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Recent content by jrafael95

  1. jrafael95

    Cleanouts are mandatory according to api 650?

    Dear @IFRs and @HTURKAK, thank you both for answering my question. I'm kinda new in this industry and learn so much with you and this forum. Greetings
  2. jrafael95

    Cleanouts are mandatory according to api 650?

    Hello, that's my doubt: Just a hypothetical scenario... If i have a small Diesel tank built according to API 650 (like 6m dia and 6m height),and a 500mm manhole on the shell, can I use the manhole to clean the tank? Do I really need a cleanout door to clean the tank or can i use the manhole...
  3. jrafael95

    API 650 Annex F tank - Roof plate thickness

    Hi Geoff13, thanks for your answer. Thats exactly what i did, found 6.3mm for roof plate thickness. Many thanks for your answers :)
  4. jrafael95

    API 650 Annex F tank - Roof plate thickness

    JStephen, I tried to use the worst joint eff possible, but still got low thicknesses comparated to the method descripted in 5.10.5. I guess you and Hturkak are both right. Really aprecciate your answer. I hope the best for both :)
  5. jrafael95

    API 650 Annex F tank - Roof plate thickness

    Dear @Hturkak, thanks for your answer! Well, I'll use the formula given in 5.10.5.
  6. jrafael95

    API 650 Annex F tank - Roof plate thickness

    Dear all, im designing a tank under api 650 annex F for academic purpose. the roof is cone type (self-supporting) with 9.5º slope Using the equation given in F.6.1 (written below) i got 0.046 mm t = (P x R)/((cos(alpha)*Sd*E) + CA t = (0.363*2.865)/(0.165*137*1) = 0.046 mm here is my data...
  7. jrafael95

    Tank Nozzle

    You need to see what standard the tanks were made. See API 620 and API 650 for advice
  8. jrafael95

    Tank roof repair using BELZONA

    @Dhujarti Sen, thanks for your answer. I'm worried about this practice too. I'll have a meeting with my client and I'll alert him about this practice. If you have some good info about this, could you send to me?
  9. jrafael95

    Tank roof repair using BELZONA

    @HTURKAK: Thanks for the answer! I will get this API RP right now :) @IFRs: Thanks for the answer too :) Will you limit the hole size you going to allow to be patched? My client didn't say anything about this,so , at this first moment, I'll recommend this type of repair for holes that do not...
  10. jrafael95

    Tank roof repair using BELZONA

    @IRFs, I am studying an issue for my client, The issue: My client owns hundreds (literally) of API 650 vertical storage tanks at various fuel terminals nation-wide (not USA!). I need to make several step-by-step procedures (according to API) to standarize the maintenance of these tanks. They...
  11. jrafael95

    Tank roof repair using BELZONA

    @IFRs, thank you for your answer. :) Do you know where I can find any normative recommendation for this type of repair?
  12. jrafael95

    Tank roof repair using BELZONA

    Dear colleagues, Could someone tell me where can I find in API 650 or 653 about tank roof repair using cold work? (for example, BELZONA)
  13. jrafael95

    How to avoid shell buckling during API650 tank repair

    Geoff13, thanks for the aditional info!
  14. jrafael95

    How to avoid shell buckling during API650 tank repair

    @IFRs, this EXACTLY what I was looking for! Thanks a lot. Well, about the calculations, probably another company will do, but I think they will sketch the tank without door sheet in some finite element software and analyze, or just weld some beams on it without calculations. Anyway, when i get...
  15. jrafael95

    How to avoid shell buckling during API650 tank repair

    Dear HTURKAK, thanks again for the answer. Yes, all the tanks have self-supported cone roof and some of them have internal floating roof (gasoline tanks). As I didn't find anything in API 650 and 653 about shell temporary support calculation method, we'll do some calculations and proper...
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