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High-Viscosity Fluid Seal

Excellent torque transmission due to clutch
drive between seal head and drive collar.


  • Single Seal
  • Balanced
  • Independent of direction of rotation

Product specification example

Standards and approvals

ISO 3096


Seal face : Silicon carbide (Q1)

Seat: Tungsten carbide (U7)
Secondary seals: FKM (V)
Metal parts: CrNiMo steel (G)

Operating range

Pressure: p = 16 bar (232 PSI)
Temperature: t = -20 °C … +160 °C (-4 °F … 320 °F)
Sliding velocity: vg = 20 m/s (66 ft/s)
Viscosity: … 300 Pa·s
Solids content: … 7 wt.%

Recommended applications

Process industry
Oil and gas industry
High viscous media (tar, heavy oils)
Process pumps

Applicable ranges shown in the product introduction are limit values for each standard material.
Applicable ranges, performance data and figures can serve only as a guide for selection and therefore in actual use there will be some cases where general specifications cannot be applied due to unknown factors or constraints.
Please check the applicability before use.
The contents are subject to change without notice for improvement.


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