The document provides training content on Piping and Instrumentation Diagrams (P&ID) and Process Flow Diagrams (PFD), detailing their purpose, components, and symbols. P&IDs are schematic illustrations that depict the functional relationships of piping, instrumentation, and equipment within process systems, while PFDs illustrate relationships between major system components and process design values. Various aspects, such as identification, tagging, and operational details, are emphasized to facilitate understanding and operation of these diagrams.

1. Industrial Automation Training
P&ID

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Agenda
• P&ID
• P&ID Symbols
• P&ID – Instrument type & Location
• P&ID – Piping & instrument connection symbols
• P&ID – Valves & its identification
• P&ID – Tagging Philosophy & Interconnection details
• P&ID – Computing function identification
• PFD
• PFD Sample

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P&ID
What is a P&ID?
A Piping and Instrumentation Diagram - P&ID, is a schematic illustration of functional relationship
of piping, instrumentation and system equipmentcomponents.
P&ID shows all of piping including the physical sequence of branches, reducers, valves, equipment,
instrumentation and control interlocks. The P&ID are used to operate the process system.
A P&ID should include:
– Instrumentation and identification
– Mechanical equipment with names and numbers
– All valves and their identifications
– Process piping, sizes and identification
– Miscellaneous - vents, drains, special fittings, sampling lines, reducers, increasers and swagers
– Permanent start-up and flushlines
– Flow directions & Interconnectionsreferences
– Control inputs and outputs, interlocks
– Annunciation inputs
– Computer control system input
– Vendor and contractor interfaces
– Identification of components and subsystems delivered byothers

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P&ID Symbols

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P&ID – Instrument type & Location

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P&ID – Piping & instrument connection symbols

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P&ID – Valves & its identification

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P&ID – Tagging Philosophy & Interconnection details

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P&ID – Computing function identification

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P&ID – Computing function identification

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PFD
• What is PFD?
• The Process Flow Diagram - PFD, a schematic illustration of theprocess
• A Process Flow Diagram - PFD - (or System Flow Diagram - SFD)shows
• the relationships between the major components in the system. PFD also tabulate
process design values for the components in different operating modes, typical
minimum, normaland maximum. A PFD does not show minor components, piping
systems, piping ratings and designations.
• A PFD should include:
– Process Piping
– Major equipment symbols, names and identificationnumbers
– Control, valves and valves that affect operation of thesystem
– Interconnection with other systems
– Major bypass and recirculation lines
– System ratings and operational values as minimum, normal and
maximumflow, temperature and pressure
– Composition of fluids

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PFD Sample

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Q&A

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