Pneumatic actuated V-shaped notch ball valve is a rotary valve, which with the valve positioner supporting the use of proportional control can be achieved with two five-way solenoid valves and control box supporting the use of switch control can be achieved. The valve’s core is designed with a special V-shaped notch, with precise closure properties and control functions for a variety of control situation, with a rated flow coefficient, adjustable proportion of large, excellent sealing performance, compact structure, and small size. This product is widely used in petroleum, chemical, electric power, papermaking, metallurgy and other industries.