Flux F 430 Barrel Kit | Drum Pump for Acid and Alkali Transfer

• Pump type: Flux F 430 PP-40/33 with ceramic-oxide mechanical seal 

• Outer tube material: Polypropylene (PP) 

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

• Inner tube: PP over-moulded steel core for enhanced structural integrity 

• Impeller: ETFE axial impeller 

• O-rings: FKM  

• Immersion lengths: 1000 mm (for 200-220 L drums) and 1200 mm (for IBCs) 

• Outer tube diameter: 40 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 adaptor included 

• Alternative 110V motors and compressed air motors available on request 

• Hose: PVC, DN19, 2 m length 

• Hand nozzle: Polypropylene and PTFE with FKM o-rings 

• Compression gland: Polypropylene, G2″ male thread  

• Max flow rate: Approx. 40 LPM1 

• Max discharge pressure: 1.5 bar 

• Maximum liquid temperature: 50 degrees C 

• Max density: Approx. 1.5 kg/L  

• Max viscosity: Approx. 600 mPas 

• Dry run limitations: Not suitable for extended dry-running – see model FP 424 for applications requiring dry-run capability 

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

Corrosive fluids present significant pumping challenges—therefore safety, material compatibility, leakage control and long-term durability are critical. The Flux F430 is: 

1. Engineered for aggressive media

Firstly, the F430’s strength lies in its materials of construction. The steel-cored polypropylene inner tube provides excellent strength and resistance to acids and alkalis, while the 6 mm diameter Hastelloy C driveshaft ensures superior mechanical strength and corrosion resistance against oxidising or chlorinated media. This combination allows safe handling of dilute sulphuric, phosphoric, hydrochloric, boric and fruit acids, amongst others. 

2. Advanced impeller for optimised flow

The ETFE axial impeller is designed for handling low-viscosity media, delivering high volumetric flow while maintaining low energy demand and minimising turbulence. Its geometry delivers stable, pulsation-free flow, thereby enhancing fluid control during dispensing or dosing. 

3. High integrity mechanical seal

Equipped with a precision engineered ceramic-oxide mechanical seal with FKM O-ring, the pump consequently offers robust protection against leaks and chemical attack. This sealing configuration effectively isolates critical internal components from solids-laden or crystallising fluids, thereby extending service life and protecting the operator. 

4. Tool-free maintenance and cleaning

Furthermore, the F430 is designed for rapid disassembly without the use of specialised tools. This facilitates fast cleaning, reduces downtime between media changes and further simplifying routine maintenance tasks. The sealed inner tube prevents fluid ingress and reduces the wetted area, improving drainage and therefore maintaining product quality. 

5. Extended service life through enhanced bearing design

The pump utilises multiple oversized, vibration-resistant shaft bearings—five bearings for 1000 mm tubes and six for 1200 mm versions. These provide axial support and absorb radial forces, thereby reducing wear and mechanical stress. This results in smooth operation, lower noise emissions and additionally, extended service intervals. 

• Dosing hydrochloric acid, sodium bisulphite or sodium hypochlorite in water treatment plants 

• Transferring phosphoric acid solutions in pharmaceutical manufacturing 

• Decanting alkali solutions and disinfection agents for industrial cleaning processes 

This kit is ideal for transferring the following acids and chemical solutions, however please consider concentration and temperature conditions: 

• Phosphoric acid – up to 50% concentration 

• Hydrochloric acid – up to 30% concentration 

• Sulphuric acid – up to 40% concentration 

• Boric acid 

• Fruit acids (e.g. citric, malic) 

• Alkali solutions (optional EPDM o-rings available on request) 

Always confirm compatibility via chemical resistance charts or consult Flux Pumps UK for technical support. 

• Modular design – fully serviceable with spare parts readily available 

• Non-metallic wetted components, Hastelloy shaft and FKM o-rings ensure resistance to a broad range of chemicals 

• Unique Flux steel-cored inner tube, over-moulded with PP, delivers exceptional vibration resistance 

• Oversized bearings and tool-free disassembly reduce servicing requirements 

• Sealed inner tube reduces wetted area, therefore minimising cross-contamination  

• Ideal for switching between different liquids 

• Suitable for crystallising liquids and liquids with abrasive particles 

• Made in Germany 

Finally, view all pre-assembled Flux Pump Kits here.