Flux F 425 Ex S Kit: Drum Pump For Flammable Liquids | 99.9% Drum Emptying

The Flux F 425 Ex S drum pump kit is an ATEX-certified, heavy-duty electric pumping solution. This pump kit is engineered specifically for pumping flammable liquids, solvents and petroleum-based media from drums and IBCs. The pump leaves less than 0.05 L of residual liquid in a 200 L drum. This design makes it ideal for handling high-value or hazardous liquids. The built-in, manually operated non-return valve should be closed before the pump is removed from the container. Therefore, ensuring that retained liquid does not drain back. This drum pump for flammable liquids also meets ATEX safety standards. It is suitable for use in Zoned areas that may contain explosive vapours. Moreover, the pump uses premium 316 L stainless steel, a PTFE non-return valve, and FKM o-rings. These materials ensure compatibility with corrosive solvents and petrochemicals. You can upgrade the O-rings to FFKM if needed. The ceramic-oxide mechanical seal blocks abrasive particles and volatile media from entering the inner tube. The powerful F 460 Ex IP 55 continuous-duty motor delivers consistent and reliable operation. This 99.9% emptying drum pump kit comes with a pre-assembled 2 m conductive hose, swaged stainless steel hose connections, and a hand nozzle for ease of use. Additionally, the kit includes an earth cable and a compression gland to secure the pump in the container for immediate operation. These features make it the ideal solution for fuel transfer, chemical processing, additive pumping, and solvent dispensing.

Part numbers available

The following part numbers are available on our online shop:

• 10-46025010
• 10-46025012

• Pump type: Flux F 425 Ex S-41/34 with ceramic-oxide mechanical seal and PTFE foot valve. ATEX Zone 0/1 approved. 

• Outer tube material: Stainless steel 316 L 

• Driveshaft: 6 mm diameter stainless steel 316 L for maximum vibration resistance 

• Inner tube: Stainless steel 316 L 

• Impeller: ETFE axial impeller 

• O-rings: FKM (FFKM o-rings available on request) 

• Immersion lengths: 1000 mm (200-220 l drum) or 1200 mm (1000 l IBC) 

• Outer tube diameter: 41 mm 

• Foot valve: Manually operated PTFE non-return valve 

Motor type:

F 460 Ex, brushed commutator motor, fixed speed. ATEX Zone 1/2 approved 

• Power supply: 230V 50Hz 

• Ingress protection: IP55 

• Power rating: 460W 

• Duty cycle: S1 continuous duty 

• Housing type: Double wall, externally cooled, double insulated 

• Housing material: Aluminium with corrosion resistant paint 

• Cable length: 5 m  

• Plug type: UK 3-pin plug adaptor supplied 

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

• Hose: Universal chemical hose, DN21, 2 m, with stainless steel swaged fittings 

• Hand nozzle: Stainless steel Ex hand nozzle with PTFE/ FEP seals 

• Compression gland: Conductive PP, G 2″ male thread 

• Also includes: Flux- Clip and earth ground wire, 2 m length 

• Max flow rate: Approx. 40 LPM¹ 

• Max delivery head: 8 mwc 

• Maximum liquid temperature: 100 degrees C (max 40 degrees C in ATEX Zoned areas) 

• Max density: Approx. 1.5 kg/L 

• Max viscosity: Approx. 600 mPas 

• Compliance: Suitable for use in hazardous areas (ATEX certified) 

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