Section VIII Pressure Boundary Scope
Section VIII Pressure Boundary Scope
(OP)
Can a branch pipe nozzle that is welded to a larger run pipe be considered external piping and not be included in the geometrical scope of the vessel as stated in U-1(e)(1)?





RE: Section VIII Pressure Boundary Scope
RE: Section VIII Pressure Boundary Scope
Branch pipe welded to run.
My question: Can the first circumferential joint be the joint that connects the branch to the run?
RE: Section VIII Pressure Boundary Scope
RE: Section VIII Pressure Boundary Scope
RE: Section VIII Pressure Boundary Scope
RE: Section VIII Pressure Boundary Scope
Personally, from a fabricator standpoint, I will not run external nozzle load calculations (again, not a COde requirement) on any nozzles other than the main process connections only. No vents, drains, relief connections, etc.