Expert Mechanical Seal Repair | Waterjet Cut | Precision Gasket Cutting

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.

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