This article elaborates the structural feature and operating principle of the high performance stopvalve and to introduce the calculative formulas of working movement of the globe disk.
阐述了高性能截止阀的结构特点及工作原理，介绍了球形阀瓣工作行程的计算公式。
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Many applications require gate, globe and stop-check valves to use gearing to reduce the hand wheel rimpull and thus allow one man to manually seat or unseat the valve.