Parshall Flume Guide for Beginners

If you’re a newcomer to the open channel flow management industry, you might be overwhelmed by the variety of flow measurement devices available. While all of these devices have their strengths, the best option for most operations is the Parshall flume.

Parshall flumes are the go-to tool for flow management operations who want the most reliable measurements possible, and if you’re unfamiliar with this device, it’s important to learn a little more about its benefits so you can decide if it’s the right fit for your operation. Here is a Parshall flume guide to help you learn the basics of this popular flow management device and get ready to install one in your system.

Applications Where You Can Use the Parshall Flume

When the Parshall flume was designed, its purpose was to provide a flow management device that was not subject to the limitations of weirs and rating flumes. Thanks to the unique design of this flume, it can be installed in a wide variety of applications, which is why it’s such a popular choice for flow management operations throughout the world.

For instance, these flumes are frequently used in outdoor flow management applications, including measuring stormwater and irrigation runoff, as well as dam seepage. They’re also a great choice for industrial flow management operations, including wastewater treatment. Almost anywhere you need to measure flow, you can use a Parshall flume.

Strengths and Weaknesses

In our flume guide section, you’ll learn about the advantages and disadvantages of this flume, which should help you decide if it’s the right fit for your system. Let’s start with the benefits. First, the wide use of these flumes means most operators already understand how to use these devices correctly, which eliminates the need for training. Second, Parshall flumes are resistant to both submergence and the build-up of solids, reducing ongoing maintenance needs. Finally, they can easily be connected to a pipe.

The disadvantages of this flume are limited but must be considered. Smaller sized Parshall flumes, for instance, are more vulnerable to clogging when used to measure wastewater. Also, because these flumes require a drop in elevation to work correctly, they are difficult to retrofit in certain situations.

When to Avoid Parshall Flumes

There are certain circumstances when you shouldn’t install a Parshall flume. First, these flumes don’t handle low flows as well as other styles. If the rate of flow in your system is consistently low, you may want to choose another flume. Second, Parshall flumes usually aren’t a good choice when you’re working with a limited amount of installation space. Finally, if the installation channel is flat, you’ll need a different flume style.

Buy Your Parshall Flume

After reading this Parshall flume guide, you should have a firm understanding of this proper style of flume and be able to decide if it fits the needs of your operation. If you want to buy a Parshall flume, your you would like more information about this device, the Tracom, FRP team is here to serve you.

Tracom is your top resource for fiberglass Parshall flumes, as well as other fiberglass open channel flow products. You can contact us today to purchase your flume or to get answers to your flow management device questions.