Bell & Gossett 790-75 Series 110125 Safety Relief Valve, 3/4 in Nominal, NPT, 75 psi, 250 deg F, Brass Body

B and G diaphragm operated cast iron and diaphragm-assist operated bronze ASME safety relief valves are designed to protect fired and unfired hot water pressure vessels against over-pressure conditions. These valves feature a unique failsafe disc with sufficient area to permit the valves to maintain their safety relief function in the event of a diaphragm rupture. These valves are designed, manufactured, tested and labeled in accordance with the requirements of section IV of the ASME boiler and pressure vessel code. They are offered in a wide range of capacities to permit a close match with the boiler output rating.