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Recent content by nd222

  1. nd222

    Piping Wall Thickness Calculation

    The reduction in thickness is more prominent in the bends with some thinning taking place in straight section also. The design pressure and temp of the line is 5.5 barg and 188 degC respectively. Thanks all for responding and clarifying.
  2. nd222

    Piping Wall Thickness Calculation

    Hello, Original wall thikness of 28" column overhead line was 10mm. The pipe material is ASTM A 672 GRB60 CL12. After 20 years of operation the inspection has found the wall thickness reduced to 7.8mm and recommends for replacement of the line in next plant Turn Around. The calculated wall...
  3. nd222

    Concentric Tank

    MFJewell, what is the purpose of double wall if containment dyke is also there for those fuel tanks? Am I missing something here? IFRs, Thanks for providing the photo, like to know the service fluid of the tank. As LittleInch mentioned I am looking for any example or design standard/guideline...
  4. nd222

    Concentric Tank

    Hello, I have a query related to storage tank design (related to hydrocarbon storage tanks of 3000 to 5000 KL capacity in Refinery complex) If we construct concentric storage tank with annular space in between.. does that allow us to go away with Dyke/Bund where there is not enough space...
  5. nd222

    Nitrogen Purging in Pipeline

    PIG stands for Pipeline Internal Gauge. Pig is used in the pipeline for Pre-commissioning, Commissioning, during normal operation and Health of the pipeline is also monitored by intelligent pigging.

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