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Difference between revisions of "Pinch Valves"
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[[File:Air_Operated_Pinch_Valves.jpg|thumb|200px|right|Air Operated Pinch Valves]] | [[File:Air_Operated_Pinch_Valves.jpg|thumb|200px|right|Air Operated Pinch Valves]] | ||
A '''Pinch Valve''' is a full bore or fully ported type of [[Control Valves|control valve]] which uses a pinching effect by pressurized air to obstruct the flow. Air operated Pinch Valves are very easily constructed. They generally only consist of an extremely elasticized reinforced rubber hose, a type of housing, and two socket end covers or flanges. The rubber hoses of the air operated Pinch Valves are usually press-fitted and centred into the housing ends by the socket end covers or flanges. | |||
==Applications== | ==Applications== | ||
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== Function == | == Function == | ||
The air operated Pinch Valve works without any additional [[Actuators|actuator]]; all it needs to close or operate is 30 psi | The air operated Pinch Valve works without any additional [[Actuators|actuator]]; all it needs to close or operate is 30 psi or | ||
2-6 bar 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. | 2-6 bar 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. | ||
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==Industries== | ==Industries== | ||
Air operated Pinch Valves are being commonly used in a wide range of many different industries such as: | Air operated Pinch Valves are being commonly used in a wide range of many different industries such as: | ||
* Bulk Solids handling | * Bulk Solids handling | ||
* Cement industry | * Cement industry | ||
* Waste water industry | * Waste water industry | ||