Suitable for KSB's Sewatec / Sewabloc /Amarex KRT pump type series


  • contaminated waste water


  • Double cartridge seal

Technical Data

  • Operating pressure: 
    • Up to 10 bar, dynamic
    • Up to 16 bar, static
  • Temperature: 0 °C to 70 °C


Double mechanical seal in tandem arrangement, can be installed as one unit.

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

The modular design facilitates installation without assembly fixtures or adjusting dimensions, ensuring optimal pre-loading of the mechanical seal and low wear.

4STQ - Mechanical Seal