Dear Experts
Greetings!
I have hot tap welding in my scope of work, According to P&ID the hot tap is coming under the design code B31.3.
The Hot tap welding requirement are as follows as per the client specification- ADNOC Group.
The CONTRACTOR/VENDOR shall follow procedures and qualifications specified in DGS 6300-001- WELDING AND NDE OF PIPING SYSTEM (Based on Section IX) for On-Plot Piping and DGS 6300-004- Welding and NDE of pipeline for Off-Plot Piping- .
Welders shall be qualified in accordance with DGS 6300-001 for On-Plot Piping and DGS 6300-004 for Off-Plot Piping.
For Off-plot pipelines, both the procedure and the welders should be qualified using a full-scale simulation of the connection, in accordance with API 1104 or equivalent COMPANY‟S specification.
All the Hot tap sub contractor's proposing API 1104 based WPS since considering the service welding requirement.
Now I am confused which welding code has to be followed. Request for yours kind advise on the same.
Regards
SANDEEP K SREEDHAR
https://materials-welding.blogspot.com/
https://www.linkedin.com/groups/122787
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