P/S®-II Flexible Gylon® Element Cartridge Seal

Effectively seals dense and viscous fluids P/S-II


  • GYLON® sealing elements
    • Are non-clogging/non-sticking in viscous fluids
    • Offer excellent chemical resistance and dry running capability
  • Unique multi-lip cartridge design
    • Is unaffected by axial end play, intermittent operation or torque
    • 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 re-pair
  • One moving part, no springs to clog

Ideal for

  • Positive displacement pumps:
    • Viking
    • Roper
    • Moyno
    • Tuthill
    • Blackmer
    • Many others
  • Centrifugal pumps:
    • Durco
    • Goulds
    • Many others
  • Mixers
  • Conveyors
  • Rotary valves

Typical Applications

  • Adhesive
  • AFFF
  • Asphalt
  • Chocolate
  • Emulsions
  • Fats
  • Fructose
  • Fuels
  • Glue
  • Ink
  • Latex
  • Molasses
  • Oil
  • Paints
  • Paper coatings
  • Polymer resins
  • Sealants
  • Soaps
  • Starch
  • Syrups
  • Tallow
  • Tar
  • Varnish
  • Wax
Design Parameters
Pressure To 150 psi (10 bar)
Vacuum 28" (711 mm) Hg with proper design
Temperature To 300ºF (148.8ºC);
Over 300ºF, please consult
Surface speed To 700 fps (3.5 m/s) dry;
To 2,500 fps (12.7 m/s) with lubrication
Runout Up to 0.005" (0.13 mm) TIR
Axial motion +/-0.125" (3.2 mm)

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

Standard 3-lip Design with Quench Ports

Round, elliptical and other special gland configurations available

P/S-II Illustration

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Warning - Properties/applications shown throughout this Website are typical. Your specific application should not be undertaken without independent study and evaluation for suitability. For specific application recommendations, consult Beacon Gasket & Seals Co. Failure to select the proper sealing products could result in property damage and/or serious person injury. Performance data published in this Website has been developed from field testing, customer field reports and/or in-house testing. While the utmost care has been used in developing this Website, we assume no responsibility for errors. Specifications subject to change without notice.