Through the redesign and revamp of the valve disk and body of rotary spindle, the technology is simplified, the cost is reduced and a large amount of foreign exchange is saved for our country.

回转接头的阀芯和阀套经重新设计和改造后，简化了工艺，降低了成本，为国家节省了大量外汇。

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Said rotary control disk rotates around the central axle on upper valve body to exchange position with conic valve core, so allowing medium to flow.

上阀体上装有中轴，旋转控制盘绕中轴转动与上下滑动锥形阀芯换位，实现介质流量、流向控制。

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