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Check Valve structure
May 24, 2017

Check valve: According to the structure, can be divided into lift check valve, swing check valve and butterfly check valve three kinds. Lift check valve can be divided into vertical and straight-through two types. The Swing check valve is divided into single, double and multiple three kinds. Butterfly check valve is divided into butterfly-type double, butterfly-type single, the above several check valves in the form of connection can be divided into threaded connection, flange connection, welding and clamp-type connection four kinds.


Check valve installation should note the following items

1, in the piping system do not allow the check valve to bear the weight, large check valve should be independent support, so that it is not affected by the pressure caused by piping system.

2, installation attention to the direction of the flow of the medium should be consistent with the direction of the valve body marked arrows.

3, Lift vertical valve Check valves should be installed on the vertical pipe.

4, the lift type horizontal valve check valve should install on the horizontal pipeline.