H Valves

High Pressure Expansion Control Valves limit the maximum pressure in a pressurized, unvented water heater system by relieving excess pressure to the drain line. The valve is a functional control for this type of application.

High Pressure Expansion Control Valves should only be installed on the cold or inlet installation on a water heater as the valve is primarily intended to cope with the excess pressure generated during a normal heating cycle.

RMC™ High Pressure Expansion Control Valves are currently available in 15mm and 20mm configuration.

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Model Set Pressure Catalogue Number
15mm 550kPa H502
15mm 700kPa H504
15mm 850kPa H506
15mm 1200kPa H511
15mm 1400kPa H513
20mm 550kPa H702
20mm 700kPa H703
20mm 850kPa H704
20mm 1200kPa H707
20mm 1400kPa H708