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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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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