Watts BP30 010050 Part of the BP30 Series Drain Fitting This 3 4 inch temperature and This 3 4 inch temperature and pressure relief valve 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 105 UV stabilized for sunlight resistance Specifications Body Material Bronze Brand Watts Buy American Act Compliant YES EAN 098268009347 Inlet Connection Size 1 2 IN Inlet Connection Type Male Threaded Inlet Thread Type NPT Lead Free NO Maximum Temperature Fahrenheit 180 Outlet Connection Size 1 2 IN Outlet Connection Type Female Threaded Outlet Thread Type FPT Part Number 0114039 Pressure Range 10 to 175 PSI Pressure Relief Setting PSI 10 Protection Type Pressure Series BP30 Specification Sheet BP30 It is a diaphragm operated type valve that protects equipment by opening at the desired setting to allow excess volume to be by passed back to the source