High-power sealless drum pumps are engineered for transferring aggressive, toxic, or volatile chemicals without leakage risks. Unlike traditional pumps with mechanical seals, they use sealless technology (magnetic drive or canned motor) to eliminate leak paths, making them ideal for hazardous, high-temperature, or corrosive fluids.
Outer Magnet Rotor: Powered by an electric motor.
Inner Impeller Magnet: Coupled magnetically (no physical shaft connection).
Containment Shell: A hermetic barrier (usually metal or ceramic) isolates the fluid.
Zero Leakage: No seals = no failure points for dangerous leaks.
Stator & Rotor Encased in a Metal Can: Immersed in the pumped fluid for cooling/lubrication.
Sealless by Design: No dynamic seals; motor and pump are one sealed unit.
✅ Leak-Free Operation – Critical for acids, solvents, LOHCs (liquid organic hydrogen carriers), and volatile organics.
✅ High Power Handling – Capable of high flow rates (up to 200+ GPM) and pressures (up to 300+ psi).
✅ Corrosion Resistance – Wetted parts in Hastelloy®, titanium, or PTFE-lined designs.
✅ Thermal Stability – Handles fluids up to 400°F+ (204°C+).
✅ Low Maintenance – No seal replacements or alignment issues.
Chemical Processing: Transferring sulfuric acid, caustics, chlorinated solvents.
Pharma/Biotech: Sterile or high-purity fluid handling.
Energy: LOHCs (hydrogen carriers), heat transfer fluids.
Semiconductor: Ultra-pure chemical dosing.
| Feature | Sealless Drum Pump | Traditional Sealed Pump |
|---|---|---|
| Leak Risk | Zero (no mechanical seals) | Potential seal failure |
| Maintenance | Minimal (no seal replacements) | Frequent seal/alignment checks |
| Hazardous Fluids | Safe for toxics/volatiles | Limited by seal compatibility |
| Efficiency | Slightly lower (eddy current losses) | Higher (direct drive) |
| Cost | Higher upfront cost | Lower initial investment |
Flux: Sealless mag-drive drum pumps (e.g., Flux MDS Series).
Iwaki: MDM Series magnetic drive pumps.
March Pump: TE-10K-MD for aggressive chemicals.
PSG Dover: Wilden® Pro-Flo SHIFT (air-operated sealless).
Monitor Bearing Wear (in mag-drive pumps).
Avoid Dry Running (can overheat containment shell).
Inspect Magnet Strength (demagnetization reduces efficiency).