# Kyoto2.org

Tricks and tips for everyone

# What is isometric drawing in piping?

## What is isometric drawing in piping?

Isometric Drawings An isometric drawing provides a three-dimensional layout of the equipment and piping. Usually, piping isometrics are drawn on preprinted paper, with lines of equilateral triangles form of 60°. Isometric drawings are particularly important during the construction phase of a project.

How do you find isometric drawings?

Documents Required for Checking Piping Isometric Drawing To cross-check line number, line size, insulation, special requirement notes (like no pocket, press head), etc. To check Design Pressure & Temperature, stress critical lines, Hydro test pressure, inspection class and type, etc.

What are the different types of gas lines?

The most common materials used to make gas piping are steel, black iron, polyvinyl chloride (PVC), high-density polyethylene (HDPE) and copper.

### Why do we take 30 degrees in isometric projection?

Isometric projection are always drawn at an angle of 30 or 60 deg otherwise one of the faces would be invisible.

What is ISO and P&ID?

The P&ID standard published by the International Organization for Standardization (ISO) technical committees belongs to the standard series ISO 14617, graphical symbols for diagrams. The purpose of ISO 14617 is to develop a library of the harmonized graphical symbols for diagrams used in technical applications.

What is the angle of isometric drawing?

Isometric projection is a method for visually representing three-dimensional objects in two dimensions in technical and engineering drawings. It is an axonometric projection in which the three coordinate axes appear equally foreshortened and the angle between any two of them is 120 degrees.

## What are the types of isometric drawing?

An isometric drawing is one of three types of axonometric drawings. It is created on the basis of parallel projection technique. The other two types of axonometric drawings are dimetric and trimetric drawings. In isometric drawings, the three principal axes make equal angles with the image plane.

Can you use PVC for gas line?

They used to allow a yellow PVC for natural gas. It was required to be completely buried. They had special metal 90’s that were attached to the end that would complete the portion as it exited the ground. Of course plastic is the most common supply line to the meters nowadays but not PVC.