A swing check valve is a simple backflow preventer designed to allow flow in only one direction.
Swing check valves are commonly used for industrial, commercial and residential applications.
PVC swing check valves are commonly found on sump and sewage discharge pipes.
Most swing check valves are metal bodied with a metal disk that swings open in the direction of flow and is held open only when fluid is moving through the valve.
Under reverse flow conditions the swing check is held firmly against the valve seat, preventing system losses.
A swing check valve usually has female national pipe threads but may also be soldered, welded, glued or compression.
A swing check valve is a simple backflow preventer designed to allow flow in only one direction.