Hello,
I may have misinterpreted some of the intent of the original poster when they said they were harvesting from a project - at the time, I read that as taking information from modelled elements, not necessarily project setting. You would be correct in that this doesn’t address the pipe settings.
PipeSegments don’t appear to have much exposed through OOTB nodes, you’ll have to dip into some Python for this. This Autodesk thread and this Dynamobim thread should help point you in the right direction.