A valve designed to release under excessive pressure and/or excessive temperature by opening at a predetermined pressure and/or temperature. Thermostatically operated valves close when the pressure is relieved or the temperature is reduced. Fusible plug valves require replacement of the plug. See also valve, safety relief and valve, regulating. Temperature.
Classification: Safety or relief valves
NSN 6645-01-567-8282
NSN 6620-01-491-1434
NSN 6130-00-499-0735
NSN 5996-00-827-2094
NSN 6320-01-372-2796
NSN 6685-01-198-0875
NSN 6240-01-262-5787
NSN 5855-00-361-0167
NSN 6130-00-583-3849
NSN 5930-01-347-9219
NSN 5855-00-688-9954
NSN 5920-01-153-2690