P/S®-II Cartridge Seals with Flexible GYLON® Element

  • Shipping Weight: 0 lbs
  • Style/Model: P/S-II
  • ABS Certified: No
  • ADI/TSE Free: No
  • API 589 Compliant: No
  • API607Compliant: No
  • API622Compliant: No
  • DFARS Compliant: No
  • FDA Compliant: No
  • Fire Safe API 6FB: No
  • KTW Compliant: No
  • NSF® 61 Certified: No
  • REACH Compliant: No
  • RoHS Compliant: No
  • USDA Approved: No
  • USP VI 661 Compliant: No
  • USP VI 87 Compliant: No
  • USP VI 88 Compliant: No

The P/S®-II seal is a cartridge mounted, multi-lip seal, which is designed to seal those thick, viscous, temperature-sensitive products that create problems for face seals. The P/S®-II seal is extremely successful sealing positive displacement and centrifugal pumps within the published operating limits. The seal is not recommended in applications where the sealed product contains solids. Simple repair kits available.


  • Maximum Pressure: 150 psi / 10 bar
  • Maximum Vacuum: 28 in Hg / 711 mm Hg
  • Maximum Temperature: 300°F / 149°C
  • Maximum Surface Speed: 700 fpm / 3.5m/s dry; 2500 fpm / 12.7 m/s with lubrication
  • Misalignment and Runout: Up to 0.005" TIR in@fpm / 0.13 mm TIR mm@m/s
  • Axial motion: ± 0.125 in / 3.2 mm


  • Metal parts: 316SS (Other materials available)
  • Set screws: Hastelloy C®
  • O-rings: Fluoroelastomer standard (Other materials optional)
  • Sealing elements: GYLON®
  • Sleeve coating: Chrome oxide standard (Other coatings optional)

Hastelloy C is a registered trademark of Haynes International.

  • Overview

Features and Benefits:

  • GYLON® sealing elements are non-clogging/non-sticking in viscous fluids and offer excellent chemical resistance and dry running capability
  • Unique multi-lip cartridge design is unaffected by axial end play, intermittent operation, or torque; and permits pump reversal
  • Machined gland is very versatile; designed to fit the equipment
  • Hard coated sleeve prevents damage to equipment
  • Rebuild kit available for easy in-field repair
  • One moving part--no springs to clog

Typical Applications:

  • Positive displacement pumps made by Viking, Moyno, Blackmer, Roper, Tuthill, and many others
  • Centrifugal pumps made by Durco, Goulds, and many others
  • Conveyers
  • Rotary Valves

Media Use:

  • Adhesive, Glue
  • AFFF
  • Asphalt, Tar, Fuels, Oil
  • Chocolate
  • Emulsions
  • Fructose, Syrups, Molasses
  • Latex, Varnish, Paints, Ink, Wax, Sealants, Paper Coatings
  • Tallow, Fats, Starch
  • Polymer Resins
  • Soaps