Suitable for KSB's KWP Bloc type series


  • waste water containing stringy material and abrasive particles


  • Single mechanical seal

Technical Data

  • Operating pressure:
    • Up to 25 bar, dynamic
    • Up to 37.5 bar, static
  • Temperature: 0 °C to 100 °C


Single mechanical seal, bi-directional and balanced. Suitable for fluids with high solids content.

Multiple springs located outside the fluid handled. The springs are insensitive to contamination and provide uniform surface pressure across the seal faces, thus ensuring a long service life.

Easy to install as the pump's shaft sleeve is integrated in the mechanical seal.

Further technical information for 4KBL