#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 31D Cartrige Mechanical Seal

Equivalent to AES CD SA
NES 31 Double 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
  • Rotary Face: Carbon, SiC, TC
  • Stationary Seat: SiC, TC

Additional Notes

  • Self align faces makes sure inboard and out board faces remain square to rotating shaft.
  • Design ensures solids are moved away from seal faces, thereby resisting clogging from process fluids with high solid content.
* 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