Val-MaticSilent CheckValve

Globe styleSilent CheckValve

Pressure, Temperature & Vacuum Relief Valves are safety controls for unvented water heaters. Ensuring that the pressure and temperature of the water do not exceed 99ÂÂ °C in the event the normal thermostatic controls fail.

It is recommended that the easing lever be actuated every six months to prevent accumulation of mineral deposits that may impair valve operation.

WattsSilent CheckValve

The Pressure and Temperature Relief (P & T Relief) Valve should be installed at the heater. The system inlet pressure should be no higher than 80% of the set pressure of the P & T Relief Valve.

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The Cla-Val 581 Series Silent Globe Check Valve has a spring-loaded poppet that allows the valve to close before flow reversal occurs, resulting in a silent, non-slam closure.

 Lever should be operated smoothly as a sudden influx of water may cause the auxiliary pressure relief device to activate.

Silent check valvesaustralia

 The Drain Line must be compliant with AS 3500. Failure to provide adequate drainage may result in premature activation of the auxiliary pressure relief device.

Installers must ensure that the set pressure of the High Pressure Expansion Control Valve is suitable for use with the water heater it will be installed with.

Constructed of a cast iron body with bronze trim, the Cla-Val Silent Globe Check Valve offers watertight shutoff with metal-to-metal seating. For special applications, stainless steel trim is available and Buna-N®  resilient seats are available as options.