Ex-pump for application in chemical and process technology

The mzr-11557 Ex 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. Driven by a explosion-proof three-phase AC motor the pump covers the flow range from 58 ml/min to 1152 ml/min. 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 ceramics 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

  • Ex-certification ATEX
    conform with EU directive 94/9/EEC
  • High dosage precision
    precision CV < 1 % at low volumes
  • Long service life
    wear-resistant tungsten carbide
  • Broad viscosity range
    water, solvents, adhesives, grease, gel
  • Compact dimensions
    length 358 mm
  • High differential pressures
    achievable also for low viscosity liquids
  • Low pulsation delivery, low shear stress
    rotary micro annular gear technology

Applications

  • Chemical processing
  • Industrial and plant engineering
  • Packaging
  • Medical and pharmaceutical industry
  • Mini plant technology
  • Spray technology
  • Dispensing of adhesives
  • Ink and paint dosage
  • Vacuum applications

Flow charts

Technical data

  • Flow rate
    58 - 1152 (29 - 576*) ml/min
  • Displacement volume
    192µl
  • Maximum system pressure
    60 bar (870 psi) 200 bar * (2900 psi *) (inlet pressure + differential pressure)
  • Differential pressure range
    0 – 40 bar (580 psi)
  • Ambient temperature range
    -20 ... +40 °C (-4 ... +104 °F), -55 ... +60 °C * (-67 ... +140 °F) *°C
  • Liquid temperature range
    -5 ... +60 °C (+23 ... +140 °F)
  • Viscosity range
    0.3 - 1,000 mPas
  • Ex-certification
    CE Ex II 2G c IIB T3
  • Place of installation
    Ex-area zone 1, 2
  • Precision CV
    < 1% (Coefficient of variation CV)
  • Velocity range
    300 - 6000 (150 - 3000*) rpm
  • Fluid connection
    3/8" NPT internal thread, lateral
  • Wetted parts
    Pump case alloy C22 (2.4602), optional: stainless steel 316L; seals FFPM (Kalrez® Spectrum™ 6375), optional: FPM, EPDM; shaft sintered silicon carbide (SSiC); bearing and wetted functional parts Al2O3 ceramics; rotors partially stabilized ZrO2, optional: tungsten carbide Ni-based
  • Motor
    three-phase AC motor, IEC-Size 063, 2 poles, IP 55, rated voltage 240/400 V, frequency 50 Hz, 250 W
  • Temperature protection
    PTC-resistor, 6 pieces
  • Dimensions (L x W x H)
    344 x 120 x 227 mm
  • Weight
    approx. 25,000 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. 

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