1. Thrust bearings reduce stem friction torque, ensuring smooth and flexible long-term operation.
2. Anti-static function: Springs between the ball, stem, and body discharge static electricity generated during operation.
3. Due to the excellent self-lubricating properties of materials like PTFE, friction loss with the ball is low, resulting in a long service life for pneumatic ball valves.
4. Low fluid resistance: Pneumatic ball valves have the lowest fluid resistance of all valve types; even reduced-bore pneumatic ball valves exhibit very low fluid resistance.
5. Reliable stem seal: Because the stem only rotates and does not move up and down, the stem packing seal is less prone to damage, and the sealing capacity increases with increasing medium pressure.
6. Good seat sealing performance: The sealing ring, made of elastic materials like PTFE, is easy to seal, and the sealing capacity of the pneumatic ball valve increases with increasing medium pressure.
7. Low fluid resistance; full-bore ball valves have virtually no flow resistance. 8. Simple structure, small size, and light weight.
9. Tight and reliable. It has two sealing surfaces, and the sealing surface materials of ball valves widely use various plastics, resulting in good sealing performance and achieving a complete seal. It is also widely used in vacuum systems.
10. Easy to operate, quick opening and closing; only a 90° rotation is needed from fully open to fully closed, facilitating remote control.
11. Easy to maintain; the ball valve has a simple structure, and the sealing rings are generally movable, making disassembly and replacement convenient.
12. When fully open or fully closed, the sealing surfaces of the ball and seat are isolated from the medium, preventing erosion of the valve sealing surfaces during medium flow.
13. Wide range of applications; applicable to diameters from a few millimeters to several meters, and from high vacuum to high pressure.
14. Due to the wiping effect during the opening and closing process, ball valves can be used in media containing suspended solid particles.
15. High machining precision, expensive; not suitable for use at high temperatures; if there are impurities in the pipeline, the valve can easily become clogged, preventing it from opening.
