Drum pump sealless

F 424 / FP 424

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The sealless Drum pump F/FP 424 is ideal for transferring various low-viscosity, also aggressive media. It is suitable for media that flow quickly and neither bond, crystallize nor are abrasive. With this pump you can empty drums, IBCs and also basins. Distinct feature, only at FLUX: The specific construction with spiral-shaped guide bearing in the inner tube prevents unwanted deposits in the pump and increases the service life significantly. The pump is available in stainless steel, polypropylene or polyvinylidene fluoride. The F/FP 424 in stainless steel can also be used in hazardous areas.


  • Application areas: Ex  

Technical data:

  • Flow rate: max. 240 l/min1
  • Delivery head: max. 30 mwc1
  • Viscosity: min. 1 mPas - max. 1200 mPas1
  • Outer tube diameter: min. 40 mm2 - max. 50 mm2
  • Immersion length: 700, 1000, 1200
  • Materials outer tube: Polypropylene, Polyvinylidene fluoride, Stainless steel
  • Media / Fluids: Acids, Alkalis, Petroleum products, Highly flammable media, Solvents, Fuels, Aqueous salt solutions, Aggressive media
  • Seal: sealless
  • Container: Small containers, Hobbocks, 200 l drums, 1000 l IBC
  • 1 dependent on pump model, motor and medium
  • 2 dependent on pump model

Product attributes

  • No seal in the liquid area
  • Long spiral-shaped guide bearing
  • Multiple beared drive shaft
  • Radial shaft seals prevent the intrusion of vapours and liquid in the coupling area
  • Versions for the operation in hazardous area available
  • Version free of non-ferrous metal for transferring AdBlue® available
  • Can be combined with various motors as required


  • No seal wear
  • Optimal emptying of the inner tube
  • High service life
  • Low wear of guide bearing and shaft
  • Long life circle of bearings
  • Particularly suited for hydrochloric acid and chromic acid
  • Can be temporarily operated against closed valve (hand nozzle, valves etc.) until the indicated temperature of the materials is reached
  • Low vibration
  • Stainless steel version for use in hazardous area
  • Versions for use with AdBlue® also available
  • Also available in High Temperature (HT) version up to 60°C (140°F)