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  1. Zul78289

    different schedule between run and branch pipe for tee? is it possible?

    Dear all, pls help me with this case. is it okay to have a tee with this specification (tie-in case) : 1. run pipe size 16" (existing line) with Sch XS 2. branch pipe size 14" (new line) with Sch 40 3. design temperature 360 C (Steam MP) 4. design pressure 18 bar 5. pressure rating class #300...
  2. Zul78289

    Top & Side Stab of New Branch Connection

    Dear all, pls help me because im new in tie-in issue. do you know any standard which rules about top or side stub in a new branch connection? we want to change the orientation of the new branch from top-stub to side-stub in order to minimize the construction work. another reason we want to...
  3. Zul78289

    best practice to validate caesar II report

    Dear all, Thank you so much for the answer. But if any cases that the project specification not stated any provisions about maximum displacement either on displacement report or restraint summary. Is there any standard do you know that regulate this maximum displacement and load on restraint...
  4. Zul78289

    best practice to validate caesar II report

    Thank you RVAmeche, "restraint are adequate (steel/concrete/whatever is strong enough, not excessive movement, etc)", is there any best practice for reviewing the safest displacement distance for Dx,Dy,Dz,Rx,Ry,Rz so we can ensure that the value of displacement is safe? thank you
  5. Zul78289

    best practice to validate caesar II report

    Dear all piping stress engineers, i hope we all in good condition. i want to ask, is there any best practice can we take to review displacement allowable range (not stress) that occur on piping system and the load on restraint of the piping system for caesar II report review activity? thank...
  6. Zul78289

    Insulflex vs Armaflex

    Dear all engineers, I wonder what is the main difference between insulflex and armaflex insulation? what parameter should we consider to choose the best insulation? btw, this insulation will be applied to air conditioner pipe and drain. thank you for your explanation. warm regards
  7. Zul78289

    Is it feasible to do piping internal coating on site?

    Dear Mr. Littleinch, yeah definitely right, our concern is how to maintain the idle of the flare pipe and stack for 3 years in our planning. the 2 options like i said, do pipe preservation like internal coating but we must do it on site because of the pipe already sent. second option by sealing...
  8. Zul78289

    Is it feasible to do piping internal coating on site?

    Dear all, Thank you for the responses. Mr. Ax1e, just to confirm so the most consideration is about the quantity of pipe and it is more costly but it is possible to the internal coating on site yes? your answer is very clear for me and very comprehensive. Mr. LittleInch, that's my second...
  9. Zul78289

    Demountable Flare Concept Using Derrick Structure

    Dear all, I hope you guys in a great conditions all. I want to ask a little bit about demountable flare stack. If in a derrick structure have installed 2 flare stack, is it possible to do disassembly one of the stack while the other flare stack is operating? or the demountable design only to...
  10. Zul78289

    Is it feasible to do piping internal coating on site?

    Dear all engineers, on our project we already ordered pipe with 78" size in service to flow gas to a new flare stack. but cause of some condition, we must idle the pipe and stack until 3 years from now. the flare stack is installed to a derrick structure along with another new flare stack but...
  11. Zul78289

    strainers mandatory in pump upstream

    Dear all, thank you so much with all the responses. I have study case when a centrifugal pump with duty as Deisohexanizer Reboiler Pumps, it flows treated naphta from bottom product of Deisohexanizer to a Furnace and it circulating so on. My question has the same topic which is permanent...
  12. Zul78289

    strainers mandatory in pump upstream

    Dear all, thank you for your response. it is so helpful. Dear MrDGrayPPD, Your answer about start up activity that makes me initiate this question. in one of my project case, a strainer installed on pump suction with 60 mesh and it result so many debris which is we have to clean it very often...
  13. Zul78289

    strainers mandatory in pump upstream

    Is it strainers mandatory to be installed before pump suction? What standards regulate this strainers on pump suction?

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