What is a Pipe Spool Drawing?

Pipe spool isometric drawings are a service offered by mechanical drafting teams. It is their task to generate the drawings in various standard formats required by construction companies and site managers. A pipe spool drawing will comprise a graphics area, bill of material area and a title block area and are not drawn to scale. They will include a list of pipe pieces, material descriptions, item numbering and pipe bending data.

A pipe spool drawing is a useful MEP (Mechanical, Electrical and Plumbing) tool for plumbers as it enables them to understand how to assemble a pipe spool and its components, which have been prefabricated in the workshop. Once the pipe spool has been manufactured and shipped to the building site for assembly, the pipe spool drawing provides detailed information to advise the plumbers what goes where.

As a pipe spool project can essentially comprise of hundreds of components, having the pipe spool drawing in hand is necessary to ensure that nothing goes wrong and time and money is not misspent. Accuracy is imperative for any construction, and the pipe spool drawings will usually accompany the pipe spool delivery to avoid any delay or break in the workflow. If revisions of the pipe spool drawings need to be done, then the fabrication schedule can fall behind.

The isometric drawings are as much a priority as the actual manufacturing of the pipe spools as they cannot be put to good use without the other. Timing is everything, and in most cases, the drawings will be matched per diameter-inch (DI) capacity. Last minute exclusions or inclusions can be problematic for plumbers, and all discrepancies must be investigated. Attention to detail is high on the priority list of the project owner, construction company and fabricator when it comes to matching components to the pipe spool drawings. If even one drawing is out of place, then delays will occur.