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Cause analysis of internal and external leakage of pneumatic cut-off valve
The author: Time:2021/2/5

切斷型球閥部分故障主要表現(xiàn)為閥門的內(nèi)漏和外漏原因分析如下所示:
  1、對于外漏主要表顯為動密封點的上端面壓蓋易漏,閥體的兩靜密封點也會導(dǎo)致外漏。
  2、閥體內(nèi)部聚結(jié)較多的物料造成閥門開關(guān)不到位。
  3、對于內(nèi)漏主要表顯為閥座磨損嚴(yán)重導(dǎo)致的(軟密封閥座與全金屬閥座兩種) ;球體磨損腐蝕嚴(yán)重;球體榫槽及和它相連連接件有無扭曲變形損壞;

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