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  • Users: mectub
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  1. mectub

    Pipe Deflection using CAESAR

    Hi everyone, i know that if i want to have the deflection number, i must use a node at interest point, but when i'm checking a model a maximum deflection is one of my goal, so is there a way in CAESAR to set a max deflection or max bending stress in order to get a warning?. What if i want to...
  2. mectub

    B31.3 hydrotest code check

    Hello everyone i'm doing an stress analysis using HYD case.I would like to know why a piping system do code stress check and the other dont. Both using B31.3 and same HP. Thanks for your help
  3. mectub

    HTRI Shell Geometry Output

    Hi, anyone could help to understand the meanning of this part of the output summary given by HTRI software, when it says (Shell geometry) Series 1 and Parallel 2, i think this is i need 1 row of 2 equipment in parallel. How if Series 2 and Parallel 5?
  4. mectub

    Valve TRIM materials

    Which code defines TRIM materials, i've been searching and found in API 600 a table with basic trim mateials, this is the right one or there is other. API 6D don't mention it neither ASME B16.34. My valve is a 20" gate type API 6D.
  5. mectub

    Check valve located into piggable portion of a pipeline

    ASME B31.4 state as mainline pipelines: all in-line pipeline pipes, fittings, bends, elbows, check valves, and block valves between scraper traps. So it is a good practice to install a check valve (swing check valve)in a pipeline when pigging is required? thanks to all
  6. mectub

    DIFFERENCE ALLOWABLE STRESS BETWEEN PVELITE AND B31.3

    Hi everyone!, i'm using ASTM A516 Gr.70 (under plates and sheets table A-1 B31.3) S=23.3 ksi, to design a vessel, when i check values of allowable stress in PVElite (A516 Gr.70 form:plate) , i found 20 ksi @ 100F, could you help me to understand why is that,please.. Besides PVElite list another...
  7. mectub

    AFT IMPULSE RESULTS INTERPRETATION

    Hi everyone, does the AFT Impulse software output shows the overpressure value (just output ?P)or the result include the permanent estatic pressure (P=PO+?P) PO: Operating pressure P: Total pressure ?P: Increse of pressure due to water hammer
  8. mectub

    Optimum Wall thickness selection

    Could you help me to decide which wall thickness is the more appropriate from different point of view (economic, comercial availability, flexibility) for a pipezise 30", calculated thck 0.100". Any one knows prices for pipes, i would like to evaluate cost to make a decision. Thanks in advance
  9. mectub

    Bulk modulus fomula

    Do any one know a formula for direct petroleum Bulk modulus calculation, i had use one from API 1101: K=10^(5.722708-0.00819*API-0.00219*TF) I would like to know if there are another more accurate and recently devoloped. I read here about Caragoe equation but i can find more information...

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