FP 430 pump with mechanical seal

The ultimate low maintenance pump

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A world leading Flux design, the highly regarded F 430 drum pump can be used for transferring liquids from small containers, drums, IBCs, vessels or tanks. Two piece construction with mechanical seal ensures the pump can be disassembled into its two main components for cleaning and maintenance in seconds. The mechanical seal stops liquid entering the inner tube. This minimises risk of cross-contamination when transferring the pump between different liquids. The pump can also be used for handling abrasive, crystallizing or high temperature liquids.

Flux F 430 models in polypropylene and PVDF are the most robust pumps of their type, due to their unique steel re-inforced overmoulded inner tubes. The steel cored inner tube also provides optimal support for the mechanical seal, preventing leakage and unnecessary wear across the complete operating temperature range. In addition, the F430 barrel pump is fitted with 5 brass shaft support bearings, providing optimal driveshaft support and resistance to vibration. Special immersion lengths up to 3000 mm are available for sump emptying. Versions in stainless steel and Hastelloy C are ATEX approved for use in hazardous areas . The stainless steel F 430 pump is also available as FOOD certified version.

  • Application areas: Atex  
  • Application areas: Food  
  • Application areas: FDA  

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 mm - max. 50 mm2
  • Immersion length: 700, 1000, 1200
  • Materials outer tube: , , Stainless steel, Hastelloy C, Polyvinylidene fluoride
  • Media / Fluids: Acids, Alkalis, Petroleum products, Highly flammable media, Solvents, Fuels, Aqueous salt solutions
  • Seal: with mechanical seal
  • Container: 200 l drums, 1000 l IBC, Tanks > 1000 liters
  • 1 dependent on pump model, motor and medium
  • 2 dependent on pump model

Product attributes

  • Mechanical seal ensures liquid cannot enter inner tube
  • Class leading performance in high temperature applications
  • Handles abrasives and solid particles with minimal wear
  • Easy disassembly into two parts: complete inner tube with impeller and outer tube
  • Steel cored inner tube on PP and PVDF models for optimal strength and bearing support
  • 5 heavy duty brass bearings for optimal driveshaft support and stability
  • 50 mm diameter option for high flow applications
  • Screw-on foot piece for fast disassembly
  • Robust ETFE impellers fitted as standard
  • ATEX pumps for use in hazardous areas available
  • FOOD version available
  • Grease-lubricated shaft bearing
  • Can be combined with various motors as required


  • Ideal for frequent medium changes, hardening media, solid particles, fast drying media, crystallizing media
  • Minimal cross contamination when transferring between liquids
  • Top pull out inner tube – inner tube and impeller can be removed in one piece
  • Rapid disassembly for cleaning and maintenance
  • All parts available as spares – longest service life
  • Much higher service life with abrasive liquids when compared to seal-less pumps
  • Reinforced inner tube on plastic models prevents leakage and unnecessary mechanical seal wear across all operating temperature ranges.
  • High stability design allows immersion lengths up to 3000 mm
  • 5 heavy duty bearings provide optimal shaft support
  • Recessed motor coupling is protected from damage when motor is removed
  • Temporary operation again closed valve (hand nozzle, ball valve etc.) is possible until max. indicated operating temperature
  • Very quiet operation with low vibrations
  • ATEX pump in stainless steel and Hastelloy C can be used in hazardous areas
  • FOOD version conforming to EC 1935/2004 and FDA CFR 21 available