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jt1234's latest activity

  • jt1234
    jt1234 replied to the thread Ring Type Flange from Rolled Strip.
    MHS1988, I did have ring type flange from plate but more that 20 years ago. Lost the detail record. What I can recall is , the long...
  • jt1234
    jt1234 replied to the thread Vessels Manways.
    UG-46 is very clear what minimum size of manway or inspection hole must have. As long as you meet that criteria, your entering of the...
  • jt1234
    jt1234 replied to the thread R Stamping a non-U Stamped Pressure Vessel.
    I am guessing without reading NBIC: "No", not an U stamped vessel by AI, why AI shall approve a "R" stamp. Just repair at your own risk.
  • jt1234
    jt1234 replied to the thread SA-193 Gr.B7M bolt material used in Wet H2S service is not passing requirement of UG44b clause..
    "M" grade is the common industrial practice for wet sour service to prevent stress corrosion cracking. This is also in NACE. Please do...
  • jt1234
    jt1234 replied to the thread Standpipes.
    To make it simple, if there is pressure difference between inside and outside at any "section" of the stand pipe, that section is...
  • jt1234
    jt1234 replied to the thread 'Set-in vs set-on' strikes back!.
    Some people here will need to be educated to understand what "SIF" is before making any unrelated nonsense comments that wasting...
  • jt1234
    jt1234 replied to the thread Bolt Torque and Bolt preload query.
    Don't understand what you guys are talking about, but you have only two choices, using power torque wrench, or bolt tensioner (we use it...
  • jt1234
    jt1234 replied to the thread Unity check in saddle.
    Go to 4th Edition Pressure Vessel Design Manual by Dennis Moss, Procedure 4-11, Design of saddle supports for large vessel, you will see...
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