A general purpose elastomer bellows nonpusher seal.


  • For use in pumps, mixers, blenders, agitators, compressors, chillers, and other rotary shaft equipment.
  • For pulp and paper, petrochemical, food processing, wastewater treatment and other demanding applications.

Type DS-343 mechanical seals is a general purpose elastomer bellows nonpusher seal.

 View Sheet

Operating Conditions

  • Max. Operating Pressure : 15 kg/cm2 *
  • Temperature Range : -55 to 100 *
  • Max. Rubbing Speed : 20 m/s

*(Depend on combination of materials)

Design Features/Benefits

  • Non-Clogging, Single Coil Spring will not run foul due to fluid contact.
  • Automatic adjustment fully compensates for normal shaft end play and run-out, seal face wear, and equipment tolerances.
  • Sealing faces are precision lapped to provide effective performance with maximum seal life.


Standard Materials

  • Metal Parts : SUS 316
  • Spring : SUS 316
  • Rotary Face : Silicon Carbide/Tungsten Carbide/Carbon
  • Stationary Face : Ceramic/Silicon Carbide/Tungsten Carbide
  • Secondary Seals : Fluoroelastomer/Nitrile/Ethylene Propelene

*(Other configuration of materials also available on request)


Product Information