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The F 400 heavy duty barrel pumps are class-leading, low-maintenance solutions for handling liquids with a viscosity of up to 1000 mPas. Flux manufactures several F 400 pump designs, each available in different lengths. Additionally, every Flux barrel pump consists of two key components – the pump and the motor. This modular approach ensures we can offer the right solution for every application.
A barrel pump is used to safely and efficiently transfer liquids from barrels, drums and 1000 litre IBC containers. Furthermore, heavy duty barrel pumps help prevent spills, reduce manual handling and when coupled to a suitable flowmeter, ensure accurate liquid dispensing. They are suitable for pumping high and low viscosity media of every conceivable type. Common barrel pumping applications include:
Combine your Flux drum pump with a suitable motor. Explore our motor options:
A seal-less, high-flow drum barrel pump designed for transferring pure liquids. Thanks to its unique spiral bearing, reversible 6 mm driveshaft and oversized PTFE bushings, it provides the longest service life by reducing vibrations that destroy lesser drum pumps.
The seal-less design allows limited dry running, making the F 424 ideal for continuous, heavy-duty industrial use.
Barrel drum pump with selectable mixing function. Use this pump for mixing liquids in barrels and IBC containers, then switch to pumping mode to empty the mixed product.
Available in both polypropylene and stainless steel (with Ex- approvals) with a choice of o-ring materials.
The toughest barrel pumps with mechanical seal, available in a choice of five materials. Suitable for handling pure, solids-entrained, crystallizing and abrasive fluids. Plastic pumps are constructed with unique steel‑cored, over-moulded inner tubes, providing exceptional strength, vibration resistance and seal stability. F 430 is the benchmark when considering fully serviceable barrel pumps.
Features an integrated back‑flow valve that prevents liquid from draining back into the barrel, providing up to 99.9% product recovery.
This pump is especially useful for handling high‑value liquids, when waste must be minimised.
Furthermore, F 425 is the safest choice when pumping corrosive and hazardous liquids .
Seal-less sanitary grade pump with quick-release shaft bearings, enabling rapid disassembly for cleaning. Designed for pumping food ingredients, beverages and pharmaceutical products and suitable for sanitization in high temperature autoclave.
Moreover, these pumps are available with US FDA, European food approvals or 3A approvals for pharmaceutical applications.
A highly compact, portable stainless-steel pump designed for direct connection to low-level IBC (or tank) outlet valves. Ideal for liquid transfer operations where space is limited or overhead container access is restricted.
Despite its compact dimensions, Miniflux delivers the same high flow rates as our vertical F 400 series models.
Heavy duty barrel pumps can be used in open containers and tanks, drums with removeable lids and closed-top (tight-head) drums.
Choosing the right barrel pump depends on several factors such as:
Consulting with a pump specialist will help ensure you select the most suitable model. Call us to discuss your application today.
Read more on the use of barrel and drum pumps in our handy article here.
Each F 400 series pump connects to the drive motor via a quick-release union nut. This compact union nut design uses a simple circlip to attach to the pump, therefore minimising the risk of accidental damage if you drop the pump tube.
You can use different drive motors with the same barrel pump, thus allowing quick motor removal and replacement.
The union nut also enables one motor to operate multiple pump tubes. This cost-effective solution guarantees safe handling of different liquids without risk of cross-contamination. For more details on motor options and pump selection guidance, please visit our dedicated motors and technical support pages.
Please call us on 01202 823304 or email sales@flux-pumps.co.uk for assistance
Flux F400 pumps provide unmatched durability and performance, thanks to unique, patented design features, serviceability and superior materials. Every Flux model is designed to eliminate driveshaft vibrations that destroy lesser drum pumps. Examples include the F 424 pump with spiral shaft bearing, or the F 430 plastic models with steel‑cored inner tubes.
Such innovations deliver quantifiably longer service life and thus lower whole‑life costs than competitor pumps. Learn more on our Drum & Barrel Pump Useful Information page.
Assembly is simple: place the motor on the pump tube, hand‑tighten the union nut, attach the hose connection and discharge hose and ensure correct earth bonding is in place, if required. Place the assembled pump unit into the drum or IBC and connect to the power supply.
Full assembly steps are available on our Drum & Barrel Pump Useful Information page.
Once the assembled pump is placed in the container, switch on the motor to begin liquid transfer; flow starts immediately and can be controlled via a hand-operated dispense nozzle, or variable‑speed motor. Consider accessories such as compression glands, lifting hoists and non‑return valves to manage residual liquid and improve manual handling.
See detailed operating guidance on our Drum & Barrel Pump Useful Information page.
Centrifugal pumps cease to function once the liquid level drops below the impeller. Reduced load on the impeller causes motor speed to rise. At this point, the pump should be switched off to avoid dry running. Consider the FBM 4100 battery motor with selectable dry-run protection, if required. For near‑total barrel emptying, the F 425 model with back‑flow valve removes up to 99.9% of the liquid.
Read more about emptying performance on our Drum & Barrel Pump Useful Information page.
Flux F400 heavy‑duty barrel pumps are used in almost every sector, but they are particularly common in the following industries: chemicals, cosmetics, pharmaceuticals, food & beverage, water treatment and oil & gas. The range of materials and certification options available make them suitable for a huge variety of applications.
Visit our pump by industry page, to find your industry and consequently the Flux pumps we recommend for your specific applications.
Explore our shop to find the right F 400 series barrel pump for your requirements, view our pump selection guide, or contact us for expert advice.
