Ultrasonic Flow Meter
As you may know, flowmeters are commonly separated into two different categories, one for flow meters which measure the rate of flow by volume and the other which measures the rate of flow by the mass of the fluid.
Doppler flow meters, or ultrasonic flow meters, differ from the norm as they utilize sound to determine the rate of flow within a system. These flow meters are a great fit for applications in the wastewater industry or similar applications that have dirty liquids that are water based or conductive. Read More…
Leading Manufacturers
Sierra Instruments
Monterey, CA | 831-373-0200Sierra manufacturers high performance mass flow meters and controllers for nearly any gas, liquid or steam. Customers choose Sierra when they need an accurate and repeatable flow measurement, short delivery lead times, expert flow advice and long term support. When it matters, choose Sierra. Visit www.sierrainstruments.com.

SIKA USA
Sturtevant, WI | 262-886-2695SIKA is a developer and manufacturer of flow control products and a wide variety of other measuring and monitoring systems. Our inventory includes flow sensors, flow meters, flow switches, and many more. We know that flow solutions aren't one-size-fits-all, which is why we provide consultation and flow management solutions that are individualized and customized to your requirements. When you choose SIKA, you will receive efficient, durable products and customer service tailored to your needs.

Primary Flow Signal, Inc.
Cranston, RI | 877-737-3569Primary Flow Signal offers a wide range of flow meters and measurement devices. Among this product offering are flow meters for pressurized line fluids (liquid, gas, steam); rectangular conduit meters; bidirectional flow meters; open channel flow meters and more.

Burkert Fluid Control Systems
Irvine, CA | 800-325-1405The flow meters that we are able to provide will withstand the tests of time in order to provide a long lasting value! We have locations in thirty five countries worldwide and we are dedicated to being wherever you need us to be! We have the knowledge and the capability to work with you closely in order to come up with the perfect product to suit your needs! Visit our website today to learn more about what we may do for you!

Flow Network
Acworth, GA | 770-917-0940Flow Network specializes in measurement and control of Flow, Pressure, Temperature, and Level. Local Stock and Technical Support along with competitive prices.

Ultrasonic flow meters rely on the Doppler effect, which is a term that represents the shift in frequencies that happens when the ultrasonic signal is reflected in the form of bubbles in motion or suspended particles. The transducer in the flow meter transmits ultrasonic sound through the pipe that contains the flowing fluid, the bubbles or particles will reflect these sound waves with different frequencies depending on the rate of flow of the fluid.
This data is picked up by a second transducer which will report the difference, this system allows for accurate measurements of the flow rate. These flow meters are ideal for applications where low maintenance, chemical compatibility and low pressure drop are necessary. It is important to note that ultrasonic flow meters will not work with drinkable or distilled water as the liquid is too clean to measure the change in frequencies.
Ultrasonic flow meters are commonly made from steel or similar metals as they withstand the corrosive environments that ultrasonic flow meters are often placed in. Before purchasing an ultrasonic flow meter it is important to consider the size of the pipe, minimum and maximum rate of flow and the minimum/maximum of both the temperature and pressure needed.
As with all things in the manufacturing world it is essential to consult an expert in the field before making a large purchase. We suggest contacting trusted flow meter manufactures to see if they can provide a high quality solution based on your unique specifications and requirements.