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 6620-01-534-8677
NSN 5905-00-053-3468
NSN 5835-01-645-2892
NSN 6650-01-476-3329
NSN 6650-01-268-4594
NSN 5990-01-272-4091
NSN 5930-00-057-9651
NSN 2925-01-364-7926
NSN 7035-00-529-3128
NSN 6145-01-100-0732
NSN 5960-01-157-7009
NSN 6135-00-078-9931