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The Seetru P3W Pressure & Temperature relief valve provides protection against both excess temperature as well as over pressurisation. The valve will automatically discharge hot water at a predetermined set pressure and/or temperature. Each of the lift mechanisms will work independently of each other. The valve is designed to be used on hot water boiler applications.

•Size range: 1/2” (DN15) to 2 1/2” (DN65)
•Set Pressure Range: 0.4 to 12.5 bar
•Set Temperature: 90 - 95°C
•BSP taper male inlet connections
•BSP parallel outlet connections
•WRAS approved PTFE valve seal and silicone diaphragm
•Sealed lever
•WRAS Approved (all sizes and pressures) – certificate number 2011005
•Designed in accordance with BS EN 1490 (Building valves. Combined temperature and pressure relief valves. Tests
and requirements)
•Valves supplied pre-set at the required set pressure and temperature
•Test certificate supplied free of charge

Please Note:
The above DN sizes are correctly related to the inlet & outlet connections mentioned. Please be aware other manufacturers may not correctly match DN sizes listed to the connection sizes of their valves.
Thus, when comparing a Seetru P&T relief valve to a valve from a different manufacturer, please always compare kW rating and threaded connection size, not the DN size.

Discharge Capacities
The discharge capacity of the relief valve must be equal to or greater than the output of the boiler it is intended to protect.
Below are the discharge capacities for both the temperature relief and the conventional pressure relief.
The temperature rating should be used to size and select the valve