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ASME VIII DIV.1 CODE interpretation

ASME VIII DIV.1 CODE interpretation

ASME VIII DIV.1 CODE interpretation

(OP)
Hi,

I need your advice of the ASME VIII DIV.1 regarding the following two issues:

(1) The distance of the circumferential weld seam and nozzle reinforced pad is only 1 inch (Circumferential joint to the fillet joint of the re-pad).

(2) The circumferential weld seam is covered by the reinforced pad. The distance of the circumferential weld joint and the "nozzle to shell joint" is about 1 inch.

What is the code requirement on the above two situations?

Thanks.

RE: ASME VIII DIV.1 CODE interpretation

Review UW-14 in Section VIII, Div 1.

RE: ASME VIII DIV.1 CODE interpretation

Your question lacks detail.
I will make the assumption that your question is related specifically to the measuring of the distance between an opening and a circumferential weld as described in UW-14.
  
UW-14(a) states that openings that have the reinforcement calculations of UG-37 performed on them may be placed in (or near) weld joints without imposing the NDE requirements of UW-14(b) through (c).

UW-14(b) through (c) is specifically referencing openings that are inherently reinforced, more specifically, it is referencing  those openings exempt from UG-37 reinforcement calculations as specified in UG-36(c)(3).

UW-14(d) states that openings that satisfy ONLY the requirements of UG-36(c) (3), must meet the radiography requirements specified.

Given that both of your questions involve a reinforcing pad; this implies to me that calculations per UG-37 were performed UNLESS the reinforcing pad in question is NOT acting as nozzle reinforcement.
 
What does your  AI say?
 

FAQ731-376: Eng-Tips.com Forum Policies

RE: ASME VIII DIV.1 CODE interpretation

seems to me that you must RT 100%  circ. weld location before covering it.
genb

RE: ASME VIII DIV.1 CODE interpretation

GenB,If I were to make that statement, I may be asked to support it with a Reference to a paragraph within the Code...Do you care to share your reference?

FAQ731-376: Eng-Tips.com Forum Policies

RE: ASME VIII DIV.1 CODE interpretation

CodeJackal,
I will review it and advise. pretty bussy these days after little work for six Months, jobs are pouring all of a sudden.
Do not forget Eng practices, there is no other way to help Engineermat
with his Job. I would ask him to take it to his AI and tell us if he/she
will approve it.
I run in the same situation a couple years back and I was approved.
I may not be in the Code, it is the Engineering and AI's decision,
that makes a difference

on the other hand a Code Case will take forever.  
GenBlr


 

RE: ASME VIII DIV.1 CODE interpretation

we automatically radiograph seams that are covered by pads, lifting lugs, even tray support rings and downcomer bars.  We cope external clips with no pads.  If they have a pad, we radiograph

RE: ASME VIII DIV.1 CODE interpretation


Does anyone have information on the temperature and pressure differences for a 150# & a 300# carbon flange with grade 8 studs?  

RE: ASME VIII DIV.1 CODE interpretation

Bria529
First, you should start a new thread and not hyjack an existing one.

2nd - the pressure and temperature rating by Class and working pressure for flanges can be found in ASME B16.5.

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