Open Channel Flow Meter

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Open Channel Flow Meter

Open channel flow meters are not like other flow meters as the applications that they are utilized in deal with open channels that are free flowing.

Instead of using mass or volumetric data to determine the rate of flow of a substance, open channel flow meters monitor the relationship between the depth of the liquid and the flow rate.

The reason for the differences compared to the other mechanical and pressure based flow meters is that due to the free surface in open channel applications, traditional flow meter strategies cannot take place as the top surface of liquid is open to the air.Read More…Request for Quote

In order to better understand open channel flow meters, one must first understand open channel flow. As stated an open channel flow is a flow of fluid where there is one free surface present in which the only pressure on it is that pressure of gravity.

Open Channel Flow Meter Open channel flow meters are not like other flow meters as the applications that they are utilized in deal with open channels that are free flowing.

Leading Manufacturers

Monterey, CA  |  800-866-0200

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.

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Sierra Instruments $$$

West Valley City, UT  |  800-316-5342

HydraCheck offers everything needed to service, maintain and troubleshoot hydraulic systems at prices you can afford. We manufacture and distribute diagnostic test kits, flow meters, pressure gauges, tachometers, etc.

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HydraCheck $$$

Chatsworth, CA  |  800-356-6387

Flowmetrics provides a variety of flow meter products including in-line, insertion, turbine and variable area flow meters plus rotameters. We also have signal conditioners and convertors; magnetic pickups; field indicators and batch controllers. Contact us today for all of your flow meter needs!

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Flowmetrics, Inc. $$$

Roselle, NJ  |  800-899-0553

Assured Automation supplies economical durable, compact, high precision digital fluid flow meters through its Quick-Ship program for fast delivery. Its industrial flow meters measure both rate and totals for liquids, including water, fuel, LPG and caustics. A wide variety of flow meters are available, providing cost-effective solutions for each industrial application.

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Assured Automation $$$

Itasca, IL  |  888-539-3623

Keyence is a leading supplier of flow meters and many other automation components. Our flow meters are compatible with everything from compressors to receiving tanks to machine drop points, while measuring both overall usage and costly leakage amounts. Additional features include multiple numerical and graphical data displays. Visit our website to find out more about our products.

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Keyence Corporation of America $$$
placeholder image Sierra Instruments HydraCheck Flowmetrics, Inc. Assured Automation Keyence Corporation of America
Open Channel Flow Meters Open Channel Flow Meter - Siemens Process Instrumentation

In some cases this type of flow can also be referred to as free gravity flow. There are a number of different types of open channel flow depending on the environment that they are found in as some have no changes in the depth of liquid where others have a constant, unsteady flow. Because there are so many variables in open channel flow, there must also be a wide range of selection when it comes to open channel flow meters.

These devices typically consist of ultrasonic or special radar styles that are still able to function while traditional pressure based flow meters do not due to the free surface found in open channel flows.

While these flowmeters can be used in a number of industries, the two most common are in wastewater and the water industries as these are the two most common liquids that are found in open channel flows.

Whatever your application may be, it is important to find a knowledgeable expert on the topic before making a purchase in order to ensure that the product you are receiving is a product that will meet and exceed your expectations. We recommend high quality flow meter manufacturers who will listen to your application and suggest the best flow meter for you based on your needs and specifications.

Open Channel Flow Meter Informational Video