Difference between pipeline layout plan and pipe section diagram
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In engineering design, which one is developed first – the pipeline layout plan or the pipe section diagrams? And what are the differences between the two? Besides being intuitive, easy to see, and easy to understand, are there any other differences? Who has the icons for reading pipe layout diagrams!
The pipeline layout plan is now ready; the individual pipe sections will be separated only for on-site installation. I don’t understand what you mean by a \"pipe section diagram\" For regular projects, a list of pipe sections is prepared after the pipeline layout plan is finalized, so as to facilitate on-site installation. Does the pipe section diagram you mentioned refer to a single-line diagram (ISO diagram, axonometric diagram)? These are all drawings created to ease on-site installation. I hope you can understand what I’m saying.
Generally, one should first draw the pipe section diagrams; what you might be referring to as single-line diagrams. After these are completed, then the pipe layout plan is drawn.
First produce the ISO diagram, then the pipe layout plan
It should be done in the order of PID, layout plan, and single-line diagram (ISO). When we relocated a project, we found that there were only ISO diagrams, but no floor plans.
The ways of expressing it vary so much – is there any standard to follow?
It mainly depends on the software used for piping design. With 3D software, models are often used directly; during the design process, ISO dimensions are first determined within the model, from which pipe layout plans are then created. Sometimes, CAD is also used to produce a temporary pipe layout plan, and the piping is designed based on that plan, with the subsequent steps being the same as those mentioned earlier. If CAD is used for drawing, then the pipe layout plan is created first, followed by the ISO drawings. These ISO drawings actually serve as a supplement to the pipe layout plan; they can also be considered detailed drawings. However, in some cases, the client requests ISO drawings for all the pipes, and in such cases these ISO drawings are axonometric views, rather than detailed drawings.