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Flange standards

2009-02-19View Original

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Hello everyone! Is there a flange standard called GB2556-81?
Reply #22009-02-19
Please search within the forum; if nothing is found, seek help from other users. Generally, the HG20592 standard can be used for flanges
Reply #32009-02-19
Go and take a look on Standard Sharing; if it’s not there, it will be pretty difficult to find something free there. http://www.bzfxw.com/
Reply #42009-02-19
It’s recommended to check on standard websites~ Or just search on Baidu and you’ll find out~:lol
Reply #52009-02-19
GB2556-81 is in the data section; I uploaded it at http://bbs.hcbbs.com/thread-393923-1-1.html. This post was last edited by huqingyu1981 on 2009-2-19 at 16:30.]
Reply #62009-02-22
The standard GB/T 2556-1981, titled \"Shapes and Dimensions of Sealing Surfaces for Pipe Flanges for General Purposes\", has been revoked and replaced by GB/T 9112-1988. GB/T 9112-1988 was in turn replaced by GB/T 9112-2000, which deals with the types and parameters of steel pipe flanges
Reply #72009-02-22
There are people with intentions on the 8th floor! Well done, indeed~
Reply #82009-02-22
Everyone is using hg20592 now
Reply #92009-02-23
GB/T9112-2000 http://bbs.hcbbs.com/viewthread.php?tid=143547&highlight=GB%2FT%2B9112-2000 HG20592-97 http://bbs.hcbbs.com/viewthread.php?tid=6012&highlight=20592 HG20615-97 http://bbs.hcbbs.com/viewthread.php?tid=110072&highlight=20615 ANSI B 16.5 http://bbs.hcbbs.com/viewthread.php?tid=300777&highlight=ANSI
Reply #102009-02-23
This flange has been replaced; whether it’s a national standard flange or one based on chemical industry standards, it’s pretty much the same

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Translated at 2026-07-28 05:15:40

Original: https://bbs.hcbbs.com/thread-393546-1-1.html

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