10
2023
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07
Introduction to the advantages and disadvantages of pneumatic gate valves
Pneumatic gate valve is the closing member (gate) along the vertical direction of the axis of the channel to move the valve, in the pipeline mainly as a cut-off medium, that is, fully open or fully closed use. In general, the pneumatic gate valve can not be used as a flow adjustment. It can be applied to low temperature pressure can also be applied to high temperature and high pressure, and can be different materials according to the valve. But the pneumatic gate valve is generally not used in the pipeline for transporting slurry and other media.
Pneumatic gate valve advantages: ① fluid resistance is small; ② opening and closing torque required is small; ③ can be used in the media flow in both directions of the ring network pipeline, that is, the direction of flow of the media is not restricted; ④ fully open, the sealing surface by the working medium erosion is smaller than the globe valve; ⑤ shape structure is relatively simple, manufacturing process is better; ⑥ structure length is relatively short.
Disadvantages of pneumatic gate valve: ① shape size and opening height is larger, the space required for installation is also larger; ② in the process of opening and closing, the sealing surface people relative friction, friction loss, even to be at high temperatures easily caused by abrasion phenomenon; ③ general gate valve have two sealing surface, to processing, grinding and maintenance has increased some difficulties; ④ opening and closing time is long.
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