Its EPR (Ethylene Propylene) seal material ensures chemical compatibility and leak-free performance when handling hot water or steam systems

When performing a section block repair or teardown

Check for consistent 24VAC at the input terminals and confirm the grounding circuit is secure

the valve can be installed in any orientation

Kunkle Valve 0537-H01-HM0030 Valve 320734-701 Its EPR (Ethylene Propylene) sealThe Kunkle Valve 0537 H01 HM0030 is a heavy duty ASME Section IV steam relief valve engineered specifically for high capacity hot water boiler applications. Constructed with a bronze B584 alloy 8440 seat and a durable stainless steel spring, this valve ensures reliable overpressure protection in demanding commercial and industrial heating systems. Featuring a 2" FNPT inlet and a 2 1 2" FNPT outlet, it is factory set at 30 PSI, delivering a certified