Polythene (polyethylene) drum pumps are lightweight, corrosion-resistant, and cost-effective solutions for transferring mild chemicals, water-based solutions, and non-aggressive liquids from drums or IBCs. Here’s what you need to know:
✔ Material:
Polyethylene (HDPE/LDPE) – Resistant to acids, alkalis, and water-based solutions.
NOT suitable for strong solvents (e.g., acetone, toluene), oils, or high-temperature liquids.
✔ Chemical Resistance:
Good for: Dilute acids (e.g., 10% sulfuric), bleach, detergents, water.
Avoid: Hydrocarbons, chlorinated solvents, concentrated acids.
✔ Design:
Lightweight (~2-3 kg)
Manual or electric options
Typically 1" or 2" bung fitting for standard drums
✔ Max Viscosity: Up to 1,000 cP (for thin to medium fluids).
| Type | Best For | Flow Rate | Power Source | Price Range |
|---|---|---|---|---|
| Manual | Small-scale, occasional use | 5-10 LPM | Hand-operated | $50–$150 |
| Electric | Faster, frequent transfers | 10-30 LPM | 12V/24V DC or 230V AC | $200–$500 |
| Pneumatic | Hazardous areas (no sparks) | 15-25 LPM | Compressed air | $300–$700 |
Water treatment chemicals (bleach, alum solutions)
Cleaning agents (detergents, sanitizers)
Agricultural chemicals (fertilizers, mild pesticides)
Food-grade liquids (if FDA-approved PE)
❌ Not for organic solvents (will swell/crack)
❌ Low temperature resistance (max ~60°C / 140°F)
❌ Not for high-pressure pumping
| Model | Brand | Type | Max Flow | Best For |
|---|---|---|---|---|
| Lutz 1100 | Lutz | Manual | 8 LPM | Bleach, detergents |
| FLUX FLEXI-PE | FLUX | Electric | 20 LPM | Water treatment chems |
| Yamada NDP-PE | Yamada | Pneumatic | 15 LPM | Safe for Zone 2 areas |
Rinse after use – Prevents chemical residue buildup.
Avoid UV exposure – Polythene degrades in sunlight.
Check for cracks – Replace if brittle or damaged.
Store indoors – Prolongs lifespan.
If your liquid is too aggressive for polythene, consider:
Polypropylene (PP) pumps – Better for some acids/solvents.
Stainless steel (SS316) – For corrosive or high-purity liquids.
PTFE-lined pumps – For harsh solvents.
Need Help Choosing?
Tell me:
Specific chemical (e.g., 5% sulfuric acid, detergent)
Container size (200L drum, IBC, etc.)
Frequency of use
Preferred power type (manual/electric/pneumatic)