Micro Annular Gear Pumps – Low Pressure Pump Series mzr-2521

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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.

Micro Annular Gear Pumps - Low pressure pump series mzr-2521

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.