the installation instructions on duckbill check valve

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Courtesy of gongyi Liangda Tubes Co., Ltd

Straight-lift check valve should be installed in horizontal pipelines, vertical lift check valve and bottom valve is usually installed in a vertical pipeline, and the media bottom-up flow. Swing Check Valve mounting location is wrong restrictions, usually installed in horizontal piping, but can also be installed in the vertical pipe or dump material pipeline.

         Install Duckbill Check Valve should pay particular attention to medium flow direction should be the normal flow direction of the medium indicated by the arrow on the valve body is consistent, otherwise Rubber duckbill valvewill truncate the normal flow of media. Bottom valve should be installed in the bottom of the pump suction line. Check valve is closed, it will produce water hammer in the pipeline pressure can cause severe valves, piping or equipment damage, especially for big mouth lines or high voltage lines, it should cause those who use check valves close attention . Straight-lift check valve should be installed in horizontal pipelines, vertical lift check valve and bottom valve is usually installed in a vertical pipeline, and the media bottom-up flow.

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