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Open Channel Flow Meter

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Open channel: a flow of fluid where there is one free surface present, and the only pressure on it comes from gravity. Read More…

Open Channel Flow Meter Open channel flow meters deal with free flowing, or free gravity flowing, open channels. The flowing liquid of these channels have a top surface open to the air. The cross-section of their flow is based only on the shape of the shape of the lower side of the channel through which they flow.
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Leading Manufacturers

Monterey, CA  |  831-373-0200

Sierra 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.

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Sierra Instruments $$$

Sturtevant, WI  |  262-886-2695

SIKA 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.

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SIKA USA $$$

Peabody, MA  |  978-535-6060

Founded in 1921, KROHNE has become a worldwide manufacturer and supplier of flow measurement devices. Our product lines specialize in flowmeters such as ultrasonic flowmeters, vortex flowmeters, mass flowmeters and more. We also offer complete batching systems as well as loading software, thermometers, pressure sensors, level management devices and virtually any other process instrument you need.

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KROHNE, Inc. $$$

Irvine, CA  |  800-325-1405

The 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!

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Burkert Fluid Control Systems $$$

Tempe, AZ  |  480-240-3400

Flow Technology specializes in liquid flow meters, gas flow meters, water flow meters, mass flowmeters, ultrasonic flowmeters and air flow meters. Flow Technology is recognized worldwide for providing high-accuracy flow metering solutions with unmatched flow measurement resources.

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Flow Technology, Inc. $$$
placeholder image Sierra Instruments SIKA USA KROHNE, Inc. Burkert Fluid Control Systems Flow Technology, Inc.

There are many different types of open channel flow, depending on the environment in which they are found. For example, some have no changes in the depth of liquid where others have a constant, unsteady flow.

Open channel flow meters monitor the relationship between the depth of the liquid and the flow rate. In contrast, most other flowmeters use mass or volumetric data to determine flow rate. In order to do their work, open channel flow meters typically use ultrasonic transducers, pressure sensors, shaft encoders, or special radars that can function in a free surface.

Other types of open channel flow measurement include: area/velocity flow measurement, level to flow measurement (measured at a designated point behind a weir, in a flume, or other hydraulic pumps, using various secondary devices), dye testing (when operators add a known amount of dye (or salt) per unit time to a flow stream. After complete mixing, they measure the concentration; the dilution rate equals the flow rates.), and Acoustic Doppler velocimetry (used to record instantaneous velocity components at a single point with a relatively high frequency, uses the Doppler shift effect to measure the velocity of particles in a remote sampling volume).

Open channel flow meters work where traditional flow meters cannot. Specifically, traditional flow meters cannot work where the top surface of a liquid is exposed to the open air. Most commonly, open channel flow meters are used in water and wastewater industries, as water and wastewater are by and large the most common liquids found in open channel flows. However, they are also popular anywhere open channel flows are found. They can even measure flow in rivers.

Regardless of your exact application, if you seek an open channel flow meter, you need to find a supplier that is knowledgeable on the subject, skilled, and reliable. Find that supplier by browsing the websites of those flow meter manufacturers and distributors that we have listed on our website, and reaching out to one or more of them with your specifications.

Open Channel Flow Meter Informational Video

 
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