From the perspective of gate valve structure, the main difference lies in the structure of the sealing elements used. According to the different structural types of sealing elements, gate valves can be divided into several different types, such as wedge gate valves, flat plate gate valves, parallel double gate valves, wedge double gate valves, etc. Of course, there are many other classification methods, such as wedge resilient gate valve, knife gate valve, non rising stem gate valve, etc. At present, the most widely used gate valve in engineering is the wedge gate valve.
