HNPM mzr-7242

  • Max. Capacity 288 ml/min

  • Max. Pressure 5 bar

  • Max. Viscosity 100 mPas

  • Temperature Range -20 to +60 °C 

HNPM mzr-7242

HNP Mikrosysteme Modular Pump Series HNPM mzr-7242 Micro Annular Gear Pump

The HNP Mikrosysteme micro annular gear pump mzr-7242 Small Dimensions, Low Pulsation, High Precision Low Volume Dosage of Non Lubricating liquids.  modular pump series are suitable for dosing and metering in low to medium pressure and viscosity ranges. 

The HNP Mikrosysteme micro annular gear pump mzr-7242 pumps are suitable for dosing and dispensing deionized water, aqueous solutions, solvents as well as low to highly viscous oils, lubricants or dyes. These Micro Pumps are suitable for dosing very small volumes of liquid in discrete dosing. The compact design means that a very sophisticated mechanism fits in an extremely small space.

The HNP Mikrosysteme mzr-7242 Modular Series Pump has low shear stress and low pulsation - all operated with no valves. The materials are fully customisable with pump components available in stainless steel/tungsten carbide, aluminum/tungsten carbide or alloy C22/Ceramics. 


Advantages of the HNP Mikrosysteme mzr-7242 Micro Annular Gear Pump


  • Compact dimensions - length 132 mm
  • High dosage precision -precision CV 1 % at low volumes
  • Small dosage volumes, high flow rates - smallest volume 30 µl, flow up to 288 ml/min
  • Long service life -wear-resistant tungsten carbide
  • Low pulsation delivery, low shear stress -rotary micro annular gear technology


Applications of the HNP Mikrosysteme mzr-7242 Micro Annular Gear Pump


  • Analytical instrumentation
  • Fuel cells
  • Biotechnology
  • Laboratory automation
  • In vitro diagnostics


Flow rate 4.8 – 288 ml/min
Viscosity range 0.3 – 100 mPas
Precision CV 1 % (Coefficient of Variation CV)
Velocity range 100 – 6000 rpm
Fluid connection 1/8" NPT internal thread, lateral
Wetted parts Pump case: stainless steel 316L, rotors: tungsten carbide Ni-based; bearing: ceramics; epoxy resin; shaft seal: graphite-reinforced PTFE, stainless steel 316L; static seals: FPM, optional: EPDM, FFPM
Motor DC-motor with graphite brushes, assigned power rating 21 W, nominal voltage 12 V, digital optical encoder 256 counts per turn, Line Driver
Dimensions (L x W x H) approx. 132 x 42 x 60 mm
Weight approx. 800 g
Differential pressure range 0 – 5 bar (73 psi)
Maximum inlet pressure 1 bar
Operating temperature range -20 ... +60 °C
Displacement volume 48 µl
Smallest dosage volume 30 µl
Remark * Customized solutions on request

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 Thomson Process Equipment and Engineering, Irish Agent for HNP Mikrosysteme. Actual performance may vary.
Specifications are subject to change without notice.


Optional Equipment for the HNPM mzr-7242 Modular Series Micro Annular Gear Pump

  • Static seals EPDM or FFPM
  • Liquid supply accessories tubes, filters etc.
  • Console drive module diecast aluminum chassis mzr-S06 E for laboratory and testing
  • Multiplexer module simultaneous operation of up to 255 pumps with a single RS-232 interface