First, the working principle of high pressure check valve
The check valve is a check valve that relies on the flow and force of the opening and closing member to open or close by itself to prevent the medium from flowing backward. Check valves are automatic valves, mainly used on pipes with one-way flow of media, allowing only the media to flow in one direction to prevent accidents.

Second, the high pressure check valve structure features
The check valve is divided into structures according to the structure, and can be divided into three types: a lift check valve, a swing check valve and a butterfly check valve. Lift check valves are available in both vertical and horizontal versions. The swing check valve is divided into three types: single-lobed, double-lobed, and multi-lobed. The butterfly check valve is straight-through type, and the above several check valves can be divided into three types: thread connection, flange connection and welding.

Third, high pressure check valve parameters