Flux Pumps FES 800 Chemical Drum Pump – Compact, Seal-Less & Vapour-Safe

• Pump type: Flux F 424 PP-41/36, seal-less 

• Outer tube material: Polypropylene (PP) 

• Driveshaft: Hastelloy C reversible driveshaft with 6 mm diameter for maximum vibration resistance 

• Inner tube: Reinforced PP with unique PTFE spiral bearing 

• Impeller: ETFE axial (high-flow) impeller 

• Immersion length: 800 mm for small containers or hobbocks 

• Outer tube diameter: 41 mm

• Motor type: FEM 4070, brushed commutator, variable speed 

• Power supply: 230V 50Hz 

• Ingress protection: IP24 

• Power rating: 500W 

• Duty cycle: S1 continuous duty 

• Housing type: Single-wall, internally cooled, double insulated 

• Housing material: Polyamide 

• Cable length: 5 m 

• Plug type: UK 3-pin plug adaptor included 

• Alternative 110V motors and air motors available on request 

• Hose: PVC, DN19, 2 m length 

• Hand nozzle: Polypropylene hand nozzle with FKM seals 

• Compression gland: FES fume gland for vapour control, suitable for plastic drums with G57x4 female threaded bunghole. 

• Max flow rate: Approx. 60 LPM¹ 

• Max discharge pressure: Approx. 9.5 mwc 

• Maximum liquid temperature: 50 degrees C 

• Max density: Approx. 1.5 kg/L 

• Max viscosity: Approx. 600 mPas 

• Solids: Not suitable for large quantities of solid particles (see Flux F 430) 

*Measured using water at 20°C with nozzle and hose attached. 

1. Seal-less design for maximum reliability

Firstly, the F 424’s seal-less configuration completely eliminates the requirement for a mechanical seal. Importantly, this design reduces maintenance requirements and risk of failure through accidental dry running. Additional benefits include lower risk of leakage, media contamination and unplanned downtime. Furthermore, this design contains no wetted o-rings, thereby providing worry-free compatibility with a range of corrosive fluids. 

2. Advanced internal bearing system for long service life

Inside the inner tube, our unique PTFE spiral bearing provides consistent shaft support over a wide surface area. This spiral arrangement enhances vibration damping and ensures minimal shaft deflection even under heavy loads, extending both shaft and bearing lifespan. Additionally, the lower bearing housing is oversized when compared to competitor’s pumps. This consequently provides enhanced axial stability under dynamic loads, prolonging service life. 

3. High-flow axial impeller for rapid fluid transfer

The ETFE axial impeller delivers flow rates up to 60 LPM, with the discharge hose and hand nozzle connected. This makes it ideal for quick, efficient emptying of small containers such as hobbocks, or 60L drums. The variable speed motor allows the operator to reduce the flow rate if needed, to prevent splashing and reduce turbulence during filling. 

4. Reversible Hastelloy C driveshaft

The high strength, corrosion-resistant 6 mm Hastelloy C shaft offers outstanding performance against aggressive media such as oxidising acids and alkaline cleaners. Its reversible design provides a second wear surface, thereby doubling operational lifespan and delivering superior return on investment in harsh environments. 

5. Integrated vapour management system

The FES fume gland (suitable for containers with G57 x 4 female bungholes), provides a reliable barrier against hazardous vapour emissions. This is useful when working with corrosive liquids that are hazardous to health, helping maintain local air quality and protecting the operator from inhalation exposure. 

6. Compact and portable 

With its lightweight polypropylene construction, this kit is consequently ideal for mobile use in smaller processing areas, mobile cleaning stations or laboratories. The optimised centre of gravity ensures the drum remains stable during use.  

7. Flexible, modular configuration

Finally, alternative O-ring materials, motor voltages (110V), and compressed air drive options are available to meet specific site requirements. Furthermore, the modular design allows for future upgrades with minimal outlay.  Flux aims to offer products with the lowest whole-life cost, hence all parts are available to buy as spares, for extended service life. 

• Compatible with sodium hypochlorite, hydrogen peroxide, potassium hydroxide and alternative cleaning agents used in CIP (Clean-In-Place) systems 

• Transfer of surface and equipment disinfectants in food, pharma or cosmetic and other hygiene-critical sectors 

• Excellent for batch preparation or sample transfer in analytical chemistry and process development environments 

• Ideal for decanting concentrated detergents or degreasers into spray bottles or dilution stations in industrial maintenance services 

• Used for transferring engine bay cleaner, traffic film remover and brake dust remover in auto workshop settings 

• Suitable for pumping conditioning and disinfection chemicals used in water purification and wastewater treatment applications. 

The Flux FES 800 chemical drum pump for cleaning agents is ideal for transferring a range of pure, non-crystallising liquids, including: 

• Acids such as hydrochloric and dilute sulphuric 

• Alkalis such as sodium hydroxide and sodium bisulphate 

• Chlorine bleach (sodium hypochlorite) 

• Cleaning and disinfecting chemicals 

• Compact immersion length ideal for 60-litre hobbocks 

• Integrated fume gland minimises vapour escape 

• Fully corrosion-resistant construction with high-strength 6 mm Hastelloy C driveshaft 

• Withstands short-term dry running 

• Long service life, with low noise and vibration thanks to unique spiral bearing 

• Tool-free disassembly with screw-on foot piece for ease of servicing. 

• Fully serviceable with all spare parts available 

• Made in Germany 

Learn more about our Flux chemical pumps for cleaning agents and disinfectants.

Lastly, view our full range of pre-assembled pump kits here.