Imagine complex design and yet orthographic drawings are used for construction, that is really a headache.
The following figure gives an example of how one Isometric drawing can represent three orthographic drawings. Piping Isometric drawings are popular because of their simplicity, yet efficient in conveying complex information.
The actual sizes are notified in the Bill of Material, tagging, call-out, or notes. Pipes are drawn with a single line irrespective of the line sizes, as well as the other configurations such as reducers, flanges, and valves.It is not drawn to the scale, but it is proportionate with the exact dimensions represented.
