Rolled Angle Flange Desing

[jkate]

I'm looking for some help to determine the size and quantity of stainless steel bolts for a flanged joint as shown in the attachment. The flange is for joining the head and body of a non-code pressure filter. The head and body flanges are rolled leg out from 2"x2"x3/8" 304L stainless steel angle and has an 75A durometer o-ring for sealing. the vessel internal pressure is 50 psi, hydrotest pressure of 65 psi. The vessel OD is 54" Any help or guidance would be greatly appreciated.

Thank you.

 

I don't think you should be asking a forum to do flange connection design, Code or not.
I will say that torqueing of stainless steel studs is problematic due to low yield strength.


"Everyone is entitled to their own opinions, but they are not entitled to their own facts."

 

[r6155]

50 psi is not allowable without any pressure vessel code, you must select one.

Regards
r6155

 

[KevinNZ]

If you can not calculate the bolt load. then how were you able to calculate the strength of flanges? 50psi in a 54" vessel is a lot of force pushing the flanges apart.
A code calculation should be used for bolts and the flanges.

 

[SnTMan]

Not commenting on the flange itself, but O-rings are generally considered self-energizing gaskets, bolting is required only to resist the hydrostatic end force. See, for example, ASME Sec VIII, Div 1, Appendix 2.

Regards,

Mike

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