Large Diameter Valve

Without actuators, cost-effective automated control valve, applicable for various kinds of demanding applications.

Air operated pinch valve provides a unique and cost-effective solution for fluid control problems, the secret is the rubber sleeve-the valve's only part in contact with fluid medium. Actuation of the valve is accomplished by air or liquid placed directly on the elastomer sleeve. The valve body acts as a built-in actuator, eliminating costly pneumatic, hydraulic, or electric actuators. We can shut on/off or adjust the valve by controlling the air pressure in the annular space between valve body and valve sleeve, when pressure difference is up to 2bar, the pinch valve will be shut off tightly. The sleeve's flexibility allows the valve to shut off drop-tight on solids, and avoids damage on the valve. Sealing area is equal to 95% length of the valve. There are no seats or packing to replace, no cavities or dead spots to collect debris and bind valve operation either. The abrasive resistance of pinch valve is incomparable, it is like another part of the pipeline when the valve is fully open. Pinch valve is usually applicable for hard-to-reach locations or severe demanding applications since there are no external links, levers, pistons or rotating parts to cause downtime.

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Size range: 300~2000mm, 12-84in

Actuating mode: air or liquid

Operating differential pressure: ≥2bar

Rubber material:NR/NRL/EPDM/NBR/SBRT

Cost-effective Large-Size Pinch Valves 

The full bore design eliminates pressure loss and reduces pumping costs. 

Simple two-piece design:  Body and Sleeve

Shut off drop-tight on solids 

Valve body acts as a built-in actuator

No gaps or dead spots to bind valve operation

Full bore, extra thick or conical type of valve sleeve:


Simple design, not affected by harsh external environments

No sealing elements to replace or maintain at anytime 

Rubber sleeve is the core of the air operated pinch valve, it is the only part in contact with the process medium.

Replaceable valve sleeve, easy maintenance, controllable cost