4C / 4CN

Suitable for KSB's CPK / CPKN 


  • Chemical and petrochemical industries


  • Single mechanical seal

Technical Data

  • Operating pressure: 
    • Up to 25 bar, dynamic
    • Up to 37,5 bar, static
  • Temperature: 20 °C to 150 °C


The seal is tailored to the conical installation space of the pump and perfectly suitable for solids-laden fluids.

Stationary design, multiple springs located outside the fluid handled, so the large springs are insensitive to contamination.

Can optionally also be operated with unpressurised quench liquid.

Further technical information about 4C