Flux Drum & Barrel Pumps
Flux practically invented the modern drum pump—and they still lead it. From fast, clean transfer of acids, solvents, and CIP chemicals to near‑complete drum emptying of peanut butter‑thick products, Flux’s modular system lets you pair the right pump tube (F 400 / F 425 / F 430, COMBIFLUX, VISCOFLUX) with the optimal electric or air motor, plus options for ATEX (explosion‑proof) and FDA/food‑grade compliance.
Unsure whether you need a sealless chemical tube (F 425), a progressive cavity tube (F 400) for viscous fluids, or a VISCOFLUX system to fully empty 55‑gallon drums of extremely thick media? Talk to a Flux pump engineer—most quotes leave our inbox within one business hour.
Quick Selector: Flux Drum & Barrel Pump Families
| Series / System | What It Is | Viscosity Range (typ.) | Typical Max Flow* | Materials / Options | Best For |
|---|---|---|---|---|---|
| F 425 (Sealless) | Sealless chemical transfer tube with circulation system (no product in motor) | ~1–1,000 cP (thin to medium) | Up to ~25–30 GPM (series‑dependent) | PP, PVDF, 316SS; ATEX versions | Acids, alkalis, solvents, CIP chemicals |
| F 430 (Mechanical Seal) | High‑versatility tube with mechanical seal (motor side stays clean) | ~1–2,000 cP | Up to ~30+ GPM (series‑dependent) | PP, PVDF, 316SS; ATEX & food‑grade options | General drum transfer with better sealing |
| F 400 (Progressive Cavity) | Positive displacement tube for viscous media (constant flow, low shear) | Up to ~100,000 cP+ | Up to ~10–15 GPM (viscosity‑dependent) | 316SS / sanitary variants; food‑grade elastomers | Viscous oils, resins, creams, syrups |
| VISCOFLUX / VISCOFLUX lite | System for nearly complete 200 L (55‑gal) drum emptying of ultra‑viscous products | Very high (paste‑like, non‑flowing) | Series‑dependent (focus is complete emptying, not max flow) | Hygienic designs, food‑grade, ATEX options | Peanut butter, tomato paste, creams, ointments, adhesives |
| COMBIFLUX | Compact tubes + lightweight motors for small containers & drums | Low to medium | Up to ~10 GPM (model‑dependent) | PP, PVDF, 316SS | Lab, OEM skids, totes, 5–55 gal drums |
*Performance varies by tube length, motor speed, fluid viscosity, SG, and discharge head. We’ll confirm against your exact duty.
Flux Motors (Pair With Any Tube)
- F 457 / F 458: Commutator motors (F 458 with speed control)
- F 460 Ex / Air Motors: ATEX / hazardous area & variable speed via air regulation
- Brushless / Frequency‑controlled Motors: High efficiency, precise speed control, low maintenance
Why (and When) Flux Drum & Barrel Pumps Win
- Modular: one motor can run multiple tubes (cut total cost of ownership)
- Sealless, mechanically sealed, or progressive cavity—match the chemistry & viscosity
- ATEX (explosion‑proof) & FDA/food‑grade configurations available
- VISCOFLUX systems empty high‑viscosity drums with minimal residue (cost savings)
- Low shear, constant flow options for sensitive or high‑value products
How We Specify Flux Drum Pumps (So You Don’t Cook Motors or Shred Stators)
1) Fluid Properties & Duty
We size on viscosity (cP), SG, temp, abrasives, and chemical compatibility, then choose PP, PVDF, 316SS, or **hygienic** tubes. For viscous fluids, we’ll specify a progressive cavity or VISCOFLUX system.
2) Flow, Head & Motor Torque
We select the **correct tube length & diameter**, then match **motor torque & speed** to your flow target, ensuring you won’t stall or overheat on higher viscosities.
3) Safety, Compliance & Cleanability
For flammables or hazardous areas we use **ATEX motors/tubes**. For food, pharma, and cosmetics we’ll specify **FDA/3‑A style materials, polish, and cleanability**—or a **VISCOFLUX hygienic** setup.
4) Accessories That Make Operations Easier
From flow meters, discharge hoses, drum adapters, pulsation dampeners to quick‑connect sanitary fittings, batch controllers, and speed drives—we’ll ship you a complete kit.
Common Drum & Barrel Applications We Solve with Flux
- Chemicals – acids, alkalis, solvents, CIP chemicals
- Food & Beverage – syrups, honey, tomato paste, oils, concentrates
- Cosmetics & Personal Care – creams, gels, lotions, waxes
- Paints, Coatings & Adhesives – resins, inks, viscous bases
- Pharma / Nutraceutical – high‑value, shear‑sensitive products
Parts, Tubes & Accessories
- Replacement pump tubes (PP, PVDF, 316SS, progressive cavity)
- Mechanical seals, stators/rotors, O‑rings (EPDM, FKM, PTFE)
- Explosion‑proof & brushless motors, speed controllers
- Drum adapters, sanitary tri‑clamp adapters, hoses & nozzles
- Flow meters, batch controllers, pulsation dampeners
- VISCOFLUX drum follower plates & hygienic kits
Send your viscosity, SG, chemistry, target flow/head & compliance needs (ATEX/FDA). Quotes usually in < 1 hour.
Flux Drum Pump FAQs
F 425 vs. F 430—what’s the difference?
F 425 is sealless (liquid recirculates to keep it out of the motor side), ideal for aggressive chemicals. F 430 uses a mechanical seal for better containment and versatility across a wider fluid range.
When do I need a progressive cavity (F 400) or VISCOFLUX system?
Choose F 400 when you need a **constant flow, gentle, low‑shear** transfer of **high‑viscosity** liquids. Use VISCOFLUX / VISCOFLUX lite when you must **nearly completely empty a 55‑gal drum** of **non‑free‑flowing, paste‑like products**.
Can I use one Flux motor with multiple pump tubes?
Yes. That’s a core advantage of the Flux modular system—swap tubes to match chemistry or viscosity, reuse the same motor to lower cost.
Do you offer ATEX (explosion‑proof) Flux drum pumps?
Absolutely. We supply **ATEX‑rated motors and tubes** for flammable or hazardous atmospheres, along with compliant accessories (grounding, antistatic hoses).
How do I know which material—PP, PVDF, or 316SS—to pick?
We’ll match your **chemical SDS, temperature, and viscosity** to the right wetted materials. PP/PVDF for corrosives, 316SS for solvents, oils, food/hygienic service, or higher temps.