Quik-Stop products engineered by Thomas Ladisch Associates include tubing pinch valves for pharmaceutical and biopharmaceutical industries. Available as size 5 up to 3/4" outer diameter and size 7 1-1/2" outer diameter models, the valves feature all stainless steel construction. The valves are also available as manual, manual with lockout, flow control, actuated, and actuated with indicator types.

Elasto-Valve Rubber Products Inc.'s line of pinch valves includes: manual pinch valves, high pressure manual pinch valves, control pinch valves, enclosed body pinch valves, 1/4 turn high-flow pinch valves, and petite pinch valves. The sleeves of the manual valves are its only wetted part, which eliminates possible contamination of the process materials. The control valves are available in double-acting, fail-open, or fail-closed configurations; while the enclosed body valves are designed for tough slurries, abrasives, and corrosive chemical applications.

Specialty Mfg. Co. produces 1/4" outer diameter tube pinch valves, 1/8" outer diameter tube pinch valves, miniature pinch valves designed to fit 1/8" and 1/4" outer diameter tubing applications, and pinch toggle valves designed to fit 1/8" outer diameter applications.

Weir Minerals offers two pneumatic pinch valve models, one designed for harsh, highly abrasive control applications dealing with liquid-solids slurry & gas-solids and the other for remote operation using typical plant air. Hand wheel-operated, enclosed-body pinch valves produced by the company are used for positive control of abrasive and corrosive flowing media.

Red Valve Co. engineers air-operated pinch valves, sanitary pinch valves, control pinch valves, manual pinch valves, and pinch valve sleeves. Control pitch valve types available include surge relief, high pressure, open frame, centerline closure, diaphragm actuated, electrically actuated, D-port, and pneumatic.

Industrial Specialties Mfg. supplies polypropylene pinch valves for 1/4" outer diameter tubing or smaller, and pinch valves with micrometer. Designed for fine flow adjustment, the pinch valves with micrometer are available with outer diameters of 5/32"-1/4", 5/16"-3/8", or 7/16"-1/2".

Onxy Valve Co. manufactures automatic and manual pinch valves available in sizes ranging from 0.25" to 30" and with full round ports or pre-pinched ports. The automatic valves are pneumatically or electrically operated, while the manual valves feature open frame or enclosed construction.

Pinch valve types offered by General Rubber Corp. include: isolation valves, control valves, interchangeable valves, shell and tube valves, and slip on valves. Each pinch valve type is either manually, electrically, pneumatically, or diaphragm operated. Other feature include non-clogging, abrasion and corrosion resistant, maintenance free, and drop tight seals.

Schubert & Salzer's pinch valves feature zero hold up volume and are used in food and beverage and biopharmaceutical applications. Available in sizes from 1/2" to 2" with multiple actuator options, the valves can handle applications where heavy contaminants, high sold content, or heavy viscosities are present. Pinch valve types available include: miniature pinch valves, pinch valves for poly tubing, pinch control valves, sanitary pinch valves, sanitary pinch control valves, and sterile pinch control valves for flow through tubing.

Aside from custom building pinch valves, Arco Associates designs pneumatic pinch valves and solenoid pinch valves for bioprocessing, medical, and industrial applications. The pneumatic valves can support tubing ranges from 0.125"-1", while the solenoid valves support tubing ranges from 0.125"-0.375. Both pinch valve types feature a self-aligning, snap-in tubing valve head.

Jamieson Equipment Co. Inc. distributes pinch valves manufactured by WAM Group Inc.. Featuring an operating pressure of 4 bar, the valves are used primarily to arrest product flow in pneumatic conveying lines, including powders, granules, fibers and liquids. The valves have control pressure of maximum 6 bar, and maximum differential pressure of 1.5 to 2 bar depending on sleeve properties.

Richway Industries Ltd.'s pinch valves are available in 1/4", 3/8", 5/8", 1", 1-1/4", and 2" sizes. Valve specifications include high flow capacity of  2 to 220 Cv, and actuation pressures up to 90 psi.

Pinch diverter valves produced by Cyclonaire Corp. are suited for medium pressure (up to 85 psig) conveying, and feature double wall construction and obstruction-free flows. Used in both indoor/outdoor applications, the valves are available with flanged, plain, or grooved pipe connections.

Valtrorc International manufactures pinch valves in single or multiple tube configurations. Available in normally closed, normally open, or closed open designs, the valves feature operating pressures up to 30 psig, and outer diameter tubing from 1/16" to 5/16" or 3/32" to 1/4".

Asco Valves' pinch valves are used in drug dispensing, food and beverage dispensing, urinary collection systems, dialysis equipment, and intravenous systems applications. Featuring inner diameter tubing of 0.030"-0.250", the valves are available in normally closed, normally open, or universal construction - with up to 50 psi.