What is P&IDs?

P&IDs, or Piping and Instrumentation Diagrams, are detailed graphical representations of a process plant. They show the piping, equipment, instrumentation, and control systems, including all the mechanical equipment, piping, instrumentation, and control devices within a process. P&IDs are used for a variety of purposes including design, construction, operation, and maintenance of the facility. They are essential documents for hazard analysis and risk management.