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Recent content by UliR

  1. UliR

    order specification

    Gents, thanks a lot for your replies, very helpfully Uli
  2. UliR

    order specification

    Dear all, currently I`m working on a revision of our material order lists. Can anyone help me how to word correctly for fittings and flanges so that the supplier is able to deliver the material I want w/o questions or mistakes For example if I order a welding neck flange 2" 150lbs A182F321 RF...
  3. UliR

    Gate valve: solid or flexible wedge

    Hi Jim, you are right, I found a catalogue from Valvosider with pictures from wedges. They differ 4 types of wedges: - solid, one piece - flexible, one piece with a cut - split, two pieces riding on a ball in the middle - parallel, connected with a spring Now I have the explanation I was looking...
  4. UliR

    Gate valve: solid or flexible wedge

    Thanks gerhardl this was a helpful answer. An additional answer for my question I received from another source. A flexible wedge used for our services is a non-coated metal type seated on a ball. This has the advantage of guaranteed sealing of both sides of the seat. It is used in petrochemical...
  5. UliR

    Gate valve: solid or flexible wedge

    Thanks gerhardl, sorry for beeing less detailed. More detailed question: Why exists such wedges? Which processes or fluids use solid which use flexible wedges? Is this due to closeness, density, viscosity, temperature, corrosion, abrasion...? best regards UliR
  6. UliR

    Gate valve: solid or flexible wedge

    Dear all, what are the reasons to use solid or flexible wedges in chemical service for gate valves. I only found that at small sizes I have to use solid (<NPS 4) NPS 6 and large shall have a one pice flexible wedge. Why?? Thanks UliR
  7. UliR

    Reinforcing Pad plate required?

    Gents, thanks for your replies, they were helpfull for my planning Best regards UliR
  8. UliR

    Reinforcing Pad plate required?

    Is there a requirement in ASME Code to use reinforcing pad plates at nozzles > 2&quot;? I'm planning a pressure vessel in Stainless Steel Dia 3m, pressure 11 barg. Thanks for your replies Regards UliR
  9. UliR

    V8.1; Design History into Drawing

    Does anybody know how to implement the entries of the design history as text or tag into a drawing. It seems there might be a way via mdl or vba. Are there known solutions? Best regards UliR
  10. UliR

    API 650 Thickness of bottom

    Hello IFRs, thanks for your fast and helpfull reply. Greetings from Cologne in Germany UliR
  11. UliR

    API 650 Thickness of bottom

    Hello everybody, I would like to know the minimum thickness of the bottom plate of an athmospheric storage tank. What does API 650 say? Thanks for any reply UliR
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