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15mm Pressure And Temperature Relief Valve (4.5Bar)
Our compact pressure and temperature relief valve is designed to provide against over pressurisation which can occur within an unvented hot water system if the input temperature or pressure controls fail.
The valve is designed to be fitted to the upper portion of a hot water cylinder as this is where the hottest temperatures in the system will be found. If the system rises above 95 degrees, the wax mixture within the element of the temperature probe will expand. This will lift the valve off its seat and release water to waste, therefore reducing the pressure within the cylinder.
Also, if the pressure increases (without temperature increase) the valve will stay closed until the set pressure of the relief mechanism is reached, at which point the valve will again open and the excess temperature is relieved. Some pressure and temperature relief valves come complete with PTFE coating in the MBSP inlet thread which can save valuable time on installation.
Connection Size = 15mm
Pressure = 4.5Bar
Valve to relieve excess temperature, above 95°C, from Unvented cylinder.
Also designed to discharge at set pressure if expansion relief valve fails.
Pressure and Temperature Relief Data Sheet: Download it Now WUVTP