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Bell & Gosset Safety Relief Valves

Bell & Gosset
Safety Relief Valves

Bell & Gossett cast iron and bronze body ASME Safety Relief Valves are engineered in accordance with the requirements of Section IV of the ASME Boiler & Pressure Vessel Code for Heating Boilers, and their capacities are certified by the National Board of Boiler and Pressure Vessel Inspectors.

B&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 overpressure conditions. The effective area of the EPDM diaphragm operated valves is approximately five times greater than some conventional "pop-type" relief valves. The diaphragm's "oversized" effective area generates a greater operating force which helps to overcome the effects of fouling. Bell & Gossett ASME Safety Relief Valves feature a unique fail-safe disc with sufficient area to permit the valves to maintain their safety relief function in the event of a diaphragm rupture.

B&G ASME Safety Relief Valves are available in a wide range of capacities, other than those listed, to closely match the BTUH output rating of hot water heating boilers, direct fired hot water heaters (use bronze valves only), storage tanks with indirect heaters (use bronze valves only), and the BTUH load of heat exchangers and other pressure vessels handling water at a maximum pressure of 125 psi and maximum temperature of 250 F.