MTH - Hermetic Pumps for Data Center Cooling

Hermetic Reliability for the Next Generation of Data Center Cooling

Why MTH Pumps HP Pumps Are Becoming the Standard for Two-Phase, Direct-to-Chip Systems.

As data centers push toward higher rack densities and lower energy consumption, direct-to-chip (DTC) liquid cooling, particularly two-phase refrigerant systems, is rapidly moving from pilot projects to large-scale deployment. At the heart of these systems is one non-negotiable requirement: absolute reliability with zero tolerance for leaks.

That requirement is exactly why many data center operators and OEMs are specifying MTH Pumps HP Series hermetic pumps.

Two-phase refrigerant cooling places unique demands on circulation pumps. Unlike traditional water or glycol loops, these systems operate with volatile refrigerants that cannot tolerate shaft seals, packing, or leakage paths of any kind.

MTH HP Pumps are fully hermetic, meaning no external leakage points. The pump and motor are enclosed within a single pressure boundary, making them inherently suited for refrigerants used in two-phase DTC cooling.

These pumps are commonly integrated into coolant distribution units (CDUs) and refrigerant circulation skids supporting high-density CPUs, GPUs, and AI accelerators.

While two-phase DTC cooling may feel “new” to the data center world, hermetic pump technology is not. MTH has decades of experience supplying sealed pumps for demanding industrial services where leakage is unacceptable. That industrial pedigree is now being applied directly to Hyperscale data centers, colocation facilities, high-performance computing , and AI clusters. Their hermetic design, reliability, and adaptability make them a foundational technology enabling higher compute performance with lower risk.

For data center operators and OEMs evaluating long-term cooling strategies, hermetic pumps are no longer optional, and MTH HP pumps are increasingly the benchmark.

For additional information on hermetic pump solutions for two-phase and direct-to-chip data center cooling, contact BA Associates. Our team works closely with OEMs and end users to select, specify, and support hermetic pump systems designed for zero-leak, mission-critical applications. info@bonardi.com