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 5835-00-614-0650
NSN 2925-00-124-5465
NSN 5998-01-390-7768
NSN 4140-01-432-1447
NSN 5985-01-221-2243
NSN 5990-01-619-8514
NSN 5975-01-239-0187
NSN 6240-00-185-8367
NSN 5996-01-254-1790
NSN 5920-00-856-7040
NSN 6150-01-451-6761
NSN 5990-01-176-2724