ASME Pressure Vessel vs Pressure Piping
ASME Pressure Vessel vs Pressure Piping
(OP)
Where does the ASME Pressure vessel code end and the ASME Pressure Piping code begin?
Our vessels have pipe stubs that we weld our piping to. Which code is that first weld subject to?
Steve
Our vessels have pipe stubs that we weld our piping to. Which code is that first weld subject to?
Steve
Steve Mackie
Halifax, NS





RE: ASME Pressure Vessel vs Pressure Piping
If you don't have a copy of either Code book, and based on your post above, the first butt weld off of the nozzle on the pressure vessel falls under B31 Power Piping. The nozzle weld prep is under ASME B&PV Code, Section VIII, Div 1.
RE: ASME Pressure Vessel vs Pressure Piping
jt