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Flat shell t-required calculations

Flat shell t-required calculations

Flat shell t-required calculations

(OP)
Can someone guide me to a formula to figure t-required for a rectangular pressure vessel with flat sides (Fin-Fan header box)?  I'm thinking of using the Sect. VIII flat head formula for lack of anything else.  (I'm doing remaining life calculations.)

Thanks!

RE: Flat shell t-required calculations

Well, that would be the code used for an air cooler, if you refer to App.13.
Can you be more specific on what you need to do?

prex
http://www.xcalcs.com : Online engineering calculations
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http://www.levitans.com : Air bearing pads

RE: Flat shell t-required calculations

(OP)
I'm trying to run remaining life calculations.  I need to know the minimum required metal thickness, I just can't seem to find anything as clear as section UG-27 is for cylindrical and spherical shells.  I'll look through appendix 13 more carefully to se if I can find what I need.  

RE: Flat shell t-required calculations

Appendix 13 is where you should be looking for an all welded plug type header box. If it's a coverplate design (e.g. a full removable bolted cover with gasketted joint) then an alternative design is required as I don't believe Appendix 13 covers this.

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