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  1. boilerengineering

    Searching for 1965 ASME Section I Stress Values

    I am beginning review of the re-rating of a 1966 vintage boiler from 300 psig to 350 psig. Per the NBIC, section 3.4.2, I must use the stress values that were in place for original construction., ie,..Edition 1965. Does anyone know how I may obtain a copy of the 1965 Ed. Section I Power Boilers...
  2. boilerengineering

    "S" Stamped Fittings in Section I Piping

    metengr, this is for new construction. but what would be the difference for in-sevvice. thnx
  3. boilerengineering

    Pressure vessel shell calculation

    The best explanation I was given on this matter is simple. If you only know the I.D., as in the case of determining the shell thickness of a drum, you would run the calculation using the inside radius. when determining the required thickness of say a header where the O.D. is already known, use...
  4. boilerengineering

    "S" Stamped Fittings in Section I Piping

    Can anyone please let me know what the rules are regarding "S" stamp or name plate required when installing a flanged "in-line" of flanged "set-on" type interstage attemperator. The ASME Section I code does not specifically address this but am assuming to treat this as a valve whereas the name...
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