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Dosing pump for analytical instrumentation The compact micro annular gear pump mzr-4622 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 microliter range. Due to its compact design small dimensions have been achieved. The pump is suitable for dosage of low viscosity liquids such as deionized water, watery solutions, methanol, solvents, oil and lubricants. Advantages Compact dimensions diameter 18 mm, length 88 mm Small dosage volumes, high flow rates smallest volume 2 µl – flow up to 72 ml/min High dosage precision precision CV 1 % at low volumes Long service life wear-resistant tungsten carbide Low pulsation delivery, low shear stress rotary micro annular gear technology Applications Analytical instrumentation Fuel cells Laboratory automation In vitro diagnostics Flow rate:1.2 - 72 (min. 0.012*)ml/min Smallest dosage volume:2µl Displacement volume:12µl Differential pressure range:0 - 5 bar (73 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:manifold assembly Wetted parts:alloy C22 (2.4602) instead of stainless steel, ceramics instead of tungsten carbide; shaft seal: gra Motor:DC-motor with graphite brushes, assigned power rating 4.5 W, nominal voltage 24 V, digital magnet en Electrical connection:10-pole connector Dimensions (L x W x H):Ø 18 mm, length 88 mm Weight:approx. 100g Remarks:* depending on accessories, Customized solutions on request