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 5930-01-193-5395
NSN 5930-00-606-5603
NSN 4140-01-477-5472
NSN 5998-01-559-5269
NSN 6110-01-465-6522
NSN 5999-00-248-2691
NSN 6150-01-235-1647
NSN 7035-00-286-6221
NSN 5945-00-303-9707
NSN 5985-00-752-0632
NSN 6645-01-152-1092
NSN 6610-01-189-3001