Process Flow / Instrumentation Drawings P&FD / P&ID

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Process Flow / InstrumentationDrawings – P&FD / P&IDIt’s a story told through SymbologyVersion – 1.0, January 2019Prepared by the Training CoordinationCommittee, PNWS-AWWA

Acknowledgements:AuthorButch Perry KCWTD Infrastructure CoordinatorJeff Lundt KCWTD Senior EngineerSymbologyAn 1877 dictionary defines the word as:"the art of expressing through symbols."Content & GoalsTo provide an understanding of what process flow andinstrumentation drawings can tell us about how things work

Outline:Workshop topicsUnderstanding a P&ID Layout- The difference between P&ID and PFD- Symbology- Equipment- Piping that connects the equipment- Lines and instruments used to monitorand control the processVersion - 1.0, January 2019Process Flow / Instrumentation Drawings3

SymbolsKoruTokiHei-Matu

Symbols & Story TellingEarliest forms of communication during the prehistoric period were the Hieroglyphics and cave drawingsVersion - 1.0, January 2019Process Flow / Instrumentation Drawings5

Evolution of SymbolsPhoto captionVersion - 1.0, January 2019Process Flow / Instrumentation Drawings6

The Basics There are standards for symbols:– AutoCAD P&ID ISA – International society of automation– AutoCAD P&ID PIP – Process Industry Practices– AutoCAD P&ID ISO – International Organization forStandardization User defined “unique” symbols Use the symbol guide for the P&ID’s youare reading.Photo captionVersion - 1.0, January 2019Process Flow / Instrumentation Drawings7

Where Can P&IDs Used? Everywhere in our conveyance andtreatment systems:– Operator Training– Developing SOP’s– Process Troubleshooting– Conveyance Information– Storage InformationPhoto captionVersion - 1.0, January 2019Process Flow / Instrumentation Drawings8

Where Can P&IDs Used? Everywhere in our conveyance andtreatment systems:– Chemical feed systems– Hazard monitoring type and location– Sampling type and location– Security– Auxiliary servicesPhoto captionVersion - 1.0, January 2019Process Flow / Instrumentation Drawings9

PFD / P&ID Differences

The Process Flow Diagram Shows the flow of process and theequipment involved in the process. Shows the relationships between themajor components minus the details. Are sometimes used for visitorinformation and new employee training.Version - 1.0, January 2019Process Flow / Instrumentation Drawings11

A PFD should include: Process Piping Major equipment symbols, names andidentification numbers Control, valves and valves that affectoperation of the system Interconnection with other systemsVersion - 1.0, January 2019Process Flow / Instrumentation Drawings12

A PFD should include: Major bypass and recirculation lines Sometimes system ratings andoperational values as minimum, normaland maximum flow, temperature andpressure Composition of fluidsVersion - 1.0, January 2019Process Flow / Instrumentation Drawings13

More Basics Process always flows from left to right The whole process doesn’t always fit onone drawing Drawing numbers on the left side tellswhere the process is coming from Drawing number on the right side tellswhere the process is going toVersion - 1.0, January 2019Process Flow / Instrumentation Drawings14

Version - 1.0, January 2019Process Flow / Instrumentation Drawings15

HeaderPhoto captionPhoto captionVersion - 1.0, January 2019Process Flow / Instrumentation Drawings16

Process Flow DiagramVersion - 1.0, January 2019Process Flow / Instrumentation Drawings17

Version - 1.0, January 2019Process Flow / Instrumentation Drawings18

The Process & Instrumentation Diagram Process & Instrumentation Diagram(P&ID) show what is in the PFD– plus the instrumentation to monitor theprocess– plus how it is controlled. A P&ID shows the relationshipsbetween the all components in thesystem and shows details.Version - 1.0, January 2019Process Flow

The Process & Instrumentation Diagram Process & Instrumentation Diagram (P&ID) show what is in the PFD –plus the instrumentation to monitor the process –plus how it is controlled. A P&ID shows the relationships between the all components in the system and shows details. Version - 1.0, January 2019 Process Flow / Instrumentation .

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The Process & Instrumentation Diagram Process & Instrumentation Diagram (P&ID) show what is in the PFD -plus the instrumentation to monitor the process -plus how it is controlled. A P&ID shows the relationships between the all components in the system and shows details. Version - 1.0, January 2019 Process Flow / Instrumentation .

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