Pneumatic explosion-proof ball valve

　　Overview of Pneumatic Explosion proof Ball Valve Products

The pneumatic explosion-proof ball valve produced by our company is composed of AT (GT) series pneumatic actuators and floating ball valves, suitable for regulating and cutting occasions. Pneumatic explosion-proof ball valves have excellent sealing performance, large flow capacity, simple structure, long service life, and are easy to maintain. The equipped actuator has the characteristics of simple structure, compact size, excellent performance, and large output torque. Pneumatic explosion-proof ball valve equipped with explosion-proof travel limit switch, explosion-proof solenoid valve, pressure reducing valve, and 0.4-0.7MPa gas source can achieve switch operation, and send two pairs of passive contact signals to indicate the switch of the valve. There are two types of actuators: single acting and double acting. The unique advantage of single acting type is that once the power source fails, the explosion-proof pneumatic ball valve will automatically be in the open or closed position according to the requirements of the control system. Pneumatic explosion-proof ball valves are widely used in industrial fields such as chemical, petroleum, textile, power, food and pharmaceutical, refrigeration, aviation, aerospace, papermaking, etc. They can not only control gas, liquid, and vapor media, but also control sewage and fiber containing substances.

　　Product features of pneumatic explosion-proof ball valve

(1) Low fluid resistance, ball valves have the lowest fluid resistance among all valve types, even for reduced diameter ball valves, their fluid resistance is quite small.

(2) Thrust bearings reduce the friction torque of the valve stem, allowing for long-term balanced and flexible operation of the valve stem.

(3) The valve seat has good sealing performance and is made of sealing rings made of materials such as polytetrafluoroethylene. The structure is easy to seal, and the sealing ability of the ball valve increases with the increase of medium pressure.

(4) The valve stem seal is reliable. As the valve stem only rotates without lifting, the packing seal of the valve stem is not easily damaged, and the sealing ability increases with the increase of medium pressure.

　　Main design standards

Design and Manufacturing GB12237-89 API608、API 6D、JPI 7S-48、BS5351、DIN3357

Flange dimensions JB/T74-90 GB9112～9131、HGJ44～76、SH3406、ANSI B16.5、JIS B2212～2214、DIN2543

Structural length GB12221-89 ANSI B16.10、JIS B2002、NF E29-305、DIN3202

Inspection and Testing JB/T 9092 API 598、GB/T13927