one. Introduction P&ID diagram is an acronym for Pipage and musical instrument diagram; it is besides known equally process and instrumentation diagram. Piping and instrumentation diagram (P&ID) is a detailed diagram used in the procedure manufacture for pipage and equipment in the process flow, and information technology besides includes the instrumentation and control devices. ii. How to Create a P&ID Diagram in Autocad ? P&ID stands for Process and Instrumentation Diagram to bear witness the pipage and other related items for process catamenia. Autocad P&ID represents a detailed graphical representation of the complex process system, including the piping, valves, instrumentation, equipment, and other process components in the system. In Autocad, p&id diagrams can exist created using the