Minimum Weld Edge to Weld Edge Distance for Div 2 Cate D Joint
Minimum Weld Edge to Weld Edge Distance for Div 2 Cate D Joint
(OP)
I am looking for some clarity regarding what is the Minimum weld edge to weld edge distace considered.
I have Nozzle welded to Shell and Weld edge to weld edge distance for Nozzle from Head to shell seam is 20 mm.
This is Divison 2 vessel and Nozzle is Self-reinforced.
It is welded as per detail 8 of Table 4.2.10 of Div 2.
My concern is that this WE to WE distace of 20 is okay or should I consider to move nozzle and provide WE to WE distace of 50 mm Minimum? Is there a code minimum requirement?
Please provide your thoughts.
Best regards,
Mechmania
I have Nozzle welded to Shell and Weld edge to weld edge distance for Nozzle from Head to shell seam is 20 mm.
This is Divison 2 vessel and Nozzle is Self-reinforced.
It is welded as per detail 8 of Table 4.2.10 of Div 2.
My concern is that this WE to WE distace of 20 is okay or should I consider to move nozzle and provide WE to WE distace of 50 mm Minimum? Is there a code minimum requirement?
Please provide your thoughts.
Best regards,
Mechmania





RE: Minimum Weld Edge to Weld Edge Distance for Div 2 Cate D Joint
RE: Minimum Weld Edge to Weld Edge Distance for Div 2 Cate D Joint
Hope i am clear now in what i am asking!
regards,
Mechmania
RE: Minimum Weld Edge to Weld Edge Distance for Div 2 Cate D Joint
Which leaves open:
How thick is the material of the end dome and the tank wall?
What kind of weld and weld prep do you intend to use to attach that lower end dome to the tank wall?
In an ideal world you do not want to overlap the two welds at all, and you want to be able to keep their two heat affected zones as far apart as possible.
RE: Minimum Weld Edge to Weld Edge Distance for Div 2 Cate D Joint
Cheers,
gr2vessels
RE: Minimum Weld Edge to Weld Edge Distance for Div 2 Cate D Joint
In my case the Head thickness is 67 mm (MOC:CS) and Nozzle size is 2 inch Self reinforced.
What if I may not be able to move the Nozzle up at this point of time, is there additional NDE i may need to consider?
Or i should not worry about it.
F.Y.I: As i mentioned above this is Div 2 Vessels and nozzle is welded per detail 8 of Table 4.2.10 of Div 2.
regards,
Mechmania