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I would like to ask about CAD drawing standards and pipeline labeling

2010-05-27View Original

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What are the line widths for the primary and secondary material lines in CAD? What are the symbols used to mark plastic pipes and glass pipes? Can anyone provide me with tips on CAD drawing?
Reply #22010-05-27
For CAD pipes, the thicknesses for primary and secondary pipes are 0.53 and 0.25, with the thinnest line width being 0.13. As long as the pipes are labeled using the pipe system icons, the construction workers will be able to understand them.
Reply #32010-05-28
We use 0.9 for the main material and 0.6 for the secondary material.
Reply #42010-05-28
This is related to the clarity achieved by the printing machine; we set it to 0.6 for the main material line and 0.4 for the auxiliary material line. There are still differences in the labeling methods among different units. We uniformly adopt the notation methods specified in the \"Unified Regulations on the Content and Depth of Construction Drawings for Chemical Process Design\" (HG20519).
Reply #52010-05-28
There is no standard regarding the line width of primary and secondary components; as long as it is possible to clearly distinguish between them from the diagram, that is sufficient. Plastic pipes and fiberglass reinforced plastic pipes are types of piping materials, and different organizations and projects use different codes for them.
Reply #62011-07-12
It seems that setting it to 0.5 makes it a bit too wide

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