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's agent in Ireland, Thomson Process Equipment and Engineering Ltd. Actual performance may vary.
Specifications are subject to change without notice.
HNPM mzr-2521
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Max. Capacity 9 ml/min
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Max. Pressure 1.5 bar
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Max. Viscosity 100 mPas
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Temperature Range -20 to +60 °C

HNPM mzr-2521 Low Pressure Micro Annular Gear Pump from HNP Mikrosysteme supplied by Thomson Process Equipment and Engineering Ltd.
HNP Mikrosysteme compact micro annular gear pump mzr-2521 Low Pressure Pump for use in Analytical Instrumentation.
Advantages of the HNPM mzr-2521 Micro Annular Gear Pump.
- Compact dimensions - diameter 13 mm, length 75 mm
- Small dosage volumes, high flow rates - smallest volume 0.25 µl, flow up to 9 ml/min
- High dosage precision - precision CV 1 % at low volumes
- Long service life - wear-resistant tungsten carbide or ceramics
- Low pulsation delivery, low shear stress - rotary micro annular gear technology
Applications of the HNP Mikrosysteme HNPM mzr-2521 Micro Annular Gear Pump Low Pressure Series.
- Analytical instrumentation
- Fuel cells
- Laboratory automation
- In vitro diagnostics
Specifications
Flow rate |
0.15 – 9 ml/min (min. 0.0015 ml/min *) |
Viscosity range |
0.3 – 100 mPas (max. 1,000 mPas *) |
Precision CV |
1 % (Coefficient of Variation CV) |
Velocity range |
100 – 6000 rpm (min. 1 rpm *) |
Fluid connection |
slip fittings with outside diameter 2 mm optional: manifold assembly M2.1 |
Wetted parts |
stainless steel 316L, ceramics, tungsten carbide Ni based, epoxy resin, optional: alloy C22 (2.4602) instead of stainless steel, ceramics instead of tungsten carbide; shaft seal: graphite-reinforced PTFE, stainless steel 316L, optional: alloy C276 (2.4819) instead of stainless steel; static seals: FPM, optional: EPDM, FFPM |
Motor |
DC-motor with graphite brushes, assigned power rating 3 W, nominal voltage 18 V, digital magnet encoder 16 counts per turn |
Dimensions (L x W x H) |
Ø 13 mm, length 75 mm |
Weight |
approx. 50 g (manifold assembly approx. 65 g) |
Electrical connection |
10-pole connector |
Differential pressure range |
0 - 3 bar (44 psi) |
Maximum inlet pressure |
1 bar |
Operating temperature range |
-20 ... +60 °C |
Displacement volume |
1.5 µl |
Smallest dosage volume |
0.25 µl |
Remark |
* depending on accessories, |
Options
HNPM mzr-2521 Low Pressure Pump Accessories
Reduction gear

reduces pump speed,
stabilizes motor speed in low RPM-range, increases drive torque
Programmable controller S-ND

programmable controller for continuous and discrete dosing
Controller S-KG

4-Q-DC controller for continuous dosing