Pneumatic ball valves are available in O-ball valves and V-ball valves. O-type ball valve adopts floating structure, the core is precision casting, the surface is hard chrome-plated, the valve seat is made of reinforced PTFE material, the flow port is the same as the pipe diameter, the flow capacity is great, the flow resistance is very small, no when closed Leakage, generally used as an on-off valve, is especially suitable for high viscosity; V-type ball valve adopts a fixed structure, and a V-shaped slit is formed in the core to cut the fiber-containing and granular medium. According to different process equipment, pneumatic or electric actuators can be selected to form pneumatic ball valves and electric ball valves respectively. Among them, pneumatic ball valves must be equipped with valve positioner electric ball valves if necessary to achieve proportional adjustment. Electronic electric actuators or servos must be selected. Amplifier, etc.

1. The fluid resistance is small, and the resistance coefficient is equal to the pipe length of the same length.

2. Simple structure, small size and light weight.

3. It is close and reliable. The sealing surface material of the ball valve is widely used in plastic and has good sealing performance. It has also been widely used in vacuum systems.

4, easy to operate, open and close quickly, from full open to full off as long as 90 ° rotation, easy to control over long distances.

5, convenient maintenance, pneumatic ball valve structure is simple, the sealing ring is generally active, disassembly and replacement are more convenient.

6. When fully open or fully closed, the sealing surface of the ball and the valve seat is isolated from the medium. When the medium passes, it will not cause erosion of the sealing surface of the valve.

7, a wide range of applications, from small to a few millimeters, up to a few meters, from high vacuum to high pressure can be applied.

8, because the pneumatic ball valve power source is a gas, generally 0.2-0.8MPa pressure, relatively safe. If the pneumatic ball valve leaks, the gas can be directly discharged compared with the hydraulic and electric motors, and it has no pollution to the environment and has high safety.

9. Compared with manual and turbo rotating ball valves, pneumatic ball valves can be configured with large diameters. (Manual and turbo rotating ball valves are generally below DN300 caliber, and pneumatic ball valves can reach DN1200 caliber.)

The pneumatic ball valve works by rotating the valve plug to make the valve unblocked or occluded. The pneumatic ball valve switch is light in weight and small in size, and can be made into a large diameter, reliable in sealing, simple in structure, convenient in maintenance, and the sealing surface and the spherical surface are often closed, and is not easily eroded by the medium, and is widely used in various industries.

The pneumatic ball valve and the plug valve are the same type of valve, only the closing member of which is a ball, and the ball rotates around the center line of the valve body to open and close a valve.