[1] Air-operated pinch valves consist of an elasticised reinforced rubber hose, a type of housing, and two socket end covers (or flanges).
In air-operated pinch valves, the rubber hoses are usually press-fitted and centered into the housing ends by the socket covers.
There is no additional actuator, the valve closes as soon as there is a pressurized air supply into the body.
They are commonly applied to medical instruments, clinical or chemical analyzers, and a wide range of laboratory equipment.
[3] The sleeve material is selected among suitable synthetic polymer based upon the corrosiveness and abrasiveness of the flow media.