CPC F16L 55/1022 (2013.01) [F16K 47/023 (2013.01); F16K 47/08 (2013.01); F16L 55/02709 (2013.01); F16L 55/02727 (2013.01); F16K 15/038 (2013.01)] | 20 Claims |
1. A check valve assembly for a supply pipe, the check valve assembly comprising:
a hinge pin;
a first flapper and a second flapper, the first flapper pivotally coupled to the second flapper with the hinge pin;
a stopper located between the first flapper and the second flapper, the stopper being configured to limit movement of the first flapper and the second flapper; and
a plate assembly located downstream of the stopper and configured to break vortices formed in a fluid flow across the first flapper and the second flapper, the plate assembly comprising a perforated plate having a longitudinal axis that is parallel to a longitudinal axis of the stopper.
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