Immersion cooling companies

Compare the suppliers that sell the layer you need. Submer, GRC, LiquidStack and Asperitas document immersion systems. Vertiv and Delta bring tank systems from the big power and cooling groups. Hypertec and Supermicro supply immersion servers; Castrol and Shell supply dielectric fluids. The tank shortlist separates system suppliers from those other roles.

Single-phase coolant stays liquid while carrying heat to a heat exchanger. Two-phase coolant boils, then condenses and returns to the bath. The distinction changes the fluid and vapor-management requirements. See ENEOS’s process explanation and Wiwynn’s two-phase architecture.

Yes, at matching water conditions. DUG’s standard tank is rated at 30 kW with a 29.5°C, 0.9 L/s water loop. Asperitas specifies up to 60 kW for its DFCX1. GRC’s ICEraQ CDU handles 368 kW with 13°C water and its Micro 45 kW on 32°C water. Each rating basis in the table carries those conditions.

Purpose-built immersion servers ship without fans and with fluid-compatible materials. Supermicro’s BigTwin is Intel-certified for single-phase immersion. Hypertec publishes server layouts; the Motul, Hypertec and Midas release documents a joint validation. Ask your supplier for the validated server, fluid and tank combination by name.

Start with your tank maker’s approved list. Iceotope approves fluids from ten suppliers, including Castrol, ExxonMobil, Shell and PETRONAS. Then compare viscosity and flash point: ENEOS IX Type H runs 9.19 cSt at 40°C against 34.8 cSt for Type J. For two-phase, Chemours’ Opteon 2P50 boils at 48.9°C.