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 6610-01-363-9745
NSN 6645-01-227-2036
NSN 6150-00-044-1746
NSN 5835-00-269-2232
NSN 5965-01-195-2168
NSN 5990-01-633-9503
NSN 6685-01-049-0570
NSN 4140-01-377-5828
NSN 5920-01-220-8229
NSN 5855-01-433-7009
NSN 5998-01-590-4154
NSN 5855-01-003-7102