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Pinch Valves

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About Pinch Valves

Pinch valves include any valve with a flexible elastomer body that can be pinched closed, cutting off flow, using a mechanism or fluid pressure. Pinch valves are full bore, linear action valves so they can be used in both an off / on manner or in a variable position or throttling service.  Some typical applications for pinch valves are medical, pharmaceutical, wastewater, slurries, pulp, powder and pellets.  They can effectively control the flow of both abrasives and corrosives, as there is no contact between metal parts and the transport media.

Pinch valves may be closed either by manual means, or fluid actuation. Electromechanical closure is effected by actuating a solenoid, which then lowers a bar or gate onto the sleeve, cutting off the flow.  With fluid actuated pinch valves, the pinching action is accomplished by air or hydraulic pressure placed directly on the elastomer sleeve.  The valve body acts as a built-in actuator, eliminating costly hydraulic, pneumatic, or electric operators.

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Products & Services Related to Pinch Valves

Ball Valves
Ball valves provide tight shut-off and characterizable control. They have high rangeability due to the design of the regulating element, without the complications of side loads typical of butterfly or globe valves.
Butterfly Valves
Butterfly valves control flow through a circular disc or vane by turning the valve's pivot axis at right angles to the direction of flow in the pipe. They are normally used as throttling valves to control flow.
Check Valves
Check valves are self-activating safety valves that permit gases and liquids to flow in only one direction, preventing process flow from reversing. They are classified as one-way directional valves. 
Globe Valves
Globe valves are linear motion valves with rounded bodies, from which their name is derived.  They are widely used in industry to regulate fluid flow in both on/off and throttling service. 
Needle Valves
Needle valves are small valves used for flow control in liquid or gas services. The fine threading of the stem and the large seat area allow for precise resistance to flow.
Solenoid Valves
Solenoid valves are devices that use a solenoid to control valve activation.
Solids Valves
Solids valves are used to control or regulate the flow of powder, granular and other bulk solid materials along a process line, or to and from process units, storage bins, conveyors and product packaging.

Other Topics You Might Be Interested In

  • Pinch Valves - Design Principles
    The principle of the pinch valve is extremely simple and adaptable. It works on the same principle as when you pinch the garden hose between your fingers to stop the flow. It is not possible to give a...
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  • Larox Valves in Green Liquor Service
    Pinch valves are ideal for the green liquor service as the elastic sleeve ensures that the valve does not jam or clog even if it has been closed for a longer period. The core of a pinch valve is the...
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  • Leakproof tubular welds
    Deformation-resistance welding simplifies tube joining. Researchers at Ohio State Univ. used a midfrequency dc 1,200-Hz resistance welder with British Federal WS4004 controller to...
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Engineering Web: Pinch Valves

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Solenoid-Operated 2- and 3-Way Pinch Valves, Two-Way Pinch...
Cole-Parmer Catalog > Valves > Actuated Valves > Solenoid Valves > Solenoid-Operated 2- and 3-Way Pinch Valves
Disposable Pinch Tube Valves
Fluid Dispensing Valves Interchangeable Material Path (IMP) Rotary Valve Rotary Auger Valve Disposable Material Path Rotary Auger Valve
See Techcon Systems, Inc. Profile & Catalog
RF Technologies high performance pinch valves
On / Off Valves | Manual On / Off Valves | Pneumatic On / Off Valves | Electric On / OFF Valves | Hydraulic On / Off Valves | Air Actuated On / Off
See RF Technologies, Inc. Information
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Part Numbers for Pinch Valves

Part # Distributor Manufacturer Product Category Description
RPV-FC03 Amazon Z-Man Corporation BISS Rocker Pinch Valve 5/32" Tube with Flow Control
RPV-03 Amazon Z-Man Corporation BISS Rocker Pinch Valve, 3/16" Tube
038432A Amazon Fisher Scientific BISS Fisherbrand Automatic Burets with Pinch Valve; 10mL; Amber

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