What is a PVC check valve？

A PVC check valve, also known as a non-return valve, is a special valve made of PVC and installed on a PVC water pipe line that only allows the flow of water in one direction through the valve.

has a variety of roles but is mostly used to regulate and control the flow of fluids, especially into pumps. It also available as a union check valve combination which is able to allow a quick connect/disconnect location anywhere in a water system's line. And the less necessity for the maintenance is also appreciated. Whatever, the PVC check valves have enjoyed a high reputation in the world market because of the fine workmanship and quality material.