阀门是PN64,法兰是PN63，为什么？

icasqs · 发表于 2020-11-27 16:47:06

阀门Z41W-64R,配套的管法兰是PN63的压力等级，按照对阀门型号的解读，应该是64公斤压力的，但为什么不是配套64公斤的法兰呢？查了一下HG20592，GB9113，GB9131,都没发现有PN64的法兰，那么，这个PN64的阀门怎么来的？有人了解过这些来历吗？另外，现场的PN63法兰确实能配上PN64的阀门。

GKW123456 · 发表于 2022-11-7 15:12:38

phyllis 发表于 2020-11-27 17:02
没办法较真的事，你要把PN64的阀门上到PN16的法兰上才遇鬼了呢！
公称压力命名的差别！各有各习惯！ ...

学生的敢死队风格的是法国

GKW123456 · 发表于 2022-11-7 15:11:44

icasqs 发表于 2020-11-27 17:02
谢谢楼主的回答，问了一下，说PN64是很早就出现的一个等级，PN63是后来才出现的，估计是替代PN64的，因有 ...

啊手动阀打发打发

GKW123456 · 发表于 2022-11-7 14:36:17

phyllis 发表于 2020-11-27 17:02
没办法较真的事，你要把PN64的阀门上到PN16的法兰上才遇鬼了呢！
公称压力命名的差别！各有各习惯！ ...

风格化风格化风格化风格化

GKW123456 · 发表于 2022-9-30 09:05:57

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kakak · 发表于 2021-4-13 09:00:08

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daihai123 · 发表于 2021-1-8 18:11:15

阀门公称压力和法兰公称压力均来自 GB/T 1048

yue_Moon · 发表于 2020-11-27 17:03:39

一样的我之前替换以前老阀门也发现PN64的铭牌开始一脸懵逼现在都是PN63了

YANMUTANSD · 发表于 2020-11-27 17:03:18

应该就是同一个标准，都按照64压力的来

phyllis · 发表于 2020-11-27 17:02:42

没办法较真的事，你要把PN64的阀门上到PN16的法兰上才遇鬼了呢！
公称压力命名的差别！各有各习惯！