MHI publishes 300–5,000 RT, HFO-1234ze(E), constant-speed and inverter drive choices, and applicability to low-temperature, heat-recovery, and heat-pump duties. The supplier describes high rated and part-load performance but the public page does not provide the standardized values needed to compare a selected data-center machine. Procurement should require certified schedules at all expected loads and condenser-water temperatures, the exact drive and compressor arrangement, minimum stable load, surge protection, refrigerant quantity and service path, electrical starting and harmonics, tube and water-side design, heat-recovery conditions, controls, redundancy and failure derating, sound, factory testing, shipping splits, and local service. → GART-ZE and GART-ZEI are Mitsubishi Heavy Industries Thermal Systems centrifugal chiller families for larger plants. MHI publishes 300–5,000 RT, HFO-1234ze(E), constant-speed and inverter drive choices, and applicability to low-temperature, heat-recovery, and heat-pump duties. The supplier describes high rated and part-load performance but the public page does not provide the standardized values needed to compare a selected data-center machine. Procurement should require certified schedules at all expected loads and condenser-water temperatures, the exact drive and compressor arrangement, minimum stable load, surge protection, refrigerant quantity and service path, electrical starting and harmonics, tube and water-side design, heat-recovery conditions, controls, redundancy and failure derating, sound, factory testing, shipping splits, and local service. The 300–5,000 RT range spans machines with materially different plant, electrical, transport, and service consequences. Buyers should not assume the constant-speed and inverter variants share part-load performance, starting demand, harmonic profile, or minimum-load behavior. A bid should identify the selected drive, compressor count, motor voltage, refrigerant charge, vessel arrangement, tube metallurgy, cleaning space, fouling basis, pressure drops, condenser-water envelope, and relief and leak-detection requirements. If heat recovery is proposed, require simultaneous cooling and heating performance at the actual temperatures and a fallback heat-rejection path. Published material leaves model price, delivery, reliability, and data-center operating results unknown.
    • Field updateddescription: The TR2-FC-G04-Z is an outdoor chilled-water unit designed for hyperscale and colocation data centers. Mitsubishi Electric publishes 840–1,800 kW, oil-free centrifugal compressors, R1234ze refrigerant, 910 mm EC fans, a flooded shell-and-tube evaporator, and total free-cooling, hybrid, and mechanical modes; an NG configuration avoids glycol in the user circuit. The manufacturer also states support for chilled water up to 26°C and a 20 K temperature difference, but a selected unit must be checked at the actual climate and load. Buyers should model compressor-off hours, fan energy, glycol or no-glycol freeze strategy, capacity at peak ambient, circuit and fan redundancy, fast restart, dual-power options, sound, water pressure drop, controls, refrigerant service, coil cleaning, footprint, and failure derating. → The TR2-FC-G04-Z is an outdoor chilled-water unit designed for hyperscale and colocation data centers. Mitsubishi Electric publishes 840–1,800 kW, oil-free centrifugal compressors, R1234ze refrigerant, 910 mm EC fans, a flooded shell-and-tube evaporator, and total free-cooling, hybrid, and mechanical modes; an NG configuration avoids glycol in the user circuit. The manufacturer also states support for chilled water up to 26°C and a 20 K temperature difference, but a selected unit must be checked at the actual climate and load. Buyers should model compressor-off hours, fan energy, glycol or no-glycol freeze strategy, capacity at peak ambient, circuit and fan redundancy, fast restart, dual-power options, sound, water pressure drop, controls, refrigerant service, coil cleaning, footprint, and failure derating. Warm-water and high-temperature-difference capability can reduce flow or compressor hours only if the downstream air handlers, coolant distribution units, controls, and information-technology equipment accept those conditions. The annual model should therefore use the complete loop, site weather, phased compute load, and selected NG or glycol configuration. Procurement should require transition behavior among all three modes, outlet-temperature stability during fan and compressor staging, restart after short and extended outages, output after loss of a circuit or power source, low-load operation, acoustic limits, control-network loss response, coil fouling allowance, maintenance clearances, and factory acceptance criteria.
    • Field updateddescription: MEHITS identifies the i-FX-G01-DC-Z as a data-center-specific member of the Climaveneta air-cooled chiller range. Its official data-center article says the DC versions use elevated water setpoints up to 75°F, or 24°C, to reduce compressor load when the server and room systems can accept warmer water. The article does not disclose this exact variant's capacity range, refrigerant, compressor count, free-cooling coil, efficiency, dimensions, sound, or redundancy, so those fields remain unfilled rather than borrowed from a related i-FX model. A buyer should obtain the current technical data sheet and certified selection, then verify warm-water capacity, peak-ambient derating, compressor and fan redundancy, minimum load, refrigerant, restart, harmonics, sound, controls, coil cleaning, freeze protection, water pressure drop, service access, and regional availability. → MEHITS identifies the i-FX-G01-DC-Z as a data-center-specific member of the Climaveneta air-cooled chiller range. Its official data-center article says the DC versions use elevated water setpoints up to 75°F, or 24°C, to reduce compressor load when the server and room systems can accept warmer water. The article does not disclose this exact variant's capacity range, refrigerant, compressor count, free-cooling coil, efficiency, dimensions, sound, or redundancy, so those fields remain unfilled rather than borrowed from a related i-FX model. A buyer should obtain the current technical data sheet and certified selection, then verify warm-water capacity, peak-ambient derating, compressor and fan redundancy, minimum load, refrigerant, restart, harmonics, sound, controls, coil cleaning, freeze protection, water pressure drop, service access, and regional availability. The model designation should be confirmed in the current sales region before it appears in a final equipment schedule, because the cited page supplies less detail than the other product sources in this batch. Qualification should require manufacturer-issued dimensions, weights, circuit diagram, electrical schedule, rating standard, performance map, refrigerant data, sound spectrum, operating envelope, options, and certification. The 24°C setpoint is a capability statement, not evidence that a proposed server loop can use it or that compressors remain off. Whole-system modeling and written interface limits are needed, along with price, lead time, warranty, parts, and technician availability.
    • Field updateddescription: Status: operating, based on Smardt's report of early commissioning with stable operation and efficiency. The unnamed New York-region operator required two replacement AD120 water-cooled chillers, each configured with three TT350 oil-free magnetic-bearing compressors, while preserving a fixed commissioning schedule. Smardt says one unit was damaged in third-party transit and that it reorganized production and sourcing to deliver a replacement in three months; this is useful evidence of project response, but the account remains supplier-authored and the operator is not named. Public material does not disclose cooling capacity, water temperatures, refrigerant, measured efficiency, redundancy at design load, acceptance criteria, rack density, compute platform, final commissioning date, or long-term operating results, so buyers should treat it as a delivery reference and request an operator contact and acceptance data. → Status: operating, based on Smardt's report of early commissioning with stable operation and efficiency. The unnamed New York-region operator required two replacement AD120 water-cooled chillers, each configured with three TT350 oil-free magnetic-bearing compressors, while preserving a fixed commissioning schedule. Smardt says one unit was damaged in third-party transit and that it reorganized production and sourcing to deliver a replacement in three months; this is useful evidence of project response, but the account remains supplier-authored and the operator is not named. Public material does not disclose cooling capacity, water temperatures, refrigerant, measured efficiency, redundancy at design load, acceptance criteria, rack density, compute platform, final commissioning date, or long-term operating results, so buyers should treat it as a delivery reference and request an operator contact and acceptance data. The record is strongest as evidence of factory and supply-chain response after transport damage, not as a thermal-performance benchmark. “Stable efficiency” is not accompanied by a rating method, measured kilowatts per ton, load point, condenser-water condition, observation period, or independent witness. Due diligence should ask whether both chillers reached final acceptance, whether the damaged machine was rebuilt or replaced, what commissioning defects remained, and whether the three-month statement ran from authorization to factory shipment or site operation. A reference call should also cover packaging and transport controls, spare compressors and electronics, startup staffing, alarm and controls integration, restart tests, maintenance access, and service response. For design comparison, request the exact AD120 selection, certified duty, electrical demand, refrigerant, dimensions, operating hours, availability, and capacity after one compressor, one chiller, or a supporting plant component is unavailable.
    • Field updateddescription: Status: operating, based on BAC's statement that the installed HXV system delivered water temperatures meeting the customer's specification and supported the information-technology load. The company says the 160 MW operating-power high-performance-computing customer previously used open cooling towers with water-cooled chillers and selected HXV hybrid coolers to combine dry and evaporative operation without chillers. BAC's case study reports comparative estimates and savings, but the operator and location are withheld and no independent meter data, equipment count, water temperatures, weather file, baseline boundary, commissioning report, or observation period is published. The record therefore establishes a real supplier-documented deployment and architecture, not independently verified PUE, WUE, energy, water, or cost performance; procurement teams should request the underlying model, measured post-commissioning data, and a customer reference. → Status: operating, based on BAC's statement that the installed HXV system delivered water temperatures meeting the customer's specification and supported the information-technology load. The company says the 160 MW operating-power high-performance-computing customer previously used open cooling towers with water-cooled chillers and selected HXV hybrid coolers to combine dry and evaporative operation without chillers. BAC's case study reports comparative estimates and savings, but the operator and location are withheld and no independent meter data, equipment count, water temperatures, weather file, baseline boundary, commissioning report, or observation period is published. The record therefore establishes a real supplier-documented deployment and architecture, not independently verified PUE, WUE, energy, water, or cost performance; procurement teams should request the underlying model, measured post-commissioning data, and a customer reference. The stated 160 MW is customer operating power, not a published tower thermal duty, and should not be used to infer equipment quantity or unit size. The case also does not say whether the HXV system serves the entire campus, one phase, or a defined subset of load. Qualification should request the exact baseline and proposed system boundaries, hourly weather and load assumptions, dry, evaporative, and combined mode hours, makeup and blowdown, fan and pump energy, leaving-water temperatures, reserve criterion, and hot-day capacity. Operators should ask how the plant responds to water restrictions, poor water quality, plume conditions, freezing weather, a fan or spray-pump failure, and loss of common controls. Acceptance records and at least one year of utility and maintenance data would be more decision-useful than supplier percentage claims alone.
    • Field updateddescription: Status: operating. Güntner says a data center run by an unnamed large Chinese e-commerce company has used two-phase immersion cooling in Zhangjiakou since 2017, with four V-shape VARIO dry coolers and hydroBLU adiabatic assistance providing 1,060 kW aggregate heat-rejection capacity. The architecture condenses vapor inside the immersion chambers and transfers that heat to the outdoor coolers; water is used for adiabatic assistance only when ambient conditions require it, according to the supplier. Güntner also reports large energy and cost savings versus conventional systems, but does not name the operator, publish the baseline, equipment schedule, water use, weather normalization, raw metering, rack density, compute platform, availability, or independent verification. Buyers can use the case to validate architecture and scale, but should request site contacts and measured annual fan, pump, and water data. → Status: operating. Güntner says a data center run by an unnamed large Chinese e-commerce company has used two-phase immersion cooling in Zhangjiakou since 2017, with four V-shape VARIO dry coolers and hydroBLU adiabatic assistance providing 1,060 kW aggregate heat-rejection capacity. The architecture condenses vapor inside the immersion chambers and transfers that heat to the outdoor coolers; water is used for adiabatic assistance only when ambient conditions require it, according to the supplier. Güntner also reports large energy and cost savings versus conventional systems, but does not name the operator, publish the baseline, equipment schedule, water use, weather normalization, raw metering, rack density, compute platform, availability, or independent verification. Buyers can use the case to validate architecture and scale, but should request site contacts and measured annual fan, pump, and water data. The evidence does not establish whether 1,060 kW is installed nameplate, design-day duty, or measured rejected heat, nor does it disclose the fluid temperatures, glycol, approach to ambient, fan power, or reserve margin. Four units may provide staging, but their N, N+1, or other resilience role is not stated. A comparable-project review should ask for the selected model and fan configuration, hydroBLU activation threshold, annual and peak water use, pad maintenance and treatment, dry-only output, winter sequence, alarm history, coil cleaning, and capacity after one cooler or common pump loop is lost. Immersion-system due diligence also needs the intermediate exchanger and pump boundary, because outdoor cooler performance alone does not validate chamber condensation, dielectric-fluid compatibility, server service procedures, or end-to-end cooling availability.
    • Field updateddescription: Status: operating. SWEP reports that Infosys and project design lead Schneider Electric developed several data-center cooling projects between 2016 and 2020 using B439 and B649 brazed plate heat exchangers to separate primary cooling sources from the secondary loop. At the Hyderabad campus, multiple B649 units have 6-inch ports and a reported flow of 350 m³/h each; SWEP says the units were running without problems when the case was published. The named operator, design partner, product models, hydraulic role, period, and per-unit flow make this a useful deployment reference. Evidence remains supplier-authored, however, and public material does not disclose unit count, thermal megawatts, temperatures, pressure drop, rack density, compute platform, PUE, measured savings, maintenance history, or independent acceptance data. → Status: operating. SWEP reports that Infosys and project design lead Schneider Electric developed several data-center cooling projects between 2016 and 2020 using B439 and B649 brazed plate heat exchangers to separate primary cooling sources from the secondary loop. At the Hyderabad campus, multiple B649 units have 6-inch ports and a reported flow of 350 m³/h each; SWEP says the units were running without problems when the case was published. The named operator, design partner, product models, hydraulic role, period, and per-unit flow make this a useful deployment reference. Evidence remains supplier-authored, however, and public material does not disclose unit count, thermal megawatts, temperatures, pressure drop, rack density, compute platform, PUE, measured savings, maintenance history, or independent acceptance data. Flow is not thermal capacity without inlet and outlet temperatures and fluid properties, so the reported 350 m³/h must not be converted into megawatts from assumptions. The phrase “without any problems” also lacks an operating period, availability definition, alarm log, leakage history, fouling trend, or maintenance record. Buyer reference questions should cover exact article numbers and plate counts, water chemistry on both sides, approach temperature, pressure loss, pump energy, strainer and filtration practice, cleaning frequency, isolation and bypass, spare units, and the method for detecting internal cross-contamination. The design team should ask how parallel exchangers are balanced, what capacity remains during cleaning or replacement, whether performance was field verified, and which measured savings Infosys attributed specifically to the exchangers rather than to the wider cooling design.
    • Field updateddescription: Status: operating, based on MITA Group's 2023 case study describing the completed supply and the towers' role in maintaining equipment performance. TORRAVAL Cooling, a MITA Group company, supplied sixteen CTFP 2436 forced-draft open-circuit towers with laminar fill for a large Barcelona data-processing center operated for an international information-technology company. The source states a 20 MW required load expandable to 40 MW plus 5 MW of emergency supply; it does not explain whether those values are information-technology, electrical, or thermal capacity, so this record preserves the source wording rather than converting them into cooling duty. The rooftop towers were arranged in two facing rows to use limited space and support acoustic control, with maintenance walkways and ladders included. Public evidence does not name the operator or installer, disclose tower water temperatures and flow, measured energy or water use, redundancy, commissioning tests, rack density, compute platform, availability, or an operator-authored account, so buyers should request the approved schedule, acceptance data, annual operating records, and a reference contact. → Status: operating, based on MITA Group's 2023 case study describing the completed supply and the towers' role in maintaining equipment performance. TORRAVAL Cooling, a MITA Group company, supplied sixteen CTFP 2436 forced-draft open-circuit towers with laminar fill for a large Barcelona data-processing center operated for an international information-technology company. The source states a 20 MW required load expandable to 40 MW plus 5 MW of emergency supply; it does not explain whether those values are information-technology, electrical, or thermal capacity, so this record preserves the source wording rather than converting them into cooling duty. The rooftop towers were arranged in two facing rows to use limited space and support acoustic control, with maintenance walkways and ladders included. Public evidence does not name the operator or installer, disclose tower water temperatures and flow, measured energy or water use, redundancy, commissioning tests, rack density, compute platform, availability, or an operator-authored account, so buyers should request the approved schedule, acceptance data, annual operating records, and a reference contact. The case's separate 15 kW statement for each tower is not treated as heat-rejection capacity here because its meaning is unclear against the cited multi-megawatt requirement; it may describe installed motor power, but the source does not say. That ambiguity should be resolved from the equipment schedule rather than inferred. Qualification should request design wet bulb, hot- and cold-water temperatures, cell flow, fan power, drift, evaporation and blowdown, cycles of concentration, sound measurements, plume review, chemical treatment, hygiene plan, rooftop vibration and structural reactions, and capacity with one cell or common pump unavailable. It should also confirm whether the expansion allowance was physically installed, reserved in the layout, or only a future design intention.
    • Field updateddescription: CPC, or Colder Products Company, is a component supplier rather than a complete rack-cooling integrator. Its Everis range covers latched and blind-mate quick disconnects from server-level connections toward larger rack-loop interfaces, with OCP-oriented UQD models intended to support multi-sourcing. Buyers should select the exact flow size, termination, seal, pressure and coolant combination; a compatible envelope does not establish equal pressure drop, spillage or lifecycle performance across suppliers. CPC publishes useful wetted-material and connection data, but a project submittal should still define cleanliness, mating-cycle testing, allowable side load, replacement policy and responsibility for the assembled hose. The company was founded in Minnesota in 1978, is headquartered in Arden Hills and operates within Dover. → CPC, or Colder Products Company, is a component supplier rather than a complete rack-cooling integrator. Its Everis range covers latched and blind-mate quick disconnects from server-level connections toward larger rack-loop interfaces, with OCP-oriented UQD models intended to support multi-sourcing. Buyers should select the exact flow size, termination, seal, pressure and coolant combination; a compatible envelope does not establish equal pressure drop, spillage or lifecycle performance across suppliers. CPC publishes useful wetted-material and connection data, but a project submittal should still define cleanliness, mating-cycle testing, allowable side load, replacement policy and responsibility for the assembled hose. The company was founded in Minnesota in 1978, is headquartered in Arden Hills and operates within Dover. Procurement should also ask whether CPC or the hose assembler warrants the finished assembly, which inspection records accompany each lot, and whether socket and plug revisions remain backward compatible. Public product pages do not disclose a fleet-wide field-failure rate, a standard preventive-replacement interval, or the complete qualification evidence behind every coolant combination. Those unknowns matter because a nominally interchangeable connector can still differ in insertion force, residual spill, internal volume and pressure loss. A rack mock-up should therefore test access, labeling, connection confirmation and technician removal while adjacent branches remain live.
    • Field updateddescription: Stäubli supplies connection hardware within the liquid loop, not the pumps, cold plates or facility heat rejection around it. Its data-center portfolio includes OCP-oriented UQD and blind-mate UQDB couplings as well as the CGD metal range used by Fujitsu in Fugaku. The published ranges cover several nominal diameters, seal choices and alignment formats, so procurement must identify a complete socket-and-plug combination rather than cite only a family name. Buyers should compare pressure loss at the required flow, drip and air-inclusion limits, allowable misalignment, mating cycles, coolant compatibility and whether a listed approval applies to the exact part number. Founded in 1892, Stäubli remains family owned and is headquartered in Pfäffikon, Switzerland. → Stäubli supplies connection hardware within the liquid loop, not the pumps, cold plates or facility heat rejection around it. Its data-center portfolio includes OCP-oriented UQD and blind-mate UQDB couplings as well as the CGD metal range used by Fujitsu in Fugaku. The published ranges cover several nominal diameters, seal choices and alignment formats, so procurement must identify a complete socket-and-plug combination rather than cite only a family name. Buyers should compare pressure loss at the required flow, drip and air-inclusion limits, allowable misalignment, mating cycles, coolant compatibility and whether a listed approval applies to the exact part number. Founded in 1892, Stäubli remains family owned and is headquartered in Pfäffikon, Switzerland. The Fugaku reference demonstrates scale and hot-swap use, but it does not publish the selected CGD size, coolant chemistry, observed leak rate or replacement history. A new buyer should request test reports for both mating halves, tolerance data for the actual blind-mate guide system, and confirmation that seals, lubricants and surface finishes comply with the server vendor's water-quality rules. The commercial review should identify regional stocking, special tooling, lot traceability and the party responsible when a coupling, hose or manifold interface causes an imbalance. Multi-source claims should be verified through cross-mating tests under pressure rather than dimensional drawings alone.
    • Field updateddescription: Parker Hannifin offers fluid-conveyance components from coolant-distribution units through manifolds and cold plates. The two linked distribution-manifold families are built for industrial liquid, gas, steam and hydraulic service rather than advertised as ready-made rack manifolds. They are included because they show Parker's configurable 316-stainless distribution hardware, but using one in a technology-coolant loop would require project qualification for flow balance, cleanliness, glycol chemistry, branch connections, pressure drop and service clearances. Parker separately markets OCP-oriented quick disconnects, tubing, hoses and valves for data-center liquid cooling. The broad catalog can reduce component handoffs, but it does not create a pre-qualified rack-loop assembly or a single performance warranty. Parker is headquartered in Cleveland and trades on the New York Stock Exchange. → Parker Hannifin offers fluid-conveyance components from coolant-distribution units through manifolds and cold plates. The two linked distribution-manifold families are built for industrial liquid, gas, steam and hydraulic service rather than advertised as ready-made rack manifolds. They are included because they show Parker's configurable 316-stainless distribution hardware, but using one in a technology-coolant loop would require project qualification for flow balance, cleanliness, glycol chemistry, branch connections, pressure drop and service clearances. Parker separately markets OCP-oriented quick disconnects, tubing, hoses and valves for data-center liquid cooling. The broad catalog can reduce component handoffs, but it does not create a pre-qualified rack-loop assembly or a single performance warranty. Parker is headquartered in Cleveland and trades on the New York Stock Exchange. A buyer should require Parker to identify which division owns the submitted assembly and whether the industrial manifold catalog can be adapted without invalidating data-center cleanliness or material requirements. The public sources do not publish rack dimensions, branch Cv values, internal volume, flushing procedures or an OCP qualification for HPAHM or HPAHMC. Engineering review should also resolve how isolation valves, quick disconnects, drains, vents and sensors are combined, and whether full-penetration weld and non-destructive-test records are supplied. Any proposal should name one integrator responsible for branch balancing, hydrostatic testing and warranty coordination across Parker components.
    • Field updateddescription: USystems concentrates on close-coupled air-assisted liquid cooling. Its ColdLogik rear doors replace or attach to a rack rear door, transfer server exhaust heat to water and return near-room-temperature air without requiring processor cold plates. That can preserve standard server service procedures, but door weight, rack fit, fan interaction, condensation margin and facility-water availability remain project constraints. The linked CL20 and CL23 span medium- through very-high-density duties; their headline capacities use stated water conditions and should not be carried into a design without a project-specific coil, airflow and redundancy calculation. USystems publishes named installations at DataBank, Cambridge and other sites. It was established in 2003, operates from Bedford in the United Kingdom and is now a Legrand brand. → USystems concentrates on close-coupled air-assisted liquid cooling. Its ColdLogik rear doors replace or attach to a rack rear door, transfer server exhaust heat to water and return near-room-temperature air without requiring processor cold plates. That can preserve standard server service procedures, but door weight, rack fit, fan interaction, condensation margin and facility-water availability remain project constraints. The linked CL20 and CL23 span medium- through very-high-density duties; their headline capacities use stated water conditions and should not be carried into a design without a project-specific coil, airflow and redundancy calculation. USystems publishes named installations at DataBank, Cambridge and other sites. It was established in 2003, operates from Bedford in the United Kingdom and is now a Legrand brand. Buyers should request capacity tables across inlet-water temperatures, server airflow and altitude, together with fan power, water-side pressure loss, sound and failure-mode data. A retrofit survey should confirm hinge loads, cabinet adapter frames, aisle clearance, hose bend radius, leak detection and how a loaded door is supported during server service. Public references do not disclose standardized installed cost, fleet-wide fan or valve failure rates, or current measured annual efficiency. Contracts should state whether USystems, the rack supplier or the mechanical contractor owns controls integration, condensation avoidance and cooling continuity when one door is opened or isolated.
    • Field updateddescription: Grundfos operates mainly on the facility-water side of the cooling chain. Its data-center references cover split-case and end-suction pumps, controls and the MIXIT mixing-loop package used with direct-to-chip cooling at NorthC. Pump selection must be made at the actual duty point: flow, head, fluid temperature, glycol concentration, redundancy and control strategy determine energy use and whether the pump remains within an efficient operating region. The linked KPVS and NBG records illustrate two plant arrangements rather than rack-integrated pumps. Buyers should request certified curves, minimum-flow limits, motor and drive data, seal materials, service clearance, vibration criteria and a staged-control sequence. Grundfos was founded in 1945, is headquartered in Bjerringbro and is primarily owned by the Grundfos Foundation. → Grundfos operates mainly on the facility-water side of the cooling chain. Its data-center references cover split-case and end-suction pumps, controls and the MIXIT mixing-loop package used with direct-to-chip cooling at NorthC. Pump selection must be made at the actual duty point: flow, head, fluid temperature, glycol concentration, redundancy and control strategy determine energy use and whether the pump remains within an efficient operating region. The linked KPVS and NBG records illustrate two plant arrangements rather than rack-integrated pumps. Buyers should request certified curves, minimum-flow limits, motor and drive data, seal materials, service clearance, vibration criteria and a staged-control sequence. Grundfos was founded in 1945, is headquartered in Bjerringbro and is primarily owned by the Grundfos Foundation. Procurement should model the full operating map as racks are commissioned, because a pump selected for ultimate build-out may spend early years far from its best-efficiency region. The submittal should show net positive suction head margin, parallel-pump stability, motor and drive efficiency, harmonic treatment and restart behavior after a power interruption. Public case studies report project outcomes but do not provide raw trend data, standardized measurement boundaries or fleet-wide reliability. Buyers should therefore seek witnessed factory tests, recent references at comparable flow and fluid conditions, stocked critical spares and a clear division of responsibility between pump controls and the site building-automation system.
    • Field updateddescription: Armstrong Fluid Technology supplies pumps and plant controls rather than server cold plates or rack manifolds. Its vertical in-line architecture is intended to reduce mechanical-room floor and piping requirements, while Design Envelope variants add variable-speed controls and communications. Armstrong also packages complete chilled-water plant rooms, as documented at Digital Realty HKG10. That broader delivery can reduce field integration, but buyers should separate factory-package performance from an individual pump's published maximum envelope. Selection still requires project flow and head, fluid properties, motor efficiency, control sequence, N+1 arrangement, minimum flow, service isolation and witnessed factory testing. Armstrong was founded in Toronto in 1934 and maintains its head office there. → Armstrong Fluid Technology supplies pumps and plant controls rather than server cold plates or rack manifolds. Its vertical in-line architecture is intended to reduce mechanical-room floor and piping requirements, while Design Envelope variants add variable-speed controls and communications. Armstrong also packages complete chilled-water plant rooms, as documented at Digital Realty HKG10. That broader delivery can reduce field integration, but buyers should separate factory-package performance from an individual pump's published maximum envelope. Selection still requires project flow and head, fluid properties, motor efficiency, control sequence, N+1 arrangement, minimum flow, service isolation and witnessed factory testing. Armstrong was founded in Toronto in 1934 and maintains its head office there. Buyers should ask for wire-to-water performance over the expected annual load distribution, not only hydraulic efficiency at one point. A vertical in-line layout can save floor area, but the design must still demonstrate pipe-load limits, vibration control, lifting access and isolation for motor or seal replacement. The public HKG10 material does not disclose installed pump models, tonnage, commissioning data or current operating efficiency. Procurement should require controls-point lists, cybersecurity and network ownership, failure and restart sequences, spare-drive strategy and performance guarantees tied to stated water temperatures, glycol percentage and sensor accuracy.
    • Field updateddescription: Belimo supplies hydronic control devices, not complete cooling loops. Its Energy Valve combines a pressure-independent valve, ultrasonic flow measurement, temperature sensors and control logic; EPIV provides electronic pressure-independent flow control without the same energy-metering feature set. Belimo explicitly positions these devices for coolant distribution units, cold plates, rear-door exchangers, two-phase condensers, computer-room air handlers and fan walls. Buyers must size the valve for the real flow range and available differential pressure, then verify glycol correction, sensor accuracy, fail position, network integration and cybersecurity. A large valve that spends most of its life near minimum controllable flow can undermine the promised control quality. Belimo was founded in 1975, is headquartered in Hinwil and is listed on the SIX Swiss Exchange. → Belimo supplies hydronic control devices, not complete cooling loops. Its Energy Valve combines a pressure-independent valve, ultrasonic flow measurement, temperature sensors and control logic; EPIV provides electronic pressure-independent flow control without the same energy-metering feature set. Belimo explicitly positions these devices for coolant distribution units, cold plates, rear-door exchangers, two-phase condensers, computer-room air handlers and fan walls. Buyers must size the valve for the real flow range and available differential pressure, then verify glycol correction, sensor accuracy, fail position, network integration and cybersecurity. A large valve that spends most of its life near minimum controllable flow can undermine the promised control quality. Belimo was founded in 1975, is headquartered in Hinwil and is listed on the SIX Swiss Exchange. The controls narrative should specify whether the building system commands position, flow, differential pressure or thermal power, and what local fallback applies after communications loss. Commissioning should verify meter accuracy with the actual glycol concentration, straight-pipe conditions and temperature-sensor placement. Public pages do not disclose long-duration data-center failure rates or one standard configuration for every rack loop; Belimo directs liquid-cooling users to its data-center team. Buyers should also define firmware management, credential ownership, cloud connectivity, trend retention, alarm routing, actuator replacement and how valve data is reconciled with CDU and facility meters.
    • Field updateddescription: Wieland's electronics-cooling business supplies cold plates rather than complete data-center loops. Its standard 4000-series plates use friction-stir-welded construction and Micro Deformation Technology pin-fin fields; custom programs can change the footprint and internal geometry for a particular heat map. The linked products are general thermal interfaces, not evidence of qualification for a named CPU, GPU or server. Buyers should provide the actual component package, heat flux, mounting load, inlet temperature, allowable pressure drop, coolant chemistry and leak-test requirement, then assign responsibility for hoses, quick disconnects and the rack manifold. Published drawings are useful for mechanical screening but do not replace a thermal validation report. Wieland was founded in Ulm in 1820 and remains headquartered there. → Wieland's electronics-cooling business supplies cold plates rather than complete data-center loops. Its standard 4000-series plates use friction-stir-welded construction and Micro Deformation Technology pin-fin fields; custom programs can change the footprint and internal geometry for a particular heat map. The linked products are general thermal interfaces, not evidence of qualification for a named CPU, GPU or server. Buyers should provide the actual component package, heat flux, mounting load, inlet temperature, allowable pressure drop, coolant chemistry and leak-test requirement, then assign responsibility for hoses, quick disconnects and the rack manifold. Published drawings are useful for mechanical screening but do not replace a thermal validation report. Wieland was founded in Ulm in 1820 and remains headquartered there. A qualification plan should include thermal mapping, flow distribution, pressure cycling, proof and burst tests, corrosion exposure, flatness after joining and inspection of the friction-stir weld. The public drawings do not state heat capacity, thermal resistance, pressure drop, proof pressure or the complete wetted-material stack for the two linked parts. Buyers should ask which dimensions are standard versus customizable, what design change triggers requalification, and whether serial traceability and cleanliness certificates accompany production units. Server warranty, mounting hardware and interface-material responsibility must also be assigned explicitly.
    • Field updatedsources: {"url":"https://www.wieland.com/about/the-company/company-profile","title":"Wieland company profile","publisher":"Wieland"}, {"url":"https://www.wieland.com/en/products/electronics-cooling","title":"Electronics cooling","publisher":"Wieland"} → {"url":"https://www.wieland.com/about/the-company/company-profile","title":"Wieland company profile","publisher":"Wieland"}, {"url":"https://www.wieland.com/en/products/electronics-cooling","title":"Wieland Electronics Cooling","publisher":"Wieland"}
    • Field updateddescription: UQD02 is CPC's compact latched coupling for server and cold-plate branches. CPC specifies 303 stainless-steel main housings, EPDM seals, stainless wetted springs, non-spill shutoff and barbed or threaded terminations. Its OCP-oriented interface can simplify multi-vendor sourcing, but buyers should verify the exact revision, mating half and approved coolant rather than assuming every UQD-labeled part interchanges. Request the flow-versus-pressure curve, spillage and air-inclusion test conditions, cleanroom or flushing requirement, mating-cycle rating and the assembled hose qualification before release. → UQD02 is CPC's compact latched coupling for server and cold-plate branches. CPC specifies 303 stainless-steel main housings, EPDM seals, stainless wetted springs, non-spill shutoff and barbed or threaded terminations. Its OCP-oriented interface can simplify multi-vendor sourcing, but buyers should verify the exact revision, mating half and approved coolant rather than assuming every UQD-labeled part interchanges. Request the flow-versus-pressure curve, spillage and air-inclusion test conditions, cleanroom or flushing requirement, mating-cycle rating and the assembled hose qualification before release. The public product page does not state one universal operating-pressure range, Cv, cycle life or replacement interval for every UQD02 part number. Procurement should therefore lock the socket, plug, seal and termination as one approved pair and require cross-mating evidence if a second source is planned. The rack qualification should measure branch pressure drop with both couplings installed, confirm that technicians can hear or feel secure engagement, and test disconnection under the permitted pressure. It should also establish dust-cap use, color or keying rules, inspection criteria for damaged latches and the procedure for replacing a coupling without contaminating the server loop.
    • Field updateddescription: The UQD08/UQDB08 family targets the higher-flow rack side of a direct-liquid-cooling loop. CPC describes 304 stainless construction, redundant seals, threaded manifold terminations and a hybrid socket-and-plug format that supports blind-mate integration while retaining OCP-oriented interoperability. The supplier says the current design meets or exceeds OCP version 2 flow requirements, but procurement should tie that claim to the submitted part numbers and test report. Alignment tolerance, support loads, coolant compatibility, pressure drop at design flow, disconnect spillage and replacement access should be checked in the rack mock-up. → The UQD08/UQDB08 family targets the higher-flow rack side of a direct-liquid-cooling loop. CPC describes 304 stainless construction, redundant seals, threaded manifold terminations and a hybrid socket-and-plug format that supports blind-mate integration while retaining OCP-oriented interoperability. The supplier says the current design meets or exceeds OCP version 2 flow requirements, but procurement should tie that claim to the submitted part numbers and test report. Alignment tolerance, support loads, coolant compatibility, pressure drop at design flow, disconnect spillage and replacement access should be checked in the rack mock-up. The public page does not provide a complete pressure-temperature envelope, flow curve, mating-cycle limit or blind-mate side-load allowance for every configuration. Buyers should request dimensional stack-up data for the rack guide system and verify that SAE-10 or SAE-12 terminations, as applicable, match the manifold without adapters that add leak points. Qualification should include repeated misaligned connections, vibration, thermal cycling, pressure decay and coolant aging. Procurement should also define whether a damaged socket can be replaced in place, which spare halves are stocked, and how compatibility is controlled when earlier and version-two components coexist.
    • Field updateddescription: Stäubli's UQD/UQDB family spans nominal diameters from 3 to 10 mm for water-glycol electronic-cooling loops. The supplier publishes a 16 bar maximum allowable pressure, automatic connection, double shutoff and model-specific flows measured with water at 5 m/s. UQDB variants add guided blind-mate alignment. Those family-level values are not a substitute for a selected socket, plug, seal code and termination. Buyers should compare the required coupling force, misalignment, pressure drop, drip volume, air inclusion and mating endurance, and should confirm which product revision is accepted by the server or rack vendor. → Stäubli's UQD/UQDB family spans nominal diameters from 3 to 10 mm for water-glycol electronic-cooling loops. The supplier publishes a 16 bar maximum allowable pressure, automatic connection, double shutoff and model-specific flows measured with water at 5 m/s. UQDB variants add guided blind-mate alignment. Those family-level values are not a substitute for a selected socket, plug, seal code and termination. Buyers should compare the required coupling force, misalignment, pressure drop, drip volume, air inclusion and mating endurance, and should confirm which product revision is accepted by the server or rack vendor. The published flow figures are calculated at a stated water velocity and do not show the full pressure-drop curve or performance with glycol. A submittal should identify wetted materials, seal code, allowable temperature, proof pressure and the exact manual or blind-mate guide hardware. Cross-supplier interchangeability should be demonstrated with the proposed mating halves after pressure, vibration and thermal cycling. Operations teams also need inspection limits for seal or face damage, instructions for depressurization and cleaning, spare-part lead times and a method to prevent inlet and return connections from being reversed.
    • Field updateddescription: CGD is Stäubli's established metal coupling family for electronic thermal management, with nominal diameters of 3, 5, 8 and 12 mm. The socket closes the circuit automatically on disconnection, while the flush face is intended to limit fluid loss and contamination. Fujitsu selected CGD for blade connections in Fugaku, providing a named operating reference, but that does not make every CGD size suitable for a new rack. Selection should cover seal code, coolant, pressure and temperature, connection force, allowable offset, service access and pressure loss across both mating halves. → CGD is Stäubli's established metal coupling family for electronic thermal management, with nominal diameters of 3, 5, 8 and 12 mm. The socket closes the circuit automatically on disconnection, while the flush face is intended to limit fluid loss and contamination. Fujitsu selected CGD for blade connections in Fugaku, providing a named operating reference, but that does not make every CGD size suitable for a new rack. Selection should cover seal code, coolant, pressure and temperature, connection force, allowable offset, service access and pressure loss across both mating halves. Stäubli's brochure lists multiple constructions and seal choices, so the project specification must not treat CGD as one uniform material set. The Fugaku source does not disclose its exact part number, coolant, duty point, observed spill or field-replacement history. Buyers should request model-specific curves and test evidence for pressure cycling, vibration, contaminated faces and repeated hot-swap operations. The mechanical mock-up should verify guide tolerances and connector support so rack or blade weight does not load the coupling. Procedures should define cleaning, cap use, visual rejection criteria and whether neighboring equipment can remain operating during service.
    • Field updateddescription: HPAHM is an industrial distribution manifold, not a purpose-qualified rack manifold. Parker builds it around a thick-gauge 316-stainless body with up to 20 welded Hi-Pro ball-valve outlets and optional integrated A-LOK tube connections. Those features may reduce field joints in a facility or row distribution assembly, but its published pressure envelope is far above a typical technology-coolant loop and its catalog does not claim OCP rack geometry, low pressure drop or coolant cleanliness. A data-center buyer would need a custom hydraulic review covering branch Cv, balancing, dead volume, glycol compatibility, flushing, drain and vent points, mounting, insulation and acceptance testing. → HPAHM is an industrial distribution manifold, not a purpose-qualified rack manifold. Parker builds it around a thick-gauge 316-stainless body with up to 20 welded Hi-Pro ball-valve outlets and optional integrated A-LOK tube connections. Those features may reduce field joints in a facility or row distribution assembly, but its published pressure envelope is far above a typical technology-coolant loop and its catalog does not claim OCP rack geometry, low pressure drop or coolant cleanliness. A data-center buyer would need a custom hydraulic review covering branch Cv, balancing, dead volume, glycol compatibility, flushing, drain and vent points, mounting, insulation and acceptance testing. The catalog states that threaded-manifold pressure can reach 2,785 psi and that flanged ratings depend on flange class; neither value establishes efficient low-pressure coolant distribution. Parker should provide branch and header pressure-drop calculations at the proposed flows, internal-surface and passivation requirements, weld and non-destructive-test records, and a documented cleaning state. The integrator must decide whether the built-in ball valves provide isolation only or acceptable balancing, and should specify sensor ports, high-point vents, low-point drains, labeling and a way to remove one branch without contaminating others.
    • Field updatedsources: {"url":"https://www.parker.com/content/dam/Parker-com/Literature/Instrumentation-Products-Division/Catalogs/Parker_Distribution_Manifolds_4190-DM.pdf","title":"Parker distribution manifolds catalog — HPAHM Series","publisher":"Parker Hannifin"}, {"url":"https://www.parker.com/us/en/additional-information/data-center-cooling.html","title":"Data center liquid cooling solutions","publisher":"Parker Hannifin"} → {"url":"https://www.parker.com/content/dam/Parker-com/Literature/Instrumentation-Products-Division/Catalogs/Parker_Distribution_Manifolds_4190-DM.pdf","title":"Parker Distribution Manifolds Catalog","publisher":"Parker Hannifin"}, {"url":"https://www.parker.com/us/en/additional-information/data-center-cooling.html","title":"Data center liquid cooling solutions","publisher":"Parker Hannifin"}
    • Field updateddescription: HPAHMC retains the welded 316-stainless construction and individually valved branches of HPAHM while Parker reports a 40% shorter and nearly 20% lighter package. The catalog positions it for industrial high-pressure systems, not specifically for rack liquid cooling. Its compact format could be relevant to a row or facility distribution skid, but only after the supplier or integrator demonstrates acceptable pressure drop, flow uniformity, coolant cleanliness and service access at data-center conditions. Buyers should also define branch connection standards, isolation and drain strategy, corrosion controls, factory pressure testing and whether the assembly can be maintained without interrupting adjacent racks. → HPAHMC retains the welded 316-stainless construction and individually valved branches of HPAHM while Parker reports a 40% shorter and nearly 20% lighter package. The catalog positions it for industrial high-pressure systems, not specifically for rack liquid cooling. Its compact format could be relevant to a row or facility distribution skid, but only after the supplier or integrator demonstrates acceptable pressure drop, flow uniformity, coolant cleanliness and service access at data-center conditions. Buyers should also define branch connection standards, isolation and drain strategy, corrosion controls, factory pressure testing and whether the assembly can be maintained without interrupting adjacent racks. The reported size and weight reductions are comparisons with Parker's standard industrial manifold, not with purpose-built data-center rack manifolds. Public information does not give overall dimensions for every outlet count, branch Cv, header volume or a qualified technology-coolant cleanliness level. A project submittal should include a selected general arrangement, mounting reactions, flow modeling, weld traceability and pressure-test acceptance criteria. Operators should verify handle access in the installed orientation, positive branch identification, lockout provisions and enough clearance to service fittings without imposing loads on the header.
    • Field updatedsources: {"url":"https://www.parker.com/content/dam/Parker-com/Literature/Instrumentation-Products-Division/Catalogs/Parker_Distribution_Manifolds_4190-DM.pdf","title":"Parker distribution manifolds catalog — HPAHMC Series","publisher":"Parker Hannifin"}, {"url":"https://www.parker.com/us/en/additional-information/data-center-cooling.html","title":"Data center liquid cooling solutions","publisher":"Parker Hannifin"} → {"url":"https://www.parker.com/content/dam/Parker-com/Literature/Instrumentation-Products-Division/Catalogs/Parker_Distribution_Manifolds_4190-DM.pdf","title":"Parker Distribution Manifolds Catalog","publisher":"Parker Hannifin"}, {"url":"https://www.parker.com/us/en/additional-information/data-center-cooling.html","title":"Data center liquid cooling solutions","publisher":"Parker Hannifin"}
    • Field updateddescription: CL20 uses a water coil, electronically commutated fans and ColdLogik controls to remove server exhaust heat at the rack. USystems offers 42U and 47U variants in 600 or 800 mm widths and lists leak detection plus TCP/IP, SNMP and BACnet. The 93 kW rating is tied to 14°C inlet water; rack airflow, exhaust temperature, water flow and redundancy will determine usable duty. Buyers should check filled weight, hinges and rack adapter, server-fan back pressure, fan-failure behavior, valve authority, dew-point margin, hose routing and whether room cooling remains necessary during door maintenance. → CL20 uses a water coil, electronically commutated fans and ColdLogik controls to remove server exhaust heat at the rack. USystems offers 42U and 47U variants in 600 or 800 mm widths and lists leak detection plus TCP/IP, SNMP and BACnet. The 93 kW rating is tied to 14°C inlet water; rack airflow, exhaust temperature, water flow and redundancy will determine usable duty. Buyers should check filled weight, hinges and rack adapter, server-fan back pressure, fan-failure behavior, valve authority, dew-point margin, hose routing and whether room cooling remains necessary during door maintenance. The supplier FAQ notes that model-dependent filled weights can exceed 90 kg across its rear-door range, so the selected-door drawing and rack certification are essential. A proposal should include capacity and fan-power data at the project's water and air conditions, water-side pressure loss, sound, maximum working pressure and control points. Site testing should simulate an opened door, failed fan, lost water flow and high dew point. Procurement should also identify who supplies flexible hoses, isolation valves and leak alarms and who warrants their assembled interfaces.
    • Field updateddescription: CL23 extends ColdLogik rear-door cooling into duties normally associated with direct-to-chip systems. USystems markets 200 kW per rack and reports 204 kW at 14°C inlet water in its technical FAQ. That headline should be treated as a design point, not as a drop-in rating for any rack: the server fleet must move enough air through the coil, and the facility loop must provide the required flow and pressure. Procurement should demand a selected-unit schedule covering dimensions, filled weight, fan and pump energy, sound, water-side pressure loss, controls, failure modes and capacity at the project's supply temperature. → CL23 extends ColdLogik rear-door cooling into duties normally associated with direct-to-chip systems. USystems markets 200 kW per rack and reports 204 kW at 14°C inlet water in its technical FAQ. That headline should be treated as a design point, not as a drop-in rating for any rack: the server fleet must move enough air through the coil, and the facility loop must provide the required flow and pressure. Procurement should demand a selected-unit schedule covering dimensions, filled weight, fan and pump energy, sound, water-side pressure loss, controls, failure modes and capacity at the project's supply temperature. Public material does not state the airflow, water flow, return temperature, rack geometry or redundancy assumptions behind the 204 kW result. Those conditions should be fixed in the performance guarantee and reproduced during factory or site acceptance testing. The rack review must confirm server-fan capability against door resistance and whether non-uniform exhaust creates coil or inlet hot spots. Buyers should also establish hose support, door-opening clearance, condensate avoidance, leak response and the fallback cooling available while a door, control board or water branch is isolated.
    • Field updateddescription: KPVS is a plant-side pump rather than a rack coolant pump. Its double-suction and double-volute construction is intended to reduce axial and radial loads, while the split coupling allows motor and seal service without disturbing the pipework. Grundfos reports that selected KPVS units at an unnamed hyperscale operator were 5% more efficient in chilled-water and 4% more efficient in condenser-water duty than specified alternatives. Those are project results, not a universal efficiency margin. Buyers need the selected curve, motor, net positive suction head, minimum flow, seal plan, vibration limit and operating sequence across all parallel pumps. → KPVS is a plant-side pump rather than a rack coolant pump. Its double-suction and double-volute construction is intended to reduce axial and radial loads, while the split coupling allows motor and seal service without disturbing the pipework. Grundfos reports that selected KPVS units at an unnamed hyperscale operator were 5% more efficient in chilled-water and 4% more efficient in condenser-water duty than specified alternatives. Those are project results, not a universal efficiency margin. Buyers need the selected curve, motor, net positive suction head, minimum flow, seal plan, vibration limit and operating sequence across all parallel pumps. The cited customer and duty points are undisclosed, so the reported percentages cannot be normalized for flow, head, impeller selection or control strategy. A bid evaluation should compare certified curves at identical duties and include motor and variable-speed-drive losses. It should also test parallel stability at phased loads, define minimum run time and standby rotation, and show how one pump is isolated and serviced while required cooling remains available. Procurement should request seal and bearing life assumptions, vibration baselines, spare rotating assemblies, regional response times and witnessed performance-test tolerances.
    • Field updateddescription: Grundfos identifies this NBG configuration in its Digital Realty case study as the pump selected to lift water from Millwall Inner Dock through the primary heat-exchanger circuit. The supplier describes a close-coupled, single-stage unit with an IE3 motor and variable-speed drive. The case establishes a demanding source-water use, but it does not publish the final flow, head, redundancy or measured seasonal efficiency. A new project should not reuse the model from the reference alone; it must recalculate suction conditions, screen and fouling losses, corrosion materials, environmental limits, duty/standby arrangement and service access. → Grundfos identifies this NBG configuration in its Digital Realty case study as the pump selected to lift water from Millwall Inner Dock through the primary heat-exchanger circuit. The supplier describes a close-coupled, single-stage unit with an IE3 motor and variable-speed drive. The case establishes a demanding source-water use, but it does not publish the final flow, head, redundancy or measured seasonal efficiency. A new project should not reuse the model from the reference alone; it must recalculate suction conditions, screen and fouling losses, corrosion materials, environmental limits, duty/standby arrangement and service access. Source-water service also requires explicit treatment of debris screens, biological fouling, corrosion, low-water conditions and environmental discharge limits that may not apply to a closed rack loop. Buyers should obtain the selected pump curve, net positive suction head requirement, minimum continuous flow, materials, seal arrangement and drive-control sequence. The acceptance plan should verify lifting duty at worst water level and fouled-system resistance, plus automatic transfer to standby equipment. Public evidence does not state the installed quantity or maintenance history, so current operator references and service records remain necessary.
    • Field updateddescription: The 4300 family addresses primary, secondary or condenser-water duties where plant-room footprint and serviceability matter. Armstrong publishes a broad envelope up to 28,000 US gpm, 500 feet of head and 1,250 hp, with 1.5- to 20-inch connections. No project will use those maxima simultaneously, and efficiency depends on the selected impeller, speed and duty point. Buyers should require a certified selection showing best-efficiency-point margin, net positive suction head, motor and drive losses, minimum-flow controls, seal materials, vibration and sound, plus the sequence for multiple pumps under normal and failed conditions. → The 4300 family addresses primary, secondary or condenser-water duties where plant-room footprint and serviceability matter. Armstrong publishes a broad envelope up to 28,000 US gpm, 500 feet of head and 1,250 hp, with 1.5- to 20-inch connections. No project will use those maxima simultaneously, and efficiency depends on the selected impeller, speed and duty point. Buyers should require a certified selection showing best-efficiency-point margin, net positive suction head, motor and drive losses, minimum-flow controls, seal materials, vibration and sound, plus the sequence for multiple pumps under normal and failed conditions. Because the family spans many sizes and constructions, every procurement value must come from the selected submittal rather than the family maxima. The review should include casing pressure class, impeller trim, motor enclosure, drive harmonics, communication protocol, ambient derating and fluid-temperature limits. A maintainability check should confirm lifting paths, coupling and seal access, valve placement and whether an individual pump can be removed without draining a common header. Factory testing should state measurement tolerances and acceptance points at design, part load and runout, with project fluid corrections where applicable.
    • Field updateddescription: The 4380 is the smaller vertical in-line family beside Armstrong's 4300. Its published envelope reaches 2,500 US gpm, 300 feet of head and 60 hp, with 1.5- to 8-inch connections. Armstrong emphasizes elimination of inertia bases, field alignment and some flexible connectors, but project seismic, vibration and piping-stress requirements still govern. Selection should compare wire-to-water efficiency over the expected load profile, not only full-load pump efficiency. Buyers also need motor enclosure, variable-speed drive, communications, seal materials, isolation, minimum flow, spare strategy and access to remove the motor or rotating assembly. → The 4380 is the smaller vertical in-line family beside Armstrong's 4300. Its published envelope reaches 2,500 US gpm, 300 feet of head and 60 hp, with 1.5- to 8-inch connections. Armstrong emphasizes elimination of inertia bases, field alignment and some flexible connectors, but project seismic, vibration and piping-stress requirements still govern. Selection should compare wire-to-water efficiency over the expected load profile, not only full-load pump efficiency. Buyers also need motor enclosure, variable-speed drive, communications, seal materials, isolation, minimum flow, spare strategy and access to remove the motor or rotating assembly. The broad family envelope does not disclose the efficiency, power, sound or net positive suction head for a proposed duty. The selected schedule should therefore fix impeller, speed, motor and controls and show operation as data-hall load phases grow. Pipe-mounted installation must be checked for nozzle loads, supports, seismic restraint and maintenance lifting. Site acceptance should verify rotation, vibration, sensor calibration, standby changeover and restart after power loss. Buyers should also require backed-up controller settings and identify whether pump logic or the building system owns pressure reset and staging.
    • Field updateddescription: EV200H combines a two-way control valve, ultrasonic flow measurement, supply and return temperature sensing and Belimo's energy-control logic. The listed configuration supports water or up to 60% glycol and several building-control protocols. Its 100 gpm nominal flow is a ceiling, not a recommended continuous setpoint; valve authority and measurement accuracy must be checked across the rack-loop turndown. For direct-to-chip use, Belimo asks customers to engage its data-center team. Buyers should also define fail-safe behavior, differential-pressure range, sensor placement, glycol compensation, data retention, cloud policy and operation when network control is lost. → EV200H combines a two-way control valve, ultrasonic flow measurement, supply and return temperature sensing and Belimo's energy-control logic. The listed configuration supports water or up to 60% glycol and several building-control protocols. Its 100 gpm nominal flow is a ceiling, not a recommended continuous setpoint; valve authority and measurement accuracy must be checked across the rack-loop turndown. For direct-to-chip use, Belimo asks customers to engage its data-center team. Buyers should also define fail-safe behavior, differential-pressure range, sensor placement, glycol compensation, data retention, cloud policy and operation when network control is lost. The product page does not establish that one configuration is appropriate for a server branch, rack, CDU or facility coil; each location has a different rangeability and failure consequence. The controls submittal should identify commanded variables, update rates, alarm thresholds, fallback values and whether cloud connectivity is disabled or required. Commissioning should compare indicated flow and thermal power with calibrated references using the actual fluid. Procurement should also cover firmware support, credential custody, replacement-sensor calibration, cybersecurity review and retrieval of locally logged data after a controller failure.
    • Field updateddescription: EP200H is a 100 gpm electronic pressure-independent valve for controlling water flow despite changing system pressure. The listed configuration permits a 25% to 100% adjustable flow range, up to 60% glycol and an 8 to 50 psi differential-pressure window. Unlike the Energy Valve record, this product is centered on flow control rather than integrated thermal-energy measurement. A buyer should verify that the smallest operating load stays above the controllable minimum, then define fail position, actuator power, network protocol, glycol setup, shutoff leakage, service isolation and commissioning access. Excess differential pressure wastes pump energy even when the valve holds flow. → EP200H is a 100 gpm electronic pressure-independent valve for controlling water flow despite changing system pressure. The listed configuration permits a 25% to 100% adjustable flow range, up to 60% glycol and an 8 to 50 psi differential-pressure window. Unlike the Energy Valve record, this product is centered on flow control rather than integrated thermal-energy measurement. A buyer should verify that the smallest operating load stays above the controllable minimum, then define fail position, actuator power, network protocol, glycol setup, shutoff leakage, service isolation and commissioning access. Excess differential pressure wastes pump energy even when the valve holds flow. The published 25% lower adjustment boundary means this size may be unsuitable where phased racks create deeper turndown; parallel smaller valves or another size may be required. The engineer should calculate available differential pressure through every operating mode and ensure the pump-control sequence does not fight the valve. Functional testing should cover loss of actuator power, communications and differential pressure, as well as restoration behavior. Procurement should specify the exact enclosure, fail-safe option, permitted mounting orientation, network objects, firmware process and manual means of isolating or replacing the assembly.
    • Field updateddescription: CP-E-4009-S3XJ is a general thermal-interface plate, not a socket-specific server cold plate. Wieland's drawing shows a 225 by 130 mm body, three thermal-interface zones, 4 mm-tall MDT pin fins with a 0.5 mm channel gap and two SAE J1926-1 -6 ports. Those dimensions support early mechanical screening, but the source does not publish a heat-load rating, flow, pressure drop, thermal resistance, proof pressure or wetted-material stack for this exact drawing. Buyers should obtain those values under their coolant and inlet-temperature conditions and validate mounting flatness, interface material, clamping load and leak integrity. → CP-E-4009-S3XJ is a general thermal-interface plate, not a socket-specific server cold plate. Wieland's drawing shows a 225 by 130 mm body, three thermal-interface zones, 4 mm-tall MDT pin fins with a 0.5 mm channel gap and two SAE J1926-1 -6 ports. Those dimensions support early mechanical screening, but the source does not publish a heat-load rating, flow, pressure drop, thermal resistance, proof pressure or wetted-material stack for this exact drawing. Buyers should obtain those values under their coolant and inlet-temperature conditions and validate mounting flatness, interface material, clamping load and leak integrity. The drawing also does not establish compatibility with a named CPU, GPU, socket or server warranty. Qualification should use the real heat map and mounting stack, measure temperature uniformity and pressure drop across the expected flow range, and include blocked-flow and pump-restart cases. Materials and joining records should be reviewed against the complete loop to avoid galvanic or coolant-chemistry problems. Procurement should require dimensional inspection, cleanliness, proof and leak-test certificates, traceability and an agreed change-control threshold for pin-fin geometry, port machining or friction-stir-weld parameters.
    • Field updatedsources: {"url":"https://www.wieland.com/en/content/download/21425/file/CP-E-4009-S3XJ.pdf","title":"CP-E-4009-S3XJ product drawing","publisher":"Wieland"}, {"url":"https://www.wieland.com/en/products/electronics-cooling","title":"Wieland electronics cooling","publisher":"Wieland"} → {"url":"https://www.wieland.com/en/content/download/21425/file/CP-E-4009-S3XJ.pdf","title":"CP-E-4009-S3XJ product drawing","publisher":"Wieland"}, {"url":"https://www.wieland.com/en/products/electronics-cooling","title":"Wieland Electronics Cooling","publisher":"Wieland"}
    • Field updateddescription: CP-E-4013-S3XJ is another standard Wieland thermal-interface plate, with a longer footprint and multiple mounting and interface zones. The drawing specifies 20-fins-per-inch MDT pin fins, a 0.5 mm channel gap, 4 mm fin height and two SAE J1926-1 -6 ports. It does not identify a processor, server or rated wattage, so it should not be represented as a ready-qualified AI cold plate. Procurement should request thermal and hydraulic test data for the proposed heat map, plus wetted materials, coolant limits, proof and burst pressure, joining inspection, flatness, corrosion controls and an agreed cleaning specification. → CP-E-4013-S3XJ is another standard Wieland thermal-interface plate, with a longer footprint and multiple mounting and interface zones. The drawing specifies 20-fins-per-inch MDT pin fins, a 0.5 mm channel gap, 4 mm fin height and two SAE J1926-1 -6 ports. It does not identify a processor, server or rated wattage, so it should not be represented as a ready-qualified AI cold plate. Procurement should request thermal and hydraulic test data for the proposed heat map, plus wetted materials, coolant limits, proof and burst pressure, joining inspection, flatness, corrosion controls and an agreed cleaning specification. The larger footprint does not by itself indicate greater capacity, because performance depends on where heat enters the plate and how coolant crosses the internal field. A server integration review should confirm mounting-hole use, component clearances, hose loads and service access before a thermal prototype is built. Validation should measure local temperatures, total pressure drop and flow distribution under normal, minimum-flow and blocked-branch conditions. Production approval should define dimensional sampling, leak-test sensitivity, cleanliness, serial traceability and notification requirements for material, machining, weld or internal-geometry changes.
    • Field updatedsources: {"url":"https://www.wieland.com/en/content/download/21426/file/CP-E-4013-S3XJ.pdf","title":"CP-E-4013-S3XJ product drawing","publisher":"Wieland"}, {"url":"https://www.wieland.com/en/products/electronics-cooling","title":"Wieland electronics cooling","publisher":"Wieland"} → {"url":"https://www.wieland.com/en/content/download/21426/file/CP-E-4013-S3XJ.pdf","title":"CP-E-4013-S3XJ product drawing","publisher":"Wieland"}, {"url":"https://www.wieland.com/en/products/electronics-cooling","title":"Wieland Electronics Cooling","publisher":"Wieland"}
    • Field updateddescription: Status: operating. Stäubli says Fujitsu selected CGD metal couplings to connect liquid-cooled blades to Fugaku's chassis and to permit tool-free hot swapping with flush-face, non-spill connections. Its current data-center page reports 400 racks, more than 150,000 processors and 384 connection points per rack. RIKEN independently confirms that development was completed and shared use began on 9 March 2021. The sources establish an operating named system and connector role, but they do not publish coolant chemistry, coupling size, pressure drop, leak history or maintenance replacement rate. Buyers should treat Fugaku as evidence of deployment scale, not as proof that the same connector selection fits a different rack or coolant. → Status: operating. Stäubli says Fujitsu selected CGD metal couplings to connect liquid-cooled blades to Fugaku's chassis and to permit tool-free hot swapping with flush-face, non-spill connections. Its current data-center page reports 400 racks, more than 150,000 processors and 384 connection points per rack. RIKEN independently confirms that development was completed and shared use began on 9 March 2021. The sources establish an operating named system and connector role, but they do not publish coolant chemistry, coupling size, pressure drop, leak history or maintenance replacement rate. Buyers should treat Fugaku as evidence of deployment scale, not as proof that the same connector selection fits a different rack or coolant. The Stäubli story was written while Fugaku was being installed, whereas RIKEN provides the firmer operating milestone; neither source is a connector acceptance report. The public record does not identify the number of coupling pairs in active coolant service versus other reported connection points, the pressure and temperature envelope, the guide mechanism's tolerance, or any leakage events over time. Due diligence should ask Stäubli and Fujitsu for the exact CGD configuration, qualification standard, coolant and material stack, hot-swap procedure, inspection interval, spare strategy and field-return data. A prospective buyer should also reproduce blade insertion and removal with the proposed chassis tolerances and verify pressure drop, residual spill and air inclusion after repeated cycling. Fugaku supports confidence that CGD can be engineered into a very large system; it does not establish an independently measured failure rate or lifecycle cost.
    • Field updateddescription: Status: operating. USystems and DataBank describe ColdLogik rear-door heat exchangers at ATL1 in Georgia Tech's CODA development. The published design point is 50 kW per enclosure with 73°F warm water, with a stated path to 100 kW per rack after limited infrastructure changes. DataBank's current facility page confirms ATL1 remains an operating site hosting Georgia Tech's High-Performance Computing Center and advertises liquid-cooled cabinet capacity. The vendor article's savings claims are not backed by a disclosed measurement protocol, and the installed door count, actual IT load and current water conditions are not public. The record therefore supports the architecture and operating site, not the full claimed efficiency comparison. → Status: operating. USystems and DataBank describe ColdLogik rear-door heat exchangers at ATL1 in Georgia Tech's CODA development. The published design point is 50 kW per enclosure with 73°F warm water, with a stated path to 100 kW per rack after limited infrastructure changes. DataBank's current facility page confirms ATL1 remains an operating site hosting Georgia Tech's High-Performance Computing Center and advertises liquid-cooled cabinet capacity. The vendor article's savings claims are not backed by a disclosed measurement protocol, and the installed door count, actual IT load and current water conditions are not public. The record therefore supports the architecture and operating site, not the full claimed efficiency comparison. DataBank's current page lists 7.1 MW of facility critical IT load, but that figure must not be attributed to the ColdLogik subsystem; the cooling source does not state how many racks or megawatts use rear doors. Likewise, the 100 kW statement describes potential after infrastructure changes rather than demonstrated operating rack density. Procurement teams should request current rack counts, door models, supply and return temperatures, water flow, fan power, maintenance history and measured seasonal cooling energy. They should also ask how ATL1 maintains temperatures while a door is open or isolated, how leaks are detected, and whether server-fan settings changed. An operator reference should separate original design targets from present operation and identify any control, hinge, hose or water-quality lessons learned since commissioning.
    • Field updateddescription: Status: operating. The University of Cambridge states that research computing moved into the £20 million West Cambridge Data Centre in 2015. USystems reports that ColdLogik rear-door heat exchangers later increased cabinet density from 30 to 44 kW and raised data-hall capacity from 900 kW to 1.2 MW. Those figures come from the cooling supplier rather than an independently published acceptance test, but the university confirms the operating facility and continued research-computing role. Public sources do not disclose the current door count, inlet-water temperature, annual cooling energy, redundancy arrangement or whether every hall uses the same design. Procurement teams should use the reference to ask for operator contacts and measured seasonal data. → Status: operating. The University of Cambridge states that research computing moved into the £20 million West Cambridge Data Centre in 2015. USystems reports that ColdLogik rear-door heat exchangers later increased cabinet density from 30 to 44 kW and raised data-hall capacity from 900 kW to 1.2 MW. Those figures come from the cooling supplier rather than an independently published acceptance test, but the university confirms the operating facility and continued research-computing role. Public sources do not disclose the current door count, inlet-water temperature, annual cooling energy, redundancy arrangement or whether every hall uses the same design. Procurement teams should use the reference to ask for operator contacts and measured seasonal data. The university history confirms relocation and continued use of the facility but does not independently attribute the later capacity increase to a particular ColdLogik model. The 1.2 MW figure should therefore remain a supplier-reported hall value, not a measured IT load or proof that all cabinets operate at 44 kW. A reference interview should establish the installed models and quantities, typical and peak rack loads, water temperatures, fan energy, leak events, maintenance burden and changes made after commissioning. Buyers should also ask whether capacity growth required plant, piping or controls changes beyond the rear doors, and how cooling continuity is maintained during door service. Annual trend data with a defined electrical boundary would be needed before using the reference to predict PUE or operating cost.
    • Field updateddescription: Status: operating. Grundfos reports that NorthC, installer Hamer and Grundfos developed a MIXIT proof of concept for direct chip cooling beginning in 2021 and delivered it in mid-2022. The case says water circulates through chip-mounted cooling blocks and that MIXIT responds to rapid temperature changes; a customer quotation states that the system was still running reliably nearly three years later. NorthC independently confirms that its High Tech Campus site supports liquid cooling and exchanges waste heat and cold water through a campus ring. The public record does not identify server models, installed thermal capacity, rack density, loop temperatures, pump energy or measured heat recovery. The deployment demonstrates control integration, not a quantified whole-site efficiency result. → Status: operating. Grundfos reports that NorthC, installer Hamer and Grundfos developed a MIXIT proof of concept for direct chip cooling beginning in 2021 and delivered it in mid-2022. The case says water circulates through chip-mounted cooling blocks and that MIXIT responds to rapid temperature changes; a customer quotation states that the system was still running reliably nearly three years later. NorthC independently confirms that its High Tech Campus site supports liquid cooling and exchanges waste heat and cold water through a campus ring. The public record does not identify server models, installed thermal capacity, rack density, loop temperatures, pump energy or measured heat recovery. The deployment demonstrates control integration, not a quantified whole-site efficiency result. The June 2022 date in this record represents the reported mid-2022 delivery period; the cited sources do not publish a precise commissioning day. MIXIT's exact configuration, valve size, sensors, controlled variable and relationship to pumps or a CDU are also undisclosed. Procurement teams should ask NorthC or Hamer for a loop diagram, control sequence, temperature and flow trends, alarm history, maintenance interventions and behavior during server or network changes. They should distinguish heat made available to the campus ring from heat actually reused by a customer and quantify backup rejection when campus demand is absent. Evidence that would strengthen the record includes a named server platform, installed kilowatts, measured pump and cooling energy, water temperatures, uptime and acceptance criteria. Until then, capacity and rack density correctly remain not publicly disclosed.
    • Field updateddescription: Status: operating. Armstrong reported in September 2016 that it supplied off-site-manufactured, integrated chilled-water plant rooms for the second phase of HKG10, then a Digital Realty and CenturyLink joint venture. The packages were assembled and tested at Armstrong's Halesowen factory and used variable-primary distribution. Digital Realty's current HKG10 page confirms the facility is operating at 33 Chun Choi Street with N+1 cooling, although it does not identify the plant supplier. Public sources do not disclose pump models, plant tonnage, measured efficiency, water use, commissioning results or how much of today's facility remains served by the 2016 packages. The record supports a real delivered plant reference, with performance claims still supplier reported. → Status: operating. Armstrong reported in September 2016 that it supplied off-site-manufactured, integrated chilled-water plant rooms for the second phase of HKG10, then a Digital Realty and CenturyLink joint venture. The packages were assembled and tested at Armstrong's Halesowen factory and used variable-primary distribution. Digital Realty's current HKG10 page confirms the facility is operating at 33 Chun Choi Street with N+1 cooling, although it does not identify the plant supplier. Public sources do not disclose pump models, plant tonnage, measured efficiency, water use, commissioning results or how much of today's facility remains served by the 2016 packages. The record supports a real delivered plant reference, with performance claims still supplier reported. Digital Realty's current N+1 statement describes the facility today but does not establish the redundancy arrangement of each 2016 package or prove that the original plant remains unchanged. Armstrong's article describes factory integration and testing without publishing the test schedule, witnessed results, controls architecture or post-commissioning energy data. A buyer evaluating packaged plant should request the original and current equipment schedules, package boundaries, design water temperatures, pump curves, staging logic, failure tests, transport splits and site reconnection work. Reference questions should cover factory-versus-field defects, commissioning duration, spare parts, controls updates and service response in Hong Kong. Measured annual chiller, pump and heat-rejection energy under local weather would be needed before using this project as an efficiency benchmark; no such dataset appears in the cited public sources.
    • Field updateddescription: Castrol brings lubricant formulation, materials testing, fluid handling, and a global supply organization to data-center cooling. Its current Castrol ON range includes synthetic-hydrocarbon dielectric fluids for single-phase immersion and a separate PG 25 fluid for direct liquid cooling. This batch links only the two immersion products for which Castrol publishes direct product data. The product sheets provide useful baseline properties, but typical values are not acceptance limits and do not establish compatibility with a particular server, tank, seal, cable, or warranty. Castrol also operates an immersion research installation at its Pangbourne headquarters with Hypertec servers and Submer tanks. That is a development environment, not evidence of a production customer fleet. Buyers should require the current regional safety data sheet, batch certificate, approved-material list, fire and spill plan, storage conditions, filtration and sampling limits, end-of-life route, and written approval from the tank and server suppliers. Public sources do not disclose delivered pricing, installed fleet size, fluid life in production, or independent long-duration reliability. → Castrol brings lubricant formulation, materials testing, fluid handling, and a global supply organization to data-center cooling. Its current Castrol ON range includes synthetic-hydrocarbon dielectric fluids for single-phase immersion and a separate PG 25 fluid for direct liquid cooling. This batch links only the two immersion products for which Castrol publishes direct product data. The product sheets provide useful baseline properties, but typical values are not acceptance limits and do not establish compatibility with a particular server, tank, seal, cable, or warranty. Castrol also operates an immersion research installation at its Pangbourne headquarters with Hypertec servers and Submer tanks. That is a development environment, not evidence of a production customer fleet. Buyers should require the current regional safety data sheet, batch certificate, approved-material list, fire and spill plan, storage conditions, filtration and sampling limits, end-of-life route, and written approval from the tank and server suppliers. Public sources do not disclose delivered pricing, installed fleet size, fluid life in production, or independent long-duration reliability. A request for quotation should lock the exact DC 15 or DC 20 formulation and revision rather than permit an unspecified Castrol ON substitute. It should also identify who owns fluid analysis after commissioning, what measured change triggers filtration or replacement, how replacement fluid will be sourced in the operating region, and whether the tank warranty remains valid after top-ups from later production batches.
    • Field updateddescription: Valvoline Global Operations has extended its automotive and industrial fluid business into data-center thermal management under the Beyond by Valvoline name. The cited portfolio identifies an HTF-DE1 dielectric immersion fluid and PG25 Advanced heat-transfer fluid for direct-to-chip and heat-exchange loops. Valvoline also publishes an 18-month validation with Iceotope hardware, HPE servers, and NVIDIA A40 graphics processors. That test is useful evidence of one fluid-hardware combination, but its 5.2 kW test load is not a rack-scale capacity demonstration and does not qualify other servers or materials. Product availability varies by region, and the public portfolio page does not disclose full chemistry, inhibitor package, service life, concentration tolerances, or a complete list of approved wetted materials. Procurement should obtain the current product and safety sheets, fluid-quality limits, fill and sampling procedure, compatibility approvals, warranty terms, contamination thresholds, corrective actions, storage life, and recovery or disposal route. The company is an Aramco affiliate; it is separate from the publicly traded Valvoline retail-services business. → Valvoline Global Operations has extended its automotive and industrial fluid business into data-center thermal management under the Beyond by Valvoline name. The cited portfolio identifies an HTF-DE1 dielectric immersion fluid and PG25 Advanced heat-transfer fluid for direct-to-chip and heat-exchange loops. Valvoline also publishes an 18-month validation with Iceotope hardware, HPE servers, and NVIDIA A40 graphics processors. That test is useful evidence of one fluid-hardware combination, but its 5.2 kW test load is not a rack-scale capacity demonstration and does not qualify other servers or materials. Product availability varies by region, and the public portfolio page does not disclose full chemistry, inhibitor package, service life, concentration tolerances, or a complete list of approved wetted materials. Procurement should obtain the current product and safety sheets, fluid-quality limits, fill and sampling procedure, compatibility approvals, warranty terms, contamination thresholds, corrective actions, storage life, and recovery or disposal route. The company is an Aramco affiliate; it is separate from the publicly traded Valvoline retail-services business. HTF-DE1 and PG25 Advanced serve different architectures and should not share one generic fluid specification, sampling limit, or spill procedure. Buyers should also establish which Valvoline Global legal entity supplies the fluid, where retained reference samples will be stored, whether laboratory interpretation is included, and how a result outside limits is divided among the fluid supplier, cooling-system vendor, and server manufacturer.
    • Field updateddescription: Ecolab, through Nalco Water, supplies chemistry, controllers, monitoring, remote support, and field service for cooling-water systems. Its data-center portfolio spans open cooling towers, adiabatic heat rejection, and direct-to-chip loops. The linked products show the facility-water side: 3D TRASAR Cooling Water combines chemistry and monitoring for towers and chillers, while the adiabatic program adds unit-level conductivity and flow measurement, centralized dosing, alarms, and digital records. Ecolab also owns CoolIT Systems, but this record describes Ecolab's water-management offer rather than duplicating CoolIT's cooling hardware. Buyers should define one water specification across equipment vendors, including pH, conductivity, chlorides, hardness, corrosion, microbiological control, suspended solids, sampling methods, alarm and action limits, and authority to dose or drain. They should also separate supplier-reported savings from guaranteed project outcomes: results depend on source water, metallurgy, heat flux, cycles of concentration, weather, and operating discipline. Public product pages do not state a universal chemical formulation, installed price, sensor calibration interval, data-retention term, or service response commitment. → Ecolab, through Nalco Water, supplies chemistry, controllers, monitoring, remote support, and field service for cooling-water systems. Its data-center portfolio spans open cooling towers, adiabatic heat rejection, and direct-to-chip loops. The linked products show the facility-water side: 3D TRASAR Cooling Water combines chemistry and monitoring for towers and chillers, while the adiabatic program adds unit-level conductivity and flow measurement, centralized dosing, alarms, and digital records. Ecolab also owns CoolIT Systems, but this record describes Ecolab's water-management offer rather than duplicating CoolIT's cooling hardware. Buyers should define one water specification across equipment vendors, including pH, conductivity, chlorides, hardness, corrosion, microbiological control, suspended solids, sampling methods, alarm and action limits, and authority to dose or drain. They should also separate supplier-reported savings from guaranteed project outcomes: results depend on source water, metallurgy, heat flux, cycles of concentration, weather, and operating discipline. Public product pages do not state a universal chemical formulation, installed price, sensor calibration interval, data-retention term, or service response commitment. Open-tower treatment, adiabatic-media treatment, and a closed technology loop have different contamination and warranty boundaries; an Ecolab master agreement should not collapse them into one program. Procurement should name the approved laboratory methods, baseline samples, reporting frequency, data export format, escalation contacts, included site visits, consumable replenishment, and the party authorized to change dose or blowdown setpoints.
    • Field updateddescription: Xylem supplies the pumps and controls that move facility water through chilled-water, cooling-tower, heat-recovery, and some liquid-cooling interfaces. Its data-center brochure identifies Bell & Gossett end-suction and inline pumps, Goulds Water Technology multistage pumps, and hydrovar X smart-motor packages. The linked e-1510X and e-SV records represent two different duties: high-flow circulation and higher-head multistage service. Neither model number is a complete selection. A buyer must provide the actual flow, system curve, fluid and glycol concentration, temperature range, suction conditions, elevation, materials, redundancy philosophy, electrical service, controls, and expected turndown. Pump efficiency at the design point is not enough; phased data halls can operate at low load for years, and a standby pump only protects service if valves, power, controls, and automatic changeover are tested. Xylem publishes a named NREL deployment involving Bell & Gossett pumps and warm-water heat recovery. It does not disclose fleet-wide failure rates or guarantee that the same arrangement fits a direct-to-chip technology loop. Current headquarters information is taken from Xylem's 2025 annual report. → Xylem supplies the pumps and controls that move facility water through chilled-water, cooling-tower, heat-recovery, and some liquid-cooling interfaces. Its data-center brochure identifies Bell & Gossett end-suction and inline pumps, Goulds Water Technology multistage pumps, and hydrovar X smart-motor packages. The linked e-1510X and e-SV records represent two different duties: high-flow circulation and higher-head multistage service. Neither model number is a complete selection. A buyer must provide the actual flow, system curve, fluid and glycol concentration, temperature range, suction conditions, elevation, materials, redundancy philosophy, electrical service, controls, and expected turndown. Pump efficiency at the design point is not enough; phased data halls can operate at low load for years, and a standby pump only protects service if valves, power, controls, and automatic changeover are tested. Xylem publishes a named NREL deployment involving Bell & Gossett pumps and warm-water heat recovery. It does not disclose fleet-wide failure rates or guarantee that the same arrangement fits a direct-to-chip technology loop. Current headquarters information is taken from Xylem's 2025 annual report. A complete bid should identify the selected impeller, motor, seal, coating, drive, sensors, and control firmware rather than cite only a pump family. Buyers should require certified curves with the project operating points marked, witness or documented factory testing where appropriate, minimum continuous flow, spare rotating assemblies or drive strategy, and efficiency evidence at the expected first-phase as well as ultimate load.
    • Field updateddescription: Siemens supplies data-center power, building automation, fire safety, security, and cooling controls through its Smart Infrastructure business. This record focuses on two current control layers. Desigo PXC4 is a programmable automation-station family for mechanical equipment and building systems. White Space Cooling Optimization uses dense temperature sensing and predictive software to adjust data-hall cooling to information-technology load. The two products solve different problems: PXC4 executes plant and equipment sequences, while White Space Cooling Optimization models airflow and supervises room cooling. Siemens publishes a named Novva Data Centers reference in Colorado Springs where Desigo PXC controllers were installed in a flat architecture across chillers, cooling towers, pumps, and fans. Siemens reports no cooling downtime for a year and a half and material energy savings, but those results include rewiring, reprogramming, and a broader shift in cooling strategy. Buyers should require a complete point list, sequence of operation, failure matrix, local fallback, sensor calibration plan, network architecture, access controls, software and cloud terms, patching responsibilities, trend retention, and witnessed tests for power loss, communication loss, bad sensors, and rapid compute-load changes. Public sources do not disclose Novva's IT capacity, installed controller count, project price, or independently audited savings. → Siemens supplies data-center power, building automation, fire safety, security, and cooling controls through its Smart Infrastructure business. This record focuses on two current control layers. Desigo PXC4 is a programmable automation-station family for mechanical equipment and building systems. White Space Cooling Optimization uses dense temperature sensing and predictive software to adjust data-hall cooling to information-technology load. The two products solve different problems: PXC4 executes plant and equipment sequences, while White Space Cooling Optimization models airflow and supervises room cooling. Siemens publishes a named Novva Data Centers reference in Colorado Springs where Desigo PXC controllers were installed in a flat architecture across chillers, cooling towers, pumps, and fans. Siemens reports no cooling downtime for a year and a half and material energy savings, but those results include rewiring, reprogramming, and a broader shift in cooling strategy. Buyers should require a complete point list, sequence of operation, failure matrix, local fallback, sensor calibration plan, network architecture, access controls, software and cloud terms, patching responsibilities, trend retention, and witnessed tests for power loss, communication loss, bad sensors, and rapid compute-load changes. Public sources do not disclose Novva's IT capacity, installed controller count, project price, or independently audited savings. Procurement should also separate the local safety sequence from supervisory optimization and state which functions must continue without a Siemens server, cloud service, or wide-area connection. The contract should include editable control logic, current backups, rollback procedures, license renewal terms, and ownership of integration work when chillers or room-cooling units come from other manufacturers.
    • Field updateddescription: Pall Corporation designs filtration, separation, and purification equipment across industrial and life-science markets. The two linked records are relevant to data-center facility water because Pall explicitly lists cooling water and pre-reverse-osmosis service, but Pall's public pages do not present them as qualified technology-cooling-loop filters. Ultipleat High Flow housings address large facility flows; Profile UP cartridges offer a broad range of particle-removal grades. A buyer should not transfer a generic cooling-water rating into a cold-plate loop without checking absolute efficiency or beta ratio, dirt-holding capacity, clean and terminal pressure drop, bypass behavior, element collapse pressure, seals, extractables, fluid compatibility, and the smallest protected channel. Installation design must define commissioning flush filtration, permanent full-flow or side-stream duty, isolation, differential-pressure alarms, safe element change, spare inventory, and disposal. Pall publishes detailed construction and flow information, but no cited data-center deployment, server-loop validation, installed price, or service-life result. Pall is a wholly owned Danaher subsidiary; product availability and exact configurations should be confirmed for the project region. → Pall Corporation designs filtration, separation, and purification equipment across industrial and life-science markets. The two linked records are relevant to data-center facility water because Pall explicitly lists cooling water and pre-reverse-osmosis service, but Pall's public pages do not present them as qualified technology-cooling-loop filters. Ultipleat High Flow housings address large facility flows; Profile UP cartridges offer a broad range of particle-removal grades. A buyer should not transfer a generic cooling-water rating into a cold-plate loop without checking absolute efficiency or beta ratio, dirt-holding capacity, clean and terminal pressure drop, bypass behavior, element collapse pressure, seals, extractables, fluid compatibility, and the smallest protected channel. Installation design must define commissioning flush filtration, permanent full-flow or side-stream duty, isolation, differential-pressure alarms, safe element change, spare inventory, and disposal. Pall publishes detailed construction and flow information, but no cited data-center deployment, server-loop validation, installed price, or service-life result. Pall is a wholly owned Danaher subsidiary; product availability and exact configurations should be confirmed for the project region. Procurement should qualify the housing, cartridge, seal, and fluid as one assembly and prohibit unreviewed replacement elements that merely fit dimensionally. It should distinguish temporary construction-debris removal from permanent polishing, define the permitted bypass state, require clean and loaded pressure-drop calculations, and specify how operators will avoid contaminating the clean side while opening a housing beside live cooling loads.
    • Field updateddescription: Kurita Water Industries supplies industrial water-treatment chemicals, equipment, monitoring, and service. Its cooling portfolio covers open towers, closed cooling and chilled-water circuits, make-up water, corrosion, scale, fouling, and microbiological control. The linked S.sensing MX platform monitors cooling-water parameters and can control dosing based on measured active product concentration. The linked Korrodex range covers corrosion inhibitors, hardness stabilizers, and antifreeze products for closed systems. These are product families rather than one universal formulation or bill of materials. A data-center buyer needs a site-specific program based on source water, loop type, metallurgy and polymers, oxygen ingress, temperature, heat flux, discharge rules, and every connected equipment warranty. Required submittals include chemical identity and concentration, compatibility, sample points, methods and frequency, calibration, alarm and action limits, authority to dose or drain, data access, cybersecurity, and emergency remediation. Kurita's public sources do not provide a named data-center deployment for these two records, a universal performance guarantee, or pricing. Generic industrial cooling experience should therefore be verified against the specific facility and technology loop. → Kurita Water Industries supplies industrial water-treatment chemicals, equipment, monitoring, and service. Its cooling portfolio covers open towers, closed cooling and chilled-water circuits, make-up water, corrosion, scale, fouling, and microbiological control. The linked S.sensing MX platform monitors cooling-water parameters and can control dosing based on measured active product concentration. The linked Korrodex range covers corrosion inhibitors, hardness stabilizers, and antifreeze products for closed systems. These are product families rather than one universal formulation or bill of materials. A data-center buyer needs a site-specific program based on source water, loop type, metallurgy and polymers, oxygen ingress, temperature, heat flux, discharge rules, and every connected equipment warranty. Required submittals include chemical identity and concentration, compatibility, sample points, methods and frequency, calibration, alarm and action limits, authority to dose or drain, data access, cybersecurity, and emergency remediation. Kurita's public sources do not provide a named data-center deployment for these two records, a universal performance guarantee, or pricing. Generic industrial cooling experience should therefore be verified against the specific facility and technology loop. Buyers should ask Kurita to map each proposed analyzer and chemical to a stated failure mode, test method, alert limit, corrective action, and equipment warranty. The service schedule should identify local laboratory capability, calibration standards, reagent and spare-sensor lead times, remote-monitoring retention, escalation coverage, and what happens when an analyzer is unavailable but cooling must continue.
    • Field updateddescription: Veolia Water Technologies provides water-treatment equipment, chemistry, controls, digital monitoring, and operating services. For data-center cooling, its public material covers source-water treatment, open recirculating cooling systems, reclamation, and reuse. The linked E.C.O.Film program uses non-phosphorus chemistry for scale and corrosion control, while the TrueSense Ready-Set-Go controller monitors pH, oxidation-reduction potential, conductivity, and, in supported programs, chemical levels. A published Illinois data-center case reports higher cooling-tower cycles and lower water use after adding pH control, acid feed, remote monitoring, and alarms. That result is supplier-reported, the operator is unnamed, and it does not isolate the controller from the full treatment program. Buyers should require a water balance, chemistry model, materials review, dosing and containment design, sample and calibration plan, alarm response, cyber and data terms, discharge assessment, and measurable acceptance criteria. They should also identify whether the contracting party is Veolia Water Technologies, Veolia Water Technologies & Solutions, or a regional affiliate. Public sources do not disclose the Illinois site's capacity, location beyond the state, contract value, or independent audit. → Veolia Water Technologies provides water-treatment equipment, chemistry, controls, digital monitoring, and operating services. For data-center cooling, its public material covers source-water treatment, open recirculating cooling systems, reclamation, and reuse. The linked E.C.O.Film program uses non-phosphorus chemistry for scale and corrosion control, while the TrueSense Ready-Set-Go controller monitors pH, oxidation-reduction potential, conductivity, and, in supported programs, chemical levels. A published Illinois data-center case reports higher cooling-tower cycles and lower water use after adding pH control, acid feed, remote monitoring, and alarms. That result is supplier-reported, the operator is unnamed, and it does not isolate the controller from the full treatment program. Buyers should require a water balance, chemistry model, materials review, dosing and containment design, sample and calibration plan, alarm response, cyber and data terms, discharge assessment, and measurable acceptance criteria. They should also identify whether the contracting party is Veolia Water Technologies, Veolia Water Technologies & Solutions, or a regional affiliate. Public sources do not disclose the Illinois site's capacity, location beyond the state, contract value, or independent audit. The proposal should state which regional Veolia entity supplies chemicals, owns controller configuration, interprets alarms, and attends an excursion. Procurement should require the modeled starting conditions, accepted water-quality range, baseline and verification period, data export, consumables, laboratory methods, acid-handling safeguards where relevant, and a remedy if treatment targets are missed without compromising cooling availability.
    • Field updateddescription: DC 15 is a synthetic-hydrocarbon dielectric fluid intended for single-phase immersion of electrical and electronic equipment. Castrol's product sheet reports typical density, specific heat, thermal conductivity, breakdown voltage, pour point, and fill-point particle cleanliness. These are fluid properties, not proof of server compatibility or cooling capacity. A lower-viscosity fluid can reduce pumping work, but the complete tank design, flow distribution, temperature rise, heat exchanger, and server geometry determine useful thermal performance. The published values are described as typical and may change; procurement should use a current regional product data sheet, safety data sheet, and batch certificate. Before approval, test every cable, label, connector, seal, elastomer, thermal-interface material, storage device, and server warranty for the planned exposure time and temperature. Define filtration, moisture and particle limits, sampling intervals, oxidation indicators, make-up rules, spill response, fire protection, lifting and draining practices, storage life, and end-of-life recovery. Public sources do not state a universal service life, tank capacity, approved-server list, or delivered price. → DC 15 is a synthetic-hydrocarbon dielectric fluid intended for single-phase immersion of electrical and electronic equipment. Castrol's product sheet reports typical density, specific heat, thermal conductivity, breakdown voltage, pour point, and fill-point particle cleanliness. These are fluid properties, not proof of server compatibility or cooling capacity. A lower-viscosity fluid can reduce pumping work, but the complete tank design, flow distribution, temperature rise, heat exchanger, and server geometry determine useful thermal performance. The published values are described as typical and may change; procurement should use a current regional product data sheet, safety data sheet, and batch certificate. Before approval, test every cable, label, connector, seal, elastomer, thermal-interface material, storage device, and server warranty for the planned exposure time and temperature. Define filtration, moisture and particle limits, sampling intervals, oxidation indicators, make-up rules, spill response, fire protection, lifting and draining practices, storage life, and end-of-life recovery. Public sources do not state a universal service life, tank capacity, approved-server list, or delivered price. Qualification should include an agreed retained sample from the delivered batch and baseline measurements using the same laboratory methods planned for operations. Buyers should ask why DC 15 is selected instead of DC 20 for the specific tank and temperature range, then require the tank supplier to state acceptable property drift, compatible replacement volume, and warranty treatment after contamination or an emergency fluid transfer.
    • Field updateddescription: DC 20 is Castrol's synthetic-hydrocarbon dielectric coolant for single-phase immersion. Its product sheet reports typical density of 797 kg/m³, kinematic viscosity of 5.1 mm²/s at 40°C, dielectric strength above 14 kV/mm, specific heat of 2.08 kJ/kg·K, and thermal conductivity of 0.135 W/m·K. Those values help model pumping and heat transfer, but they do not establish the capacity of an immersion tank or the lifetime of electronics. Castrol reports that Submer tested DC 20 and approved it across Submer equipment; that approval should be confirmed for the exact tank, region, warranty, and current fluid revision. Buyers should compare candidate fluids at the same temperatures, flow, heat load, contamination state, and safety boundary. Required due diligence includes the latest safety sheet, flash and fire controls, material and server compatibility, batch quality, moisture and particle limits, oxidation monitoring, filtration, storage, spill procedures, fluid top-up, recovery, and disposal. The cited sheet does not disclose price, a guaranteed service interval, or independent production-fleet results. → DC 20 is Castrol's synthetic-hydrocarbon dielectric coolant for single-phase immersion. Its product sheet reports typical density of 797 kg/m³, kinematic viscosity of 5.1 mm²/s at 40°C, dielectric strength above 14 kV/mm, specific heat of 2.08 kJ/kg·K, and thermal conductivity of 0.135 W/m·K. Those values help model pumping and heat transfer, but they do not establish the capacity of an immersion tank or the lifetime of electronics. Castrol reports that Submer tested DC 20 and approved it across Submer equipment; that approval should be confirmed for the exact tank, region, warranty, and current fluid revision. Buyers should compare candidate fluids at the same temperatures, flow, heat load, contamination state, and safety boundary. Required due diligence includes the latest safety sheet, flash and fire controls, material and server compatibility, batch quality, moisture and particle limits, oxidation monitoring, filtration, storage, spill procedures, fluid top-up, recovery, and disposal. The cited sheet does not disclose price, a guaranteed service interval, or independent production-fleet results. The Submer statement should be converted into project documentation naming the supported tank models, fluid revision, operating limits, and warranty owner. Acceptance should record delivered quantity, batch identity, cleanliness, moisture and electrical properties before servers enter the bath, with sealed baseline samples retained. Procurement should also define whether used fluid can be reclaimed, where it may be shipped, and who bears replacement and downtime costs after an out-of-limit result.
    • Field updateddescription: HTF-DE1 is Valvoline Global's dielectric heat-transfer fluid for high-performance-computing immersion applications. The strongest public evidence is an 18-month Iceotope validation using HPE DL380 servers, NVIDIA A40 graphics processors, and a 5.2 kW test load. Valvoline reports stable viscosity, dielectric performance above the Open Compute Project minimum, and no corrosion or material damage in forensic analysis. This is a useful compatibility test for the named setup, not a rack-scale capacity test or blanket approval for other hardware. The public product page does not provide the complete formulation, density, viscosity, thermal conductivity, flash point, pour point, moisture limit, particle limit, or service-life criteria. Those unknowns should be resolved with the current product and safety sheets and a project-specific qualification plan. Buyers should require written approval from the server and cooling-equipment suppliers, define fluid sampling and corrective limits, test all wetted and immersed materials, and plan filtration, storage, spill response, fire protection, make-up, recovery, and disposal. Availability is stated to vary by region. → HTF-DE1 is Valvoline Global's dielectric heat-transfer fluid for high-performance-computing immersion applications. The strongest public evidence is an 18-month Iceotope validation using HPE DL380 servers, NVIDIA A40 graphics processors, and a 5.2 kW test load. Valvoline reports stable viscosity, dielectric performance above the Open Compute Project minimum, and no corrosion or material damage in forensic analysis. This is a useful compatibility test for the named setup, not a rack-scale capacity test or blanket approval for other hardware. The public product page does not provide the complete formulation, density, viscosity, thermal conductivity, flash point, pour point, moisture limit, particle limit, or service-life criteria. Those unknowns should be resolved with the current product and safety sheets and a project-specific qualification plan. Buyers should require written approval from the server and cooling-equipment suppliers, define fluid sampling and corrective limits, test all wetted and immersed materials, and plan filtration, storage, spill response, fire protection, make-up, recovery, and disposal. Availability is stated to vary by region. The case-study summary does not disclose sample frequency, fluid temperature history, contamination events, server duty cycle, or the forensic acceptance criteria. A production qualification should therefore reproduce the intended heat load, materials, maintenance exposure, and maximum temperature, then establish baseline and alarm values using named test methods. The contract should state whether Valvoline or Iceotope interprets samples and who decides when continued operation, filtration, partial replacement, or shutdown is required.
    • Field updateddescription: PG25 Advanced is listed in Valvoline Global's high-performance-computing portfolio for direct-to-chip and heat-exchange cooling. It is a different duty from the company's dielectric immersion fluid: it circulates through a closed liquid loop and must be compatible with cold plates, manifolds, pumps, filters, couplings, heat exchangers, seals, and every metal in the circuit. The cited public pages do not state the exact glycol concentration despite the product name, inhibitor chemistry, water specification, freeze protection, density, viscosity, heat capacity, conductivity, pH range, corrosion limits, or approved materials. Those items are therefore explicitly unknown in this draft and must come from the current regional technical data sheet and equipment-vendor approvals. Buyers should compare fluids at the same concentration and operating temperature because glycol content changes heat capacity, viscosity, pressure loss, pump power, and usable cooling capacity. Procurement also needs fill cleanliness, sample methods, alert and action limits, make-up rules, mixed-fluid restrictions, leak response, storage life, condition-monitoring service, and disposal. Valvoline states that regional availability can vary. → PG25 Advanced is listed in Valvoline Global's high-performance-computing portfolio for direct-to-chip and heat-exchange cooling. It is a different duty from the company's dielectric immersion fluid: it circulates through a closed liquid loop and must be compatible with cold plates, manifolds, pumps, filters, couplings, heat exchangers, seals, and every metal in the circuit. The cited public pages do not state the exact glycol concentration despite the product name, inhibitor chemistry, water specification, freeze protection, density, viscosity, heat capacity, conductivity, pH range, corrosion limits, or approved materials. Those items are therefore explicitly unknown in this draft and must come from the current regional technical data sheet and equipment-vendor approvals. Buyers should compare fluids at the same concentration and operating temperature because glycol content changes heat capacity, viscosity, pressure loss, pump power, and usable cooling capacity. Procurement also needs fill cleanliness, sample methods, alert and action limits, make-up rules, mixed-fluid restrictions, leak response, storage life, condition-monitoring service, and disposal. Valvoline states that regional availability can vary. The fluid submittal should include properties across the full operating-temperature range, not one room-temperature value, so pump and heat-exchanger selections can use the intended concentration. Buyers should require a written list of approved metals, elastomers, hoses, couplings, cold plates, and treatment additions; define whether deionized or another fill water is required; and prohibit field dilution or mixing unless the responsible equipment vendors approve the procedure.
    • Field updateddescription: 3D TRASAR Cooling Water Technology is Ecolab's Nalco Water program for managing scale, corrosion, microbiological risk, water use, and equipment performance in cooling-water systems. It combines site-selected chemistry with controllers, sensors, analytics, alarms, and service rather than representing one fixed appliance or chemical. That distinction matters in procurement: the deliverable should state the exact chemistry, instruments, sample points, data and alarm service, field visits, performance limits, and operator responsibilities. Ecolab publishes a data-center case in which a 3D TRASAR-based program increased cooling-tower cycles from 1.8 to 3.3 and reported annual water and energy savings. The operator is unnamed and the result includes acid feed, inhibitor chemistry, PORTA-FEED delivery, and remote service, so it is not an isolated controller benchmark. Buyers should validate the treatment model against source-water variability, metallurgy, temperatures, discharge limits, tower hygiene, and chiller warranties. The public offering page does not provide universal sensor accuracy, calibration frequency, chemical dose, subscription term, cybersecurity architecture, or guaranteed savings. → 3D TRASAR Cooling Water Technology is Ecolab's Nalco Water program for managing scale, corrosion, microbiological risk, water use, and equipment performance in cooling-water systems. It combines site-selected chemistry with controllers, sensors, analytics, alarms, and service rather than representing one fixed appliance or chemical. That distinction matters in procurement: the deliverable should state the exact chemistry, instruments, sample points, data and alarm service, field visits, performance limits, and operator responsibilities. Ecolab publishes a data-center case in which a 3D TRASAR-based program increased cooling-tower cycles from 1.8 to 3.3 and reported annual water and energy savings. The operator is unnamed and the result includes acid feed, inhibitor chemistry, PORTA-FEED delivery, and remote service, so it is not an isolated controller benchmark. Buyers should validate the treatment model against source-water variability, metallurgy, temperatures, discharge limits, tower hygiene, and chiller warranties. The public offering page does not provide universal sensor accuracy, calibration frequency, chemical dose, subscription term, cybersecurity architecture, or guaranteed savings. Acceptance criteria should distinguish controller availability from treatment performance and define allowable corrosion, deposition, microbiological, conductivity, and water-use outcomes with stated test methods. The contract should identify which alarms Ecolab monitors continuously, the response time and escalation path, who may change control limits, how local staff operate during a service outage, and whether raw sensor and laboratory data remain exportable after the service term ends.
    • Field updateddescription: 3D TRASAR for Adiabatic Cooling targets the water sprayed or distributed across adiabatic heat-rejection equipment. Ecolab says the program includes controllers, flow meters, and a maintenance-free conductivity probe, with individual monitoring of adiabatic units, centralized chemical dosing, blowdown control, reporting, digital action logs, and 24/7 alarm management. That scope can help operators see whether media are wetting correctly and whether water quality is drifting before deposits reduce cooling capacity. It does not remove the need for a complete water design. Buyers should define source and make-up water, maximum daily use, concentration limits, treatment chemistry, nozzles and media compatibility, freeze and drain behavior, legionella controls where applicable, sample and calibration procedures, alarms, loss-of-network behavior, local manual operation, data ownership, and who responds at the site. The public page does not publish sensor ranges and accuracy, controller protocols, chemical identities, dosing rates, cybersecurity details, subscription terms, or performance at a named installation. Those unknowns require a project submittal and acceptance test under local water and weather conditions. → 3D TRASAR for Adiabatic Cooling targets the water sprayed or distributed across adiabatic heat-rejection equipment. Ecolab says the program includes controllers, flow meters, and a maintenance-free conductivity probe, with individual monitoring of adiabatic units, centralized chemical dosing, blowdown control, reporting, digital action logs, and 24/7 alarm management. That scope can help operators see whether media are wetting correctly and whether water quality is drifting before deposits reduce cooling capacity. It does not remove the need for a complete water design. Buyers should define source and make-up water, maximum daily use, concentration limits, treatment chemistry, nozzles and media compatibility, freeze and drain behavior, legionella controls where applicable, sample and calibration procedures, alarms, loss-of-network behavior, local manual operation, data ownership, and who responds at the site. The public page does not publish sensor ranges and accuracy, controller protocols, chemical identities, dosing rates, cybersecurity details, subscription terms, or performance at a named installation. Those unknowns require a project submittal and acceptance test under local water and weather conditions. Qualification should include maximum-day operation, low-flow periods, drain and restart, failed conductivity or flow signals, interrupted chemical feed, and loss of remote communication. Procurement should require the adiabatic-equipment manufacturer to approve the chemistry for media, nozzles, basins, coils, and coatings, while Ecolab should state sampling locations, calibration checks, alarm ownership, consumables, and the records needed to demonstrate that water quality remained within warranty limits.
    • Field updateddescription: The Bell & Gossett e-1510X combines the e-1510 base-mounted end-suction pump with Xylem's hydrovar X smart motor, variable-speed drive, and controls. Xylem's data-center brochure places the family in chilled-water service and lists family performance up to 4,000 gallons per minute and 520 feet of head. Those are range limits, not one operating point or a promise for every impeller, speed, fluid, and motor. The selected pump must be evaluated on a certified curve at the project's actual water or glycol concentration and temperature, with the complete system curve, net positive suction head margin, minimum flow, materials, seal plan, and expected turndown. Integrated controls reduce separate panels but create firmware, configuration, network, and spare-part dependencies. Buyers should confirm power and drive redundancy, multi-pump sequence, local fallback, Modbus point list, cyber ownership, harmonic treatment, motor and drive replacement, alignment, vibration, sound, and service access. The cited sources do not provide a data-center-specific selected duty, annual efficiency, failure rate, or installed cost. → The Bell & Gossett e-1510X combines the e-1510 base-mounted end-suction pump with Xylem's hydrovar X smart motor, variable-speed drive, and controls. Xylem's data-center brochure places the family in chilled-water service and lists family performance up to 4,000 gallons per minute and 520 feet of head. Those are range limits, not one operating point or a promise for every impeller, speed, fluid, and motor. The selected pump must be evaluated on a certified curve at the project's actual water or glycol concentration and temperature, with the complete system curve, net positive suction head margin, minimum flow, materials, seal plan, and expected turndown. Integrated controls reduce separate panels but create firmware, configuration, network, and spare-part dependencies. Buyers should confirm power and drive redundancy, multi-pump sequence, local fallback, Modbus point list, cyber ownership, harmonic treatment, motor and drive replacement, alignment, vibration, sound, and service access. The cited sources do not provide a data-center-specific selected duty, annual efficiency, failure rate, or installed cost. The submittal should mark normal, minimum, maximum, and degraded operating points on the selected curve and show motor load and efficiency at each point. Procurement should require the exact construction and seal materials, allowable starts, minimum speed, vibration and sound criteria, replacement-drive compatibility, configuration backups, and a witnessed or certified performance test appropriate to the duty. Redundancy testing must include valves, sensors, controls, and electrical feeds rather than only starting a spare pump.
    • Field updateddescription: The e-SV is a vertical multistage pump family used alone and in packaged booster systems. Xylem's data-center brochure lists delivery up to 725 gallons per minute and head up to 1,200 feet, with options for IE5 motors. The separate TECHNOFORCE e-MTV literature shows two- or three-pump packages using e-SV pumps for clean-water pressure boosting, with variable-frequency-drive control and service isolation. These figures span a family and should not be combined into one duty point. For data-center cooling or make-up service, buyers must select against the actual flow, head, fluid, temperature, gas and solids content, suction conditions, materials, seal, minimum flow, and part-load profile. A high-head multistage pump may be suitable for pressure boosting but inefficient or excessive for a low-head technology loop. Packaged redundancy also depends on common manifolds, controls, power, and valves. Public sources do not state qualification for a particular cold-plate loop, glycol concentration, selected pump efficiency, acoustics, or data-center field reliability. → The e-SV is a vertical multistage pump family used alone and in packaged booster systems. Xylem's data-center brochure lists delivery up to 725 gallons per minute and head up to 1,200 feet, with options for IE5 motors. The separate TECHNOFORCE e-MTV literature shows two- or three-pump packages using e-SV pumps for clean-water pressure boosting, with variable-frequency-drive control and service isolation. These figures span a family and should not be combined into one duty point. For data-center cooling or make-up service, buyers must select against the actual flow, head, fluid, temperature, gas and solids content, suction conditions, materials, seal, minimum flow, and part-load profile. A high-head multistage pump may be suitable for pressure boosting but inefficient or excessive for a low-head technology loop. Packaged redundancy also depends on common manifolds, controls, power, and valves. Public sources do not state qualification for a particular cold-plate loop, glycol concentration, selected pump efficiency, acoustics, or data-center field reliability. Buyers should first state whether the duty is clean-water pressure boosting, make-up water, or closed-loop circulation because each has different control and material requirements. The selected schedule should include stage count, impeller and casing materials, seal, motor, drive, minimum inlet pressure, net positive suction head, minimum flow, and curves corrected for the actual fluid. Packaged systems also need header isolation, pressure-sensor redundancy, local fallback, and tested pump-changeover logic.
    • Field updateddescription: Desigo PXC4.E16 is a compact automation station for HVAC and building-control systems. Siemens documents 12 universal inputs and outputs plus four relay outputs, BACnet/IP and BACnet Secure Connect communication, an embedded web interface, and expansion through TX-I/O modules. The E16 variant also supports project-dependent integration of Modbus and KNX PL-Link devices. Siemens' Novva case identifies Desigo PXC controllers as the control layer for four chillers, two chiller plants, cooling towers, pumps, and fans at a live data center. The case does not identify the exact PXC model, controller quantity, firmware, input/output allocation, or network design, so it supports the product family rather than proving this specific E16 configuration. Buyers should approve the exact stock number, firmware, point count, expansion modules, power supply, environmental limits, BACnet objects, certificates, alarming, schedules, trend storage, local sequence, user roles, backups, cyber hardening, patching, and service tools. Factory and site testing should simulate controller, sensor, network, and power failures rather than relying on protocol compatibility alone. → Desigo PXC4.E16 is a compact automation station for HVAC and building-control systems. Siemens documents 12 universal inputs and outputs plus four relay outputs, BACnet/IP and BACnet Secure Connect communication, an embedded web interface, and expansion through TX-I/O modules. The E16 variant also supports project-dependent integration of Modbus and KNX PL-Link devices. Siemens' Novva case identifies Desigo PXC controllers as the control layer for four chillers, two chiller plants, cooling towers, pumps, and fans at a live data center. The case does not identify the exact PXC model, controller quantity, firmware, input/output allocation, or network design, so it supports the product family rather than proving this specific E16 configuration. Buyers should approve the exact stock number, firmware, point count, expansion modules, power supply, environmental limits, BACnet objects, certificates, alarming, schedules, trend storage, local sequence, user roles, backups, cyber hardening, patching, and service tools. Factory and site testing should simulate controller, sensor, network, and power failures rather than relying on protocol compatibility alone. The design should reserve documented input and output capacity for future phases without making one controller an unnecessarily large failure domain. Procurement should require editable application code, naming standards, source and compiled backups, license and engineering-tool access, supported firmware lifecycle, secure-connect certificate ownership, time synchronization, and a rollback method. Every integrated chiller, pump, tower, and fan should have an approved point map and defined autonomous behavior if the PXC or supervisory network is unavailable.
    • Field updateddescription: White Space Cooling Optimization, or WSCO, is Siemens' data-hall cooling-control platform based on Vigilent technology. A dense sensor network measures temperatures at information-technology equipment air inlets. An artificial-intelligence engine models how cooling units affect those sensors, then adjusts airflow and cooling output to reduce hotspots and overcooling. Siemens says the platform can run on virtual or dedicated on-site hardware and can integrate with building systems. This is supervisory optimization, not a substitute for local equipment safeties or a complete plant sequence. Its value depends on sensor placement, wireless reliability, cooling-unit interfaces, model training, guardrails, and the thermal service-level agreement. Buyers should define sensor count and accuracy, batteries, network ownership, edge or cloud architecture, supported protocols and commands, manual override, fail-safe behavior, change control, alarm ownership, data retention, cyber review, software licensing, support response, and validation after rack moves. Siemens publishes named deployments, but the product flyer does not provide universal savings, a fixed bill of materials, control-loop response time, or performance for liquid-cooled racks with low residual air load. → White Space Cooling Optimization, or WSCO, is Siemens' data-hall cooling-control platform based on Vigilent technology. A dense sensor network measures temperatures at information-technology equipment air inlets. An artificial-intelligence engine models how cooling units affect those sensors, then adjusts airflow and cooling output to reduce hotspots and overcooling. Siemens says the platform can run on virtual or dedicated on-site hardware and can integrate with building systems. This is supervisory optimization, not a substitute for local equipment safeties or a complete plant sequence. Its value depends on sensor placement, wireless reliability, cooling-unit interfaces, model training, guardrails, and the thermal service-level agreement. Buyers should define sensor count and accuracy, batteries, network ownership, edge or cloud architecture, supported protocols and commands, manual override, fail-safe behavior, change control, alarm ownership, data retention, cyber review, software licensing, support response, and validation after rack moves. Siemens publishes named deployments, but the product flyer does not provide universal savings, a fixed bill of materials, control-loop response time, or performance for liquid-cooled racks with low residual air load. A pilot should preserve existing thermal alarms and local unit controls while testing sensor coverage, command limits, recovery after communication loss, and hotspot response under representative load changes. Acceptance should measure inlet-temperature compliance and cooling power against a documented baseline, not only a modeled saving. The contract should also state how the model is retrained after rack moves, containment changes, or direct-to-chip adoption reduces the room-air load.
    • Field updateddescription: Pall's Ultipleat High Flow housing accepts large-format filter elements for duties including cooling water and pre-reverse-osmosis filtration. Pall lists housings up to 1,500 gallons per minute, ASME Section VIII Division 1 design, and published pressure and temperature limits for the cited configuration. These are housing limits, not particle-removal performance; the selected element determines efficiency, micron rating, dirt capacity, and much of the pressure drop. A facility-water designer should size the housing for clean and terminal differential pressure at the actual fluid viscosity and flow, including a fouled-element case. For a technology coolant loop, buyers also need evidence that the element, support, adhesives, seals, and housing materials meet fluid cleanliness and extractables requirements and do not shed particles. The installation must define full-flow or side-stream duty, bypass policy, isolation, venting and draining, differential-pressure instruments, safe element change, spare inventory, and disposal. Pall does not cite a data-center deployment or cold-plate-loop qualification on the public product page, so that application remains unproven in this draft. → Pall's Ultipleat High Flow housing accepts large-format filter elements for duties including cooling water and pre-reverse-osmosis filtration. Pall lists housings up to 1,500 gallons per minute, ASME Section VIII Division 1 design, and published pressure and temperature limits for the cited configuration. These are housing limits, not particle-removal performance; the selected element determines efficiency, micron rating, dirt capacity, and much of the pressure drop. A facility-water designer should size the housing for clean and terminal differential pressure at the actual fluid viscosity and flow, including a fouled-element case. For a technology coolant loop, buyers also need evidence that the element, support, adhesives, seals, and housing materials meet fluid cleanliness and extractables requirements and do not shed particles. The installation must define full-flow or side-stream duty, bypass policy, isolation, venting and draining, differential-pressure instruments, safe element change, spare inventory, and disposal. Pall does not cite a data-center deployment or cold-plate-loop qualification on the public product page, so that application remains unproven in this draft. The selected housing schedule should state element quantity and length, nozzle size and orientation, design and operating pressure, corrosion allowance, closure, vent, drain, lifting access, seal material, and code documentation. Procurement should require pressure-drop calculations for clean and terminal conditions at the actual flow and viscosity, plus a safe isolation and change procedure. If bypass is provided, its automatic or manual behavior and the resulting risk to protected cold plates must be explicitly approved.
    • Field updateddescription: Profile UP is a pleated depth-filter cartridge using Pall's Ultipleat geometry. Pall lists it for resin traps, pre-reverse-osmosis treatment, and cooling water, with grades spanning submicron to tens-of-microns removal and published clean-water pressure-drop data. The choice of grade is consequential: a finer element can protect small passages but increases clean pressure drop and may load quickly during commissioning, while a coarse element may pass particles that block cold plates or damage seals. Buyers should specify removal efficiency, not a micron label alone, and obtain the beta ratio or equivalent test basis, dirt-holding capacity, terminal pressure drop, collapse behavior, materials, seals, extractables, and compatibility with water, glycol, inhibitors, and cleaning chemicals. Flow data should be corrected for actual viscosity and cartridge length. The filter train also needs isolation, differential-pressure alarms, clean-side handling, commissioning-flush strategy, spares, and disposal. Pall's public page does not identify a data-center technology loop, a recommended grade for cold plates, or a field service interval. → Profile UP is a pleated depth-filter cartridge using Pall's Ultipleat geometry. Pall lists it for resin traps, pre-reverse-osmosis treatment, and cooling water, with grades spanning submicron to tens-of-microns removal and published clean-water pressure-drop data. The choice of grade is consequential: a finer element can protect small passages but increases clean pressure drop and may load quickly during commissioning, while a coarse element may pass particles that block cold plates or damage seals. Buyers should specify removal efficiency, not a micron label alone, and obtain the beta ratio or equivalent test basis, dirt-holding capacity, terminal pressure drop, collapse behavior, materials, seals, extractables, and compatibility with water, glycol, inhibitors, and cleaning chemicals. Flow data should be corrected for actual viscosity and cartridge length. The filter train also needs isolation, differential-pressure alarms, clean-side handling, commissioning-flush strategy, spares, and disposal. Pall's public page does not identify a data-center technology loop, a recommended grade for cold plates, or a field service interval. Qualification should match the cartridge grade to the equipment vendor's particle limit and verify the published efficiency test basis rather than treating the grade name as an absolute cutoff. Buyers should request initial cleanliness results, expected construction-debris loading, element area and dirt capacity, differential-pressure alarm and replacement limits, collapse margin, lot traceability, and compatible seals. A commissioning element may need a different grade and replacement schedule from the permanent operating element.
    • Field updateddescription: S.sensing MX combines multiple water-quality sensors and analyzers with a central cooling-tower controller. Kurita lists modules for pH, conductivity, oxidation-reduction potential, active treatment-product concentration, and free or total chlorine, along with alarms, fail-safe behavior, communication, and future expansion. A modular platform can reduce duplicated panels, but the project value depends on the exact analyzers, sample conditioning, calibration, and control sequence. Buyers should specify measurement range, accuracy, repeatability, response time, calibration standards, reagent and consumable needs, sample flow, fouling protection, maintenance access, signal and protocol list, local display, alarm priorities, dosing interlocks, loss-of-sample and loss-of-network behavior, data retention, cybersecurity, and manual fallback. Control based on measured active ingredient may be more informative than pump runtime, but it still requires a representative sample and validated analytical method. The public page does not identify a data-center deployment, enclosure rating, protocol list, cyber certification, calibration interval, or installed price. Suitability for a given cooling tower therefore requires a complete submittal and water-treatment program. → S.sensing MX combines multiple water-quality sensors and analyzers with a central cooling-tower controller. Kurita lists modules for pH, conductivity, oxidation-reduction potential, active treatment-product concentration, and free or total chlorine, along with alarms, fail-safe behavior, communication, and future expansion. A modular platform can reduce duplicated panels, but the project value depends on the exact analyzers, sample conditioning, calibration, and control sequence. Buyers should specify measurement range, accuracy, repeatability, response time, calibration standards, reagent and consumable needs, sample flow, fouling protection, maintenance access, signal and protocol list, local display, alarm priorities, dosing interlocks, loss-of-sample and loss-of-network behavior, data retention, cybersecurity, and manual fallback. Control based on measured active ingredient may be more informative than pump runtime, but it still requires a representative sample and validated analytical method. The public page does not identify a data-center deployment, enclosure rating, protocol list, cyber certification, calibration interval, or installed price. Suitability for a given cooling tower therefore requires a complete submittal and water-treatment program. Procurement should list the exact modules and measurement methods because the platform name alone does not establish what is being sensed. Factory and site tests should cover stale or implausible readings, lost sample flow, exhausted reagents, failed communications, dosing-pump proof, alarm delivery, and safe manual operation. Buyers should also require calibration records, spare sensors and reagents, local service response, raw-data export, and a defined owner for changing limits after source-water conditions change.
    • Field updateddescription: Korrodex is Kurita's treatment range for closed systems rather than a single chemical formulation. Kurita describes products for corrosion inhibition across carbon steel, stainless steel, yellow metals, and aluminum; dispersant-based hardness stabilization across different water qualities; and antifreeze treatment for low-temperature circuits. This range may be relevant to facility chilled water and some direct-to-chip secondary loops, but only if every connected equipment supplier approves the selected chemistry and concentration. A buyer should not specify the family name alone. The submittal needs the exact product, composition and dose, fill-water quality, pH and conductivity range, metal and polymer compatibility, glycol or antifreeze concentration, corrosion and hardness limits, sample methods, treatment frequency, alert and action levels, make-up restrictions, cleaning and passivation procedure, spill and disposal requirements, and warranty responsibilities. Closed loops are not maintenance-free: oxygen ingress, mixed metals, leaks, contamination, and wrong make-up water can still drive corrosion and deposits. Public sources do not provide a data-center reference, universal dose, thermophysical properties, or compatibility with a named cold plate. → Korrodex is Kurita's treatment range for closed systems rather than a single chemical formulation. Kurita describes products for corrosion inhibition across carbon steel, stainless steel, yellow metals, and aluminum; dispersant-based hardness stabilization across different water qualities; and antifreeze treatment for low-temperature circuits. This range may be relevant to facility chilled water and some direct-to-chip secondary loops, but only if every connected equipment supplier approves the selected chemistry and concentration. A buyer should not specify the family name alone. The submittal needs the exact product, composition and dose, fill-water quality, pH and conductivity range, metal and polymer compatibility, glycol or antifreeze concentration, corrosion and hardness limits, sample methods, treatment frequency, alert and action levels, make-up restrictions, cleaning and passivation procedure, spill and disposal requirements, and warranty responsibilities. Closed loops are not maintenance-free: oxygen ingress, mixed metals, leaks, contamination, and wrong make-up water can still drive corrosion and deposits. Public sources do not provide a data-center reference, universal dose, thermophysical properties, or compatibility with a named cold plate. The project water specification should reconcile Kurita's limits with every heat exchanger, pump, valve, coupling, hose, manifold, and cold-plate requirement before chemical purchase. Commissioning should document cleaning, flushing, passivation, fill source, concentration, dissolved gases, and baseline corrosion indicators. The operating plan needs sealed sampling, approved make-up fluid, leak investigation, trend limits, and named actions for additive depletion or contamination rather than routine dosing without diagnosis.
    • Field updateddescription: E.C.O.Film is Veolia's Engineered Carboxylate Oxide treatment for open recirculating cooling-water systems. Veolia states that the chemistry is designed to control deposition and corrosion without phosphorus or United States Environmental Protection Agency priority-pollutant materials. The program can be combined with saturation modeling, deposition monitoring, corrosion monitoring, and TrueSense controls. This is a treatment program, not a drop-in guarantee of higher cycles of concentration. Source-water chemistry, tower materials, heat-exchanger surface temperature, biological control, discharge limits, and operator response determine the result. Buyers should require Veolia's site model, exact chemistry and dose, compatibility with galvanized steel, copper alloys, aluminum, elastomers, and other wetted materials, corrosion and deposition acceptance limits, microbiological program, sample methods, online instruments, alarm response, chemical storage and containment, discharge review, and contingency for out-of-limit water. The public page does not disclose the formulation, universal dose, sensor package, data-center case for E.C.O.Film specifically, or guaranteed water savings. → E.C.O.Film is Veolia's Engineered Carboxylate Oxide treatment for open recirculating cooling-water systems. Veolia states that the chemistry is designed to control deposition and corrosion without phosphorus or United States Environmental Protection Agency priority-pollutant materials. The program can be combined with saturation modeling, deposition monitoring, corrosion monitoring, and TrueSense controls. This is a treatment program, not a drop-in guarantee of higher cycles of concentration. Source-water chemistry, tower materials, heat-exchanger surface temperature, biological control, discharge limits, and operator response determine the result. Buyers should require Veolia's site model, exact chemistry and dose, compatibility with galvanized steel, copper alloys, aluminum, elastomers, and other wetted materials, corrosion and deposition acceptance limits, microbiological program, sample methods, online instruments, alarm response, chemical storage and containment, discharge review, and contingency for out-of-limit water. The public page does not disclose the formulation, universal dose, sensor package, data-center case for E.C.O.Film specifically, or guaranteed water savings. A proposal should show the modeled scaling and corrosion envelope across expected source-water variation, cycles, pH, temperature, and heat flux, then state assumptions that would invalidate it. Procurement should define the companion biocide program, monitoring equipment, laboratory verification, chemical-feed proof, operator rounds, discharge obligations, and response to an excursion. Any water or acid savings should be measured against an agreed baseline and normalized for cooling load and weather before acceptance.
    • Field updateddescription: TrueSense Ready-Set-Go, or RSG, is Veolia's cooling-water controller for pH, oxidation-reduction potential, conductivity, and supported real-time chemical measurements. Veolia's Illinois data-center case says an RSG controller monitored pH and controlled sulfuric-acid feed, with remote monitoring and alarms, as part of a treatment change that doubled cooling-tower cycles and reduced water demand. The source does not disclose the site, controller model configuration, sensors, setpoints, raw trends, or whether the savings were independently audited. Acid feed is safety-critical and requires secondary containment, compatible pumps and tubing, interlocks, ventilation, personal protective equipment, and procedures for sensor or pump failure. Buyers should approve measurement ranges and accuracy, calibration and replacement intervals, sample conditioning, outputs, communication protocols, local sequence, fail positions, alarm routing, network-loss behavior, data retention, access control, remote support, chemical-feed proof, and manual operation. The public product material does not provide a complete hardware specification, cybersecurity certification, or universal savings guarantee. → TrueSense Ready-Set-Go, or RSG, is Veolia's cooling-water controller for pH, oxidation-reduction potential, conductivity, and supported real-time chemical measurements. Veolia's Illinois data-center case says an RSG controller monitored pH and controlled sulfuric-acid feed, with remote monitoring and alarms, as part of a treatment change that doubled cooling-tower cycles and reduced water demand. The source does not disclose the site, controller model configuration, sensors, setpoints, raw trends, or whether the savings were independently audited. Acid feed is safety-critical and requires secondary containment, compatible pumps and tubing, interlocks, ventilation, personal protective equipment, and procedures for sensor or pump failure. Buyers should approve measurement ranges and accuracy, calibration and replacement intervals, sample conditioning, outputs, communication protocols, local sequence, fail positions, alarm routing, network-loss behavior, data retention, access control, remote support, chemical-feed proof, and manual operation. The public product material does not provide a complete hardware specification, cybersecurity certification, or universal savings guarantee. The controller submittal should distinguish measured values from calculated or manually entered data and identify which outputs can directly start chemical feed or blowdown. Acceptance testing should simulate fouled and failed probes, lost sample flow, stuck dosing equipment, empty chemical storage, network loss, alarm delay, and power restoration. Procurement should include calibration standards, spare probes, configuration backups, user-role control, raw trend export, local fallback, and the service response attached to remote alarm monitoring.
    • Field updateddescription: Status: pilot. Castrol announced on 20 July 2023 that immersion systems were installed and fully functional at its Pangbourne headquarters. The research setup combines Castrol fluids, Hypertec immersion-cooled server expertise, and Submer SmartPod and MicroPod tanks. The partners intended to test fluids, servers, and integrated cooling behavior. This is a real, named physical deployment at Castrol's site, but it is a supplier development laboratory rather than a production data center. The announcement does not disclose IT load, tank count, server models, fluid formulation used in each test, water temperatures, heat-rejection equipment, test protocol, measured efficiency, uptime, or customer acceptance results. It therefore supports interoperability research, not a capacity or savings claim. A buyer evaluating the reference should ask for the exact bill of materials, test duration and duty cycle, material inspections, fluid analyses, failure tests, and changes made after the program. Evidence that would strengthen the record includes published long-duration data, an operator acceptance report, or a commercial site using the qualified combination. → Status: pilot. Castrol announced on 20 July 2023 that immersion systems were installed and fully functional at its Pangbourne headquarters. The research setup combines Castrol fluids, Hypertec immersion-cooled server expertise, and Submer SmartPod and MicroPod tanks. The partners intended to test fluids, servers, and integrated cooling behavior. This is a real, named physical deployment at Castrol's site, but it is a supplier development laboratory rather than a production data center. The announcement does not disclose IT load, tank count, server models, fluid formulation used in each test, water temperatures, heat-rejection equipment, test protocol, measured efficiency, uptime, or customer acceptance results. It therefore supports interoperability research, not a capacity or savings claim. A buyer evaluating the reference should ask for the exact bill of materials, test duration and duty cycle, material inspections, fluid analyses, failure tests, and changes made after the program. Evidence that would strengthen the record includes published long-duration data, an operator acceptance report, or a commercial site using the qualified combination. The announcement also does not say which Castrol fluid was in each tank, whether tests used production batches, or whether Submer's later DC 20 approval came from this installation. Those links should not be inferred. Due diligence should request baseline and end-of-test fluid properties, server and component inventory, immersed-material exposure time, thermal load profile, pump and heat-exchanger data, maintenance interventions, spills or contamination events, and forensic inspection results. A commercial buyer should separately verify fire strategy, occupational procedures, fluid inventory, lifting and draining, spare capacity, and server-warranty ownership. Because the public source gives no later operating update, continued use and the present configuration are unknown; a current site reference or dated test report is needed before treating Pangbourne as an active qualification facility.
    • Field updateddescription: Status: pilot. Valvoline's December 2025 case study documents an 18-month in-application test of HTF-DE1 fluid in an Iceotope MicroDC system with HPE DL380 servers and NVIDIA A40 graphics processors. The reported load was 5.2 kW. Valvoline says viscosity remained stable, dielectric performance stayed above the Open Compute Project minimum, and forensic inspection found no corrosion or material damage. The named hardware, duration, and post-test inspection make this stronger than a generic compatibility assertion. Important limits remain: the test location is not disclosed, 5.2 kW is not representative of a full high-density rack, raw measurements and uncertainty are not published, and the report comes from the fluid supplier. It does not establish compatibility with other server generations, plastics, cables, storage devices, or operating temperatures. Buyers should request the full protocol, starting and ending fluid analyses, sample history, hardware inspection criteria, excursions, maintenance events, and written Iceotope approval for the exact production system. Independent replication or a named commercial operator would further strengthen the evidence. → Status: pilot. Valvoline's December 2025 case study documents an 18-month in-application test of HTF-DE1 fluid in an Iceotope MicroDC system with HPE DL380 servers and NVIDIA A40 graphics processors. The reported load was 5.2 kW. Valvoline says viscosity remained stable, dielectric performance stayed above the Open Compute Project minimum, and forensic inspection found no corrosion or material damage. The named hardware, duration, and post-test inspection make this stronger than a generic compatibility assertion. Important limits remain: the test location is not disclosed, 5.2 kW is not representative of a full high-density rack, raw measurements and uncertainty are not published, and the report comes from the fluid supplier. It does not establish compatibility with other server generations, plastics, cables, storage devices, or operating temperatures. Buyers should request the full protocol, starting and ending fluid analyses, sample history, hardware inspection criteria, excursions, maintenance events, and written Iceotope approval for the exact production system. Independent replication or a named commercial operator would further strengthen the evidence. The source does not state whether the 5.2 kW value is average, maximum, or nameplate load, how continuously the hardware ran, what inlet and outlet temperatures applied, or whether fluid was filtered or topped up. It also does not publish individual dielectric and viscosity readings, laboratory methods, uncertainty, or photographs and measurements from the forensic examination. Procurement teams should ask whether the exact HPE and NVIDIA configurations retained their warranties and whether Iceotope's approval applies to all MicroDC revisions. A production pilot should reproduce the intended materials and temperature range, include representative service events, preserve sealed baseline samples, define pass and fail limits before testing, and assign authority for continued operation after any out-of-limit sample.
    • Field updateddescription: Status: operating. Xylem's case study says more than 55 Bell & Gossett products, including e-1510, Series 90, Series 80, and Series 60 pumps, were selected for the National Renewable Energy Laboratory's Energy Systems Integration Facility in Golden, Colorado. The data center uses component-level warm-water cooling for supercomputing, transfers heat through an energy-recovery loop, and reuses available heat in laboratories and offices. NREL confirms that the water-based system was installed in 2012 and describes the operating hierarchy for heat reuse, dry rejection, and cooling towers. This record establishes named equipment families and an operating facility, but it does not disclose which pump serves each loop, current pump quantities by model, selected flow and head, annual pump energy, maintenance history, or attribution of whole-site efficiency to Xylem equipment. The computing platform has also changed over time. Buyers should use the reference to examine controls, low-load operation, redundancy, water chemistry, heat-reuse availability, and maintenance, not to copy a pump schedule. Current drawings, trend data, and service records would be needed for a like-for-like benchmark. → Status: operating. Xylem's case study says more than 55 Bell & Gossett products, including e-1510, Series 90, Series 80, and Series 60 pumps, were selected for the National Renewable Energy Laboratory's Energy Systems Integration Facility in Golden, Colorado. The data center uses component-level warm-water cooling for supercomputing, transfers heat through an energy-recovery loop, and reuses available heat in laboratories and offices. NREL confirms that the water-based system was installed in 2012 and describes the operating hierarchy for heat reuse, dry rejection, and cooling towers. This record establishes named equipment families and an operating facility, but it does not disclose which pump serves each loop, current pump quantities by model, selected flow and head, annual pump energy, maintenance history, or attribution of whole-site efficiency to Xylem equipment. The computing platform has also changed over time. Buyers should use the reference to examine controls, low-load operation, redundancy, water chemistry, heat-reuse availability, and maintenance, not to copy a pump schedule. Current drawings, trend data, and service records would be needed for a like-for-like benchmark. The sources identify 2012 as the installation year but do not provide the exact day; the structured 2012-01-01 date is therefore a normalization placeholder, not a claimed commissioning date. NREL's current cooling description also reflects later heat-rejection additions and should not be assumed to match the original configuration. Reference checks should separate the technology loop, energy-recovery loop, process-hot-water interface, thermosyphon, and tower loop, then identify the Xylem equipment and controls in each. Useful evidence would include selected pump curves, annual operating points, standby testing, seal and bearing history, water-treatment records, measured pump energy, periods when reusable heat had no customer, and the present supercomputer's actual supply and return temperatures.
    • Field updateddescription: Status: operating. Siemens and Novva Data Centers report that Desigo PXC controllers replaced the prior cooling-control system at Novva's Colorado Springs facility. Holbrook Service arranged the controllers in a flat architecture across four chillers, two chiller plants, cooling towers, pumps, and fans so remaining equipment could respond if one chiller faulted. Siemens says the retrofit supported Novva's transition away from water cooling, eliminated prior weekly service needs, delivered no controller-related central-plant downtime for a year and a half, and saved more than two million kilowatt-hours and $176,000 annually. This is a named operator, site, equipment family, and completed project. The limits are important: Siemens is the source, no independent audit or raw trends are published, and the savings include controller replacement, rewiring, reprogrammed sequences, and a broader cooling-strategy change. The source does not disclose IT capacity, controller count, exact PXC models, baseline dates, weather or load normalization, capital cost, or final water use. Buyers should request Novva's acceptance tests, failure matrix, trend data, network design, maintenance record, and savings method before using the figures in a business case. → Status: operating. Siemens and Novva Data Centers report that Desigo PXC controllers replaced the prior cooling-control system at Novva's Colorado Springs facility. Holbrook Service arranged the controllers in a flat architecture across four chillers, two chiller plants, cooling towers, pumps, and fans so remaining equipment could respond if one chiller faulted. Siemens says the retrofit supported Novva's transition away from water cooling, eliminated prior weekly service needs, delivered no controller-related central-plant downtime for a year and a half, and saved more than two million kilowatt-hours and $176,000 annually. This is a named operator, site, equipment family, and completed project. The limits are important: Siemens is the source, no independent audit or raw trends are published, and the savings include controller replacement, rewiring, reprogrammed sequences, and a broader cooling-strategy change. The source does not disclose IT capacity, controller count, exact PXC models, baseline dates, weather or load normalization, capital cost, or final water use. Buyers should request Novva's acceptance tests, failure matrix, trend data, network design, maintenance record, and savings method before using the figures in a business case. Siemens' reference page lists project completion in 2023, while the public savings announcement is dated 22 July 2024; the announcedAt field uses the documented announcement date rather than implying that commissioning occurred then. The phrase water-free cooling should also be checked against the source's simultaneous description of chillers and cooling towers, because the public materials do not provide a final water balance or equipment schematic. Reference diligence should ask how the live cutover was staged, which functions remained locally autonomous, what faults were injected, how controller and network redundancy were tested, and whether the reported zero downtime excludes upstream power, mechanical, or sensor events. Raw interval data and a normalized baseline are needed to validate the energy and cost claims.
    • Field updateddescription: Status: operating, based on a supplier case summarized by Veolia on 23 July 2025. Veolia says an Illinois data center had low cooling-tower cycles of concentration and high blowdown under its prior alkaline treatment program. Veolia installed a TrueSense Ready-Set-Go controller to monitor pH and feed sulfuric acid, together with remote monitoring and alarms. The company reports that tower cycles doubled, cooling-water demand fell by 50%, and annual savings reached 12 million gallons and $150,000. The operator, city, facility capacity, number and type of towers, baseline period, final cycles, source-water chemistry, acid dose, measurement method, and independent verification are not disclosed. Those omissions prevent normalization by IT load, weather, or water quality and make this a supplier-reported reference rather than an audited benchmark. Acid-feed systems also create safety and corrosion risks if controls fail. Buyers should request the water model, materials review, setpoints, interlocks, containment, alarm response, trend data, calculation method, and operator reference before using the savings in a business case. → Status: operating, based on a supplier case summarized by Veolia on 23 July 2025. Veolia says an Illinois data center had low cooling-tower cycles of concentration and high blowdown under its prior alkaline treatment program. Veolia installed a TrueSense Ready-Set-Go controller to monitor pH and feed sulfuric acid, together with remote monitoring and alarms. The company reports that tower cycles doubled, cooling-water demand fell by 50%, and annual savings reached 12 million gallons and $150,000. The operator, city, facility capacity, number and type of towers, baseline period, final cycles, source-water chemistry, acid dose, measurement method, and independent verification are not disclosed. Those omissions prevent normalization by IT load, weather, or water quality and make this a supplier-reported reference rather than an audited benchmark. Acid-feed systems also create safety and corrosion risks if controls fail. Buyers should request the water model, materials review, setpoints, interlocks, containment, alarm response, trend data, calculation method, and operator reference before using the savings in a business case. The source publication date is not identified as the installation or commissioning date, so the deployment schedule and length of demonstrated operation remain unknown. “Doubled” tower cycles is also incomplete without the starting and ending values, seasonal source-water range, blowdown meter data, cooling load, and weather. Reference diligence should verify acid-storage and transfer safeguards, secondary containment, compatible materials, probe calibration, dosing proof, high- and low-pH interlocks, response after a failed sensor or stuck pump, and the remote alarm escalation record. An operator contact, water and sewer invoices, laboratory results, corrosion and deposition trends, and a calculation normalized by heat rejection would materially strengthen both the operating label and the savings claims.
  2. Recorded

    Research expansion published: 90 records

    Product
    • Record addedAdded Smardt Chiller Group
    • Record addedAdded Baltimore Aircoil Company
    • Record addedAdded EVAPCO
    • Record addedAdded Güntner
    • Record addedAdded Vahterus
    • Record addedAdded SWEP
    • Record addedAdded MITA Group
    • Record addedAdded Mitsubishi Heavy Industries Thermal Systems
    • Record addedAdded Mitsubishi Electric Hydronics & IT Cooling Systems
    • Record addedAdded Smardt Core Series water-cooled chiller
    • Record addedAdded Smardt Ultra Series water-cooled chiller
    • Record addedAdded BAC TrilliumSeries Dry Cooler
    • Record addedAdded BAC HXV Hybrid Cooler
    • Record addedAdded EVAPCO eco-Air APEX Dry Cooler
    • Record addedAdded EVAPCO eco-Air Double Stack Dry Cooler
    • Record addedAdded Güntner V-shape VARIO Dry Cooler
    • Record addedAdded Güntner Flat VARIO Dry Cooler
    • Record addedAdded Vahterus PSHE 7
    • Record addedAdded Vahterus PSHE 9
    • Record addedAdded SWEP B439
    • Record addedAdded SWEP B649
    • Record addedAdded TORRAVAL CTFP Forced-Draft Cooling Tower
    • Record addedAdded MITA MCC Closed-Circuit Cooling Tower
    • Record addedAdded MHI Thermal Systems ETI-Z
    • Record addedAdded MHI Thermal Systems GART-ZE/ZEI
    • Record addedAdded MEHITS TR2-FC-G04-Z
    • Record addedAdded MEHITS i-FX-G01-DC-Z
    • Record addedAdded Smardt New York-region data-center chiller replacement
    • Record addedAdded BAC 160 MW HPC HXV cooling project
    • Record addedAdded Güntner Zhangjiakou immersion-cooling heat rejection
    • Record addedAdded Infosys Hyderabad data-center heat exchangers
    • Record addedAdded MITA Barcelona data-processing center cooling towers
    • Record addedAdded CPC
    • Record addedAdded Stäubli
    • Record addedAdded Parker Hannifin
    • Record addedAdded USystems
    • Record addedAdded Grundfos
    • Record addedAdded Armstrong Fluid Technology
    • Record addedAdded Belimo
    • Record addedAdded Wieland
    • Record addedAdded CPC Everis UQD02
    • Record addedAdded CPC Everis UQD08 and UQDB08
    • Record addedAdded Stäubli UQD and UQDB
    • Record addedAdded Stäubli CGD
    • Record addedAdded Parker HPAHM Distribution Manifold
    • Record addedAdded Parker HPAHMC Compact Distribution Manifold
    • Record addedAdded USystems ColdLogik CL20
    • Record addedAdded USystems ColdLogik CL23
    • Record addedAdded Grundfos KPVS
    • Record addedAdded Grundfos NBG 150-125-315/336
    • Record addedAdded Armstrong 4300 Vertical In-Line
    • Record addedAdded Armstrong 4380 Vertical In-Line
    • Record addedAdded Belimo EV200H Energy Valve
    • Record addedAdded Belimo EP200H EPIV
    • Record addedAdded Wieland CP-E-4009-S3XJ
    • Record addedAdded Wieland CP-E-4013-S3XJ
    • Record addedAdded Fugaku Stäubli CGD cooling connections
    • Record addedAdded DataBank ATL1 ColdLogik rear-door cooling
    • Record addedAdded West Cambridge Data Centre ColdLogik cooling
    • Record addedAdded NorthC Eindhoven MIXIT chip-cooling loop
    • Record addedAdded Digital Realty HKG10 Armstrong chilled-water plant rooms
    • Record addedAdded Castrol
    • Record addedAdded Valvoline Global Operations
    • Record addedAdded Ecolab
    • Record addedAdded Xylem
    • Record addedAdded Siemens
    • Record addedAdded Pall Corporation
    • Record addedAdded Kurita Water Industries
    • Record addedAdded Veolia Water Technologies
    • Record addedAdded Castrol ON Immersion Cooling Fluid DC 15
    • Record addedAdded Castrol ON Immersion Cooling Fluid DC 20
    • Record addedAdded Beyond by Valvoline HPC Immersion Heat Transfer Fluid DE1
    • Record addedAdded Beyond by Valvoline HPC Heat Transfer Fluid PG25 Advanced
    • Record addedAdded Ecolab 3D TRASAR Cooling Water Technology
    • Record addedAdded Ecolab 3D TRASAR Technology for Adiabatic Cooling
    • Record addedAdded Xylem Bell & Gossett Series e-1510X
    • Record addedAdded Xylem Goulds Water Technology e-SV
    • Record addedAdded Siemens Desigo PXC4.E16
    • Record addedAdded Siemens White Space Cooling Optimization
    • Record addedAdded Pall Ultipleat High Flow Filter Housing
    • Record addedAdded Pall Profile UP Filter
    • Record addedAdded Kurita S.sensing MX
    • Record addedAdded Kurita Korrodex
    • Record addedAdded Veolia E.C.O.Film
    • Record addedAdded Veolia TrueSense Ready-Set-Go
    • Record addedAdded Castrol–Hypertec Pangbourne immersion lab
    • Record addedAdded Valvoline–Iceotope 18-month fluid validation
    • Record addedAdded NREL ESIF warm-water cooling loop
    • Record addedAdded Novva Colorado Springs cooling-controls retrofit
    • Record addedAdded Illinois data-center cooling-water treatment retrofit

Direct answers

Frequently asked questions

Direct answers drawn from the record, its comparison fields, and the evidence linked below.

What is the Güntner Flat VARIO Dry Cooler?

The Flat VARIO places a configurable finned coil in a horizontal, low-profile arrangement intended to remain below building-height constraints. Güntner publishes 10–1,300 kW for its listed fluid GFHV type and 13–3,262 kW for the listed oil GOHV type, with selectable coils, fans, circuiting, housings, and optional controls. The oil range is not evidence that every configuration or water-loop selection reaches 3,262 kW. A data-center buyer should obtain the exact water or glycol selection, peak-ambient duty, pressure drop, total fan power, snow and wind design, sound, fan-failure derating, access above and below the horizontal coil, drainage and freeze protection, recirculation clearances, controls, and structural loads. Horizontal placement can satisfy a height limit while increasing roof area and changing how snow, debris, rain, cleaning water, and maintenance personnel interact with the coil and fans. The design team should confirm safe access without blocking airflow and should model nearby parapets, screens, and units rather than assume catalog clearances suit the roof. Tender comparisons need the selected fluid model, because the published oil and fluid ranges represent different duties. Require guaranteed outlet temperature and fan power at normal, peak, fouled, low-load, and failure conditions, plus controls behavior, motor replacement space, drainability, corrosion protection, and lifting reactions.

Who makes the Güntner Flat VARIO Dry Cooler?

Güntner makes it. We file it under dry coolers, and its status is available.

What are the key specifications for the Güntner Flat VARIO Dry Cooler?

Controls: Optional aicore controls; Arrangement: Horizontal; Published GFHV range: 10–1,300 kW. These figures come from the supplier. Before comparing two products, restate both at your own water temperatures, flow, pressure, and redundancy, because a rating measured under favorable conditions will not hold on site.