Magnetic Drive Pump — Acids
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LibertyCES has documented Magnetic Drive Pump in Acids service, including Phosphoric Acid, Nitric Acid and Sulfuric Acid. Wetted materials to confirm: PFA, PTFE, FEP and Ductile iron housing. Documented models include Richter QMD/MNK/RM and Finish Thompson DB Series. Compatibility depends on exact concentration, temperature and duty cycle, so confirm with a free spec review.
Notes from the vendor documentation
Richter's process chemistry list plus general industrial acid transfer service across multiple vendors' mag-drive lines.
Materials documented for this service
- PFA
- PTFE
- FEP (QMD economy tier)
- Ductile iron housing
Products cited for this service
Real Specifications
| Spec | Value | Source document |
|---|---|---|
| DB Series envelope | Up to 70% operating efficiency; max working pressure 90 psi (6.2 bar); flow range <1 to 221 gpm; max head 20-201 ft | Finish Thompson — Sealless Plastic Pumps |
| DB Series max temp by material | Polypropylene 180°F (82°C), PVDF 220°F (104°C) | Finish Thompson — Sealless Plastic Pumps |
| Filter Pump MTD spec | Sealless mag-drive horizontal centrifugal, strongest neodymium magnets, handles specific gravity to 1.8 | Filter Pump — Full Product Line |
| Richter QMD positioning | FEP lining, PN16 pressure rating — Richter's economical/standard-duty tier | Richter Chemie-Technik — Industries + Centrifugal Magnetic Drive Pumps |
DB Series runs dry for hours without damage when equipped with a carbon bushing, and Filter Pump's MTD carbon bushings carry the same real tolerance — both exist for the intermittent-suction-loss failure mode that kills a standard mechanical-seal centrifugal pump within minutes on an acid transfer line.
Acid transfer lines lose suction more often than a spec sheet admits — DB Series' carbon-bushing dry-run tolerance and Filter Pump's MTD carbon bushings both exist to survive exactly that intermittent-suction failure mode, which matters more day-to-day on an acid duty than the peak pressure rating ever does.
Every material and product claim on this page traces to real, vendor-published documentation on file with LibertyCES. Chemical compatibility depends on exact concentration, temperature, and duty cycle — confirm current specifications with the manufacturer and request a spec review before final specification.
FAQ
Can Magnetic Drive Pump handle Acids?
Richter's process chemistry list plus general industrial acid transfer service across multiple vendors' mag-drive lines.
What wetted materials should Magnetic Drive Pump use in Acids service?
Materials documented for this service: PFA, PTFE, FEP (QMD economy tier), Ductile iron housing. Compatibility depends on exact concentration, temperature and duty cycle, so confirm with a spec review before final specification.
Which Acids chemicals does this cover?
Named chemicals in this documentation: Phosphoric Acid, Nitric Acid, Sulfuric Acid (mining slurry avoidance context).
Which Magnetic Drive Pump models are documented for Acids?
Documented examples include Richter QMD/MNK/RM, Finish Thompson DB Series, Filter Pump MTD.
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Reviewed by James Riggins, 30+ years specifying water and chemical process equipment · Updated