Specifies the nominal pipe diameter for the reducing branch fitting. This option is available only if you use a custom branch fitting.
You can create custom branch fittings using the Branch Intersection rule and the Single Piping Materials Class Template.xls file to create the specification. With the Branch Intersection rule you can define a reinforcement at acute-angled branch intersections, and the nominal pipe diameters for the intersecting pipes. The Single Piping Materials Class Template.xls file is available in the [Product Folder]\Smart3D\CatalogData\BulkLoad\Templates folder.