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  1. LupusLupis

    BOLTUPprocedure for high temperature service

    Hi people, I've opened this thread because I did not find a proper discussion about this matter. I have to prepare a Boltup procedure for an equipment in 304H Asme B31.3 with design temperature 760°C pressure 350Kpa standard flange Asme B16.5 24" 300# with spiral wound gasket with thermiculite...
  2. LupusLupis

    ASME B 31.3 PAR 304.7.2

    Well it's quite standard dor us, maximum size for my company is equal tee 120" just we'd like to save raw material to build the tee 64" using FEA or proof test but we are not sure Asme B31.3 allow it considering the tee as per unlisted component. G.
  3. LupusLupis

    ASME B 31.3 PAR 304.7.2

    Good morning Sir, I'd like to know for a equal TEE (fittings) 64" if it's possible to design Asme B31.3 according to the unlisted component paragraph 304.7.2 using proof test Asme B16.9/MSSSP75 or FEA Asme VIII div.2 sec.5. Reason is redoucing the body thickness of component against design by...
  4. LupusLupis

    ASME VIII D1 & D2

    Good morning all, there is a question regarding "limits of a pressure vessel" with welded nozzle (not flanged with the piping) according to paragraph U-1(e) should be to the next circumferential weld but a collegue ask how to solve the question if there is an elbow inserted to the vessel? Have...
  5. LupusLupis

    Asme B16.9 fittings proof test vs FEA results

    The following guidelines are used from many engineers here around. Applied the MAWP of equivalent pipe on equal TEE model (using a starting plate thickness 1.5times of pipe tickness), used ASME VIII.Div.2: 1-Mesh as per fig. 5.A.7 2-SCL around the branch on TEE considering a nozzle on a...
  6. LupusLupis

    Asme B16.9 fittings proof test vs FEA results

    Ok I know tha matter look not so clear I try to be explain better step to step, I am sorry If it will be a bit long but I see I have no other way, this is the way of company not my choice I just have to comply their rules: 1-When traders got offer for a tee, they get from client only geometry +...
  7. LupusLupis

    Asme B16.9 fittings proof test vs FEA results

    vpl: Point is not to mix codes (of course every one have different philosophy) but to compare results of different calculation and test as I described, I have to prepare a relation and describe results, just I need a general confirmation (maybe someone with a specific experience in this matter)...
  8. LupusLupis

    Asme B16.9 fittings proof test vs FEA results

    To clerify: FEA analysis was performed with ANSYS 14 (meshing with sweep option/quad) and postprocessing results with Von-Mises linearized SCL near croch section (as shown in Asme VIII D.2 part 5), Membrane and Membrane+Bending are imposed to be < 1.5 * admissible stress (in this case admissible...
  9. LupusLupis

    Asme B16.9 fittings proof test vs FEA results

    Hope someone is interested in this matter, I add result of my calculations body/wall thick increment % for straight tee 20" 30mm wall thick: A31.8, 157% - A31.3, 153% - EN10253-2typeB 120% - FEA 100% - A16.9, 33%
  10. LupusLupis

    Asme B16.9 fittings proof test vs FEA results

    Hi all, I am requested to perform FEA analysis on TEE 20" equal ASME B16.9 (40mm tick body/30mm thick wall) company want to redouce body-tickness/wall-tickness ratio as per proof test Asme B16.9. The point is that every FEA analysis I've performed show that the ratio is worse than tee tested as...
  11. LupusLupis

    ANSYS and ASME VIII Div.2 linearized stress

    Hi all, I have a to verify a nozzle on a cilindrical shell (internal pressure only) using ANSYS 14 and apply ASME VIII Div.2 (5.2.2.2) rules: Pm - general primary membrane stress Pl - local primary membrane equivalent stress Pb - primary bending equivalent stress (Pl + Pb) - primary membrane +...
  12. LupusLupis

    ASME U1 STAMP

    Thank you james, so for example: If I disegn my vessel as per Div.1 except the thickness of a dished cover where I use a beam bending/shear formula (NOT UG34 Div.1) and I verify the ideal vonmises stress with the division 2 intensity factor * allowable stress ASME II-D Tab.1A, I cannot perform...
  13. LupusLupis

    ASME U1 STAMP

    Hope somebody can help me: I need to know if it's possible to perform the ASME U1 STAMP on a vessel with some parts design as per ASME VIII division 1 other parts ASME VIII division 2.
  14. LupusLupis

    Quick Opening Closure ASME VIII D.1 #2500

    Thank you for help dmac but I already contact many QOC suppliers and they replied that are not able to supply this QOC with ASME U stamp, maybe I have to ask for a clamp type QOC.
  15. LupusLupis

    Quick Opening Closure ASME VIII D.1 #2500

    Hope somebody can help me to fix a problem, I got request to supply a QOC "bandlock type" size 40" to be tested to 600bar ASME VIII D.1 UG35 design and U stamped. Every time i try to calculate it with FEM analysis it shows that in critical sections VON MISES stress it's about 3 or 4 times the...
  16. LupusLupis

    QUICK OPENING CLOSURE ASME VIII D.1 2500#

    WELL I DID MISTAKE TO POST THIS REQUEST IN STRUCTURAL ENGINEERING THREAD, I AM SORRY FOR THIS, FOLLOW MY QUESTION: Hope somebody can help me to fix a problem, I got request to supply a QOC "bandlock type" size 40" to be tested at 600bar ASME VIII D.1 UG35 design and U stamped. Every time i try...
  17. LupusLupis

    QUICK OPENING CLOSURE ASME VIII D.1 2500#

    Hope somebody can help me to fix a problem, I got request to supply a QOC "bandlock type" size 40" to be tested at 600bar ASME VIII D.1 UG35 design and U stamped. Every time i try to calculate it with FEM analysis show that it's impossible to stay under the ASME allowable stress (I use ASTM A105...
  18. LupusLupis

    Pig Trap Launcher: Kicker line size

    Good morning people, this is the 1st time I write here and hope to find help. I am going to design a pig lancher for spheres and pig tool 32", this is a 2 kicker lines trap, client suggest to use both nozzle 12" for pig and spheres, one collegue suggest to use 6" to move the pig tool and 12"...

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