Mechanical Seal Style SS1

Single Stationary Single Spring Cartridge with Circulation Gland

Mechanical Seal Style SS1


  • Part of Flex-A-Seal’s integrated/platform single cartridge seal design
  • Patented (Patent Number US 7,979,986) Plunger-Lock drive
  • Stationary pusher design
  • Hydraulically balanced
  • Heavy-duty rugged design
  • No little springs to clog or fatigue, simply one beefy single spring located out of the product
  • Easy cartridge installation
  • Sleeve is isolated from product
  • Flush position maximizes face cooling
  • Shrouded rotary seal ring for maximum face protection and reliable start-up
  • Uniform 360° transfer of torque to primary rotating face
  • No pins to break or hang up
  • Easily upgradeable faces, metallurgies, and elastomers
  • Faces designed for optimum heat dissipation
  • Metric sizes available

SS3 with Circulation, Vent & Drain Gland

Stationary Single Spring Cartridges

  • All the benefits of the SS1 design plus vent and drain gland with throttle bushing
  • Pipe connections are made to different sizes to assure that correct piping plans are employed
  • Cost-effective upgrade


Operating Conditions

Max Temp:400°F (204°C)
Max Pressure:300 PSI (20 bar)
Max Speed:6000 FPM (30 m/sec)

Note: Max Temperature / pressure / speed indicate operating extremes independently and do not imply the seal will function at these extremes at the same time. Contact Flex-A-Seal if in doubt.


For more information on the SS1


Depending on your specific needs and application, Flex-A-Seal can help you identify the ideal products. Contact us to tell us about your needs and request a quote.