Is possible to weld an Appendix 2 Integral Flange dirextly to the shell 1

[u236]

Is possible to weld directly to the shell an Integral flange calculated with Appendix 2?
My question is because generally is possible to weld s Long Welding Neck (ASME B16.5) flange to the shell. My question is when I have a "non standard" welding neck (Bolt circle/... different from standard), can I weld it to the shell as along welding neck standard?

Thanking all for the cooperation!

 

[SnTMan]

Possible? Yes, it is possible.

Permitted by Code? Generally speaking, if a thing is not prohibited, it is permitted.

Regards,

Mike

The problem with sloppy work is that the supply FAR EXCEEDS the demand

 

[u236]

Thank you SnTMan,
But what I have to do?

So I have to calculate a Welding neck in Appendix 2 and after that I have to study it as a coupling on the shell? What about g0?
I don't see any figure in appendix 2 that allow me to weld a flange with a "long hub" directly on the shell.
I read in appendix 2 that the integral flanges can be directly forged in the nozzle is this what allows me to do it?

Thanking al for the cooperation,

 

[david339933]

Fig. 2-4 (6), (6a) and (6b) are all integral WNF.
Also, see definition of g0 and tn.

 

[u236]

Thank to all I understood.
I have to study the flange as Integral LFange with Appendix 2 and I have to check the nozzle as a nozzle to the shell.

 

[SnTMan]

Yes

The problem with sloppy work is that the supply FAR EXCEEDS the demand