Tubesheet-to-hemi head joint
Tubesheet-to-hemi head joint
(OP)
Dears,
I wonder what's your opinion on applicability of UG-34 to a joint between hemispherical head and a round, flat tubesheet welded into a circular hole in the head? Axis of the tubesheet passes through the center of the head, but is not parallel to axis of the head's skirt. Tubesheet is twice thicker than the head wall.
Thanks
Konrad
I wonder what's your opinion on applicability of UG-34 to a joint between hemispherical head and a round, flat tubesheet welded into a circular hole in the head? Axis of the tubesheet passes through the center of the head, but is not parallel to axis of the head's skirt. Tubesheet is twice thicker than the head wall.
Thanks
Konrad





RE: Tubesheet-to-hemi head joint
This weld joint would most likely would fall under UW-13.
The tubesheet itself may fall under part UHX if it meets the applicability requirements. If not, you may be able to use TEMA formulas.
UG-34 is normally used for the design of flat heads, although it does contain requirements for some of the weld joints.
Regards,
Mike
RE: Tubesheet-to-hemi head joint
Konrad
RE: Tubesheet-to-hemi head joint
It appears to me that your AI is addressing the UG-34 reference found in UW-13(d), which, I agree with you, doesn't apply, as it specifically attachment of heads to shells. As you don't supply specific attachment details I believe that applicable paragraph would be UW-13(e). I concur with SnTMan that UG-34 does not apply in this case.
Regards,
RLS
p.s. be diplomatic in your approach to your AI, believe it
or not, we're not infallible :0)
RE: Tubesheet-to-hemi head joint
My AI is not my enemy. But sometimes he needs some stronger argumentation than I have. It's his job to ask and it's my job to answer.
Konrad
RE: Tubesheet-to-hemi head joint
Good luck,
Mike
RE: Tubesheet-to-hemi head joint
Konrad