Step 1: Open Autodesk® AutoCAD® Plant 3D^™ Spec Editor (run as administrator) and open the file “ANSI Flange Catalog.pcat”

Step 2: Add the component from Catalog to your current spec or use the existing spec file.

Step 3: Open any drawing and run the command PLANTREGISTERCUSTOMSCRIPTS

Step 4: Restart Plant 3D

After installation the package is located in the path: “C:\AutoCAD Plant 3D 2025 Content\Customscripts\Flange RF Catalog Python Script”

To uninstall this content pack, please go to Control Panel => Programs and Features => select the "Flange RF Catalog Python Script" => Uninstall