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 6150-00-001-5555
NSN 6220-00-440-6596
NSN 5945-01-580-6831
NSN 6105-00-920-3417
NSN 5855-00-532-0025
NSN 5910-00-177-2640
NSN 5999-01-597-0093
NSN 4140-01-407-1139
NSN 6650-01-592-5713
NSN 6240-01-512-1856
NSN 5855-01-301-0158
NSN 5855-01-579-1555