ASME VIII-1 welding for internal projection nozzle on standard blind flange

[FPPE]

Hi,

I have a question about the calculation in accordance with ASME VIII-1 for the configuration shown below:



what are the reference paragraphs for the calculation of the standard blind flange with a 4" nozzle inserted as shown in the detail? Being a standard component but modified due to the presence of a hole, it needs to be verified in accordance with the code. Could it be calculated as a slip-on, considering the 4" pipe as if it were the shell of the flange?

Thanks in advance

 

[r6155]

Not a good design.
1) Do not use ring joint with external loads.
2) The welds on the blind flange are insufficient. Read ASME VIII Div 1,
Try another design.

Regards