Position of socket welds

[ThomasWald]

Hello,

i want to weld four sockets on the hemispherical head(ø30"). the distance to the middle of those for sockets is 19".
so its more than 60% of the diameter.
what measures have to be made if i dont want to increase the thickness of the hemispherical head?

thanks up front for your answers.

greetings
thomas

 

[DSB123]

Simply all you need to do is show that what you want to do meets the requirements of the Code!!!