wafer type check valve

DN50-DN600
This valve is a pure automatic drive valve that only allows one-way flow of the medium, without the need for manual operation or external power. When the medium flows in the forward direction, the fluid pressure pushes the valve disc to open, and the flow channel is unobstructed throughout; When the medium shows a reverse flow trend, the reverse fluid pressure and the self weight of the valve disc work together, causing the valve disc to quickly adhere to the sealing surface of the valve seat, instantly cutting off the flow channel and completely preventing the reverse flow of the medium