行业新闻

原文
Three ball valve works It works as follows: First, open process [Wiki] mechanical [/ wiki] to put pressure on the role of 1 in the closed position, the sphere of the valve stem, pressed on the seat. Turn handwheel, the valve stem is the reverse movement, the bottom of the angular plane so that the sphere to disengage the valve seat. 3 stem continue to enhance the interaction and stem the spiral groove of the guide pin, the sphere began to friction-free to rotate. 4 up to the fully open position, the stem raised to the limit position, the sphere rotated to the fully open position. Second, the shutdown process A closed, clockwise rotation of the handwheel, stem began to decline and make a sphere out of the seat begins to rotate. 2 Continue turning the handwheel, the valve stem by the spiral groove embedded in its role of guide pins, so that the stem and the sphere at the same time rotated 90 °. 3 near the closed sphere in the case of contact with the seat rotated 90 °. 4 handwheel is turned the final laps, the stem at the bottom of the angular plane mechanical wedge to the oppression of the sphere, so that it closely pressed on the seat, to achieve complete seal.
原文来自：http://www.ballvalve.org.cn

是由上海埃非凯阀门有限公司提供的阀门新闻，中文译文仅供参考，以下提供站内导航搜索：

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译文：
它的工作原理如下：一、开启过程 1在关闭位置，球体受阀杆的[wiki]机械[/wiki]施压作用，紧压在阀座上。 2当逆时针转动手轮时，阀杆则反向运动，其底部角形平面使球体脱开阀座。 3阀杆继续提升，并与阀杆螺旋槽内的导销相互作用，使球体开始无摩擦地旋转。 4直至到全开位置，阀杆提升到极限位置，球体旋转到全开位置。二、关闭过程 1关闭时，顺时针旋转手轮，阀杆开始下降并使球体离开阀座开始旋转。 2继续旋转手轮，阀杆受到嵌于其上螺旋槽内的导销的作用，使阀杆和球体同时旋转90°。 3 快要关闭时，球体已在与阀座无接触的情况下旋转了90°。 4手轮转动的最后几圈，阀杆底部的角形平面机械地楔向压迫球体，使其紧密地压在阀座上，达到完全密封。

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