P/S®-I MILL-RIGHT® Machined (PSI Seal)
The Style 85 seal is similar to the P/S®-I seal in that it is a single or multi-lip seal in a single casing. Because each seal is machined, it can be manufactured in various sizes and configurations without special tooling requirements. Style 85 is o-ring mounted, so it can be installed and removed without damage.
Garlock Mechanical Seals Full Technical Manual