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Recent content by hniaboujemaa

  1. hniaboujemaa

    Operating a pipe above the design pressure

    Thanks guys for your valuable information.
  2. hniaboujemaa

    Operating a pipe above the design pressure

    Hi guys, Given that the pipe has been tested @ 1.5xDP, what will be the impact on operating this pipe above the Design pressure.. Thanks
  3. hniaboujemaa

    Fire sizing for wetted vs unwetted vessel area...

    Thanks don1980 for your valuable information. In my case, I'm having a bloiler feed water vessel with a desaerator in the head. The vessel is 9' ID with a normal water level in 6'-9''. Thanks
  4. hniaboujemaa

    Fire sizing for wetted vs unwetted vessel area...

    Hi, what is the dirrefence of using wetted vs unwetted area calculation approch while calculating the required RV capacity for a vessel ? Thanks
  5. hniaboujemaa

    MAWP vs DP

    Hi, What is the difference between the MAWP and DP (Design Pressure)? Thanks
  6. hniaboujemaa

    ASME CAPACITY FOR A PSV ?

    Thanks don1980 for your valuable info
  7. hniaboujemaa

    ASME CAPACITY FOR A PSV ?

    What is the definition of ASME capacity for a given PSV ? Thanks
  8. hniaboujemaa

    Liquid flow through a vapor trim PSV?

    Hello, "" Where liquid certified valves are specified, the sizing method for certified relief valves (refer to API Std 520 Part I) should be used. This ensures a more accurate size determination, avoids oversizing and thereby minimises the probability of chatter. If chatter is a problem, the...
  9. hniaboujemaa

    isolation valves under relief valves

    I'm currently working in this issues with our current client. In my previous at the refinery, we didn't have such isolation valves and to be honnest as per my experience, these valves are important basicaly for PSV maintenance. In the past I have seen making unit shutdown for a PSV leaking or...
  10. hniaboujemaa

    Why PSV are leaking while in service ??

    Interesting, moltenmetal ! Thanks for sharing this
  11. hniaboujemaa

    Why PSV are leaking while in service ??

    Thanks guys for your feedbacks. Mouss
  12. hniaboujemaa

    Why PSV are leaking while in service ??

    Any though ? Regards.
  13. hniaboujemaa

    Rated vs Actual vs Design rate ?

    Thanks CJKruger for your clarif the design and actual are quite clear but the rated one is still not. regards,
  14. hniaboujemaa

    Rated vs Actual vs Design rate ?

    Hi guys, Any thoughs about the difference between rated / actual / design rate for PSV, I have seen many definitions through API and ASME. Thanks in advance :-) Mouss
  15. hniaboujemaa

    Snall size PSV or non API PSV

    Thanks guys for your feedback, @sheiko : Here some clarif to the following: 1/ Your are dealing with existing PSV but you want the method to size them. Yes Sir, the question is to review & validate the existing one ! 2/ Later you talk about specifying the PSV while before you wanted to size...

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