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  • Users: Ammrp
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  1. Ammrp

    Using MAOP in lieu of DP for inservice API 570/574 assessment

    Thanks SJones! Yes it is frustrating! Thanks everyone for clearing up the confusion!
  2. Ammrp

    Using MAOP in lieu of DP for inservice API 570/574 assessment

    TGS4, I agree. So is MAOP defined as the pressure where the relief devices are set? I cannot check each pipe as there are thousands of them but I am sure one way or the other they would have a relief attached to the pipe. The software client uses, does not take any of theses consideration...
  3. Ammrp

    Using MAOP in lieu of DP for inservice API 570/574 assessment

    SJones, So you are saying the design pressure is from the pipe specs and not necessarily that specific line design pressure? hmm... interesting... does MAOP include all the possible conditions which the pipe is expected to be exposed to (as considered by the design pressure)? Who and how is...
  4. Ammrp

    Using MAOP in lieu of DP for inservice API 570/574 assessment

    Hi Dhurjati, I am talking about MAOP not MAWP. The point about MAWP is completly understanable because you have excess thickness so you could potentially use that to your advantage. But what I have seen is that an MAOP is used to calculate the required thickness rather than calculating the...
  5. Ammrp

    Using MAOP in lieu of DP for inservice API 570/574 assessment

    Hi Guys, I just started a new job and came across a general practice here in the company which seems wrong to me. We are doing simple integrity assessment and inspection planning for piping. In the software provided by the client it uses MAOP and DP to calculate the Remaining Life(s) then...

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