PFD
Process Flow Diagram
The drawing that comes before the P&ID. It shows the process concept — major equipment, main streams and the heat and mass balance — and deliberately omits the detail needed to build it.
Piping inspection and supervision, explained from scratch
Process Flow Diagram
The drawing that comes before the P&ID. It shows the process concept — major equipment, main streams and the heat and mass balance — and deliberately omits the detail needed to build it.