Mechanical Seal Style RS1

Single Rotating Multi-Spring Cartridge with Circulation Gland

Mechanical Seal Style RS1


  • Part of Flex-A-Seal’s integrated/platform single cartridge seal design
  • Patented (Patent Number US 7,979,986) Plunger-Lock drive
  • Hydraulically balanced
  • Homogeneous monolithic seal ring
  • Unique shrouded rotary assembly
  • Drive mechanisms, springs and the sleeve are isolated from the product, minimizing corrosion and stress-related failure
  • The seal faces are positioned in the gland for maximum protection
  • A dynamic elastomer moves on a non-metallic surface and eliminates fretting
  • The flush position maximizes face cooling
  • Metric sizes available

RS3 with Circulation, Vent & Drain Gland

  • All the benefits of the RS1 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:4500 FPM (22 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 RS1


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.