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The importance of ball core for pneumatic ball valve
The author: Time:2019/11/22

        球芯對于氣動球閥來說是關鍵件,球表面的尺寸精度達到四級,形狀精度達到八級,表面粗糙度R在0.4以下。安放球芯時,必須用膠布保護其表面,嚴禁磕碰,否則會拉傷密封表面,造成泄漏,并降低密封潤座的使用壽命。

氣動球閥


       由于閥體進口處直徑比球芯端面距小,因此球芯不能水平放入閥體,必須將球芯立著,讓一端先進入閥體內腔,然后將球芯在閥體內腔旋轉90度,使其處于水平位置。因球芯兩端分別有光孔和花鍵孔,所以在安放球芯時,必須注意球芯與閥體裝短軸、傳動軸部分的位置關系。
 

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