#1 Choice for Waterjet Cutting, Pump and Seal Repairs, Custom Die Making, Machining, Gasket Cutting, Gasket Materials, Rubber Extrusions, Pump Packing, Pipe Couplings and Gasket Making 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.

Email Us for Pricing >> Request Price Quote
Call: +1 604 298 6777   -   Toll Free: +1 877 363 7325