Piping and Instrumentation Drawings

Piping and Instrumentation Drawing P&ID’s are the first and most important document for any engineering project.

The document/drawing which act as the input /starting point for many disciplines.

Just to simply define P&ID:- It is a diagram which shows the interconnection of process equipment and the instrumentation used to control the process.

P&ID is rich source of information which is required as input for preparing specification and various other documents. P&ID can looked for follwoing information.

  • Instrument Type

  • Line number

  • Line size

  • Line properties

  • Insulation requirement

  • Vessel/Tank trim material

  • Vessel/Tank pressure/temperature rating