Pneumatic V-shaped regulating ball valve is a newly developed hard sealed and PTFE sealed regulating ball valve. It adopts a movable valve seat structure loaded with leaf springs, which will not cause jamming or detachment between the valve seat and the sphere. The sealing is reliable and the service life is long. The V-shaped ball valve core is designed with a V-shaped notch with a special switch, which has a large flow capacity, low pressure loss, and precise interception and control functions. The flow characteristics are approximately equal in percentage. The opening and closing components adopt a V-shaped spherical defect structure, completely solving the problem of medium deposition in the valve chamber.