The company produces and sells pneumatic V-shaped regulating ball valve with special shape fixed V-shaped cutout ball and adjustable metal seat structure, when the valve is closed, the V-shaped cut and the valve seat form a wedge-shaped shear effect, which can prevent the seizure phenomenon caused by dirt between the ball and the valve seat, with self-cleaning function, especially suitable for media containing fiber slurry, sewage and viscous particles, with a valve positioner can achieve continuous adjustment, and the flow resistance is small, the adjustment range is wide, is a wide range of uses, high-quality control valve.