Stainless steel (typically 304 or 316 grade) drum pumps offer:
✔ Superior corrosion resistance
✔ Durability for harsh chemicals
✔ Easy cleaning and sterilization
✔ FDA compliance for food/pharma applications
| Type | Best For | Max Viscosity | Key Features |
|---|---|---|---|
| Manual | Small transfers, no power needed | 5,000 cP | Hand-operated, portable |
| Electric | Frequent/high-volume transfers | 50,000 cP | 12V/24V/110V/230V options |
| Pneumatic | Explosive environments | 100,000 cP | No sparks, air-powered |
| Battery | Remote/mobile use | 10,000 cP | Cordless operation |
304 SS: General chemical resistance (acids, alcohols)
316/316L SS: Superior for chlorides, saltwater, harsh chems
316L "Low Carbon": Better for welding, prevents corrosion
Centrifugal: Thin liquids (<1,000 cP)
Gear: Oils, medium-viscosity (up to 100,000 cP)
Diaphragm: Slurries, abrasive fluids
Progressive Cavity: Ultra-high viscosity (1M+ cP)
✔ ATEX/IECEx certification (for flammable liquids)
✔ Sanitary tri-clamp fittings (food/pharma)
✔ Self-priming capability
✔ Grounding wire for static protection
Chemical Processing: Acids, solvents, caustics
Food & Beverage: Syrups, dairy, edible oils
Pharmaceutical: APIs, sanitizers
Marine/Offshore: Saltwater, bilge fluids
Rinse thoroughly after each use
Inspect seals (Viton®/PTFE recommended)
Store dry to prevent pitting corrosion
Passivate periodically to restore oxide layer
| Brand | Model | Type | Best For |
|---|---|---|---|
| Lutz | 8000 Series | Manual | General chemicals |
| FLUX | FLEXI-FLO SS | Electric | ATEX environments |
| Yamada | NDP-20SS | Pneumatic | Paint/solvents |
| Finish Thompson | SaniForce | Sanitary | Food/pharma |
| Seepex | BTM Series | Progressive Cavity | Ultra-thick fluids |
✓ Specify 316L over 304 for harsh chemicals
✓ Choose explosion-proof motors when needed
✓ Verify connection types (NPT, tri-clamp, flange)
✓ Check CIP/SIP capability for sanitary apps
Did You Know? 316SS contains molybdenum for extra chloride resistance - crucial for coastal/marine use!