ASME vs. ANSI B16.5 flanges 2

[snoel371]

Can anyone provide proof that ANSI B16.5 doesn't exist anymore and should be replaced with ASME B16.5? I know that the words ASME and ANSI are used synonomously with each other but is this correct.

Thanks!

 

[vpl]

This is an excerpt from the forward of ASME B16.5, 2009 version:

... Following approval by the Standard Committee and ASME, approval as an American National Standard was given by ANSI on April 7, 1988, with the new designation ASME/ANSI B16.5-1988.
...
The 1996 Edition was approved by ANSI on October 3, 1996, with the new designation ASME B16.5-1996. ...

Patricia Lougheed

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[snoel371]

Thank you! So technically ANSI B16.5 doesn't exist anymore and ANSI approved the new designation of ASME.

 

[eadwine]

To confuse the issue even more, there used to be ASA which morphed into ANSI. In the past few years, ANSI has made a handoff to ASME on some standards, so yes, B16.5 can correctly be called either ANSI or ASME depending on the publication date of the document. Now, ASME may be morphing into some other acronym somewhere down the road. Fun stuff, Huh? "Who's on first?"

 

[DSB123]

eadwine,
You would not be correct in calling up/specifying ANSI B16.5 flanges. The correct flange standard is ASME now and has been since 1996 yet there are still "pipers" who are still using the ANSI designation. How many years does it take for the change to sink-in? Not getting at you eadwine just a general "whine/observation".

 

[eyec]

the latest addenda goes even further in changing many ANSI to ASME designations

 

[JLSeagull]

ANSI may still exist but ASME maintains the machanical engineering standards. My list of remaining ANSI standards includes Z4.4 sanitation if field and temporary labor camps, Z129.1 hazardous industrial chemical precautionary labeling and Z400.1 MSDS preparation.

 

[jte]

If these flanges are being used on B31.3 piping through the "listed components" clause, then, well, they have to be ASME B16.5 which is listed in B31.3 Table 326.1. There is no mention of ANSI B16.5 in B31.3.

While we're at it, how long will it take for folks to start designating flange classes the same way B16.5 has for the last 30 or so years? That would be Cl-150, not "150#" or "150# Class".

Time to get a beer out of my icebox.

jt