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 6620-01-061-3497
NSN 5835-00-594-4921
NSN 5925-01-648-4996
NSN 4140-00-346-6485
NSN 6110-01-224-6954
NSN 5920-01-287-1542
NSN 4140-00-785-1962
NSN 6320-01-481-4871
NSN 6110-01-424-1208
NSN 6620-00-267-5273
NSN 5855-01-420-4988
NSN 6685-01-023-2166