Is ANSI flange equal to ASME flange 3

[ITBT]

Hi,

Wish to kown the difference btw ANSI weld neck flange and an ASME flange. Can anybody help? A lot of thanks!

 

[unclesyd]

Yes kander There is a 22" class 300 flange.

http://www.texasflange.com/Dimensioncutsheet.htm

 

[NozzleTwister]

Kander,

Like the others say, there is a 22" Class 300 flange. But it's not covered by AMSE B16.5 (or even ANSI before the designation change)

This flange is covered by standard MSS-SP-44.

It's a common mistake that people think all flanges up to 24" are per B16.5. The 22" size isn't as you have found out.

I hope this helps.


NozzleTwister
Houston, Texas

 

[GenB]

then it can not be used unless a code caqse or excemption in the ASME Code,
GB

 

[kander]

Thanks guys, I've got the info I need.