Wednesday, December 4, 2019

[MW:30252] WPS of HOT TAPPING

Dear All.

If we want to qualify a WPS for hot tapping on pipeline, we shall apply Appendix B of API1104.
But for hot tapping of piping section for qualification of WPS, which code have to be applied, with regard to ASME IX doesn't mention to in service welding?

Regards

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