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Recent content by Geoff13

  1. Geoff13

    UG-40(c) Contour to Surface

    Since L-7.6 did not calculate where the peak of the head would have been I felt this clarified which of your options to use. Glad you've reached a conclusion.
  2. Geoff13

    Tank Settlement Survey

    Are you just going to keep asking the same question until someone says "surveying isn't required"? Well, that's not me. LittleInch and HTURKAK are on the right track, and very knowledgeable forum members.
  3. Geoff13

    UG-40(c) Contour to Surface

    You should use "... from the top of the existing contour that mates up to the nozzle outside wall ...". If you have access to the 2010 Edition, Appendix L has Example L-7.6 that uses this method. I suspect ASME publishes a separate book of examples now so they can charge an outrageous amount...
  4. Geoff13

    sa-182-f316 <=5 vs sa-182-f316<=5 low stress compress codeware

    The difference can be found in ASME Section II Part D Table 1A Note G5. Your senior is correct to say the low stress option should be used for a blind flange.
  5. Geoff13

    Axial Compressive Stress in Horizontal Vessel

    The additional information is very helpful. However it also rules out me providing much guidance. My experience is foundation supported pressure vessels like you see in the middle of oil refineries. I know nothing about transport vessels. Wow. That's very thin. I'm not surprised the...
  6. Geoff13

    Axial Compressive Stress in Horizontal Vessel

    Mainly questions at this point. Hard to know what's safe to say with so little information. What are your vessel dimensions? Length, diameter, thickness, design temp & pressure? Once the vessel is full how can it temporarily reach 2x load? Why are your supports at the ends? Moving them...
  7. Geoff13

    Div. 1, UG-37, Correction factor "F" not making sense

    Do you have access to a 2010 copy of the Code? If yes, then Appendix L Example L.7.7 is a perfect example of the only nozzle configuration I can think of where F would be useful. Certainly better than any explanation I can think of. The Code has correct values for F so perhaps re-reading...
  8. Geoff13

    Plate marking as per SA-480

    I hate to repeat myself, but why are you expecting ASME marking on an AISI material? If this photo is of an ASME registered vessel / piping / etc. and that's the only marking on the plate then you've got a big problem. --------------------------------------- I've been designing large...
  9. Geoff13

    Plate marking as per SA-480

    Here's some info I found by Googling. If what I say below is wrong that's my poor Googling! Maybe you could try Google? The AISI manual listed chemistry only. They may have included "typical" physical properties, but testing was not required. AISI no longer publishes this manual, however...
  10. Geoff13

    Appendix 2 Figure 2-4(11) integral

    Figure 2-4(11) refers to Figure UW-13.2 sketches [m] and [n] for full-penetration. You PDF is exactly sketch [n]. Assuming you match the dimensions in sketch [n], and do a back-chipped full-pen weld, then it is an integral flange. Edited to change (n) into [n] as intended.
  11. Geoff13

    Plate marking as per SA-480

    If the plate is only marked as being AISI, why are you looking for SA-240/SA-480 markings?
  12. Geoff13

    Can Service Pressure Exceed Design Pressure?

    I believe ASME Section VIII Division 1 clause UG-21 makes it clear that the specified design pressure must be greater than any possible operating condition.
  13. Geoff13

    Storage tank ?pressure dome? - just curious

    The logo is Irving Oil, a Canadian oil company...
  14. Geoff13

    ASME VIII-1 Nozzle Spacing Clash

    I would not be using individual reinforcing plates on each nozzle. I would use a thickened insert (try 2 times tshell) or perhaps a full thickened ring though I'm not sure where the large nozzle on the far side is. I have never used PV Elite so I don't know how to specify an insert like this...
  15. Geoff13

    Thickness Hub at the Small End, g0

    For a loose-type flange g0 is the"thickness of hub at small end" as defined in clause 2-3, so neither of the dimensions in your sketch. See Figure 2-4 Detail (1) or (2). The neck thickness is only considered for optional or integral flanges.
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