Use of SAE Code 62 Flanges on ASME Section VIII Div 1 pressure vessels.....
Use of SAE Code 62 Flanges on ASME Section VIII Div 1 pressure vessels.....
(OP)
thread292-30766: SAE FLANGES
Does anyone do this? How was it qualified? Was it qualified as an Appendix 2 flange?
thanks,
Jay Nesbitt
Does anyone do this? How was it qualified? Was it qualified as an Appendix 2 flange?
thanks,
Jay Nesbitt





RE: Use of SAE Code 62 Flanges on ASME Section VIII Div 1 pressure vessels.....
RE: Use of SAE Code 62 Flanges on ASME Section VIII Div 1 pressure vessels.....
Would you please expand on your comment of the geometery not being consistient with A2?
2-1 SCOPE
(a) The rules in Appendix 2 apply specifically to the
design of bolted flange connections with gaskets that are
entirely within the circle enclosed by the bolt holes and
with no contact outside this circle, and are to be used in
conjunction with the applicable requirements in Subsections
A, B, and C of this Division.
and
These rules provide only for hydrostatic end loads and
gasket seating. The flange design methods outlined in 2-4
through 2-8 are applicable to circular flanges under internal
pressure. Modifications of these methods are outlined in
2-9 and 2-10 for the design of split and noncircular flanges.
So, I am not understanding the geometry limitations, although I am relatively unfamiliar with A2.
thanks,
Jay
RE: Use of SAE Code 62 Flanges on ASME Section VIII Div 1 pressure vessels.....
If it were me, I would argue that the geometry doesn't fit in Appendix 2 and would apply U-2(g).
RE: Use of SAE Code 62 Flanges on ASME Section VIII Div 1 pressure vessels.....
This flange is rectangular, not obround (but we have definately done obround flanges).
The thing is that the self-energizing gasket (O ring) does not require significant bolt load to work (M=0; Y=0), therefore bolts only carry pressure load. IE: number of bolts req'd decreases.
I was out friday. Our A2 expert was checking on this Fri, but he comes in at 8:00. I'll see what he found.
Thanks for your more detailed comments.
Jay
RE: Use of SAE Code 62 Flanges on ASME Section VIII Div 1 pressure vessels.....
thanks for the help.
Jay