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 below-attached image.

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 mark up for updating stress requirements.

For marking up deviation during site modifications/ as-builting.Upon completion and approval of the piping isometrics, they are used for fabrication and then construction of the piping system. For complex piping systems, individual pipe runs are represented on separate isometric drawings.A table gives the number and detailed description of each type of fittings represented on the drawing.In addition, all the fittings including, valves, flanges, elbows etc.

The operating and design process conditions (pressure and temperature) for the pipe run may also be reported on the isometric.

This line number is indicative of the fluid service, piping class and material, insulation etc.

The line numbers for lines pipe runs represented on the drawing is clearly indicated.

Straight lengths of all the pipe runs on the drawing are reported as clearly as possible.

Isometric drawings carry a graphical representation of the 3 dimensional piping system being represented.

Some may feel like they need online masters degree programs to understand this, but this post will bring you insight. Development of computer aided design (CAD) tools allows the piping system to be modeled in 3D and this 3D model can then be used by the piping designer to quickly produce isometric drawings with minimum interference. It is the general practice among engineering organizations to produce isometric drawings of a piping system to represent all the details.

Pipe line isometric drawing pdf