1 - For an average refinery or production carbon steel pressure vessel, regarding the clips for platforms and ladders, clips for pipe supports, rings for insulation, davits and other external attachments welds , What is the most extended practice weld examination method: MT (magnetic), UT...
Regarding the foundation construction, to set the anchor bolts properly, What is the minimum vertical vessel diameter for which a base plate template (wood or steel) is required?.
I've heard that small vessels don't require templates, but What does mean "small"?
Regards, EAJG