Suitable for KSB's KWP Bloc pump 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 130 °C


Special bi-directional single mechanical seal
for seawater applications. The pump's shaft sleeve is integrated in the mechanical seal.

Stationary design, balanced, 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.

The ribs on the shaft sleeve support circulation of the fluid handled in the clearance between the impeller and the pump casing.

Further technical information for 4KTM