API 594 dual plate check valve

API 594 dual plate check valve

API 594 dual plate check valve is one type of the dual plate check valve, which has been designed and manufactured to meet the various industrial requirements. The API 594 dual-plate check valve internal design minimizes the water hammer problem. Therefore, it can also significantly improve the flow efficiency which is important for large size piping system.

The API 594 dual plate check valve can be installed in any position because of disc spring assists the tight closure at any position. Moreover dual-plate check valves, have a relatively short face-to-face structure and lower weighted, it is ideal for installation at the location where weight and space are limited.

The API 594 dual plate check valve designs incorporate springs to assist closure and keep the disc seat face closed against the body seat for a more reliable isolation in zero flow or low pressure applications. Besides, this kind of check valve has spring assisted discs which can significantly reduce the water hammer Problem and operational noise. As flow through the valve slows down, the springs cause the disc plates or disc to start the closing motion. When flow stops, the disc plates are already in the closed position. This design can also minimize any back flow through the check valve which does occur with the normal swing check design.