Information about Diaphragm Valves

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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.

Products & Services Related to Diaphragm Valves

Air Pressure Regulators

Air pressure regulators control pressure in air lines (usually adjustable) to remove fluctuations and maintain consistent pressure for pneumatic devices.

Air Valves

Air valves allow metered fluid flow in one or both directions. They are used in pneumatic circuits to regulate the rate of activation or exhaust of cylinders and other pneumatic devices.

Control Valves

Control valves or proportional valves are power-operated devices used to modify fluid flow or pressure rate in a process system.

Plastic Valves

Plastic valves are made from plastic materials and are used in applications that require corrosion resistance and/or chemical handling.

Plug Valves

Quarter-turn plug valves use a cylindrical or tapered plug with a hole in the center to control straight through flow when in the open position.

Pressure Regulators

Pressure regulators are used to maintain a constant outlet pressure or flow.

Sanitary Valves

Sanitary valves are designed for applications requiring clean or sterile processing.

Engineering Web: Diaphragm Valves - Machine Design

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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

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