Mechanical Seal Style 23

Externally Mounted Mechanical Seal for extreme corrosive services

Mechanical Seal Style 23


  • Mounted outside of stuffing box
  • Only corrosion resistant materials are in contact with product
  • Hydraulically balanced
  • Simple design is assembled at the factory – no installation measurements required
  • Primarily seal face is shrouded in rugged metal drive holder to minimize potential breakage
  • Adaptable to plastic or PTFE sleeves with optional split metal collar which will not damage the softer sleeve material
  • Inch and metric sizes available


Operating Conditions

Max Temp:250ºF (121ºC)
Max Pressure:150 PSI (10 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.



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.