High Pressure Expansion Control Valves limit the maximum pressure in a pressurised, 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 configuration.

• Increased heating efficiency
• Releasing pressure at the inlet saves energy by not purging heated water
• Suitable for horizontal or vertical installation
• Dezincification resistant
• Meets Australian Standard for potable water supply