F424 Sealless Pump

Sealless design

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The sealless F/FP 424 is ideal for transferring various low-viscosity and aggressive media. It is suitable for free-flowing liquids that are clean and non-abrasive. Best paired for use with drum, totes, IBCs, etc. (custom lengths are available upon request). The distinct FLUX advantage lies in spiral-shaped guide bearing in the inner tube which prevents a build-up of media in the pump and increases the service life significantly. The pump is available in stainless steel, polypropylene or polyvinylidene fluoride (PVDF). The F/FP 424 in stainless steel can also be used in explosion proof environments.

  • Application areas: Atex  

Product attributes

  • Sealless pump design means no seal wear
  • Long spiral-shaped guide bearing and steel cored inner tube promote long service life
  • Extended bearing life due to radial shaft seals prevent corrosive vapors and liquid in the coupling area
  • ATEX versions for use in hazardous areas
  • Can be temporarily operated against a closed valve, hand nozzle, etc.
  • Special construction available for transferring AdBlue®DEF fluid
  • Can be paired with all 4 Series FLUX motors


Technical Data

  • Flow Rate: max 63 GPM
  • Delivery Head: max 98 ft
  • Viscosity: <1 - 1200 cPs
  • Outer Tube Diameter: 40 mm - 50 mm 
  • Standard Immersion Lengths: 27, 39, 47, 60 in (700, 1000, 1200, 1500 mm)
  • Materials of Construction: Polypropylene, Polyninyldene fluoride (PVDF), Stainless Steel
  • Temperatures to 212°F (100°C)
  • Fluid Examples: Acids, Alkalis, Petroluem products, Flammables, Solvents, Fuels, Aqueous salt solutions, Aggressive chemicals
  • Seal: sealless
  • Containers: Small containers, Hobbocks, 55 Gal Drums, totes, IBCs