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 6620-00-780-7786
NSN 6145-00-983-6779
NSN 5965-01-150-1920
NSN 4140-00-344-4271
NSN 6220-00-531-6430
NSN 5855-01-312-5160
NSN 6220-00-383-7354
NSN 6220-00-160-9372
NSN 6220-01-068-4066
NSN 5965-00-807-9159
NSN 6130-01-389-2031
NSN 6685-00-684-7891