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What Is P&ID?: To Download This P&ID Is Given at The End of The Page

Piping and instrumentation diagrams (P&IDs) and process engineering flow schemes (PEFSs) are complex graphical representations of actual process plants using symbols to represent equipment. P&IDs show more detail than process flow diagrams (PFDs) and may require multiple diagrams to represent a system shown on a single PFD. P&IDs are developed during front-end engineering and design (FEED) and used throughout the entire life cycle of a plant, including pre-engineering, procurement, and construction (pre-EPC), engineering, procurement, and construction (EPC), and operation. During pre-EPC, P&IDs are used to estimate capital costs and develop specifications for EPC contracts.

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53 views1 page

What Is P&ID?: To Download This P&ID Is Given at The End of The Page

Piping and instrumentation diagrams (P&IDs) and process engineering flow schemes (PEFSs) are complex graphical representations of actual process plants using symbols to represent equipment. P&IDs show more detail than process flow diagrams (PFDs) and may require multiple diagrams to represent a system shown on a single PFD. P&IDs are developed during front-end engineering and design (FEED) and used throughout the entire life cycle of a plant, including pre-engineering, procurement, and construction (pre-EPC), engineering, procurement, and construction (EPC), and operation. During pre-EPC, P&IDs are used to estimate capital costs and develop specifications for EPC contracts.

Uploaded by

Alex Mac
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as DOCX, PDF, TXT or read online on Scribd
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Reading P&ID is a difficult task for those who start their career in Oil &Gas

and similar Chemical Process Industries. Here, I have tried to explain P&ID
and PEFS an easy way.

Piping and instrumentation diagram is also known as Process engineering flow


scheme which is PEFS.

You will learn how to read P&ID and PEFS with the help of the actual plant
drawing. P&ID is more complex than of PFD and includes lots of details. Link
to download this P&ID is given at the end of the page.

What is P&ID?
P&ID is a graphical representation of the actual process plant using various
symbols that represent actual equipment. As said earlier it is complex than
PFD. A single PFD can have multiple P&ID. This means if some system is shown
on single PFD, to show the same system on P&ID, it may require multiple P&ID
sheets.

It is one of the main deliverables of FEED. That is front-end engineering and


design. It is used during the entire life-cycle of the plant. That means during
pre-EPC, EPC and operation.

Use of P&ID/PEFS During Pre- EPC Phase


P&ID is used to derive Project capital cost estimate. It is also used to develop
EPC contract specification. Plot plant is developed considering v

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