Air operated pinch valve Air operated pinch valve are very easily constructed. They generally only consist of an extremely elasticised reinforced rubber hose, a type of housing, and two socket end covers or flanges. The rubber hoses of the air operated pinch valve are usually press-fitted and centred into the housing ends by the socket end covers or flanges. Function of Air operated pinch valve The air operated Pinch Valve works without any additional actuator; all it needs to close or operate is 30 psi air supply into the Pinch Valve body. As soon as the air supply becomes interrupted and the volume of air exhausts, the elastic rubber hose starts to open due to its great impact resilience. Advantage of Air operated pinch valve The most important benefits of using air operated pinch valve are their complete and true full bore, and the 100% tight shut off – even on solids such as granules, powders, pellets, chippings, fibres, slivers, any kind of slurries and many more aggressive products. Usually conventional valves such as ball valves, butterfly valves, piston valves or gate valves tend to fail when in process with the above mentioned aggressive products. This reason is because the valve body seat or the gate/piston of the valves wears out too quickly and the valve can no longer shut off tightly. Whereas air operated pinch valve work without almost any wear of the elastic rubber hose because the kinetic energy of the solids are absorbed through the extremely high elasticity of the rubber. The rubber mixture is also anti abrasive. (Welcome to china pinch valve manufacturer)