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 6620-01-512-3032
NSN 6610-01-513-0654
NSN 6650-00-389-4111
NSN 6650-01-375-6985
NSN 5975-01-287-2647
NSN 4140-01-025-4911
NSN 6130-01-354-5477
NSN 5999-01-082-4488
NSN 5960-00-333-3540
NSN 6130-01-266-5501
NSN 5999-00-408-3717
NSN 5985-00-624-2656