Determine thickness of groove weld type SET-ON/SET-IN nozzle


The type of groove nozzle and thickness determine shall detail in the welding summary and request for NDT.

ASME IX, QW-403.16:
LEFT PHOTO: Groove weld of SET-IN nozzle shall be based on the shell, head or pipe run O.D.

RIGHT PHOTO: Groove weld of SET-ON nozzle shall be based on the nozzle or branch pipe O.D.