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Coriolis style Mass Flow Meter/Controller for gas or liquid

  • Model: I-xxx-M54/M55 CORI-FLOW
  • Manufactured by: Bronkhorst Cori-Tech

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Product Description:


CORI-FLOW™ series mass flow meter / mass flow controller are designed to provide high accuracy. CORI-FLOW™ utilizes a patented, advanced Coriolis type direct mass flow sensor to achieve unsurpassed performance, even with changing operation conditions in pressure, temperature, density, conductivity and viscosity. Control valves can either be close-coupled, to measure and control mass flow ranges from:

lowest range 50…500 g/h
up to highest range 6…600 kg/h

The control valve design distinguishes itself from competitive designs in its truly modular construction and it can be field replaced or changed by the user without any adjustment. The standard valve is normally closed and is available up to Kv-values of 1.5. Normally opened valves can also be supplied.


  • Direct mass flow measurement
  • Fast response time
  • High accuracy (0,2% Rd + ZS for liquids, 0,5% Rd + ZS for gases)
  • Highly stable
  • Compact Coriolis Controller
  • All wetted parts stainless steel; option: Hastelloy-C22
  • IP65 design, ATEX approval Cat.3, Zone 2 (option)
  • Analog plus digital communication
  • Integrated PID controller for control valve or pump
  • Integrated totaliser for batch control

"Multibus" Digital Mass Flow Meters/Controllers

A CORI-FLOW™ Coriolis Mass Flow Meter / Mass Flow Controller is offered with analog and digital communication, RS-232 with PROFIBUS DP, Devicenet™, Modbus-RTU or FLOW-BUS.

Coriolis Mass Flow Meters (MFM)


Series M53

min. 50...500 g/h
max. 0,2...10 kg/h
Series M54 min. 0,2...5 kg/h
max. 2...100 kg/h
Series M55 min. 0,5...20 kg/h
max. 12...600 kg/h

Coriolis Mass Flow Controllers (MFM + Valve)


Series M53 + C0I / M53 + C1I / M53 + C2I / M53 + C5I

min. 50...500 g/h
max. 0,2...10 kg/h
Series M54 + F-004AI / M54 + C5I min. 0,2...5 kg/h
max. 2...100 kg/h
Series M55 + F-004AI / M55 + C5I min. 0,5...20 kg/h
max. 12...600 kg/h

CoriCalc on the Net

This instrument sizing and calculation tool for Bronkhorst Coriolis mass flow meters and controllers is now available online, integrated in Fluidat on the Net.

CoriCalc offers distributors and end-users the following functionalities:

  • Pressure drop calculation for Coriolis flow meter M1X- and M5X-series.
  • Valve orifice calculation for Bronkhorst and other (special) valves
  • Density, viscosity and phase of fluid (if available in FLUIDAT®)
  • Improved advisory with up to 2 sensors and 3 valves as options
  • Overview of total errors and pressure drops at several flow rates for selected instruments
  • Graphical representation of total error (trumpet style curves)
  • Printout facilities for calculations, overviews and advice screens

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