Third, pneumatic switch ball valve advantages 1, small fluid resistance; 2. Simple structure, light weight and small volume; 3. The operation is very convenient and the opening and closing are very fast, because his power source uses compressed gas, and the pressure is generally 0.2 to 0.8Mpa, which is relatively safe; 4. The maintenance is quite convenient; 5. The application range is very wide. The diameter is generally from a few millimeters to several meters, and it can be used in both vacuum and high-pressure environments. Compared with manual and turbine rotating ball valves, pneumatic switch ball valves can be configured with large diameters. The current pneumatic switch ball valves have been widely used in petroleum, chemical, atomic energy and other departments, And people's daily life. 　　　　

The current content inside the pneumatic ball valve is reduced, so that the current can be reduced and static electricity can be derived. The role of the valve stem will also change again. First, it can prevent special movement during mechanical operation. On the other hand, it will also improve the sealing degree of the equipment while pushing the valve stem, so that materials can be better protected in it, ensuring that the internal pressure will not be released, and reducing the friction between the bearing and the valve stem. In addition, modern lubricating materials will add some grease lubrication to the valve body surface, thus reducing the friction between the two and extending the service life of the ball valve.