ZXS films angular single pneumatic control valve seat is a top structure of the control valve, valve, compact structure, smooth flow path, the pressure drop, flow rate. Spool-oriented area, resistance to shock, turn off the valve seat performance in line with GB/T4213-92 standard control valve is equipped with multi-spring diaphragm actuator, its compact structure, the output force, the valve is widely used to control high viscosity medium and containing fluid and mud particles, flash fluids. Country of Origin: Model ZXS type of Fuyang City