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Diaphragm 3 Way Pneumatic Sanitary Valves
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Diaphragm 3 Way Pneumatic Sanitary Valves

Features of diaphragm valve:
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, and the packing seal structure is omitted, and no medium leakage occurs.

1. Diaphragm made of soft seal such as rubber or plastic has good sealing performance. Since the diaphragm is a vulnerable part, it should be replaced regularly according to the characteristics of the medium.

2. Due to the limitation of the diaphragm material, the diaphragm valve is suitable for occasions with low pressure and relatively low temperature.

3. Diaphragm valves can be divided into six types according to the structure: house type, DC type, cut-off type, straight-through type, gate type and right-angle type; the connection form is usually flange connection; according to the driving mode, it can be divided into manual, electric and pneumatic There are three types, of which pneumatic drive is divided into three types: normally open, normally closed and reciprocating.

4. Generally, it is not suitable to be used in pipelines where the temperature is higher than 60 degrees and transporting organic solvents and strong oxidizing media, nor is it suitable for use in higher pressure pipelines.


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