Hermetic inert pump series

For mini plant and microreaction technology

The mzr-7255 micro annular gear pump of the hermetic and chemically inert series is, considering its almost universal suitability for aggressive and corrosive media, a revolution in the pump technology. Its rotors and functional elements being made of ceramics, the pump shows the highest chemical resistance and an outstanding resistance to wear. Thanks to the use of SSiC (pressureless sintered silicon carbide) as bearing and shaft material, a magnetic coupling, and case components made out of alloy C22 (DIN 2.4602), this pump will take up any challenge in the chemical industry applications.

Advantages

High resistance to corrosion
oxidizing and reducing media, acids and bases
Long service life
wear-resistant ceramic components
Hermetically sealed
magnetic coupling (NdFeB)
Compact, chemically inert pump head
146 mm long, alloy C22, SSiC, Al2O3 and ZrO2-ceramics
Precision motor and user-friendly control
dynamic DC-servomotor with encoder and microcontroller,
RS-232 or CAN-Bus, analog, I/O
Precise dosage, low pulsation
rotary micro annular gear technology, no valves

Applications

Mini plant technology
Microreaction technology

Flow charts

Download images

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Technical data

Flow rate
0.048 - 288 ml/min
Smallest dosage volume
30 µl
Displacement volume
48 µl
Maximum system pressure
80 bar (1160 psi) (inlet pressure + differential pressure)
Differential pressure range
0 – 40 bar
Liquid temperature range
-5 ... +60 °C (-20 ... +200 °C *)
Viscosity range
0.3 - 1000 mPas
Precision CV
< 1% (Coefficient of variation CV)
Velocity range
1 - 6000 rpm
Fluid connection
1/8" NPT internal thread, lateral optional: 1/8" NPT internal thread, frontal
Wetted parts
Pump case alloy C22 (2.4602), optional: stainless steel 316L;
seals FFKM (Kalrez® Spectrum™ 6375), optional: FPM, EPDM;
shaft/bearing sintered silicon carbide (SSiC);
bearing and wetted functional parts Al2O3 ceramics;
rotors TAZ composite ceramics, optional: tungsten carbide Ni-based
Coupling
8-pole NdFeB magnetic coupling
Motor
DC-servomotor, 24 V DC, 44 W, with microcontroller
Interface
0–10 V, 0 (4) –20 mA, RS-232, 1 digital input/output, optional: CAN-Bus
Dimensions (L x W x H)
146 x 70 x 72 mm
Weight
approx. 1650 g
Remarks
* with optional heat insulation module, 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.
This document is subject to change without notice.