What is an Isometric drawing in Piping? - Edgevarsity Blog Edgevarsity
What is an Isometric drawing in Piping?

What is an Isometric drawing in Piping?

In the previous blog on P & ID drawings, we have discussed only a segment of engineering drawing necessary in the oil and gas industry. In P & ID, it was mostly about piping design. However, another segment of drawing deals with the replication of 3d models that the members can understand at a construction site.

Usually, 3d models cannot be understood by the personnel at the fabrication and construction site. So, the 3d model is sketched on paper by compressing its dimensions so that the assigned personnel can easily understand all its necessary parameters.

If we look at the criticality of isometric drawings in oil and gas courses for mechanical engineers, it is magnificent. This is because the transferred information should be adequate through the process through which the piping should relate to other elements, with exact dimensions and other parameters in place.

Features of Isometric drawing in Piping:

Generally, isometric drawings are a 2d representation of 3d piping designs. Let’s check some notable distinguishing features of isometric drawings.

  1. It is not drawn to the exact scale measurement, but it is proportionate with exact dimensions represented.
  2. Pipes are usually drawn using a single line irrespective of the different line sizes and the other configurations such as reducers, flanges, and valves.
  3. Pipes are primarily shown in the same size. One can find the original dimensions specified in the Bill of Material, tagging, call-out, or notes.

Important information to note from Piping isometric drawings

A piping isometric drawing provides all the required information like:

  • Line Number of Pipe
  • Continuation isometric number
  • Flow direction
  • Piping dimensions
  • Piping joint types, weld types
  • Flange and valve types
  • Equipment connection information
  • Descriptions of Piping and Component with size, quantity, and material codes

Piping Isometric drawings are favoured in online course for piping engineering because they are efficient yet straightforward while conveying complex information.

Uses of Isometric drawing in Piping Engineering services

Isometric drawings for piping are commonly used for:

  • Construction Services
  • marking up deviation during site modifications.
  • Represents a Stress Analysis model built up for reference to determine final stress markup to update the stress requirements.

The next big thing that you should focus on learning and gaining knowledge about is how to read an isometric drawing.

But before wrapping up, let us highlight some key points related to piping isometric drawings.

  • Piping isometrics are drawn on a specific paper, which has lines forming equilateral triangles of 60°.
  • Calculations for pipe lengths were done using coordinates and elevations. Vertical dimensions or pipe lengths are calculated using elevations, while horizontal measurements are computed using north-south and east-west coordinates.

If you are keen to know in-depth about isometric and other drawings that are crucial for oil and gas training courses online, you can check the oil and gas piping engineering course for details.

by Debashree P

Debashree is an Aeronautical engineer by education and a curious researcher by passion. She is passionate about engineering and technology. She is an avid technology writer who has a knack for developing content for websites, newsletters, blogs, articles, advertising and marketing materials based on the requirements. Technologies of her interest include Aviation, Oil & Gas and AI.