气动三通球阀开启和关闭

一.开启的时候
1.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。
2.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。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.关闭的过程
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.快要关闭时,球体已在与阀座无接触的情况下旋转了90度。
3.手轮转动,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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