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  • Users: Naidooru
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  1. Naidooru

    P8 themocouple to attach to B31.3 P5B heater pipe

    Hi all, Please advise on the following. for all reference this is in accordance with B31.3 2012 I have a furnace tube of material specification P5B The user needs to attach a thermocouple via fillet weld of 3mm to the outside of the tube of which the material is a P8 stainless steel. The table...
  2. Naidooru

    Meaning of "open to atmosphere" as quoted from B31.3

    Hi all, Please advise on the meaning of open to atmosphere. Scenario: If i have built a drain line with two spools. One is a flanged on both ends and the other flanged on one side with an open end on the other that goes into a drainage system. Question: If the two of them are bolted to an...
  3. Naidooru

    PD5500 Vessel bottom dome to be patch repaired

    Hi all, I have a vessel that was constructed within the PD5500 criteria. It has been in service for many years and is a rubber lined vessel due to service reasons. With the rubber lining failing we have to repair the corroded area with a window patch repair. If i use NBIC & PCC-2 to do this...
  4. Naidooru

    GTAW process regarding change in filler metal

    Hi all, Please help with the following understanding. As per QW 404.14 and the essential variable table in section IX of ASME for GTAW process the addition and deletion of filler metal constitutes a requalification. If for example I weld a 304 pipe using a 308 electrode/filler can i then...

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