AutoCAD P&ID comes with predefined Pipe Lines. These are
- Primary Line Segment
- Secondary Line Segment
- Primary Line Segment – Existing
- Secondary Line Segment – Existing
- Primary Line Segment – New
- Secondary Line Segment – New
- Jacketed Pipe Segment
If you want to create your own lines you can by doing the following.
Go to the properties of your project and navigate to your P&ID Class Definitions, Engineering Items and then Lines.
Right Click on Pipe Line Segments and you will see an option to create new. You then give it a class name as well as the Display name. (These can be different)
Select OK and it creates the new pipe
You have the following options.
Show flow arrow – You can show whether the lines will have flow arrows on them or not
Flow Arrow style – The flow arrow is actually a block that is found in the projSymbolStyle dwg file
Layer – This is the layer that it will be placed on
Color – you can also override the color of the line
Sline Type – You can either have a Polyline or a Mline
Linetype – You can select a linetype
Linetype scale – You can choose the linetype scale as well
Plotstyle – what color to plot
Lineweight – You choose the line weight of the pipe line
Tagging Prompt – you can automatically tag when created or prompt or not have a tag at all
Gap Priority – this is a numerical number which controls (when a line crosses another line) which line gets the gap. The lower the number the higher the priority. If the numbers are the same then the vertical line gets the gap
Once you are done setting up these properties you can click on OK. You will then be able to select Add to Tool Palette and the line will be placed on the tool palette that is currently open.