WW0004431, Watts, 1/2 In Bronze Self Closing Temperature and Pressure Relief Valve, 100 psi, 210 degree F, 4 In Extension Thermostat

This 1/2 inch temperature and pressure relief valve, series 1XL, is used in water heater and hot water storage tank applications to provide automatic temperature and pressure protection to hot water supply tanks and hot water heaters up to 15,000 BTU/hr. It features a bronze body with NPT threaded male inlet and NPT threaded female outlet connections, extension thermostat with special thermo-bonded coating and test lever. Temperature relief is at 210 degree F (99 degreeC). Pressure relief range is 75 to 150 psi (5.2 to 10.3 bar).The pressure relief is set at 100 psi. (7.0 bar).