Thank you for pointing me in the right direction, I'll do some more reading.
The reason I am not buying a standard fitting is because I work for a pipe fitting manufacturer, and have been tasked with figuring out how to design reducers as the one I attached. I understand all other dimensions...
I am a cad designer trying to figure out how to find the following dimensions boxed in red.
I understand they must follow the ASME VIII pressure code but I can't seem to find how to get those dims.
Any help would be greatly appreciated..