Flaw detection after pipeline welding
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The equipment is frequently upgraded technically or its valves are repaired, and sometimes the pipes are rewelded. Is it required by regulations or national standards to perform RT on the welded areas? Which national standard is it? Could some expert tell me?
It depends on the design drawings of your original device. .
Please reply with the corresponding floor number, so that the other party can see it and engage in communication. As I understand it, the drawings specify the NDT requirements for welds.
The answer above is correct; as an addition, there are the technical specifications SHT 3417-2007 for welding high-alloy furnace tubes in petrochemical tubular furnaces
So many standards! It’s so tiring to look for them! ! Where is the original design usually mentioned? I also searched for a long time without finding any relevant text! ! ! !