Expansion bellows design as per ASME Sec VIII Div 1 App-26

[aspa]

I am designing expansion bellows as per App-226 of ASME Sec VII Div 1, when I saw the calculations I got confussed, it requires many dimensions to proceed. Can any one expain the steps in design of expansion bellows?

thanks

[FATHI]

..there are worked examples in ASME VIII div.1..try to follow the example with the text..then do calculation with Excel or better with mathcad..

The problem are the curves..

Good theory about expansion joints is given in a standard called EJMA..I hope someone has a copy ?

[Paldex]

EJMA std link is available in this reputed forum....