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Recent content by r6155

  1. r6155

    Can Service Pressure Exceed Design Pressure?

    @ LS-SMS This is the concept when the thickness adopted is much greater than that required by the design pressure. Now, this pressure vessel has added value. Read UG-99(c) again and try to understand why it is mentioned in UG-99.
  2. r6155

    Can Service Pressure Exceed Design Pressure?

    Example Design pressure: 100 psi Corrosion: 0 required t= 0,05” adopted t= 0,25” MAWP: 500 psi Why not read UG-99 (c)?
  3. r6155

    Appendix 2 Figure 2-4(11) integral

    No "not required." It's impossible back gouging.
  4. r6155

    Appendix 2 Figure 2-4(11) integral

    "2-4(11) refers to Figure UW-13.2 sketches (m)": NO See sketch (n)
  5. r6155

    Appendix 2 Figure 2-4(11) integral

    "back-gouging on the root of the welding" ????!!! "back-chipped" ????!!! What??
  6. r6155

    Appendix 2 Figure 2-4(11) integral

    Yes, Its design is full penetration, integral flange.
  7. r6155

    Double rail GMGC - PCC-1&WRC538

    A drawing is better.
  8. r6155

    External Pressure Stiffner Ring

    Be careful (OP) only refers to external pressure. E=1 without RT. 100% RT does not guarantee the absence of leaks. 100% RT does not replace leak testing.
  9. r6155

    Shell forming method with low out of roundness for thin shell

    How do you plan to make a cylindrical shell that fits perfectly with the head if you don't have the head yet?
  10. r6155

    TEMA DEU/CEU Heat Exchanger - Connection Challenges & Analysis

    The blind threaded stud hole is essential for thick walls. The stud is shorter and only has one nut. My experience: Reactor PV (nuclear): 76 M 220 studs, L = 2500 mm, 850 kg each.
  11. r6155

    Overtightening a bolt beyond its recommended bolt load.

    I agree 100%. with CWB1
  12. r6155

    Fatigue - Nozzle Inside Corner Radius

    "...a generous radius on the inside corner of the nozzle..." This is very important in the manhole, in all situations. ALWAYS! Obviously!
  13. r6155

    TEMA DEU/CEU Heat Exchanger - Connection Challenges & Analysis

    This equipment requires rigorous detailed manufacturing analysis by an experienced team. Using the internet is not recommended at this time. I have never used popular calculation programs; I use my own. Be careful. Example: Avoid welding lifting lugs.
  14. r6155

    External Pressure Stiffner Ring

    RT 100% the butt weld and 100% PT the fillet weld. More information is required to confirm the above: general dimensions, service, material, design pressure / temperature.
  15. r6155

    TEMA DEU/CEU Heat Exchanger - Connection Challenges & Analysis

    1) TEMA is a standard, not a code. 2) The 2 3/8" stud bolt is included in ASME B1.1, no problem. 3) The stud bolt (blind threaded hole), or whatever you prefer to call it, is clearly defined in ASME VIII. Please read it. 4) Do you think diaphragm seal is suitable for FV design?
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