气动球阀与其它种类阀门相比，具有角行程输出扭矩，开启迅速、平稳可靠，适用广泛，以及以下一些优点：
Compared with other types of valves, pneumatic ball valves have the advantages of angular stroke output torque, quick opening, smooth and reliable operation, wide applicability, and the following advantages:
1、止推轴承减小阀杆摩擦力矩，可使阀杆长期操作平稳灵活。
1. The thrust bearing reduces the friction torque of the valve stem, which can make the valve stem operate smoothly and flexibly for a long time.
2、防静电功能：在球体、阀杆、阀体之间设置弹簧，能将开关过程中产生的静电导出。
2. Anti static function: A spring is installed between the ball, valve stem, and valve body to discharge the static electricity generated during the switching process.
3、由于聚四氟乙烯等材料具有良好的自润滑性，与球体的摩擦损失小，故气动球阀的使用寿命长。
3. Due to the good self-lubricating properties of materials such as polytetrafluoroethylene, the friction loss with the ball is small, so the service life of pneumatic ball valves is long.
4、流体阻力小：气动球阀是所有阀门分类中流体阻力最小的一种，即使是缩径气动球阀，其流体阻力也相当小。
4. Low fluid resistance: Pneumatic ball valves have the lowest fluid resistance among all valve classifications, even for reduced diameter pneumatic ball valves, their fluid resistance is relatively small.
5、阀杆密封可靠：由于阀杆只作转动运动而不做升降运动，阀杆的填料密封不易破坏，且密封能力随着介质压力的增高而增大。
5. Reliable valve stem sealing: As the valve stem only rotates without lifting, the packing seal of the valve stem is not easily damaged, and the sealing capacity increases with the increase of medium pressure.
6、阀座密封性能好：采用聚四氟乙烯等弹性材料制成的密封圈，结构易于密封，而且气动球阀的阀封能力随着介质压力的增高而增大。
6. Good sealing performance of the valve seat: The sealing ring is made of elastic materials such as polytetrafluoroethylene, which is easy to seal in structure. Moreover, the sealing capacity of the pneumatic ball valve increases with the increase of medium pressure.
7、流体阻力小，全通径的球阀基本没有流阻。
7. The fluid resistance is small, and full bore ball valves have almost no flow resistance.
8、结构简单、体积小、重量轻。
8. Simple structure, small size, and light weight.
9、紧密可靠。它有两个密封面，而且球阀的密封面材料广泛使用各种塑料，密封性好，能实现完全密封。在真空系统中也已广泛使用。
9. Tight and reliable. It has two sealing surfaces, and the sealing surface material of the ball valve is widely used with various plastics, which has good sealing performance and can achieve complete sealing. It has also been widely used in vacuum systems.
