The purpose of any quality check is to verify that all the specifications, drawings, and other deliverables reflect the exact combination of the issues impacting the end product. The final drawing will show the desired pipe in a way that the length, width and depth are detailed in a single view, with associated symbols used for fittings, valves, and flanges depicted and scaled to the isometric grid. Attention to detail is a high priority when it comes to matching components to the pipe spool drawings.įabrication generally begins shortly after the issue for construction of isometric drawings. If revisions of piping isometrics need to be further evaluated, the fabrication schedule can fall behind. However, many projects issue drawings earlier. Ideally, drawings should be issued after a 60 percent model review.

They are typically generated from CAD software (i.e AutoCAD, SOLIDWORKS) and must address specified project requirements (pressure safety valves, process vents/drains, etc). Pipe spool drawings generally derive from 3D models and are drafted by a team of mechanical engineers. Pipe spool drawings include a list of material descriptions, pipe pieces, item numbering and pipe bending data. A typical pipe spool drawing consists of a graphical representation, bill of material, and a title block. It is their assignment to generate the drawings in several standard formats required by site managers and construction companies.

Nozzle Orientation and Platforms Design Drawings.Pipe spool drawings are generally a service provided by mechanical drafting teams.Vendor Drawings for Vessels and Machines.įrom Civil / Structural Engineering Department.Vendor Drawings for PSV, Control Valves, Flow Meters, Level Instruments, Pressure Instruments, Temperature Instruments etc.Piping and Instrumentation Diagram (P&ID).Reference Input Drawings and Documents From Process Department Deliverable Drawings and Documents are prepared by Piping Department. Reference documents are provided by other engineering departments such as Process, Mechanical etc.

Piping Engineering Involves Referencing and Production of various Drawings and Documents.

Sample isometric drawing for piping