Milton roy india [p] ltd manufactures automatic pinch valves. These valves feature a valve body, a cylindrical sleeve made from natural or synthetic rubber and two flanges. Valve operation: applying pressure between the body and the sleeve via connection closes the valve. Usually pressure is applied by air but the air can be replaced by water. When the pressure is applied the sleeve deforms to close the valve. Careful use of fibre reinforcement in the construction of the sleeve ensures that total shut off is achieved. Three grades of rubber are available as standard [other materials on request]. The technical features and characteristics of pinch valves are - full bore valves, total sealing for powders, liquids, pastes and slurries without glands. Materials used in milton roy india [p] ltd.`s pinch valves are: natural rubber, neoprene, pvc; sizes dn20 to 300. The various applications of the pinch valves are - waste water, slurries, sludge extraction, pneumatic conveying [powdered products, granules, cereals], cleaning water or pulp transfer [sugar refineries].