Series N240X, N241X Automatic Reseating Temperature and Pressure Relief Valves are used in commercial water heater applications to provide automatic temperature and pressure protection to domestic hot water supply tanks and hot water heaters. They feature a bronze body, stainless steel spring and thermostat tube, tamper-resistant bonnet screws, automatic reseating feature, and test lever. Model N240X has a NPT female inlet and NPT female outlet. Mode N241X has a NPT male inlet and NPT female outlet. Series N240X, N241X are ASME rate and CSA listed. Temperature Relief: 210°F (99°C), Pressure Relief Range: 75 to 150psi (5.2 to 10.3 bar), Standard Pressure Settings: 75, 100, 125, or 150psi (5.27, 7.03, 8.79, or 10.55 bar).