Tempressure and Pressure Release Valve

1, Specification
Commodity name: Temperature and Pressure Relief Valve
Use: P/T Valve for solar water heater, electric heater and so on
2, T&P relief Valve Function:
1) The T&P valve is designed to relieve the increase in pressure which develops during the normal heating cycle.
2) This is caused by the water expanding during the heating cycle.
3) The T/P valve then will relieve the increase in pressure by releasing drips of hot water to the drain line.
4) It is recommended that an expansion control valve be fitted to the cold water supply line as it will relieve cold water, during the heating cycle expansion, thereby saving energy and increasing the life of the
5) T&P relief valve. Local regulations may make it mandatory to install an expansion control valve in the cold water supply line.
3, T/P relief valve for solar water heater Inlet pressure control:
1) High pressure may cause excessive discharge and possible premature failure of the operating relief valve.
2) The maximum water pressure usually occurs during the night, at the time of lowest water usage.
3) In any mains pressure water heater installation, if the inlet water pressure exceeds 80% of the nominal set pressure of the operation relief valve, a pressure limiting valve must be fitted to the cold inlet.
4, T&P Valve Installation:
1) T/P Valves should be installed by a licensed plumber.
2) If the temperature probe protruding from inside the inlet thread is damaged or bent, do not install, and obtain a replacement valve.
3) Clean out all deposits from the threaded boss on the heater before fitting a replacement valve, otherwise the new valve risks contamination and premature failure.