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SFL850N Cartridge Seals Metal Bellow


Balanced simple seal, for shafts without step. Independent of the direction of rotation with rotating metal bellows.

Typical Industrial Applications:

  • Chemical industry
  • Cold media
  • Highly viscous media
  • Hot media
  • Power plant technology
  • Refining technology

Technical characteristics

  • For extreme temperature ranges
  • No dynamically loaded O-Ring
  • Pumping screw for highly viscous media available
  • Short installation length possible


  • Seal face: Carbon graphite antimony impregnated (A), Silicon carbide (Q12)
  • Seat: Silicon carbide (Q1)
  • Bellows: Inconel® 718 hardened (M6), Hastelloy® C-276 (M5)
  • Metal parts: CrNiMo steel (G), Duplex (G1),
  • Hastelloy® C-4 (M)

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