Watts 0163725|WW0163725 - 40XL-4-1-150 T&P 1M X 1F 4" PRB (AW43001

This 1 inch bronze automatic reseating temperature and pressure relief valve with a 5 inch thermostat is installed directly in tank tappings and is used in commercial applications to provide automatic temperature and pressure protection for hot water supply tanks and hot water heaters. It features a bronze body with NPT male inlet and NPT female outlet connections, thermo-bonded coated thermostat, tamper resistant bonnet screws, test lever, and automatic reseating feature. The temperature relief is 210 degrees F (99 degrees C) and the pressure relief is 150 psi.