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.
One of our eye-catchers in the liquid flow product line portfolio is the Coriolis flow meter. Our Coriolis flow meter series was introduced in 2007 and since then a huge success for both gas and liquid flow measurements in the industry as well as lab applications.
At their introduction the Coriolis instruments got the name ‘mini CORI-FLOW’. This name was chosen for two reasons: it was a small flow meter and it measured and controlled low flows, using the Coriolis principle. Saying something is ‘’small” or handles “low flow” is about as subjective as the answer to “How long is a piece of string?”.
So let’s take a more objective look at why the mini CORI-FLOW is truly mini:
The mini CORI-FLOW flow meter models M12, M13, and M14 are only 144 mm (5.67 in) tall, 32mm (1.26 in) deep, and (for a controller with integral valve included) only 146mm (5.75 in) end to end. To put that in better perspective, the Samsung Galaxy S21 smartphone is 151.7mm (5.97 in) tall.
A fully functioning 'mini CORI-FLOW' flow controller, a complete control loop consisting of measuring sensor, PID control, and control valve will all fit in your hand about as well as the latest smartphone! There is not another Coriolis-based complete control loop in the world that is as compact as the mini CORI-FLOW mass flow meter. Granted you will likely not be holding it in your hand, so why does that matter?
There are some heavy hitters in the Coriolis world, and you may have your favorite that you use as standard, but if you want the accuracy, speed, and stability of Coriolis measurement and control at low flows then Bronkhorst should be on your list for consideration. You may find that, depending on your flow requirement, Bronkhorst may be the only name you can put on your list.
Back to our objective view; the mini CORI-FLOW mass flow meter (model ML120) can measure flows as low as 0.05 g/h (grams per hour). To give you a better feel for just how low a flow this is, consider that if your favorite coffee house were to flow coffee at 50 g/h (which is 1.76 ounces per hour) it would take 6.82 hours to fill your small (12 oz./350ml) coffee.
Those of you who require a harder push in the morning should place your order the night before as the big one (20 oz./590ml.) would take 11.4 hours to fill! Better hope they don’t use the lowest flow of 50 mg/h (milligrams per hour) or that small coffee would take 6,818 hours (284 days) to fill.
We have yet to provide a mini CORI-FLOW mass flow meter specifically for filling a morning cup of coffee but there are mini CORI-FLOW instruments measuring and controlling various fluids in applications where it had initially been thought that Coriolis technology could never be applied because the required flow was too low for the technology.
Due to the tremendous growth of chocolate variations, using flavours and aromas, mass flow meters find their way into the confectionery industry.
Did you know that natural gas is odorless by nature? Flow controllers combined with a pump are used to dose THT into natural gas, giving it a penetrating scent to act as a warning agent.
The Coriolis measuring principle is somewhat sensitive to unwanted vibrations with a frequency close to the resonance frequency of the sensor tube or a higher harmonic of this frequency. What can you do?