[PDF] Piping & Instrument Diagrams - AIChE Drawings are Engineering’s •Process Flow Diagrams: What a Process Does •Piping & Instrument Diagrams: How it works •Layout Drawings: How it looks •Mechanical Drawings: | •Communication Document for Project. Uses of P&IDs •Serves as Design Basis for: Equipment Design Piping Design Estimating Purchasing •Used to evaluate[PDF] MECHANICAL ENGINEERING - Institute Of Piping Design Module - 10) Plot Plan, Equipment Layout, & Piping GA Drawings. o Plot Plan Development & Requirements. o Layout Terminology & call outs, o Control Point & Plant north, Battery Limits. o Equipment Layout: Types, Guidelines for preparation based on type, o Guidelines for Building layout types. o Piping GA Drawing Requirements and Layout Procedure.