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 available
in 15 mm and 20 mm confi gurations.
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