Expert Mechanical Seal Repair | Waterjet Cut | Precision Gasket Cutting

NES 7U Pusher Type Mechanical Seal

Equivalent to John Crane* 9

NES 7U Mechanical Seal

Operating Conditions

  • Pressure: 17 kg/cm2
  • Temperature: -20°C ~ 230°C
  • Speed: Up to 25 m/s


  • Face: Carbon, SiC, SSiC, TC
  • Seat: Ceramic, SiC, SSiC, TC
  • Elastomer: NBR, EPDM, Viton
  • Metal: 304SS, 316SS

Additional Notes

  • PTFE wedge seals with compact design permits use in almost all types of pumps. Seals can be easily repaired and/or converted to O-Ring seals.
  • D3' D4' and L3' suit John Crane* Type 109, others suit John Crane* Type 9. D11, D12 and L45 are the dimensions of Drive Pin.
* 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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