Pneumatic Diaphragm Valve

Pneumatic Diaphragm Valve

Introduction:

Pneumatic diaphragm valve is a special form of shut-off valve. Its opening and closing part is a diaphragm made of soft material, which separates the inner cavity of the valve body from the inner cavity of the valve cover and the driving parts, so it is called a pneumatic diaphragm valve. The most prominent feature of the pneumatic diaphragm valve is that the diaphragm separates the inner cavity of the lower valve body from the inner cavity of the upper valve cover, so that the valve stem, valve disc and other parts located above the diaphragm are not corroded by the medium, eliminating the need for packing and sealing structure, and will not produce medium leakage.

Classification:

Pneumatic diaphragm valve is usually divided into: normally closed pneumatic diaphragm valve, normally open pneumatic diaphragm valve and reciprocating pneumatic diaphragm valve.

Advantages:

The pneumatic diaphragm valve has two main advantages: one is that the valve does not require a separate stem packing and sealing structure, the diaphragm plays a role in sealing the valve stem while cutting off the medium, and the other is that the highly flexible diaphragm closes reliably , and even the dirty liquid can be cut off well. Therefore, the operating mechanism and the medium channel are completely separated, so that the pneumatic diaphragm valve is not only suitable for the food industry and the medical and health industry, but also for some difficult-to-transport media and more dangerous media.

Main Parameters:

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