Effective plant design, construction, and operation are team undertakings. In this environment, ensuring clear and concise communication among team members, especially if they are from different disciplines, can be an ongoing challenge. Of the many communication tools available to engineers, the piping and instrumentation diagram (P&ID, referred to as a process and instrumentation drawing by some) plays an important role in promoting communication and understanding. A P&ID is a type of engineering drawing that provides an overview of a process, its physical components, and how it is controlled. P&IDs are graphical representations of a process that show piping, vessels, valves, pumps, instrumentation, and other pieces of process equipment.
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