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 6220-01-640-6420
NSN 4140-01-511-0286
NSN 6685-00-275-4401
NSN 6110-01-333-3596
NSN 6240-01-195-0243
NSN 6685-01-373-1292
NSN 7035-01-356-4025
NSN 5935-00-260-6051
NSN 6110-01-608-3775
NSN 5950-01-335-6578
NSN 6610-01-203-8098
NSN 5915-01-411-0294