The double eccentric semi pneumatic ball valve is a new product developed by absorbing the advantages of pneumatic ball valves with different structures, V-shaped valves and track pneumatic ball valves. The pneumatic ball valve adopts a double eccentric sealing structure, with small wear, small torque, good sealing performance and long service life. The valve seat and hemisphere are treated by special hardening process, which is especially suitable for the requirements of wear resistance, erosion resistance, corrosion resistance and high temperature resistance under harsh conditions.

The pneumatic O-type ball valve is essentially derived from the pneumatic diaphragm control valve, which removes the valve positioner and valve limit switch on the basis of the pneumatic control valve. The stroke of the pneumatic valve can be controlled according to the pressure of the control air source to meet customer needs. Pneumatic O-ring ball valve can adjust and cut off, and is commonly used for two position control. It has a simple flow path, completely forms a straight pipe channel when fully opened, and has small pressure loss. It is especially suitable for high viscosity, suspension, pulp and other fluid occasions. Reliable sealing, small leakage, soft sealing ball valve can achieve bubble level sealing.