To prevent the medium in the pipeline from flowing backward, a swing check valve is used. When the pressure is zero, the valve fully closes to prevent backflow. Swing check valves are a form of automatic valve that are frequently used in pipelines where the medium only flows in one direction in order to prevent accidents. There are hardly any pressure dips or turbulence with these kinds of valves.
The swing check valve has an integrated rocker swing mechanism. All of the valve's opening and closing parts are contained inside the valve body rather than penetrating it, with the exception of the middle flange's sealing ring and gasket. As a result, there isn't a single leak that might cause a valve to leak.
Swing check valves are used, like all check valves, to prevent the pipe from flowing in the wrong direction.
The valve opens by the fluid pressure that flows through a system; any flow reversal causes the valve to close.
The swing check valve allows the flow forces to press the closure component; it is a hinged clapper that rotates or swings around a supporting shaft.
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