Pressure pipelines are changed to the supervision and inspection process
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For equipment upgrades, involving the addition of valves and changing the material of pipes on existing pipelines, is it necessary to first have the design institute issue a change order? And what should be done afterward?
Is it to change the pipe material? If so, proceed with the renovation; the design institute will prepare the relevant renovation documents, and the construction party will be informed – no supervision or inspection is required
To obtain the modification notification, GC1 and modifications with a length greater than 500m also require supervision inspections
GC2 pipeline, originally carbon steel but modified to stainless steel, with a length of around 10 meters.
Yes, it turns out carbon steel was changed to stainless steel