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 5920-01-544-4231
NSN 5895-00-672-1772
NSN 6150-01-534-6789
NSN 6110-01-633-9660
NSN 5999-01-445-7181
NSN 5996-01-577-3838
NSN 5990-00-001-7588
NSN 5975-01-614-4088
NSN 6685-01-429-8922
NSN 7035-01-633-9537
NSN 6145-00-331-6814
NSN 5998-00-067-3743