Even if single parameters are within the indicated performance range of technical data, certain parameter combinations may not be achievable. Single parameters may exceed their indicated performance range under adequate circumstances. For detailed evaluation please contact HNP Mikrosysteme. Actual performance may vary.
Specifications are subject to change without notice.
HNPM mzr-2909 Ex
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Max. Capacity 14 ml/min
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Max. Pressure 5 bar
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Max. Viscosity 5000 mPas
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Temperature Range -5 to +40 °C

HNPM mzr-2909 Ex Micro Annular Gear Pump from HNP Mikrosysteme for Chemical and Process Technology is Atex ready pump for micro dosing fluids in a broad range of viscosities for use in both continuous and discrete dosing of liquids.
HNP Mikrosyteme High Dosing Precision, Long Life and Wear Resistant Micro Annular Gear Pump mzr-2909 Ex for low volume dosage of non-lubricating liquids of large range of viscosties, pumping water, solvents, grease, gel, adhesives and more.
HNP Mikrosysteme micro annular gear pump mzr-2909 Ex covers the flow range 0.003 - 14 ml/min.
Advantages of the HNP Mikrosysteme mzr-2909 Ex Atex Ready pump.
- Ex-certification ATEX - conform with EU Directive 2014/34/EU
- High dosage precision - precision CV < 1 % at low volumes
- Compact dimensions length < 295 mm, including Ex-motor
- Broad viscosity range - methanol, solvents, adhesives, grease, gel
- Long service life - wear-resistant tungsten carbide
- Low pulsation delivery, low shear stress - rotary micro annular gear technology
Specifications
Ambient temperature range |
0 ... +40 °C |
Flow rate |
0.0015 – 7 ml/min |
Viscosity range |
0.3 – 5,000 mPas |
Precision CV |
< 1 % |
Velocity range |
1 – 4700 rpm |
Wetted parts |
stainless steel 316L (1.4404, 1.4435), tungsten carbide Ni-based; shaft seal: graphite-reinforced PTFE, 316L static seals: FPM, optional: EPDM, FFPM |
Motor |
DC-motor, 24 V DC, 2 A, 53 W, encoder: 500 counts per turn, type HEDL 5540 |
Cable length |
10 m |
Weight |
approx. 2,500 g |
Ex-certification |
CE II 2G c T5 X |
Place of installation |
Ex area zone 1, 2 |
Differential pressure range |
0 – 5 bar (73 psi) |
Maximum inlet pressure |
5 bar (73 psi), (10 bar (145) *) |
Operating temperature range |
-5 ... +40 °C |
Displacement volume |
1.5 µl |
Smallest dosage volume |
0.25 µl |
Remark |
* with optional fluidic seal module, |
Options
Accessories for the ATEX Micro Annular Gear Pump from HNP Mikrosysteme mzr-2909 Ex

programmable controller for continuous and discrete dosing
Heat insulation module

also available in ATEX
Fluidic seal module

Double shell heating module

thermal insulation of pump head and drive,
prevents temperature drop of liquid