flux worm drive drum pump

A Flux worm drive drum pump is a specialized type of positive displacement pump designed for transferring highly viscous, abrasive, or shear-sensitive fluids (like adhesives, greases, resins, and pastes) from drums, barrels, or containers. The worm drive (or screw pump) mechanism ensures smooth, pulsation-free flow, making it ideal for thick or sticky materials.

Key Features of Flux Worm Drive Drum Pumps

High-viscosity handling – Can pump fluids up to 1,000,000 cP or more.
Gentle pumping action – Low shear, ideal for sensitive materials.
Robust construction – Often made of stainless steel, hardened steel, or PTFE-coated parts for durability.
Manual or motorized operation – Some models are hand-cranked, while others use electric/pneumatic drives.
Self-priming – Works well with thick fluids that other pumps struggle with.

Main Components of a Flux Worm Drive Drum Pump

1. Worm (Screw) Shaft

• The central rotating screw that moves fluid along its threads.

• Made of hardened steel, stainless steel, or PTFE-coated for corrosion resistance.

2. Stator (Elastomer Lining)

• A rubber or synthetic sleeve (often NBR, EPDM, or FKM) that fits around the worm shaft.

• Creates sealed cavities for smooth fluid displacement.

3. Drive Mechanism

• Manual crank handle (for hand-operated models).

• Electric/pneumatic motor (for automated versions).

4. Pump Housing

• Typically stainless steel (AISI 304/316) or cast iron for heavy-duty use.

5. Dip Tube (Suction Pipe)

• Extends into the drum (adjustable or fixed length).

• Reinforced for thick fluids.

6. Discharge Outlet & Hose

• Often includes a ball valve or nozzle for controlled dispensing.

7. Seals & Bearings

• Mechanical seals or lip seals prevent leaks.

• Wear-resistant bearings for long life.

8. Mounting Clamp/Bung Adapter

• Fits standard 2" or 3" drum openings.

Common Applications

✔ Adhesives & sealants (silicones, epoxies).
✔ Greases & lubricants (high NLGI grades).
✔ Food products (chocolate, dough, syrups).
✔ Paints & coatings (high-pigment pastes).
✔ Resins & polymers (uncured composites).

Advantages Over Other Drum Pumps

Handles extreme viscosities better than gear or centrifugal pumps.
Low pulsation & shear – Protects sensitive materials.
Reversible flow (on some models) for cleaning or emptying hoses.

Maintenance Tips

Inspect stator regularly (wear can reduce efficiency).
Clean after use (prevents hardening of residues).
Lubricate bearings/seals (if applicable).
Check for shaft misalignment (can cause premature wear).

Popular Flux Worm Drive Models

• Flux GORATOR® SD (heavy-duty screw pump)

• Flux Varisco V2 (for food/pharma applications)

• Flux EasyPump HD (manual/electric options)