最后，讨论了怎样把泵控制系统限位的一些方法扩充应用到阀控制系统中去。
It is also discussed that the limitation method used in pump control system can be used in the valve control system.
阀门的启闭位置由行程开关控制，且阀板上设有限位挡块以保证阀板的启闭位置。
There is limit block on the valve disc to ensure the open-close position , which is controlled by the stroke switch.
专业从事代理各种执行机构、台湾的阀门及韩国的定位器、限位开关、电磁阀等相关配套产品的公司。
Specialized agency of the executing agency, South Korea, Taiwan, valves and positioners, limit switches, solenoid valves and other related products company.
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