A high-level engineering drawing showing the major process equipment, material flows and operating conditions within a process facility.
A Process Flow Diagram (PFD) is a high-level engineering drawing that illustrates the principal process equipment, process streams and operating conditions within a facility. It provides an overview of the process design and material flow while omitting the detailed piping, instrumentation and control information found on Piping and Instrumentation Diagrams (P&IDs).
Process Flow Diagrams provide a simplified representation of process design and material flow for engineering and operational understanding.
PFDs are commonly used during conceptual design, process development and engineering studies and form the basis for developing detailed P&IDs and process safety analyses.
A Process Flow Diagram presents the overall process design, whereas a Piping and Instrumentation Diagram provides detailed piping, instrumentation and control information.
Process Engineering; Engineering Design; Process Safety.
Process plants.; Oil and gas.; Petrochemical.; Chemical processing.; Manufacturing.
ISO 10628
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