关闭阀门时, 顺时针转动手柄, 闸板下移至底部, 由于介质的作用, 将闸板压上出口端密封座上,形成较大的密封比压,从而密封。开启闸板时,逆时针旋转手轮,闸板上移,导流孔与通道孔相贯通。随着闸板的上升,贯通孔逐渐加大,至极限位置时,导流孔与管道孔相重合,此时阀门全开。

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When you close the valve gate, roatate the handle clockwise and move the flashboard to the bottom. When moved back the flashboard to the sealed tape in the outlet, it will form a strong sealing strength and finally sealed because of the dielectric.不好意思,就只能翻译第一段,后面的太难了。