Floating ball valve is one of the best sealing performance valves, because the ball is floating, when the valve closes, the whole ball can be pushed to the sealing ring with the medium, and because the cross-sectional area of the force is equal to the cross-sectional area of the diameter, so the sealing of this kind of ball valve is the best, and the opening and closing speed of the valve is fast. Reasonable valve design, light weight, easy installation and transportation.