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Pneumatic diaphragm valve

Stainless steel pneumatic diaphragm valve

Stainless steel pneumatic diaphragm valve

Pneumatic diaphragm valve, also known as diaphragm globe valve, refers to a compression device that is equipped with a flexible diaphragm or a combination diaphragm in the valve body and valve cover, and its closed part is connected to the diaphragm. The valve seat can be a weir shaped or a straight channel wall. The flexible membrane or composite membrane of the diaphragm valve is surrounded by the control room. By injecting compressed air, natural gas, water, or other substances into the control room to generate pressure, the flexible or composite membrane is compressed and bent, and the cross-section of the membrane changes or even closes, thereby controlling the flow rate and feed. When the control pressure is about 2.5 bar higher than the pressure of the conveyed liquid, the diaphragm valve can seal gas, liquid, paste and powder liquids. High elasticity diaphragm can transport any material, especially powdered materials.

  • Item NO.:

    XUVAL33-337
  • Lead Time:

    50 Days
  • Product Orgin:

    CHINA
  • Brand:

    XUVAL
  • Shipping Port:

    Shanghai
  • Payment:

    100%TT
  • Color:

    silvery
  • MOQ:

    1
Products Details
Working principle of pneumatic diaphragm valve

The pneumatic diaphragm valve consists of a valve body, diaphragm, and valve cover, and its structure is very simple. Its operation only requires compressed air to achieve control and adjustment of the valve's working state and operating speed. Throughout the entire operation process, the material only contacts the diaphragm inside the valve body, and the contact with other components is effectively separated by the diaphragm. So using a diaphragm valve to transport some sensitive materials will have a good effect.

Pneumatic diaphragm valves have advantages in conveying bulk materials, especially those that are not easy to flow. Due to the poor fluidity, easy blockage of pipelines, and high friction on pipelines during the transportation of viscous and pasty bulk materials, it is particularly important to choose valve bodies for control during the transportation of such materials. Although ordinary butterfly valves and ball valves are also commonly used for conveying bulk materials, production may stop when poor material flow causes wall blockage.

Diaphragm valves can basically prevent the above phenomena, greatly reduce the negative impact of production uncertainty, and effectively control and operate the entire system.


Technical Parameter:

Maximum working pressure   100psi(0.7Mpa,7bar)
Maximum flow   13.2gpm(50lpm)
Maximum reciprocating speed   400cpm
Maximum siphon height   4m
Maximum conveying of solid particles   3/32in.(2.5mm)
  Maximum air consumption
  28scfm(0.672m³/min)
 Air inlet size   1/4in.npt(f)
Air outlet size   1/4in.npt(f)
Fluid inlet size   1/2and3/4in.npt(f)orbspt(f)
Fluid outlet size   1/2and3/4in.npt(f)orbspt(f)
  weight Aluminum alloy pumpAluminumpump4.4kg
stainless steel pumpStainlesssteelpump6.8lg


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    If you are interested in our valves and want to know more details,please leave a message here,we will reply you as soon as we can.