Introduces a kind of sealing device for ball valves, by means of orbital groove, applied the principle of bellows sealing to the production of ball valves.
介绍了一种球阀密封装置，通过轨道槽的作用使波纹管密封的原理在球阀的生产中得以运用。
For compressed air and vacuum, the Numatics poppet valves are ideal for single acting cylinders, air bellows, and vacuum material handling.
压缩空气和真空，纽曼帝克提升阀是适用于单作用气缸，空气波纹管和真空材料处理。
For compressed air or vacuum service, Numatics poppet valves are ideal for use with single acting cylinders, air bellows, and vacuum material handling applications. more…
压缩空气或真空服务，纽曼帝克提升阀是为单动气缸，空气波纹管的理想，和真空材料处理应用。 更多…
For compressed air and vacuum, the NuAmatics poppet valves are ideal for single acting cylinders, air bellows, and vacuum material handling.
压缩空气和真空，纽曼帝克提升阀是适用于单作用气缸，空气波纹管和真空材料处理。
Failure is more common with the screw put on the Bellows Seal Valves threaded stem wear, so that the valve can not close.
比较常见的故障是阀杆与螺套上的丝扣磨损，陶瓷阀门使阀门无法关闭。
Failure is more common with the screw put on the Bellows Seal Valves threaded stem wear, so that the valve can not close.
比较常见的故障是阀杆与螺套上的丝扣磨损，陶瓷阀门使阀门无法关闭。
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