ISO vs ORTHOGRAPHIC Simplicity (Only one pipe line is drawn in one A3 size paper). Also pipe fabricator can pick up material required for fabrication of pipe line from stores, with the help of Bill of Material given in isometric drawing. A pipe fabricator can read it and understand pipe routine easily. An isometric drawing is generally on a A3 size paper. To aid pipe fabricator on site, isometric drawings are prepared. But 3D scale model can not be put on a paper, and 3D scale model does not indicate dimensions. A pipe fabricator can understand GA drawing better only with the help of 3D scale model. A0 or A1 size drawing is to big to handle. A GA drawing is generally on A0 or A1 size paper and contains a lot of lines, and may not be easy to understand pipe routine. 2D General Arrangement (GA) drawings are used for fabrication on site. This is then converted into a 3D scale model, to check interference of pipe lines. In this all pipelines are drawn at zero z co ordinate. HOME Piping Drawings Piping Isometrics P&I Diagram 2D Piping 3D Piping Models LISP Training Piping Training Design Info Tubular Exchanger Agitator / Mixer Design & Drawings Tubular Exchanger Agitator / Mixer Zero Hold up Filter Process Vessel Jib Crane About Me My Resume Contact Me Cross Country Piping Satish Lele M: 9198202 77283 Why Isometric Drawings are required? : Generally in the development of a project, a conceptual 2D drawing is first created.
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