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Introduction of Gate Valve Seat Structure

Gate valve form sealing by seat and gate to achieve the valve opening and closing. Thus, the valve seat structure is critical particularly. Typically, the valve seat structure allows the whole part, it can also be a separate seat ring structures.
Integral seat and the valve body are a whole, when the valve body is made of corrosion resistant material, integral seat can be processed by the base material directly, it can also be same as carbon steel type valve, on the base surfacing for different media materials. Seat ring can be chosen other required material that is different from the material of valve body. Then connected to the corresponding valve seat slot. But it is worth noting that when the seat ring contact with the body used by welding process, we also need to consider the two materials weldability.
There are three forms of connection between seat ring and valve body, they are expansion mosaic type, thread type and welding. 

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