Here is an example of Ranger Field Uncle Ches TB Pid. Abbreviated as P&ID, a piping and instrumentation diagram is an articulate drawing of a processing plan that entails the piping and process equipment with its instrumentation and control machinery. It displays the piping and associated parts of a physical process flow. Such diagrams are famous in the engineering field. Use EdrawMax to create a PID diagram and other types of diagrams with ease.