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Lift check valve: A valve that check valve slides along the center line of the valve body. Pipeline check valve is a new type of valve. It is small in size, light in weight and good in process ability.
The double offset butterfly valve is gradually improved by the ordinary butterfly valve to adapt to different working conditions. The earliest butterfly valve structure is mainly the center door panel structure, similar to the adjustment butterfly valve, that is, the axis of the valve stem and the butterfly plate coincides with the center of the valve body pipe.
Butterfly valves are used in a wide range of applications and are suitable for flow regulation. Because the butterfly valve has a large pressure loss in the pipeline, it is about three times that of the gate valve. Therefore, when selecting a butterfly valve, the influence of the pressure loss of the piping system should be fully considered.
The plug valve is a closing or plunger-shaped rotary valve that opens or closes by rotating the passage port on the valve plug 90° degrees or the same as the passage port on the valve body.Plug valve is difference from knife gate valve. The plug of the plug valve may be cylindrical or conical shape.
The most difference between plug valve and butterfly valve are following:structure,function in pipe system,stroke of valve etc.The plug valve is a fast-switching, straight-through valve that can also be used for suspended particles due to the wiping action between the rotary sealing surfaces .
