P&ID Basics

Learning objectives

  • Define PID and discuss its importance to the facility
  • Identify who uses the PID
  • List the types of information typically found on a PID and describe where each of the following is located on the drawing:
    • Title block
    • Main drawing
    • Line schedules
    • Equipment descriptions
    • Issue descriptions
    • Notes
    • Zone numbers
  • Describe a master sheet and identify commonly used symbols
  • Identify instruments, control loops, line designations, and piping on the PID
  • Trace the course of a process from beginning to end

Course overview

All plants have a collection of piping and instrumentation drawings or P&IDs. These drawings show how components connect and how the process flows through the system. P&IDs also show the locations of instrument and control equipment relative to components in the process control path.

The P&ID Basics training course provides the skills necessary to read a P&ID. It identifies symbols and function labels and describes how components are related. Reading a P&ID is part of the Prints and Drawings training series.

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