Within Revit you can search or browse Vault for Revit family types and load them into the current project. The Load Family feature supports files of type .rfa with or without type catalogs.
Load Family from Vault
The Load Family Dialog opens.
See Search Revit Family Files for details about creating search criteria.
Refer to Searching Vault for more information on creating search criteria.
OR
All family types in the family are loaded.