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  • Users: r6155
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  1. r6155

    Parallel Tailing Beam/Skirt Stiffening Beam Internal Moment Coefficient Kr and Kt

    jigar305 , RadiateurFou Please see Google for videos and photos of vertical PV mounting without welding any lifting/tailing lugs. I worked with Reactor Pressure Vessel (nuclear): no lifting lugs were used
  2. r6155

    factors to be considered for vessels in cyclic service

    Be care. BS 7608.2015 1.2 This BS is not applicable to unfired pressure vessels (See BS en 13445)
  3. r6155

    Flange Joint Live Tightening

    In this example, the nut rotation is not applied for verification: impossible. Ultrasound is applied, compared to the original ultrasonic elongation report.
  4. r6155

    Axial Compressive Stress in Horizontal Vessel

    @ LC-24 You have no experience with this pressure vessel. There are many manufacturing details. I did it a long time ago. Please contact a PV design engineer with experience with DOT CODE. Sorry.
  5. r6155

    Flange Joint Live Tightening

    Elongation control is the best practice, not torque. Checking elongation is easy.
  6. r6155

    Axial Compressive Stress in Horizontal Vessel

    This is a tank trailer. Did you consider DOT CODE?
  7. r6155

    Parallel Tailing Beam/Skirt Stiffening Beam Internal Moment Coefficient Kr and Kt

    Try to avoid lifting / tailing lugs. Contact a transport and erection company.
  8. r6155

    weld line on cap with spot RT-3

    Why don't you read the Code?
  9. r6155

    factors to be considered for vessels in cyclic service

    Avoid lifting lugs, always Fillet weld shall be with a radius No pads for attachments Butt welds shall be flush. UT before cut the plate to the hole for a nozzle. PT in bevel of the hole. Full penetration welds Pressure test UG-99(c) Long welding neck flange instead of reinforcing pads...
  10. r6155

    Support Beam in Skirt Anchor Box

    The photo does not show the lifting lug. We don't know the design of this tower. I'm skeptical about its use if the crossbeams are not level with the base plate. Whenever possible, lifting lugs should be avoided. I worked with a Reactor Pressure Vessel (nuclear): lifting lugs are not used.
  11. r6155

    factors to be considered for vessels in cyclic service

    Read again, slowly.
  12. r6155

    Mechanical properties in heavy thick test coupons.....

    See SA-370 Test Methods and Definitions for Mechanical Testing of Steel Products
  13. r6155

    Support Beam in Skirt Anchor Box

    1) Photo with lifting lug: The beams are used for lifting purposes only. 2) Photo with cross beams: To distribute the total weight to the base (not for lifting)
  14. r6155

    Pressure vessel under negative Pressure

    What is the CODE? Experience in design, manufacturing, and inspection is required to be able to discuss with the manufacturer.
  15. r6155

    Can Service Pressure Exceed Design Pressure?

    Once again, why not read UG-99(c) and try to understand?
  16. 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.
  17. 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)?
  18. r6155

    Appendix 2 Figure 2-4(11) integral

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

    Appendix 2 Figure 2-4(11) integral

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

    Appendix 2 Figure 2-4(11) integral

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

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