Working Principle And Characteristics Of Ball Valve

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The opening and closing part of the Lined Ball Valve is a sphere with a circular channel. It rotates around an axis perpendicular to the channel, and the sphere rotates with the valve stem to achieve the purpose of opening and closing the channel. The ball valve can be tightly closed by rotating 90 degrees and a very small torque. According to the requirements of the working conditions, different drive devices can be combined to form various ball valves with different control methods, such as electric ball valves, pneumatic ball valves, hydraulic ball valves, etc.

Features of ball valves:

1. The ball valve is not restricted by the installation direction, and the flow direction of the medium can be arbitrary. The fluid resistance is small, and the full-bore ball valve has basically no flow resistance.

2. The ball valve has a simple structure, a relatively small size, a light weight, and is easy to maintain.

3. The ball valve is tight and reliable. It has two sealing surfaces. At present, the sealing surface materials of the ball valve are widely used in various plastics, with good sealing performance and can achieve complete sealing. It is also widely used in vacuum systems.

4. The ball valve is suitable for frequent operation, quick opening and closing, light, and quick opening and closing. It only needs to rotate 90° from full open to full closed, which is convenient for long-distance control.

5. Easy maintenance, the sealing ring of the ball valve is generally movable, and it is convenient to disassemble and replace.

6. The ball valve has good sealing performance. When fully open or fully closed, the sealing surface of the ball and the valve seat is isolated from the medium, and the medium will not corrode the valve sealing surface when passing through.

7. The ball valve has a wide range of applications, with diameters ranging from a few millimeters to several meters, and can be used from high vacuum to high pressure.

8. Since the ball valve has a wiping property during the opening and closing process, it can be used in media with suspended solid particles.

9. The ball valve has low fluid resistance, no vibration, and low noise.

Working Principle And Characteristics Of Ball Valve

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