Type A Pinch Valve Source: Red Valve Company, Inc. Type A Pinch Valve is the original pneumatic valve consisting of two-piece body and an elastomer sleeve... Type A Pinch Valve is the original pneumatic valve consisting of two-piece body and an elastomer sleeve. This valve features a full-port opening and straight-through flow path to eliminate turbulence when open. Fabricated sleeves offer maximum wear resistance and sealing on entrapped debris. Double-wall and Cone Sleeves are also available. Red Valve Company, Inc., 700 North Bell Avenue, Carnegie, PA 15106. Tel: 412-279-0044; Fax: 412-279-7878. Need More Information? Just Ask. Click the button below to directly contact the supplier. Use it to: