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NES 142 Elastomer Bellow Mechanical Seal

Equivalent to John Crane* 21, 51, 521, Sealol 43

NES 142 Mechanical Seal

Operating Conditions

  • Pressure: Up to 10 kg/cm2
  • Temperature: -20°C ~ 180°C


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

Cross Specification Charts NES 142

Cross Specification Charts NES 14

Additional Notes

  • General purpose seal, widely used in centrifugal, hydraulic, rotary and turbine pumps, compressors, mixer, and other rotary shaft equipment.
  • Commonly used by the wastewater and water systems 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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