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NES Type 33 Cartrige Mechanical Seal

Equivalent to Durometallic P-50

NES 33 Cartridge Mechanical Seal

Operating Conditions:

  • Pressure: Up to 40 kg/cm2
  • Temperature: Up to 200°C
  • Speed: Up to 20 m/s


  • All Metal Parts: 316SS
  • Spring: 316SS, Hastelloy C.
  • Elastomer: Viton, AFLAS, EPDM
  • Rotary Face: SSiC, SiC, TC
  • Stationary Seat: SSiC, SiC, TC, Carbon

Additional Notes

  • Preset cartridge design facilitates quick and easy installation with less chance of errors.
  • Springs are mounted on stationay portion of seal to make up for seal misalignment and face eccentricity.
  • Flexible stator design withstands face eccentricities and out of perpendicularity conditions.
  • Fits standard ANSI pumps.
  • Frequently used by the pulp and paper mills, petrochemical, waste treatment, sewage plants and chemical processing industries.
* The John Crane and Flexibox trademarks are trademarks of their respective owners, and neither entity is affiliated with NE Seal Ind. Prod. LTD, its products, or its website, and does not manufacture, sponsor, or endorse its products.

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