There are a variety of different valves that can be used in specific types of applications. Not every valve is the right solution, but one of the most versatile types of in-line valves is the pinch valve.
The choice of a pneumatic pinch valve is perfect when the application or the system uses flexible types of tubing, which is found in dental office equipment as well as a variety of other types of systems and equipment. Unlike other types of valves with a handle or lever that controls the internal plunger, ball, gate or disc, the pinch valve itself operates to open or restrict the line, allowing the valve to function as an on and off control as well as to manage the flow of air through the tube at the site of the valve.
A mini pneumatic pinch valve has a simple design. It is comprised of the external body, which is sometimes called the housing, as well as an interior sleeve. As with other valves, there is also an inlet and outlet connection that connects with the tubing. Some pinch valve designs use a screw or a knob type of control, and these are the valves that are used for fine control over the volume of air through the tubing.
As the valve housing is pinched, or as the screw or knob is turned down, the internal sleeve is compressed, restricting the flow of air or shutting off air flow completely. Reversing this process opens the valve and allows the precision setting of the air through the pneumatic pinch valve with just a slight movement of the control.
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