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Duckbill valve installation

Straight-through lift check valve should be installed in horizontal pipe on the road, vertical lift check valve and bottom valve is usually installed in a vertical pipe on the road, and the bottom-up flow of media.

Swing Check Valve inappropriate restrictions on the installation location, usually installed in the horizontal pipeline, but also can be installed on vertical pipes, or tilt control on the road.

Install check valve should pay particular attention to medium flow direction, the direction of the normal flow of media should be made with the direction of the arrows indicated on the body consistent with otherwise normal cut off flow of media. At the end of valve should be installed in the pump suction pipe at the bottom.

Valve closed, will be produced in the pipeline water hammer pressure, in severe cases can cause valves, piping or equipment damage, especially for big mouth pipe or high pressure pipeline, it should cause those who use a high degree of valve Note. Straight-through lift check valve should be installed in horizontal pipes on the road, vertical lift check valve and bottom valve normally installed in the vertical pipe on the road, and the media bottom-up flow.

Duckbill valve pros and cons of

Benefits: Duckbill valve, low cost, such as the use of appropriate rubber material than metal valve service life, easy installation, installation of flexible and diversified ways to repair.

 Disadvantages: Rubber Body does not apply to long-term leak-day field operations, using high-items.


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