Pneumatic diaphragm valve is a special type of valve that plays an important role in industrial applications. This paper will introduce the characteristics, working principle, application field, use precautions and maintenance methods of pneumatic diaphragm valve.

  A pneumatic diaphragm valve is a special type of valve that is designed to have a diaphragm that can move within the valve chamber. The diaphragm divides the valve channel into two parts, one part is used to pass the liquid and the other part is used to stop the liquid flow. This design makes the pneumatic diaphragm valve have some unique advantages, such as easy operation, good sealing, and wide flow regulation range.

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Working Principle

  The working principle of the pneumatic diaphragm valve is to flow through the pneumatic drive to control the movement of the valve stem, and then promote the position of the diaphragm and the valve pin, when the valve is closed, the diaphragm and the valve will be clear to block the fluid into the pipeline. When the valve is opened, the fluid can flow through the channel, this working principle makes the pneumatic diaphragm valve has a good sealing performance and flow regulation performance.

  There are various standard valve series can be supplied, they are the DIN,3A, SMS, ISO/IDF, BS/RJT, ASME/BPE standard etc. You can choose us with confidence, our products meet the standards of multiple regions, such as American Standards, Japanese Industrial Standard, Korean Standard, German Standard and Italian Standard. The constitute elements of ball valve always included: one handle, one ball body with transfixion cavity, valve body, valve central spindle and spindle shaft seal.

Specification:

Name: Pneumatic fluorine-lined diaphragm valve

Size: 1"-4", DN25-DN100

Valve body material: Stainless steel 304/304L, stainless steel 316/316L

Ends: Flanges, welded, quick clamp, union, threads ( internal/external thread)

Operate mode: Manual/handle, pneumatic, electric

Handle: Pull handle, multiposition handle, stainless steel or plastic handle

Max. Work Pressure: 10 bar

Max. Working Temperature: 150ºC

Material of Seal: PTFE, SI, FEP, PFA, EPDM, NBR, FDA177.2600

Medium: Beer, dairy, beverage, pharmacy, cosmetics, fruit juice, liquor, red wine, chemical, chemical reagent, daily chemical, medicine, injection, botany, organic raw material, fermentation, adhesive, perfume, essential oil