Regulating ball valve is a cartesian rotary regulating valve, it is composed of GT pneumatic piston actuator (single, double action) and v-shaped ball valve two parts. Its sealing formalism has soft sealing and metal hard sealing two kinds. Because the pneumatic v-shaped regulating ball valve is a rectangular rotary structure, when the valve core is rotating relative to the seat has a strong shear effect, so it is especially suitable for the control with fiber and micro medium. Widely used in petroleum, chemical, electric power, paper, metallurgy and other industries.