110133 Bell & Gossett 1170-75 ASME 1" Safety Relief Valve

Part #BG110133

MFG #110133

Description

Bell & Gossett diaphragm-assist operated bronze 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. The effective area of the EPDM diaphragm is approximately 5 times greater than some conventional “pop-type” relief valves. The diaphragms “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. The low differential between opening and closing pressures prevent conditions under which system water might flash into steam and cause hammering. Under normal operating conditions thermal expansion opens the valve allowing water to discharge at a low rate of flow. Under emergency conditions the valve will discharge its certified capacity. Bell & Gossett bronze body ASME Safety Valves offer the highest BTUH rating available in the marketplace for valves of their size. B&G ASME Safety Relief Valves are available in a wide range of pressure settings, 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 (8.6 bar) and maximum temperature of 250 DegreeF (121 DegreeC).

Specifications