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Pressure Vessel with an Eccentric Reducing Cone Shell

Pressure Vessel with an Eccentric Reducing Cone Shell

Pressure Vessel with an Eccentric Reducing Cone Shell

(OP)
I have a pressure vessel 36" diameter shell with an eccentric cone reducer to 16" diameter with a 16" weld neck flange.  The reducuer is rolled plate.  Does anyone know the design procedure for eccentric cone reducing shells?  I was approaching this as a concentric reducer on one side and a straight shell on the other side.  The code only refers to concentric cone, common axis, redcing shells.  Any ideas?

Thanks,
Going Bonkers   

RE: Pressure Vessel with an Eccentric Reducing Cone Shell

Are you designing this to any particular pressure vessel Code, or not?

RE: Pressure Vessel with an Eccentric Reducing Cone Shell

See ASME B&PV Code, VIII-1, UG-36(g).  ...and Figure UG-36(e)

RE: Pressure Vessel with an Eccentric Reducing Cone Shell

(OP)
Yes, ASME BPVC 2010 VIII DIV. 1, Appendix 1-5.  Internal pressure 1440 psig @ 130 degrees F.

RE: Pressure Vessel with an Eccentric Reducing Cone Shell

(OP)
Thank you, Tom Barsh.  That's it!  I have been looking right at it without it registering.  Thanks again for the "push" in the right direction!

Bonkers

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