1. In various valves, the flow resistance of the ball valve is small. When the full diameter ball valve is opened, the diameter of the ball channel, the valve body channel and the connecting pipe are equal and form a diameter, and the medium can flow almost without loss.

2. The ball valve can be fully closed and opened by rotating 90 °, and can be opened and closed quickly. Compared with gate valve and globe valve of the same specification, the ball valve is small in volume and light in weight, which is convenient for pipeline installation.