The advantages of butterfly valves are as follows: Easy opening and closing fast, labor-saving, fluid resistance is small, you can often operate. Simple structure, small size, light weight. Mud can be transported, with the least amount of liquid in the pipe port. Under low pressure, a good seal can be achieved. Good regulation. The disadvantages of the butterfly Valve are as follows: Operating pressure and operating temperature range is small. Poor sealing. Butterfly valve can be divided according to the structure of the bias plate, vertical plate, inclined plate and lever. According to the sealing form can be divided into more sealed and hard seal two. Rubber seals are generally used rubber ring seal, hard seal is usually used metal ring seal. Butterfly valve can be divided according to the type of connection can be flanged and docked connection; by transmission can be divided into manual, gear transmission, pneumatic, hydraulic and electric several.
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