PT Location on Weld ASME Sec VIII DIv. II

[DeathRay009]

Hi all,

We are currently in the process of ordering a div. II heat exchanger from a vendor. As per table 7.2 of ASME Div. II, some welds require PT/MT inspection. The code however fails to mention if the PT/MT is to be done on either root pass or final pass or both. This is where we are disagreeing with our vendor since he want to do PT on root pass only.

Your expertise in this regard is requested.

 

[r6155]

ASME is clear.

7.4 EXAMINATION OF WELDED JOINTS
7.4.1 NONDESTRUCTIVE EXAMINATION REQUIREMENTS
7.4.1.1 All finished welds shall be subject to visual examination in accordance with 7.5.2.
7.4.1.2 All finished welds shall be subject to nondestructive examination depending on Examination Group selected in 7.4.2 and the Joint Category and Weld Type as defined in 4.2.
7.4.1.3 All welding shall be subject to in-process examination by visual examination at the fit-up stage and during back gouging