It is a key document for various reviews such as HAZOP, SIL, and operability.ĭuring Operation, you have to maintain P&ID in such a condition that it will show actual plant conditions at any time. P&ID is used to develop the piping layout and prepare bulk material take-off for piping, electrical, instrumentation, and civil. It is used to identify hazardous areas classification, and preparing data sheets of equipment, valves, and instrument. Use of P&ID/PEFS during the EPC phaseĭuring the EPC phase, P&ID is used to develop the individual unit layout. Plot plant is developed considering various inputs from P&ID and physical site location. It is also used to develop EPC contract specifications. P&ID is used to derive the Project capital cost estimates. That means during pre-EPC, EPC, and operation. It is used during the entire life cycle of the plant. That is front-end engineering and design. It is one of the main deliverables of FEED. This means if some system is shown on a single PFD, it may require multiple P&ID sheets to show the same system on P&ID. As said earlier, it is more complex than PFD. P&ID is a graphical representation of the actual process plant using various symbols that represent actual equipment. Gaskets & Spectacle Blinds Expand / Collapse.Pipe Fittings Inspection – Visual & Testings.
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