![]() ![]() Documentation - Documentation of process control systems - Block Flow Diagrams (BFD), Process Flow Diagrams (PFD), Piping and Instrumentation Diagrams (P&ID) and more.Piping & Instrumentation Diagram - P&ID.This figure depict a very small and simplified BFD: where possible the diagram should be arranged so that the process material flows from left to right, with upstream units on the left and downstream units on the right.unit operations (i.e., blocks) should be labeled.flow streams should be numbered sequentially in a logical order.the direction of flow of each of the process flow streams must be clearly indicated by arrows.These lines should either be horizontal or vertical process flow streams flowing into and out of the blocks are represented by neatly drawn straight lines. ![]()
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