Mechanical Seal ARB3 (Standard)

Mechanical Seal ARB3 (Standard Bore)


  • Rotating design uses centrifugal force for self-cleaning
  • Uniform 360° transfer of torque to the rotating face
  • Welded metal bellows replace the dynamic elastomer which can hang up the seal faces
  • No springs to clog or break
  • No fretting
  • Only two (2) static elastomers – eliminate seal failures caused by dynamic O-ring “hang up” and offers cost savings when upgrading to Perfluorelastomers



Rotating Seal Face:Carbon, Tungsten carbide, Sintered silicon carbide
Stationary Seal face:Sintered silicon carbide
Bellows:Hastelloy® C276
Metallurgy:316 SS
Elastomers:Viton®, Ethylene propylene, Aflas®, Buna, Neoprene, Perfluorelastomer
Gland Gasket:Glass-filled Teflon™
Throttle Bushing:Glass-filled Teflon™

Operating Conditions

Temperature:400°F (200°C)
Pressure:300 PSI (20 Bar)
Speed:4500 FPM

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 ANSI Flex line


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.