ASME VIII DIV.1 CODE interpretation 1

[engineermat]

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.

 

[metengr]

Review UW-14 in Section VIII, Div 1.

 

[CodeRef]

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

 

[GenB]

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

 

[CodeRef]

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

 

[GenB]

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

 

[vesselfab]

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

 

[Bria529]

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

 

[metengr]

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.