Waterjet Cutting, Pump and Seal Repair, Machining, Custom Die-Making and Cutting, Gasket Materials and Tools.

NES Type 31S Cartrige Mechanical Seal

Equivalent to AES CURC
NES 31 Single Cartridge Mechanical Seal

Operating Conditions

  • Pressure: 25 kg/cm2
  • Temperature: -40°C ~ 200°C
  • Speed: Up to 16 m/s


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

Additional Notes

  • Applications include clean water, sewage water, oil and other moderately corrosive fluids.
  • Used by petroleum, chemical, paper making and medical 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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