Magnetic-drive gear pumps
MARCH magnetic-drive gear pumps of the MARCH MASTER GEAR series are externally toothed gear pumps in close-coupled design with magnetic coupling and work entirely without a mechanical shaft seal. Power is transmitted without contact to the hydraulic part by strong NdFeB permanent magnets. MARCH magnetic-drive gear pumps meet the highest demands for quality, economy and reliability when pumping a wide variety of media.
Design features
- Rotary positive displacement pump
- External gear pump
- Spur and helical gearing
- Leak-free
- Magnetic-drive, sealless
- Maintenance-free
- Wet self-priming
- Close-coupled design
- For clean fluids without solids
- Self-lubricating PEEK gears and plain bearings, also for low-viscosity media
- 24 V BLDC motor
- Integrated control electronics
- 10 V control voltage
- Speed range 1000 … 4000 rpm
Technical data
| Flow rate: | max. 300 l/h |
| Differential pressure: | max. 8 bar |
| System pressure: | PN20 bar |
| Operating temperature: | -35 … +120 °C |
| NPSHR | min. 2,0 + 0,5 m |
| Geometric theoretical displacement volume | 1,76 cm3/U |
| Motor voltage | 24 V BLDC |
| Control voltage | 10 V |
| Rated power | 135 W |
| Speed range | 1000 … 4000 1/min |
| Rated current | 8,1 W |
| Degree of protection | IP 54 |
| Insulation class | B – 130 °C |
Materials
| Casing: | Stainless steel 1.4404, EN-GJS-400-15 |
| O-rings: | EPDM, FKM, NBR, FFKM, PTFE |
| Shafts: | Oxide ceramic, 1.4404, 1.7131 |
| Gears: | PEEK, 1.7131 |
| Plain bearings: | PEEK, bronze |
Applications
MARCH magnetic-drive gear pumps of the MARCH GEAR MAG series are used in particular for the safe pumping of oils, fuels or refrigerants, but are also used in water or food applications.
Typical applications are:
- Circulation pump for charging cable cooling units
- Refrigerant pump
- Fuel pump for engine test benches
- Pressure boosting pump for barrier systems
- Metering pump in SNCR / SCR applications
- Delivery pump for viscous media