ASME Section 8 Div 1
ASME Section 8 Div 1
(OP)
I need to fabricate a 25" long vessel with 14" Sch 10 pipe to use it a pilot plant for 2 - 4 months. Maximum operating pressure is 10psig.
A elliptical head is welded to one end of the pipe and a flanged connection at the other end.
IS this an ASME vessel or cane exempt from Section 8 Div 1 requirements? This vessel will have chemical mixture with 145 F boiling point.
Appreciate your response.





RE: ASME Section 8 Div 1
There is also a minimum volume criteria in ASME VIII ... this may exempt you also
MJCronin
Sr. Process Engineer
RE: ASME Section 8 Div 1
Regards,
Mike
The problem with sloppy work is that the supply FAR EXCEEDS the demand
RE: ASME Section 8 Div 1
RE: ASME Section 8 Div 1
Operating pressure is irrelevant to Section VIII Div. 1 scope as well. It is the stamped MAWP which matters. This is what Genetix points out above with the slight correction that a MAWP of 15 psi is out of scope. Exceeding 15 psi puts one into scope. Now, a user can very easily decree in their PO that they want a vessel with a stamped MAWP of 14.9 (just to be clear about the exactly equal to 15 psi thing), even if the calculated MAWP exceeds that.
In addition, Genetix correctly points out that merely not being in the scope does not prohibit the design and stamping. Having said that, I personally recommend against U-stamping pressure equipment which is out of scope.