Bell & Gossett 790-30

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 and 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.

Bell & Gossett Safety Relief Valve, Model: 790, 3/4 in, NPT Connection, 125 psig Working, 30 psig Setting Pressure, Brass Body, 250 deg F, 2-9/16 in L, 4-9/16 in H, 790000 Btu/hr Capacity

Features

• Protect fired and unfired hot water vessels against overpressure conditions
• Highest BTUH rating for valves of similar size
• Feature a unique fail-safe disc

Specifications

Documentation