- Relief Valves Product Catalog
- Relief Valves protect pressurized systems such as boilers or piping from over-pressure conditions, usually by way of a spring-loaded diaphragm. They can relieve internal pressure as well as external pressure caused by vacuum formation within a tank, for example. Key specifications include valve type, port connections, valve size, pressure rating, intended application, and the materials of construction.
Relief valvesare used on pneumatic compressors, on gas lines, and in cryogenic systems — in short, anyplace where over-or under-pressure conditions can occur.Pressure and vacuum relief valvesoperate automatically but can have a manual means of actuation for testing.Atmospheric relief valvesare used on condensers. Asurge control valveis a kind of relief valve intended to reduce damage to hydraulic systems from a phenomenon known as a hydraulic surge.
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