Specially printed isometric sheets are available with lines drawn vertically and at 30o clockwise and 30o counter-clockwise respectively from the horizontal axis of the Piping Drawings paper by the use of which 3D representation of the pipelines can be prepared. In complex piping systems, especially within the unit/plant building where orthographic views do not illustrate the details of design fully, pictorial view in isometric presentation is drawn for clarity. Orthographic symbols are available in templates that are used for speeding up the manual drafting and also the symbol library for computer aided drafting.

Most commonly used symbols are in Table 1. To represent a three plane piping in two dimensions of the paper, certain symbols are followed. These drawings are called the General Arrangement of Piping. Isometric Views Piping layout is developed in both plan view and elevation view and section / details are added for clarity wherever necessary. There are two types of views used in the piping drawings: a) Orthographic.- Plans and Elevations b) Perspective. Piping Engineers derive basics from these to represent the pipeline routing on the drawing.

The machine drawings and the geometrical drawings are taught in the basic engineering curriculum. GOPINATH THE BASICS The drawings are always considered as the language of engineers. PIPING ENGINEERING CELL PIPING DRAWINGS T.

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