Hello friends,

I am trying to design special flanges ( more than 30"dia) per ASME & referring to taylor forge method. In this there are notations for Flange OD ,A, radial distance 'E' & 'R', hub length 'h' & hub dimensions g0 & g1.
since we are designing such a flange, how do i calculate these dimensions?

anticipate an early reply.

thanks & regards,
manoj

please refer to flange design in ASME APPENDIX-2 or DENNIS R MOSS (PRESSURE VESSEL DESIGN HANDBOOK)

thanks Gopi.

I am referring to the TaylorForge document as well. . If we refer to Denis Moss, we see that notations d,V & F have the same description. what is the diffecrence between them? & how do we calculate thickness 't' ?

do you have a spread sheet for this ?

thanks & regards,
Manoj

please go through the section 2-7 fully. there are figures in that section to calculate the factors you are asking.

Gopi,

I am trying to calculate value for alpha = t*e+1. what do i consider as 't'.

please let me know.

thanks for your response.

regards,
manoj

Manoj,
Assume a number and check whether stress+stiffness conditions are met. If they are met with a big margin, you can reduce the thickness and recalculate. If they are not met, you have to increase the thickness and recalculate. It's a recursive procedure- try different numbers until you find one that satisfies your design and manufacturing (because of some standard thickness, for example).

hope this helps

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Konrad Anikiel

Thanks Konrad.

Are 'V' & 'F' the same? both are mentioned as hub shape factors for integral flange.

Also, Can i send you the calculations of the flange to verify if they are correct?

regards,

Manoj

Manoj,
In English, you read a book from its beginning. In the beginning of Appendix 2, you have a paragraph 2-3 Notation . Find out what is V and what is F. It also tells you where it is defined. You can't know what is in the book without reading it!

Please, don't send me anything, I really don't have time to check your work. Sorry.

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Konrad Anikiel