You can specify different parts to use when routing different piping sizes in the AutoCAD Plant 3D toolset model.
You can assign certain sizes of a part to include in a spec. After you assign part sizes, if you have more than one part of the same size (size conflict) you can set part-use priority. The part-use priority designates which parts to use by default when routing in an AutoCAD Plant 3D toolset model.
For example, if you have both SW and WN flanges in your spec, you can assign the WN flanges priority. When you route pipe in the 3D model, the WN flange is used by default. To use an SW flange instead, you can substitute the flange. You can also place the SW flange from a tool palette or the Spec Viewer.
On a Spec Sheet pane, a yellow warning icon appears in the Part Use Priority column for parts that have more than one part available in the spec for a specific size. To resolve the size conflict, click the icon.