The new regulations eliminate GC3; the re-inspection standards for the originally designed GC3 pipelines remain in effect

2021-02-24View Original

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Our company designed GC3 pipes in 2017 in accordance with the GB20801.5-2006 standard; the weld inspection level for those pipes was grade V, which involved visual inspection only. With the new standard, GC3 has been eliminated, and inspections are now carried out according to the GC2 standard, using a 5% radiographic inspection rate – and it was found that all welds were fully penetrated. At the time of delivery, all items passed the visual inspection according to GC3 standards as well as the pressure testing. What should be done in case such problems arise?

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The new regulations eliminate GC3; the re-inspection standards for the originally designed GC3 pipelines remain in effect

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