Hello fellows,

I have experienced before to use 90 deg. welding tee. I have seen also a study to use the 90 deg. connection since it is favorable in terms of strength considering also the flow in the study, in which this is the reason why lateral connection is normally been the practice.

Anyway, my senior engineer before just multiply the 90 deg. SIF by 2 to be used for lateral and design the piping system accordingly, instead of going thru the pain of complex mathematics.


Warm Regards,