Process Flow / Instrumentation Drawings P&FD / P&ID - PNWS-AWWA

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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

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

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

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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 / Instrumentation Drawings19

How A P&ID is Set UpLocal control is shown hereDwg # for the nextdrawing in the processDwg # for the previousdrawing in the processRemote control & monitoring is shown hereProcess flow diagram isshown herePhoto captionPhoto captionVersion - 1.0, January 2019Process Flow / Instrumentation Drawings20

A P&ID Should Include: Instrumentation and designations Mechanical equipment with names & numbers All valves & their identifications Process piping, sizes & identificationVersion - 1.0, January 2019Process Flow / Instrumentation Drawings21

A P&ID Should Include: Miscellaneous – vents, drains, special fittings,sampling lines, reducers & increasers Permanent start-up & flush lines Flow directionsVersion - 1.0, January 2019Process Flow / Instrumentation Drawings22

A P&ID Should Also Include: Interconnections references Control inputs and outputs, interlocksInterfaces for class changes Seismic category Quality level Annunciation inputsVersion - 1.0, January 2019Process Flow / Instrumentation Drawings23

A P&ID Should Also Include: Computer control system input Vendor and contractor interfaces Identification of components and subsystemsdelivered by others Intended physical sequence of the equipmentVersion - 1.0, January 2019Process Flow / Instrumentation Drawings24

A P&ID Should Not Include: Equipment rating or capacity Manual switches and indicating lights Primary instrument tubing and valvesPhoto captionVersion - 1.0, January 2019Process Flow / Instrumentation Drawings25

A P&ID Should Not Include: Pressure temperature and flow data Elbows and similar standard fittings Extensive explanatory notesPhoto captionVersion - 1.0, January 2019Process Flow / Instrumentation Drawings26

Photo captionVersion - 1.0, January 2019Process Flow / Instrumentation Drawings27

P&IDsWork With the Process NarrativesProcess narrative is the text descriptionof the process, associatedinstrumentation, monitoring & control: Operating set points Describes the equipment Decision trees Manual operation Describes the process Automatic operationVersion - 1.0, January 2019Process Flow / Instrumentation Drawings28

Who Uses P&IDs?YOU DO! When: Planning a project Troubleshooting whenproblems arise Writing a job safety analysis(JSA) Lockout before a repair ormaintenance Process hazard review Training new employeesPhoto captionVersion - 1.0, January 2019Process Flow / Instrumentation Drawings29

Graphic from KCWTDVersion - 1.0, January 2019Color can help understandingProcess Flow / Instrumentation Drawings30

Break TimeVersion - 1.0, January 2019Process Flow / Instrumentation Drawings31

What The Parts Tell Us – Title BlockImages from KCWTDVersion - 1.0, January 2019Process Flow / Instrumentation DrawingsOptional text here32

AbbreviationsPhoto captionVersion - 1.0, January 2019Process Flow / Instrumentation Drawings33

Instrument IdentificationImages from KCWTDVersion - 1.0, January 2019Process Flow / Instrumentation Drawings34

Line LegendPhoto captionVersion - 1.0, January 2019Process Flow / Instrumentation Drawings35

Tag NumbersPhoto captionVersion - 1.0, January 2019Process Flow / Instrumentation DrawingsOptional text here36

Interface SymbolsPhoto captionVersion - 1.0, January 2019Process Flow / Instrumentation DrawingsOptional text here37

Construction StatusPhoto captionVersion - 1.0, January 2019Process Flow / Instrumentation DrawingsOptional text here38

Valve SymbolsPhoto captionVersion - 1.0, January 2019Process Flow / Instrumentation Drawings39

Gate SymbolsPhoto captionVersion - 1.0, January 2019Process Flow / Instrumentation Drawings40

Actuator SymbolsPhoto captionVersion - 1.0, January 2019Process Flow / Instrumentation Drawings41

Mechanical Equipment SymbolsPhoto captionVersion - 1.0, January 2019Process Flow / Instrumentation DrawingsOptional text here42

Primary Element SymbolsPhoto captionVersion - 1.0, January 2019Process Flow / Instrumentation DrawingsOptional text here43

Miscellaneous SymbolsPhoto captionVersion - 1.0, January 2019Process Flow / Instrumentation Drawings44

Functional Logic DiagramsPhoto captionVersion - 1.0, January 2019Process Flow / Instrumentation Drawings45

Header(Analog continuous)(Discrete on/off)Photo captionVersion - 1.0, January 2019Process Flow / Instrumentation Drawings46

Instrumentation IdentificationPhoto captionVersion - 1.0, January 2019Process Flow / Instrumentation Drawings47

An ExampleAlki CSO Treatment PlantSodium Hypochlorite System

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ExamplesVersion - 1.0, January 2019Process Flow / Instrumentation Drawings

ExamplesVersion - 1.0, January 2019Process Flow / Instrumentation Drawings

ExamplesVersion - 1.0, January 2019Process Flow / Instrumentation Drawings

ExamplesVersion - 1.0, January 2019Process Flow / Instrumentation Drawings54

ExamplesVersion - 1.0, January 2019Process Flow / Instrumentation Drawings55

ExamplesVersion - 1.0, January 2019Process Flow / Instrumentation Drawings56

ExamplesVersion - 1.0, January 2019Process Flow / Instrumentation Drawings57

ExamplesVersion - 1.0, January 2019Process Flow / Instrumentation Drawings58

ExamplesVersion - 1.0, January 2019Process Flow / Instrumentation Drawings

ExamplesVersion - 1.0, January 2019Process Flow / Instrumentation Drawings60

ExamplesVersion - 1.0, January 2019Process Flow / Instrumentation Drawings61

ExamplesVersion - 1.0, January 2019Process Flow / Instrumentation DrawingsOptional text here62

ExamplesVersion - 1.0, January 2019Process Flow / Instrumentation Drawings63

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Sludge Dewatering Centrifuge No.1

FV 17BG011

FV 17BG011

PE 17B013

FV17BA011 / P17BA011

FV17BA011 / P17BA011

FV17BA011 / P17BA011

PE 17BA011

FE 178D011

FV 178B011

Identify what is ineach circle and whichtable is used to findthe information

Identify what is ineach circle and whichtable is used to findthe information

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Questions, Comments andSuggestions?Kyle Kihs PNWS-AWWA Executive Directorkkihs@pnws-awwa.orgLoren Searl TCC Chairlsearl@lsearl@spokanecity.orgPrepared by the Training CoordinationCommittee, PNWS-AWWA

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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