Parshall Flumes Solutions

For Permanent Flow Monitoring Installations

Parshall flumes are the most widely used type of flume in the industry. Developed in 1922 by Ralph L Parshall, the Parshall flume was designed for the United States Bureau of Reclamation. Then it was used for permanent flow monitoring installations. Today, it does the same, however includes many options and accessories and is used for many reasons.

Options & Accessories

TRACOM has worked with various wastewater management companies across the world for over 30 years. We understand that each system is different and needs various items to run most efficiently. This is why we provide a long list of options and accessories for Parshall flumes. Contact a specialist today to see which options work best for your company’s needs!

Ultrasonic mounting brackets
Bubble tubes
Sample tubes
Submerged probe cavities
Stilling wells (attached and detached)
Staff gauges
Removable probe holders
Inlet and outlet end adapters
Pipe stubs
Flanged end connections
Flow straighteners
Fiberglass grating
Inlet and outlet wingwalls
Multi-piece construction
Nesting
Chemically resistant gel coal

Benefits

Because of their many benefits, Parshall flumes are used in a wide variety of applications. These flumes are often the first choice of many engineers and end-users, due to their certain abilities including:

Applications

Parshall flume sizes range from 1” to 144” and can also be custom sized. They are an accurate and economical way for permanent flow monitoring. Over the years, TRACOM has helped wastewater management organizations use Parshall flumes in a variety of ways, such as:

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Parshall Flumes and Wastewater Plants

November 30, 2021

Parshall flumes are among the most common things you’ll spot at a wastewater treatment plant, and that’s no accident. In addition to its standard surface …

Frequently Asked Questions

What is the difference between a Montana and a Parshall flume?

A Montana flume is essentially a shortened Parshall flume. It removes the throat and discharge section of the Parshall, allowing the same measurement options as a Parshall, at more than half the length. The downside is that a free-flow drop is recommended, as pipe stubs cannot be installed onto a Montana.

What size Parshall flumes does Tracom sell?

Tracom sells Parshall flumes. We make 1″, 2″, 3″, 6″, 9″, 12″, 18″, 24″, 30″, 36″, 48″, 60″, 72″, 84″, 96″, 120″, and 144″ sizes. The Parhsall flume size refers to the width of the flume at the throat section.

Technical Details

Size & Style	Recommended Flow Rates
1”	2 – 85 GPM
2”	3 – 210 GPM
3”	4 – 834 GPM
6”	22 – 1,754 GPM
9”	40 – 3,979 GPM
12”	146 – 7,336 GPM
18”	227 – 11,021 GPM
24”	296 – 14,853 GPM
30”	366 – 18,721 GPM
36”	434 – 22,618 GPM
48”	567 – 30,484 GPM
60”	995 – 38,426 GPM
72”	1,181 – 46,431 GPM
84”	1,828 – 54,489 GPM
96”	2,076 – 62,591 GPM
120”	2,575 – 162,414 GPM
144”	3,057 – 275,541 GPM
Note: 1” and 2” Parshall flumes are not recommended for sanitary flows

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Parshall Flumes and Wastewater Plants

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