Axial flow pumps

Save space and reduce installation costs with the AFLX range of submersible axial-flow pumps, designed for direct installation in discharge pipes. Featuring highly efficient three- to five-blade mixed-flow impellers. Impeller design with low NPSH characteristic. They ensure high reliability and efficiency.

AFLX pumps are intended for large flows and moderate heads. Their open type mixed-flow impellers ensure trouble-free pumping of liquids containing solids. The compact units are lowered into standard steel tubes and need no anchoring, as their own weight is sufficient to hold the units securely in position, using the well-proven SULZER coupling ring. The robust design and quality materials ensure high operational reliability and hydraulic efficiency up to 88%.

  • Pumps up to size AFLX 800 are equipped with premium-efficiency IE3 motors ranging between 7.5 to 400 kW
  • The AFLX 1200-size pump is partly equipped with IE3 motors
  • Pumps with higher power (up to 650 kW / 50 Hz and 700 kW / 60 Hz) are driven by M9-size
    motors and optinally equipped with planetary gear boxes

Main benefits

  • Premium-efficiency IE3 motors ranging from 7.5 - 400 kW
  • Equipped with highly efficient three- to five-blade open type mixed-flow impellers
  • Mixed-flow impellers with Low-NPSH design
  • Designed for direct installation in the discharge pipe or in the concrete risers to save space and reduce installation costs, using the well-proven coupling ring
  • Improved energy savings
  • Long-term reliability

Main applications

  • Clear water
  • Storm water
  • Land drainage
  • Flood protection
  • Wastewater from commercial and industrial sources
  • Sewage containing solids

Main design features

Common features for all models:

  • Class H (140°C / 284°F) insulation
  • Explosion-proof version as option (ATEX, FM or CSA)
  • 100 000 hours bearing life
  • Double mechanical seal
  • Seal protection against spinning fibers
  • Sealed cable connection chamber with two stage cable entry
  • Lifting hoop (stainless steel as option)
  • Planetary gearboxes, driven by four-pole motors, deliver higher efficiency and lower weight compared to high-pole motors

Additional design features of PE4 to PE6 motors:

  • Premium efficiency IE3 motors ranging from 7.5 - 400 kW
  • Premium efficiency IE3 motors in acc. with IEC 60034-30
  • Temperature rise according to NEMA Class A up to 110 kW / 168 hp and Class B above
  • Double silicon carbide (SiC/SiC) mechanical seals
  • Condition monitoring (temperature, water ingress, option: vibration monitoring)

M8/9 motors:

  • Condition monitoring (temperature, water ingress, option: vibration monitoring)
  • Planetary gearboxes driven by four-pole motors provide higher power for excellent efficiency

Key characteristics

Discharge sizes: DN 600  to DN 1200