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The DS-85N seal is the ideal for general purpose applications. Its Alloy 20, Hastelloy C, Titanium, AM 350 bellows provide corrosion resistance in a board rang

of services. Its cost-effective design, combined with a reliable performance.


 For use with extremely corrosive chemicals, chemical, and refinery processing pump applications.

 For process services requiring corrosion resistance.

Operating Conditions

 Max. Operating Pressure : 25 kg/cm 2 *

 Temperature Range : -40 to 220 *

 Max. Rubbing Speed : 20 m/s

*(Depend on combination of materials)

Design Features/Benefits

  Results in even stress distribution with benefits of greater strength and higher rate   

   of flexibility: seal is bi-rotational and inherently pressure balanced.

 Is resistance to clogging and therefore ideal for slurries and fibrous liquids. Similarly,

   seal unit is easy to clean and sterilize in place.

 Ensures a simple-to-fit seal, with superior heat dissipation paths, Seal unit is reliable 

   and does not wear the shaft.

Standard Materials

 Metal Bellows : Alloy 20, Hastelloy C, Titanium, AM 350

 Adaptive Hardware: Alloy 20, Hastelloy C, Titanium, SUS 316

 Rotary Face : Silicon Carbide/Tungsten Carbide/Carbon

 Stationary Face : Silicon Carbide/Tungsten Carbide/Carbon

 Secondary Seals : Fluoroelastomer/Per-Fluoroelastomer/Chemraz

*(Other configuration of materials also available on request)

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