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About Diaphragm Valves
Diaphragm valves are related to pinch valves, but use an elastomeric diaphragm, instead of an elastomeric liner in the valve body, to separate the flow stream from the closure element. Instead of pinching the liner closed to provide shut-off, the diaphragm is pushed into contact with the bottom of the valve body to provide shut-off. Diaphragm valves are excellent for controlling the flow of fluids containing suspended solids and offer the flexibility of being installed in any position. These types of valves have found widespread use in the pharmaceutical, food processing, and water treatment industries.
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Engineering Web: Diaphragm Valves - Machine Design
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Diaphragm Solenoid Valves | Machine Design Diaphragm Solenoid Valves January 26, 2006 Series SV51 and SV 73 diaphragm isolated-solenoid valves |
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Fluid Transfer Valves | Machine Design Globe valves are used for throttling purposes and where positive shutoff is required, in sizes up to 6 in. Globe valves have a replaceable plug and |
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Valves for bioanalysis | Machine Design diaphragm gives the valves a life of over 10 million cycles (dry cycle testing). The low-coefficient-of-friction diaphragm and PEEK valve body make |

