These Self Sealing Type Knife Gate Valve provided by the gate valve manufacturer are very widely used because they have the advantages of small flow resistance, small opening and closing torques, short structure length, good sealing performance, small size, reliability, stability, high performance, etc. compared with the traditional valves. At the same time, they also have disadvantages. The cast iron gate valve and the cast steel gate valve are not able to control flow amount of the media, and they have the disadvantages of breakable sealing surface, long opening and closing time, complicated structure, etc. However, the advantages of the gate valves allow them to be widely used in different applications. In addition, the developing technology can help the gate valves to overcome the shortages.

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