The advantages of gate valves are as follows:
1. Small flow resistance. The medium channel inside the valve body is straight, the medium flows in a straight line, and the flow resistance is small.
2. It is more labor-saving when opening and closing. Compared with the globe valve, because whether it is open or closed, the direction of movement of the gate is perpendicular to the flow direction of the medium.
3. The height is large and the opening and closing time is long. The opening and closing stroke of the gate is large, and the lowering is carried out by the screw.
4. The phenomenon of water hammer is not easy to occur. The reason is the long closing time.
5. The medium can flow in any direction on both sides, which is easy to install. The gate valve channel is symmetrical on both sides.
6. The length of the structure (the distance between the two connecting end faces of the shell) is small.
7. The sealing surface is easy to wear and affect the service life. When opening and closing, the two sealing surfaces of the gate and the valve seat rub against each other and slide against each other, which is easy to cause abrasion and wear under the action of the medium pressure, which affects the sealing performance and shortens the service life.

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