Flange parameters for Design of Loose Ring Flanges to ASME Sec VIII Div 1. 1

[DK44]

While designing Loose Ring Flanges to Fig 3(a) of ASME Sec VIII Div 1 Appendix-2, with a backside fillet only of say 8 mm (equal to mating Shell Thickness), how to adopt go, g1 and h parameters. Note of ASME is not clear.

 

[SnTMan]

DK44, why would you think those values are relevant for a loose flange? (Hint: they are not)

Regards,

Mike

The problem with sloppy work is that the supply FAR EXCEEDS the demand

 

[DK44]

Dear Mike,
Thank you for the clarification.
ASME could have specified at the foot note that for Loose ring flanges of figure (3a), go = g1 = h = 0 or not applicable, for clarity.

 

[TGS4]

DK44, you said

ASME could have specified at the foot note that for Loose ring flanges of figure (3a), go = g1 = h = 0 or not applicable, for clarity.

Forget about ASME as some nameless/faceless entity toiling away in obscurity. ASME is all of us. If you think that this is the right thing to do, then volunteer to help make the changes.

Clicking on your member information shows that you are in India. There is an International Working Group for Section VIII in India.

Get involved. Help. Make a difference rather than complaining.

 

[DK44]

Thank you TGS4 for your remarks.
Apologise for the inconvenience if any.

 

[DK44]

SnTMan.
I just found from Dennis Moss Book, it is shown that for design of Loose Ring Flanges go, g1 and h are considered as Shell Thk, Fillet leg + Shell Thk and Fillet height respectively. Does it meet code requirements?
Pl see attachment.

 

[SnTMan]

DK44, I suggest you carefully review Appendix 2 closely for the differences between integral, loose and optional type flanges.

Regards,

Mike

The problem with sloppy work is that the supply FAR EXCEEDS the demand