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  • Users: andyecho
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  1. andyecho

    UK fabricator first D1.1 welding job

    Hi I work for a company undertaking first works to D1.1 (Aramco requirement). We normally weld to ASME IX or EN 15614 We are welding skid bases of which a typical corner weld is as attached (CJP with back gouging - single bevel groove weld 4 P99 2020 Ed). S355 J2 material Am I correct that 1)...
  2. andyecho

    API 650 - 5.10.5.2 units & angle ring

    Hi I have a query regarding unit of required area given by equation in 5.10.5.2 I have a very small tank design to API 650, diameter = 3m height = 4m If I use units for equation, D (m), p (kPa) (value 1.87), Fa (N/mm2/ Mpa) (value 160) I get a required area of 0.08mm2 Can this be correct...
  3. andyecho

    obtaining U stamp

    I work for uk vessel fabricator - ISO 9001 and PED certified. We are looking at obtaining U stamp and would appreciate comments on the difficulty of this and how long such certification takes. We generally sub contract design, NDE (though I am qualified mech eng and have done many vessel...
  4. andyecho

    Nozzle loads blast condition

    Hi A question concerning peoples experience about combined stress limits for local loadings due to attached piping. I am undertaking with a colleague a piping analysis for which blast loads have been specified. As is usual the terminations at the vessel have maximum loads specified by the...
  5. andyecho

    Head buckling Appendix 1-4

    Firstly, apologies for originally posting as a reply to thread 794-71353 instead of starting a new thread, can you delete an incorrect reply? my question there seem to be a number of discrepancies in (f)(1) in my copy of code 2001 A03 can anyone clarify ? subsection d) I assume 'T' in...
  6. andyecho

    API2000 vent capacity calculation

    Hi I would welcome any insight into how to calculate the capacity of a manway used for emergency relief. Situation - I was originally asked to calculate counterbalances for vents to be added to existing tanks - hinging and couterbalancing of the manway, (requested by UK HSE). They have now...
  7. andyecho

    PED Allowable stresses

    Hi I would like to here of other peoples' experience on the use of PED design stresses , ESR 7.1.2. At present I use these stresses and the required joint coefficients only for shell internal pressure calculations, as these are the only general membrane stresses. For local load,external...

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