Polypropylene drum pumps are chemical-resistant, lightweight, and economical solutions for transferring acids, alkalis, and corrosive liquids from drums, barrels, or IBCs. Here’s everything you need to know:
✔ Material:
Polypropylene (PP) – Excellent resistance to acids, alkalis, and solvents (better than polyethylene).
Not suitable for chlorinated solvents (e.g., dichloromethane), strong oxidizers, or high-temperature (>80°C/176°F) fluids.
✔ Chemical Resistance:
Good for: Sulfuric acid (≤50%), hydrochloric acid (≤30%), caustic soda, bleach, detergents.
Avoid: Benzene, acetone, concentrated nitric acid.
✔ Design:
Lightweight (~2–4 kg)
Manual, electric, or pneumatic options
Standard 2" bung fitting for 55-gallon drums
✔ Max Viscosity: Up to 5,000 cP (for moderately thick fluids).
| Type | Best For | Flow Rate | Power Source | Price Range |
|---|---|---|---|---|
| Manual | Small batches, no power | 5–15 LPM | Hand crank | $80–$200 |
| Electric | Frequent/high-volume use | 10–40 LPM | 12V/24V DC or 230V AC | $250–$700 |
| Pneumatic | Hazardous/explosive areas | 15–30 LPM | Compressed air | $400–$900 |
Industrial chemicals: Acids (HCl, H₂SO₄), alkalis (NaOH, KOH).
Water treatment: Bleach, alum, flocculants.
Cleaning solutions: Detergents, sanitizers.
Pharmaceuticals: Mild API transfers (if FDA-approved).
❌ Not for strong organic solvents (e.g., acetone, toluene – use PTFE-lined pumps).
❌ Avoid high temps (>80°C can warp PP).
❌ Brittle in cold temperatures (below -10°C).
| Model | Brand | Type | Max Flow | Best For |
|---|---|---|---|---|
| Lutz 8000-PP | Lutz | Manual | 12 LPM | Acids, alkalis |
| FLUX FLEXI-PP | FLUX | Electric | 30 LPM | Corrosive chemicals |
| Yamada NDP-PP | Yamada | Pneumatic | 20 LPM | ATEX Zone 2 areas |
Flush after use – Prevents crystallization (e.g., caustic soda).
Inspect for cracks – Replace if brittle or discolored.
Store away from UV light – PP degrades in sunlight.
Use compatible seals – EPDM for acids, Viton® for some solvents.
PP vs. PE (Polyethylene): PP handles stronger acids/solvents.
PP vs. PVDF: PVDF is better for harsh solvents (e.g., acetone) but costs 3× more.
PP vs. Stainless Steel: SS316 is stronger but pricier and heavier.
Drum adapter kit – Ensures secure bung fitting.
Chemical-resistant hose (e.g., PVC or PTFE-lined).
Grounding wire – Essential for flammable liquids.
Need a Custom Recommendation?
Tell me:
Specific chemical (e.g., 20% HCl, bleach).
Container size (55-gallon drum, IBC, etc.).
Frequency of use (occasional/daily).
Power preference (manual/electric/pneumatic).