Distance Requirement For Fillet Weld And Butt Weld
Distance Requirement For Fillet Weld And Butt Weld
(OP)
Is there any requirements for the minimum distance between a fillet weld and butt weld on ASME VIII-1 code?
For example: On pressure vessel, there is a reinforcement Pad locating very close to the shell to shell weld seam. If the pad welded, the weld seam will be lapped on the butt weld. Is it acceptable?
For example: On pressure vessel, there is a reinforcement Pad locating very close to the shell to shell weld seam. If the pad welded, the weld seam will be lapped on the butt weld. Is it acceptable?





RE: Distance Requirement For Fillet Weld And Butt Weld
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Thread 228576
RE: Distance Requirement For Fillet Weld And Butt Weld
Also beware; ASME requires additional NDE for butt-weld seams that are going to be covered by a repad. So that takes you back to LWN flanges, as the increased cost of the ALW will be covered by not needing to fab and weld a repad and pay for, and schedule the additional NDE.
RE: Distance Requirement For Fillet Weld And Butt Weld
One caution before running down the "lose the repad" path: Consider that in some cases I've designed repads to be thicker or wider than would be necessary for simple area replacement. Piping loads can push a design towards requiring repads or insert plates over heavy wall nozzles.
jt