6” Parshall flume with inlet and outlet
end adapters, staff gauge,
and attached stilling well

Developed in 1922 by Ralph L. Parshall for the United States Bureau of Reclamation, Parshall flumes are the most widely used type of flume for permanent flow monitoring installations. With wide flow ranges, resistance to submersion, simple flow meter calibration, and self-cleaning design, Parshall flumes are the first choice of many engineers and end-users.

Parshall flumes are sized by throat width and conform to standardized dimensions published in the U.S. Department of the Interior, Bureau of Reclamation, Water Measurement Manual.

Typical applications include:

• Sewage treatment plant influent and effluent
• Industrial process discharge
• Irrigation and agricultural runoff

Options and Accessories

• 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
• FRP grating
• Inlet and outlet wingwalls
• Multi-piece construction
• Nesting
• Chemically resistant gel coat

Listed below are the available Parshall flume sizes and their recommended flow ranges.

Specifications - Installation Instructions - Typical Drawing

If you would like additional information, pricing, or assistance in sizing and specifying a flume, please fill out and submit our
flume application form.

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