F 550 GS

Progressive cavity drum and IBC pump suitable for liquids from 1 to 30,000 mPas

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F 550 GS is known as a progressive cavity or eccentric worm drive pump, suitable for handling low to medium viscosity media. The pump develops a smooth flow at a constant pressure, offering low shear, pulsation-free liquid transfer. The pump is portable, but can also be used in fixed installations. Very easy to disassemble for maintenance and cleaning, with few moving components.  F 550 GS can handle hard and soft solid particles up to 8 mm in diameter.  Fitted with planetary gearbox, requires FLUX single phase electric or compressed air motor.

  • Application areas: Atex  

Technical data:

  • Flow rate: max. 50 l/min1
  • Flow pressure: max. 8 bar1
  • Delivery head: max. 80 mwc1
  • Viscosity: min. 1 mPas - max. 30000 mPas1
  • Outer tube diameter: min. 50 mm - max. 54 mm2
  • Immersion length: 700, 1000, 1200
  • Materials outer tube: Stainless steel
  • Media / Fluids: Solvents, Petroleum products, Thin media, Highly flammable media
  • Seal: open mechanical seal
  • Container: Tanks > 1000 liters, 1000 l IBC, 200 l drums
  • 1 dependent on pump model, motor and medium
  • 2 dependent on pump model

Product attributes

  • Positive displacement pump
  • Pulsation free, low shear pumping action
  • Rotors available for abrasive media
  • Stators available in PTFE, FKM and NBR materials
  • Can be used with fixed or variable speed drive motors
  • 316 L stainless steel construction
  • Max pressure 8 Bar
  • Max flow 50 LPM depending on viscosity and drive motor



  • Wide viscosity range
  • Optimal for viscous self-flowing liquids
  • Suitable for shear-sensitive liquids
  • Transfers at constant pressure
  • Suitable for fixed and variable speed motors
  • Easy to disassemble for cleaning and maintenance
  • High efficiency
  • Versions available with ATEX certification
  • Special model F 550 GS 6 for liquids up to max. 80 000 mPas