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  1. ALO_Inspector

    API STD 653 Annex C - C.2.7.2 Staging Support Connection

    Hi all, I was trying to find out what exactly this item is on the API STD 653 Annex C Tank Out-of-service Inspection Checklist. "C.2.7.2 Staging Support Connection Inspect the condition of the staging support for corrosion." It is listed under C.2.7 Fixed Roof Appurtenances.
  2. ALO_Inspector

    Resources on API 653 Tank Bottom Settlement Surveys

    Hi All! Does anyone have any good resources on Tank Bottom Settlement Surveys such as books, articles, etc. relating to the methodology? API 653 Annex B lays out the requirements and formulas, and there are numerous articles on the theory behind the concepts, but I am looking to gain more...
  3. ALO_Inspector

    AIR-COOLED HEAT EXCHANGERS (FINFANS); "Flat Diameter" on U1

    Hi y'all, I'm an Inspector in Oil & Gas and i specialize in RBI on refinery equipment. For inventory calcs i have to put in the dimensions of equipment and i've noticed on U1s for air cooled heat exchangers (finfans), under the dimensions for the header boxes there is "Flat Diameter" & length. I...

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