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离心泵机封泄漏

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离心式热油泵,温度在200度,经常顺轴漏油,更换几套机封,效果不佳,怀疑轴套上有o型圈质量不行!问一下需要更换什么材料的o型圈?
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200 deg c 不算太高,可优先F4,石墨材质

条件允许采用,全氟可能会更好
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顺着轴套漏,应该是轴套内的密封圈不耐高温或介质腐蚀。根据介质腐蚀情况,换成四氟或其它耐高温的试试。
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最好用石墨材质的,但是不是装在轴套内。
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更换波纹管机械密封。
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这种情况应该是轴套内的O型圈材质的原因,楼主你将O型圈材质换为4F的试一试。(或者直接用4F生料带缠一个密封圈试一试效果如何,如果可行在购买成品4F的O型圈。)
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