Ball valves have the following seven advantages:

1. Small fluid resistance, the full diameter of the ball valve basically no flow resistance.

2. Simple structure, small size, light weight.

3. Close and reliable. It has two sealing surface, and the ball valve sealing surface material is widely used in a variety of plastics, good sealing, can achieve complete sealing. It is also widely used in vacuum systems.

4. Easy to operate, quick to open and close, from full open to full close as long as the rotation of 90°, easy to control from a distance.

5. Maintenance is convenient, the ball valve structure is simple, the seal ring is generally active, disassembly and replacement are more convenient.

6. When fully open or fully closed, the sealing surface of the ball and the seat is isolated from the medium. When the medium passes through, it will not cause erosion of the sealing surface of the valve.

7. Wide range of applications, from small diameter to a few millimeters to a few meters, from high vacuum to high pressure.

8. Because the ball valve is wipeable during opening and closing, it can be used in media with suspended solid particles.