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How the check valve pressure test method worksRelease Date: May 09, 2018
Check valve refers to the valve that automatically opens and closes the valve flap by relying on the flow of the medium itself, and is also used to prevent the medium from flowing backward. Check valve belongs to an automatic valve, and its main function is to prevent the medium from flowing backward, to prevent the pump and the drive motor from reversing, and to release the container medium.
Pressure test method of check valve:
Check valve test status: The lift check valve flap axis is in a position perpendicular to the level; the swing check valve channel axis and the flap axis are in a position approximately parallel to the horizontal line.
During the strength test, the test medium is introduced from the inlet to the specified value, and the other end is closed. It is acceptable to see that the valve body and valve cover have no leakage.
For the leak test, the test medium is introduced from the outlet end, and the sealing surface is checked at the inlet end, and there is no leakage at the packing and gaskets.