Pneumatic valve and plug valve of a type is the same, only it's shut down parts of a sphere, the sphere rotates around the body center line to achieve the opening and closing a valve.
气动球阀和旋塞阀是同属一个类型的阀门，只有它的关闭件是个球体，球体绕阀体中心线作旋转来达到开启、关闭的一种阀门。
The function of intermission valve in intermission convey system and main technical requirements of sphere core are introduced. The key process for sphere core's making is studied.
简要介绍了间歇阀在间歇式输送装置中的作用以及球面阀芯的主要技术要求，探讨了球面阀芯关键部位的加工工艺。
It consists of pneumatic piston actuator and the composition of O-type ball valve, valve core sphere using cylindrical hole.
它由气动活塞式执行机构和O型球阀组成，阀芯采用圆柱形通孔球体。
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