We offer the widest product range of low-flow (mass) flow meters and controllers on the market. Numerous styles of both standard and bespoke instruments can be offered for applications in laboratory, machinery, industry and hazardous areas.
Customer satisfaction, innovation and quality of product and service have been the cornerstones of Bronkhorst's success. Based on our experience, innovation and sense of responsibility, a relationship with Bronkhorst assures Performance for Life.
Learn more about how Coriolis-based flow meters can be used as microfluidic flow meter instead of thermal flow meters. Read the customer story of a microfluidics system builder who used Bronkhorst products.
Are you looking for technical documentation, are you interested to learn more about the measuring principles of Bronkhorst products, or you do want to get in contact with a Bronkhorst Service Engineer? This section will guide you to the relevant service & support topics.
Bronkhorst High-Tech BV the leaders in Mass Flow Meter / Mass Flow Controller technology for gases and liquids, Pressure Controllers and Evaporation Systems.
Bronkhorst specializes in gas mass flow controllers for applications in laboratory, industrial processes, and hazardous locations.
What is a Mass Flow Controller?
A gas mass flow controller is an instrument used to measure and control the flow of gases. These controllers are built, tested, and calibrated for specific operating conditions (flow range, type of gas, upstream pressure, downstream pressure, and temperature).
A mass flow controller controls a certain flow by comparing a setpoint value between 0 and 100% of its full-scale range with the measured value. After that, the control valve adjusts the flow (very fast) by opening or closing the valve further until the setpoint is exactly reached. Various principles are used for measuring the flow, such as: thermal by-pass, thermal thru-flow or Coriolis.
Coriolis mass flow controllers measure real mass flow, whereas thermal mass flow controller is dependent of the physical properties of the fluid. True mass flow measurement is an important development across industry as it eliminates inaccuracies caused by the physical properties of the fluid, not least being the difference between mass and volumetric flow. Mass is not affected by changing temperature and pressure. This alone makes it an important method of fluid flow measurement.
Thermal mass flow controllers make use of the heat capacity and thermal conductivity of gases to determine mass flow. Unlike volumetric flow measurement devices such as variable area - VA- meters or turbine meters, thermal mass flow controllers are relatively immune to fluctuations in temperature and pressure of the incoming flow.
Do you need help selecting the right flow controller, contact us.
This video explains the principle of operation of the 'inline' Gas Flow Controller.
This video explains the measuring principle a Coriolis Mass Flow Controller.