To create piping from centerline objects

1. Draw centerline objects. You can use lines, arcs, and polylines. Centerline objects can change elevation.
   
2. If the pipe spec, size, or line number are not set in the ribbon, do the following:
   • On the ribbon, click Home tab Part Insertion panel Spec Selector drop-down list.
   • In the drop-down list, click a pipe spec (for example: CS300).
   • In the Pipe Size Selector drop-down list, click a pipe size (for example: 6”).
3. On the ribbon, click Home tab Part Insertion panel Line to Pipe.
4. If you want to retain (not erase) centerline objects after conversion, do the following:
   • Enter e (Erase).
   • Enter n (No).
5. Select the centerline objects.