Mass Flow Controllers (MFC) And Proportional Valves

Bürkert’s Mass Flow Meters (MFM) and Mass Flow Controllers (MFC) rank among the most sought after components in the business. With a well established position in various processes all over the world, they set the standard in the measurement and control of mass flow rates.

Reproducible accuracy and precision, with a coherent price-performance ratio – these are the exceptional characteristics of Bürkert’s thermal MFMs/MFCs. Our mechatronic devices unite the functionality of several components at once, in an efficient compact structure with no moving components in the gas flow. Compactness and device intelligence make gas handling so much easier. Form your own image of the efficiency of Bürkert’s MFMs/MMCs. This brochure will get you started with its technical descriptions and a detailed product overview. 

Mass Flow Controllers are compact devices that control the mass flow of gases. They control a preset flow rate reference value – regardless of disturbance variables such as pressure fluctuations or temporary occurring flow resistances, e. g. as a result of filter dirt.

MFCs consist of the following components: flow sensor, electronics (with signal processing, regulation and valve control functions) and a solenoid control valve as an actuator. The reference value setting is made electrically via analogue signal or fieldbus. The actual value measured by the sensor is compared in the controller with the reference value. The controller gives a pulse-width modulated voltage signal to the actuator as a correcting variable and varies it according to the registered control deviation. The actual value is also transmitted externally via an analogue signal or fieldbus. It is therefore provided to the user for controlling and analysing. With its easy installation, the compact structure of the Mass Flow Controller ensures the convenient operation of a complete (closed) control loop. Additional work and costs, e. g. wiring and harmonising individual components, incorporating pipe lengths (inlet/outlet pipe for flow conditioning), are ruled out.

Whatever the application, it is all down to precise regulation, constant control and accurate metering of the gas media, ensuring a consistent and reproducible result, whilst maintaining process security and limiting costs. And nobody knows this better than Bürkert – because we have been successfully measuring, controlling and regulating fluids for more than 60 years.