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Single Spring Rubber Bellow Mechanical Seal 70 Series (7131,7131CR)

Face Materials

  • Carbon
  • Tungsten Carbide
  • Silicon Carbide
  • Ceramic

Secondary Seal

  • Rubber Bellow, Cup & O ring
  • Nitrile Neoprene, Viton

Metal Parts

  • SS 316
  • SS 304


  • Water
  • Mild Chemicals
  • Oil

Seal Features

  • Single Spring
  • Single Seal
  • Unbalanced
  • Inside Mounted
  • Independent direction of rotation

Performance Limits

  • Size – 0.5” to 4”
  • Pressure – upto 8 Kg/cm2
  • Temperature - -40°C to +150°C

The 7131 Type seal has been designed for high volume production and reliable service using field Proven concepts. The low Profile offers a unit with a very high degree of interchangeability.

These seals can be reliably used in Hot and cold water pump hydraulic pump and motor, air compressors.

Our Type 7131 seal is available as standard to fit into almost all existing envelope dimensions including Din 24960 without any modification to the equipment.

Rubber bellows protect shaft and sleeve from fretting.