The AESSEAL CSS™/CSSN™ range of cartridge mechanical seals has been designed as high-performance sealing solutions for general applications.


These products build on over a decade of proven performance from the AESSEAL CURC™ and CDSA™ range of seals. They combine this with cutting-edge manufacturing techniques to represent the best value-for-money sealing solutions available today.


  • Multi-spring design–  Alloy 276 helical coil springs ensure accurate uniform seal face loading throughout seal life 
  • Reliable drive –Drive screws clamp directly on to shaft or sleeve to minimise drive loss
  • Modular seal face design –Hydraulically-balanced seal face esign ensures optimum fluid film during process fluctuations
  • Captured rotary O-ring – Captured O-ring design prevents extrusion under vacuum conditions