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  1. PVnew80

    Switzerland and PED

    Added to that I think switzerland actually uses an equivalent called the Pressure Equipment Ordinance (SR 819.121) which is an equivalent to the PED hence compliance with the PED will suffice but dont quote me on that!
  2. PVnew80

    Switzerland and PED

    As I understand it legally it is not a requirement as the PED is only obligatory within the EU, in my experience though most clients still ask for it. Remember the PED is a directive not a design code though.
  3. PVnew80

    S32750 pipe fittings Div.1 (Super Duplex)

    Does anyone know if there is a code case for S32750 that permits the use of SA-815 fittings or has anyone had any dealings with this before. We have one for S32760 but can't find anything for 32750.
  4. PVnew80

    External pressure (vessel)

    Search "you tube pressure vessel external pressure" and you'll see an example of some failures due to "external pressure". Should give you an idea of what you're dealing with!
  5. PVnew80

    FEA Flange Study

    Thanks guys, you're right Corus i should have said cyclic symmetry not axis! Out of interest I had a go at running a study on promechannica using a 60deg section and applying the relevent flamge loads and the results were much more as I'd expect them to be, that said I've managed to get all the...
  6. PVnew80

    FEA Flange Study

    here is second imagehttp://files.engineering.com/getfile.aspx?folder=36562fb7-8103-4c75-b89a-28de5a37247d&file=FEA1.JPG
  7. PVnew80

    FEA Flange Study

    I recently asked a customer for a verification that their custom Flange would be safe to use at a designated pressure - they responded by supplying me with an FEA study that included the following screen shots - see attached. I'm far from being an FEA expert (infact rarely ever used it) but to...

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