Suitable for KSB's Etanorm SYT, Etabloc SYT, Etaline SYT


  • Heat transfer engineering and hot water recirculation


  • Single acting mechanical seal

Technical Data

  • Operating pressure:
    • Up to 16 bar dynamic
    • Up to 24 bar static
  • Temperature: up to 350 °C (in combination with pump design)


The axial spring force is evenly distributed over the entire circumference of the primary ring. This minimises wear and contributes to a long seal life.

Open design of the area around the springs to prevent the springs from being blocked by deposits.

Large dynamic O-ring; flexible and less sensitive to start-up conditions. High resistance to modern, synthetic thermal oils.