In an out-of-the box Plant 3D projects, nozzle tags need to be unique. So even though the above suggestion made by @DVaquand is correct. Plant will not accept you placing another nozzle with the same tag- hence the number identifier.
In theory you can remove this requirement for nozzle unique tagging from your database. But this is untested and I would not do this in a 'live' project without heavily testing this.
Go to the 'PnPTagEnlistedColums' table and remove the 'Nozzle' row item from the list. copy the PnPID value from the row that you deleted.
Then go to the 'PnPBase' table and look for the row with the same PnPID value and remove that row as well.
After you have done this, you can change the tag format. If you do this in a live project you will need to use the PnPTagRebuilder to update the existing tags after changing the tag format. This is another reason why you have to determine these things before starting your project.
Honestly I would not advise it, but this way you can theoretically use only the nozzle type for tagging. But maybe you don't need to do all this.
You can change your nozzle ortho annotations and tagging in the isometric drawing to only show the type and not the number.
To change the Ortho Annotation
to change the isometric annotation.