Micro Annular Gear Pumps – Low-Pressure Pump Series
The pumps of the low-pressure pump series are used in analytical instrumentation for precise dosage tasks at low pressures and for low viscosities. They are particularly suited for the lowest volumes of non-lubricating liquids. Using DC mini motors, the pumps have small dimensions and low power consumption so that they can be easily integrated into OEM applications. The pumps are suitable for metering and dosing de-ionized water, watery solutions, solvents as well as low-viscosity oils and lubricants.
Dosing pump for analytical instrumentation- Low-Pressure Pump Series mzr-2521
The compact micro annular gear pump mzr-2521 of the low-pressure series is an innovative pump concept for use in analytical instrumentation. The pump generates a low pulsation, highly precise flow featuring low shear stress. It dispenses at a high precision the lowest volumes in the microliter range. Due to its compact design small dimensions have been achieved. The pump is suitable for the dosage of low viscosity liquids such as deionized water, watery solutions, methanol, solvents, oil, and lubricants.
Advantages of Low-Pressure Pump Series mzr-2521
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 Low-Pressure Pump Series mzr-2521
Analytical instrumentation
Fuel cells
Laboratory automation
In-vitro diagnostics
Technical data of Low-Pressure Pump Series mzr-2521
Flow rate: 0.15 – 9 (min. 0.0015 *) ml/min
Smallest dosage volume: 0.25 µl
Displacement volume: 1.5 µl
Differential pressure range: 0 – 1.5 bar (22 psi)
Maximum inlet pressure: 1 bar (15 psi)
Liquid temperature range: -20 … +60 °C (-4 … +140 °F)
Viscosity range: 0.3 – 100 (max. 1,000 *) mPas
Precision CV: 1 % (Coefficient of variation CV)
Velocity range: 100 – 6,000 (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
Electrical connection: 10-pole connector
Dimensions (L x W x H): Ø 13 mm, length 75 mm
Weight: approx. 50 g (manifold assembly approx. 65 g)
Remarks:* depending on accessories, Customized solutions on request
Notice: 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.
