Composite exhaust pneumatic valve structure features and technical parameters

composite exhaust pneumatic valve used in the pump outlet and water supply and drainage pipeline, has the function of automatic exhaust and automatically fill gas improve the efficiency of water pipe lining of the road, decrease the cost of lining. Once produce negative pressure in the pipe, quickly into the air outside, protect the pipeline from compression damage; The air and can quickly drain pipe.
composite exhaust pneumatic valve features:
. Sealing is reliable, special sealing design;
。 Automatic exhaust with automatic filling gas, without people to operate;
。 Has three functions: ( ） A lot of air in exhaust pipe; （ ） System is running in the small exhaust; （ ） High-speed import outside air;
。 Durable. Small ball float fixed trajectory, not collision shell;
。 Closing force is big, the other exhaust pneumatic valve to increase the weight - Increased the closing force;
。 Than other kinds of exhaust the height of the pneumatic valve size, ( Other exhaust pneumatic valve for pneumatic valve cover central exhaust) ；
。 There will be no pressure water flushing float, cause maloperation of floating ball closed.


composite exhaust pneumatic valve technology parameters. Nominal pressure:. Mpa；
。 Applicable medium: water, sewage, raw water;
。 Medium temperature: - ℃
composite exhaust pneumatic valve size




nominal size



the dimensions ( mm）


flange dimensions ( mm）




the length of A


the width of the B/L


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diameter D


central circle diameter of bolt hole K


flange thickness C



n - bolt hole d




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