Design Pressure and Design Temperature (It’s not mandatory).

Insulation and Heat Tracing Type (If the line is insulated only).

Project Name, Project Code and Area Code.

Here, you will learn to check the piping isometric drawing section-wise for ease of learning. The isometric drawing sheet consists of four major parts viz title block, drawing area, BOQ (Bill of Quantity ) section, and Special requirement notes section. To check the connection/end requirements for mounting the instruments.

To check special items type and their dimensions To check elevation and orientation of connected nozzle To check line route, dimension, elevation, valve orientation and co-ordinates To check Design Pressure & Temperature, stress critical lines, Hydro test pressure, inspection class and type, etc. To cross-check line number, line size, insulation, special requirement notes (like no pocket, press head), etc.

P&ID (Piping and Instrumentation Diagram) Moreover an isometric is not overcrowded with other information, useless for piping and it is easy to visualize.Documents Required for Checking Piping Isometric Drawing Documents Isometric drawings are easier to be used for stress analysis of the piping, fabrication and construction, compared to other orthographic drawings, since they carry all the necessary information for these tasks. 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.

Reading pipe isometric drawing