What are the main types of check valves?

1, which can be divided into three types according to the structure: lifting check valve, swing check valve and butterfly check valve.

① Lift check valves can be divided into vertical and horizontal types.

② Swing check valves are divided into three types: single disc, double disc and multi-disc.

③ Butterfly check valves are straight-through.

The connection forms of the above check valves can be divided into three types: threaded connection, flange connection and welding.

Second, the noun explanation:

The valve whose opening and closing parts are opened or closed by the flow and power of the medium to prevent the medium from flowing backwards is called a check valve. Check valve is an automatic valve, which is mainly used in the pipeline where the medium flows in one direction, and only allows the medium to flow in one direction to prevent accidents.