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mini CORI-FLOW™ Liquid Dosing Systems, 
using flow meter controlled pumps

An alternative way of control

In some applications it is not possible or not recommended to use a control valve, for instance when a vessel with liquid cannot be pressurised. As an alternative, Bronkhorst can offer virtually pulse-free gear pumps, close-coupled to the Coriolis flowmeter.

Liquid dosing system

mini CORI-FLOW liquid dosing system consists of a Coriolis flow meter, a gear pump, a filter, a check valve and interconnecting material. Furthermore Bronkhorst will take care of electrical and mechanical connection, testing and optimisation including the PID-integrated controller.

Mass Flow Meter, close-coupled to a pump
Download dimensional drawing for this combination.

A complete series of pumps is available for very small through to higher flow rates, for higher pressures, wide control ranges and for aggressive fluids. Further to operation in analog mode, the Liquid Dosing System can also be used digitally with RS232 or with an on-board fieldbus interface.

Applications

  • Mixing in a Micronit microreactor using a Bronkhorst pump by Flowid  

Click here to view YouTube video

  • Features
  • Documentation

Features

  • simple and compact assembly; easy to use
  • no need to pressurise liquid source
  • pump controlled by mass flow instrument with adjustable PID-controller via voltage output signal
  • complete dosing system with small dimensions
  • direct mass flow measurement/control (not volumetric)
  • high accuracy and stability (nearly pulse free)
  • desired flow to be set via: analog 0…5(10) V / 0(4)...20 mA or digital communication by RS232, Profibus-DP®, DeviceNet™, Modbus or FLOW-BUS

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