Flat gate valve seat

The self-adjusting structure of the flat gate valve seat is characterized in that a rectangular groove is provided at one end of the valve seat near the gate, and a rectangular valve seat sealing ring is embedded in the rectangular groove. A circular dovetail groove is provided in the middle of the end of the valve seat sealing ring near the bottom of the rectangular groove, and an O-ring is embedded in the dovetail groove. Therefore, it can adjust the sealing between the valve seat sealing ring and the gate, while also ensuring the sealing between the valve seat sealing ring and the valve seat. Flat gate valves have a simple valve seat structure, scientific design, reliable sealing performance, easy processing, and can be widely used in various occasions.