For example, if double piping is modeled by mistake, it will read the double quantity of material.ĥ. However, It is always better to check and verify as there could be some issues with the modeling itself that may cause discrepancies in material and quantity. With the advancement of technology, there could be minimum or even zero possibilities that the North arrow, coordinates, and elevation in Isometric would differ from the piping arrangement hence the dimensions and MTO should match exactly if the source 3D model is the same. 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.

Piping and Component descriptions with size, quantity, and material codes.

A piping isometric drawing provides all the required information like:.

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.

Insulation Area (in m²) can be found as (all in meter) x Length of Pipe (in meter)īy definition, Isometric drawings are a pictorial representation that combines height-width-depth/length into a single view with 30 degrees from its horizontal plane as shown in the attached image.īuilt-up of Isometric Drawing Features of Piping Isometric DrawingĪn isometric Drawing is a two-dimensional (2D) drawing that represents the 3D piping system.

The volume of Water required for hydro testing is estimated as π x ² x Length of Pipe.

Pipe Weight is calculated as π x diameter of the pipe (in m) x length (in m) x thickness (in mm) x density of pipe material.Inch Dia is calculated as the Size of the Pipe joint ( in inch) x No, of Joints.Inch Meter can be estimated as the Length of pipe (in meters) x Size of pipe ( in inches).Piping isometrics indirectly helps to calculate many parameters required during project execution like: For reference as Stress Analysis model built up and the final stress markup for updating stress requirements.For marking up deviation during site modifications/ as-builting.Video Tutorial of Basics of Piping Isometric Drawing.Online Video Courses on Piping Isometrics.Example of length calculation in Piping Isometric.

Autocad isometric pipe drawing