P&ID’s objective


its objective is to indicate all process and service lines, instruments and controls, equipment, and data necessary for the design groups. The process flow diagram is the primary source of information for developing the P&ID.

The P&ID should define piping, equipment and instrumentation well enough for custom estimation and for subsequent design, construction, operation and modification of the process. Material balance data, flow rate, temperatures, pressure, etc., and piping fittings details are not shown, and purely mechanical piping details such as elbows, joints and unions are inappropriate to P&ID’s

Next Time: Interconnecting P&ID


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