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Ifc (Issued For Construction) Should Be Before Or After 90% 3D Piping


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#1 ReddeerC

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Posted 18 January 2020 - 06:22 PM

Dear Sir/Madam,

 

I am sort of confused by project schedule in my company: IFC P&IDs should be issued AFTER the 90% 3D Piping Model Review, right?

 

 

Thanks,

 

 



#2 breizh

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Posted 18 January 2020 - 08:10 PM

Hi ,

Please consider this extract of the " The fundamental of piping design" by Peter Smith.

note : Good to check with your peers within your organization .

 

Hope this is helping you.

Breizh

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Edited by breizh, 19 January 2020 - 02:41 AM.


#3 ReddeerC

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Posted 19 January 2020 - 10:53 AM

Good day, Breizh,

 

Thanks for your inputs.

 

So, the IFC P&IDs should be officially issued after the 90% Piping 3D Model Review.

 

How about the control/instrument setpoints on the IFC P&IDs? Process should wait for the issue of IFC Piping Isometrics, finalize the setpoints based on the ISOs, and then issue the IFC P&IDs?



#4 PhilippM

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Posted 19 January 2020 - 12:55 PM

Good day, Breizh,

 

Thanks for your inputs.

 

So, the IFC P&IDs should be officially issued after the 90% Piping 3D Model Review.

 

How about the control/instrument setpoints on the IFC P&IDs? Process should wait for the issue of IFC Piping Isometrics, finalize the setpoints based on the ISOs, and then issue the IFC P&IDs?

I think it's not really possible to give a general rule for that. Often the setpoints are adjusted during commissioning, so there is no point in finalizing them after the isometrics are finished, as they will be changed shortly after anyways (i.e. they were not finalized to begin with).



#5 ReddeerC

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Posted 21 January 2020 - 12:23 AM

Thanks, Philipp,

 

You are right: even if the IFC P&IDs are issued, operations still need to try out and adjust the control setpoints. However, for the engineering design itself, we need a timeline to wrap up the work. 



#6 breizh

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Posted 21 January 2020 - 02:49 AM

Hi ,

To me this should be finalized after commissioning and test run together with the process book (updated).

My view.

Breizh






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