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P&ID interpretation

This course teaches Piping and Instrumentation Diagram (P&ID) interpretation, covering symbols, design standards, drafting rules, associated documents, and estimation techniques for process plant design, construction, and maintenance.

INSTRUCTOR: Fernández, I.


PRICE: 1200 €

About this course


This course covers interpreting and developing Piping and Instrumentation Diagrams (P&IDs). Topics include P&ID definition, applications, equipment and valve symbols, control loops, and specific design considerations. The course also addresses standards for P&ID development, drafting rules, and associated documents like Process Flow Diagrams (PFDs) and Utility Flow Diagrams (UFDs). Estimation techniques using P&IDs for budgeting purposes are also discussed. The course aims to enhance understanding of P&IDs for design, construction, maintenance, and operation of process plants.



Piping basics


10 hours / week



What you will learn

  • Introduction
  • Piping and Instrumentation Diagram (P&ID) – Definition
  • Applications of the P&ID
  • P&ID Interpretation
    • Equipment symbols
    • Pipe line number
    • Flow direction arrows
    • Other symbols
    • Valve symbols
    • Specialty items symbols
    • Control loops symbols
    • Terms found in a P&ID
  • Standards for P&ID development
    • ISO 10628 Diagrams for the Chemical and Petrochemical Industry
  • Drafting rules for developing P&IDs
    • Symbols sizing
    • Streams: inlet and outlet
    • Minimize line turns
    • Minimize trims
    • P&IDs are not constructive
    • Lines and symbols width
    • Sheet Size
    • Crossing lines
    • Assigning the correlative line number
    • Drawing equipment internals and nozzles
  • Documents Associated with the P&ID
    • Process Flow Diagram (PFD)
    • Utility Flow Diagram (UFD)
    • Lines designation table – lines schedule
    • Equipment list
    • Equipment datasheets, static and rotating
    • General arrangement equipment drawings (vendor drawings)
    • Materials Selection Diagram (MSD)
    • Plot plan
    • Piping specification or piping class document
    • Instrument schedule
    • Instrument datasheet
  • Estimating using a P&ID
    • Estimating piping quantities for line 6”-PG-A1-1003
  • Conclusion
  • Bibliography
  • Attachments

Frequent questions



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