Product description of Pneumatic O-type on-off Ball Valve
Pneumatic O-type on-off ball valve is composed of pneumatic piston actuator and O-type ball valve, including soft seal ball valve and hard seal ball valve The valve core adopts cylindrical through-hole sphere. The pneumatic O-type on-off ball valve takes compressed air as the power source, receives the switching signals of distributed control system (DCS), programmable controller (PLC), etc., and realizes the quick position control of the valve through the solenoid valve. Pneumatic O-type on-off ball valve is mainly used to cut off or connect the medium in the pipeline, and can also be used for fluid regulation and control
Features of Pneumatic O-type on-off Ball Valve
1. The fluid resistance is small. The ball valve has the smallest fluid resistance among all valves. Even the reduced diameter ball valve has a relatively small fluid resistance.
2. The thrust bearing reduces the friction torque of the valve rod, which can make the long-term operation of the valve rod stable and flexible.
3. The valve seat has good sealing performance. The sealing ring made of elastic materials such as polytetrafluoroethylene is easy to seal, and the sealing capacity of the ball valve increases with the increase of medium pressure.
4. The valve rod seal is reliable. Because the valve rod only rotates without lifting, the packing seal of the valve rod is not easy to be damaged, and the sealing capacity increases with the increase of the pressure of the medium.
5. Because PTFE and other materials have good self lubrication and small friction loss with the ball, the service life of the ball valve is long.
6. The bottom mounted valve rod and the convex step at the head of the valve rod prevent the valve rod from ejecting. If the valve rod seal is damaged by fire, the convex step can also form metal contact with the valve body to ensure the valve rod seal.
7. Anti static function: a spring is set between the ball, valve rod and valve body to export the static electricity generated during the switching process.