RF VALVE® & aiRFlex® pinch valves use advanced technology and the highest standards in design and materials of construction and provide the longest sleeve life. They meet the most rigorous service conditions. Dedicated to customer satisfaction through proven designs, innovation and pinch valve performance, RF Technologies, Inc., provides immediate, on demand technical service, sales and after sales support through our global distribution and sales network.

RF Technologies, Inc.
Ph: 410-309-1029

http://www.rfvalve.com

A pinch valve is an hydraulic, pnuematic or industrial pipe valve having a full or partially restricted port control valve for flow passage control. Pinch valves typically have a device being rigid, semi-rigid or non-rigid that can be positioned or distorted to restrict flow through the valve.

http://www.engineersedge.com/hydraulic/pinch-valves-review.htm