P/SŪ-II Seals for Viking® Pumps

With flexible GYLON® elements P/S-II


  • Unique multi-lip cartridge seal is easy to install
  • Wet or dry operation
  • GYLON® sealing elements allow versatile environmental capability
  • Anti-stick sealing components are non-clogging in viscous fluids
  • One moving part, no springs to clog
  • Rebuild kit available for easy in-field repair
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)

Metallurgy 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

Standard and universal bracket designs available

P/S-II Illustration

Viking Models

  • G
  • H
  • HL
  • K
  • KK
  • L
  • LL
  • LQ
  • LS
  • M
  • N
  • P
  • Q
  • QR
  • QS
  • R

Environmental Control Options

Environmental Control Options

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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.