Delta4T two-phase cooling

Instead of flooding hot aisles with cold air in order to mask the heat, Delta4T™ technology works smarter, using the thermal capacity of vaporizing refrigerant as a heat sink to eliminate hot air.

The result is unrivaled efficiency, energy savings and space savings.

Designed for any environment: hotspot to hyperscale

A full range of modular and compact cooling solutions that scale seamlessly, deploy quickly and adapt as you grow.

Rear Door Heat Exchangers
Refrigerant
Pumps
Coolant
Distribution
Outdoor
Units
Aisle
Containment

Insights and Innovations

Case Study

Breaking the 100 kW Barrier: The Future of Non-Invasive Data Center Cooling

When a major aerospace company needed to scale cooling capacity for soaring 80 kW rack densities without service disruptions, they tested OptiCool’s new 120 kW rear door heat exchanger. Powered by OptiCool’s breakthrough Delta4T™ two phase liquid cooling technology, the system did the unexpected: it effortlessly absorbed the massive heat load while drawing just 550 W, leaving surplus capacity to cool the surrounding room.

Discover the story behind the breakthrough technology and how it’s redefining high-density data center cooling efficiency.

What our customers say

Latent heat exchange

“…really extracts a tremendous amount of heat energy, a lot more than water can, and also has the added benefit that there’s very low pumping costs because you’re circulating relatively small amounts of refrigerant as opposed to many many gallons per cabinet.”

Jim Treadway

Chief Engineer, MITRE

Cool and Satisfied Customers

A proven system for success.

Over 7000 active rear door heat exchangers (RDHx) deployed across 150 sites in these unique and challenging environments.

High Performance Computing

Power-intensive HPC workloads

Telecom

Switch centers & central offices

Enterprise

IT server rooms