Watts 125210 Temperature and Pressure Relief Valve

The Watts 40L 125210 Temperature and Pressure Relief Valve from Watts Water Technologies is a 3/4-inch bronze automatic reseating safety valve designed to protect commercial hot water tanks and water heaters from excessive temperature and pressure. It features a bronze body with a male NPT inlet and a female NPT outlet, a copper thermostat, a 3-inch thermostat probe, a test lever, tamper-resistant bonnet screws, and an automatic reseating operation, factory-set to relieve at 125 PSI and 210°F (99°C). This direct-tank-mount valve supports a maximum working pressure of 150 PSI. Common applications include commercial water heaters, hot water storage tanks, boiler systems, and institutional facilities such as hotels, hospitals, and schools, where automatic temperature and pressure protection safeguards equipment, piping, and personnel from overpressure and overheating.