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2018-11-21View Original

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Reply #22018-11-21
"Sicherheitsventil-Mess测绘探讨"
Reply #32018-11-21
, "UnIch wundere mich, warum es n, Messunginen der Sicherheitsventileen auf den Rohren. Habt ihr gute Methoden, um den Mittelpunktaben zu zu bestimim定 zuen? Gibt es gute Werkzeuge,,,,,, um den richtigen Durchsgang zu zu zuzustustellen?""
Reply #42018-11-21
国标安全阀面心距每个厂家某些规格会不一样,我见过2家的样册A42Y-40 DN200 一家是305*260,一家是300*260,所以能去现场测绘的,最好测绘,不然装不上很麻烦,而且见过一些业主管理不当图纸,数据丢失的。
Reply #52018-11-21
这个是否是一家做错了,加工精度不够,一般应该是一个尺寸,即便各家不一样也没关系,只要他和他自己的样本一致就行,即便差5mm 我不认为会影响安装,管道安装1毫米不差简直太困难了
Reply #62018-11-21
假如是加工精度问题,那其他规格应该也会有差别,但是其他的基本都一样,而且5mm的加工精度差应该是很大很大了把。。。如果业主一直用同一品牌的阀门倒问题不大,就是遇到不同品牌轮着用。。。 虽然管道安装1毫米不差很难,但是个人感觉要做大做强5mm还是太大了。。曾经参加过厂里核电站,军工阀门项目执行,客户派监造来验收的时候抓着几丝的误差不放。。最后搞了大半天才勉强通过。。。

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