Process and Instrumentation – P & I diagram to reduce drying cost

Design of any manufacturing facility should ideally start with preparation of a Process & Instrumentation Diagram (P & I diagram) for the process and utilities.

Below are a few samples of P & I Diagrams :

P & I diagram helps in crystallization of all thoughts and concepts to be put down pictorially. This helps identifying the optimum number of accessories viz. accessories like valves, fittings and instruments. This also helps identify areas where uncertainties exist. Sizes of various pipelines and accessories in the pipelines are determined easily when planned through a P & I diagram.

Equipment interlocks also get depicted through P & I diagrams. Chemical Process Engineers follows the concept of putting down the flowrate and values of targeted process parameters viz. temperature and pressure displayed in the P & I diagram.