Cooling and power systems decide how much AI computing a data center can run, and how reliably it runs. RexEdge designs, manufactures and tests both in-house. This post explains why the two belong together and how RexEdge builds them.
Why Cooling and Power Systems Must Work Together
AI racks use far more electricity than older server racks, and almost all of that power turns into heat. So every extra kilowatt of power needs a matching way to remove heat. If one side is undersized, the other side cannot be fully used.
Industry leaders agree. Schneider Electric says tightly integrated power and liquid cooling is essential to scale efficient, resilient AI data centers. Coverage of Dell’s new Vera Rubin rack describes AI infrastructure as a complete system, with power, cooling, networking and compute engineered together. Vertiv’s Ron Bednar adds that AI is turning liquid cooling into a system-management imperative.
The practical result is clear. Buying cooling and power from separate vendors creates gaps in design, testing, and responsibility. In contrast, one engineered system closes those gaps.
RexEdge Cooling Systems: SFN and PFN
RexEdge makes two core cooling products for data centers: Secondary Fluid Network (SFN) and Primary Fluid Network (PFN) systems. Each one handles a different part of the cooling path.
- Secondary Fluid Network (SFN). A closed pipe network that carries coolant between the racks and the cooling equipment. It also removes heat from high-density racks and AI workloads.
- Primary Fluid Network (PFN). In industry terms, the facility-side loop. It then moves that heat on to the building’s main cooling plant.
SFN is already proving itself in India. Vertiv said its 30 MW Mumbai project used a secondary fluid network to support AI workloads.
RexEdge gives each project its own thermal, hydraulic, and electrical design. As a result, the system fits the site, instead of forcing the site to fit the product.
RexEdge Power Systems for Data Centers
Cooling only works when power is stable. For that reason, RexEdge also supplies the electrical side of the data center, built for mission-critical uptime.
- Transformers. The range includes distribution, dry-type, and power transformers.
One team handles thermal, hydraulic, and electrical design. Therefore, both sides are planned together from the start.
Pipes, Tubes, and In-House Testing
Liquid cooling needs pipework that does not leak or contaminate the coolant. RexEdge makes stainless and alloy steel pipes and tubes in-house. The range also covers fittings, flanges, steel hoses, and metal expansion joints.
Testing is also part of the process. RexEdge runs eddy current and ultrasonic testing in-house. It then carries out pre-dispatch inspection and performance testing. As a result, problems can be found at the factory, not at the data center.
Clean installation matters too. For example, Vertiv said it built procedures to limit dust entering the cooling loop while it installed SFN skids in Mumbai.
How RexEdge Engineers Complete Systems
The RexEdge tagline says it well: we don’t supply equipment; we engineer complete systems. In practice, a project follows five steps.
- Design. Engineers create a project-specific thermal, hydraulic, and electrical design.
- Manufacture. Next, the team fabricates pipes, tubes, and fittings in-house.
- Test. Eddy current and ultrasonic testing come first, followed by pre-dispatch inspection and performance testing.
- Deliver and commission. Then, RexEdge handles integration, delivery, installation, and commissioning support.
- Support. After-sales support and long-term partnership keep the system running.
Commissioning deserves extra attention. Schneider advises operators to weigh commissioning capability alongside hardware availability when they choose suppliers in India.
Who Needs Integrated Cooling and Power Systems?
RexEdge serves AI and hyperscale data centers, colocation facilities, enterprise facilities, and industrial plants. In addition, the company is based in India and has a U.S. office in Bellevue, Washington.
Water use is another reason to plan carefully. Schneider cites an S&P projection that 60-80% of India’s data centers will face high or extremely high water stress within the decade. In fact, closed-loop liquid cooling uses far less water than evaporative cooling.
Planning a new data center, or upgrading an existing one? Contact RexEdge to discuss your cooling and power systems.