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If you have spent your career specifying relief valves for steam systems or industrial process piping, the move to liquid-cooled data center infrastructure presents an unfamiliar combination: ASME Section VIII stamping requirements combined with sanitary-style end connections and surface finishes that come from a different industry tradition. This guide walks through the nine elements you […]

Engineering and procurement teams sourcing primary safety relief for Coolant Distribution Units (CDUs) in data center cooling deployments routinely default to the Kunkle 537. It is a credible industrial relief valve and a commonly specified fit for CDU heat-exchanger protection. But there are real reasons to qualify a second source, and Aquatrol Series 743 stainless

If you specify relief valves for liquid-cooled data center infrastructure, you are working at the intersection of two engineering traditions that almost nobody has reconciled in writing. Sanitary relief comes from food, beverage, and pharmaceutical processing. ASME Section VIII industrial relief comes from boiler rooms and pressure-vessel piping. Both show up in Coolant Distribution Unit

Thermal expansion relief is the quiet half of a liquid cooling system’s pressure protection. It does not handle the dramatic failure scenarios — a pump deadhead or a runaway thermal event triggers the primary safety relief, not the expansion valve. But every day, as the loop warms up and trapped fluid pockets between isolation valves

Why Steam Safety Valves Are Different Steam pressure relief is engineered to a different set of requirements than air, gas, or liquid relief. Steam carries enormous latent energy per pound — roughly 1,000 BTU/lb at typical process pressures — which means a steam relief event releases far more energy than a comparable gas event of

Why Sizing Matters — and Why Most Sizing Mistakes Happen Sizing a pressure relief valve correctly is the most important specification decision the engineer makes. The consequences of getting it wrong are not theoretical: an under-sized valve cannot relieve the worst-case overpressure event, which can rupture a pressure vessel and cause injury or death. An

The Aquatrol 700-Series Stainless Steel Family at a Glance The Aquatrol 741, 742, and 743 are the stainless steel safety relief valves in the Aquatrol catalog — the right choice when bronze body construction is unsuitable due to corrosive media, higher temperatures, or sanitary requirements. All three share the same core stainless steel design platform

Why the Aquatrol 88 Series Is the Compact ASME Safety Valve Standard The Aquatrol 88 Series is a compact bronze-body safety relief valve designed for air, gas, and other compressible fluid service. It is ASME Section VIII (“UV”) certified and National Board (NB) registered, making it suitable for code-compliant pressure relief on unfired pressure vessels