Your #1 Montana Flume Supplier
A modification of the Parshall flume, montana flumes conform to the standard dimensions set forth for Parshall flumes except that the portion of the flume downstream from the end of the converging section is removed. So long as the flume has been set for free flow where it is not expected to operate above the submergence limit, the flume conforms to the discharge characteristics of the similarly sized Parshall flume.
Industrial process discharge
Irrigation and agricultural runoff
Modified Parshall Flume
Not for submerged operations
Available in Multiple Sizes with Many Options
As with Parshall flumes, montana 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. It is available with a wide variety of options and accessories.
Typical Applications
- Industrial process discharge
- Irrigation and agricultural runoff
Actual application of the montana flume is limited due to the concern regarding submerged flow.
Options and Accessories
- Ultrasonic mounting brackets
- Bubble tubes
- Sample tubes
- Submerged probe cavities
- Stilling wells (attached and detached)
- Staff gauges
- Removable probe holders
- Inlet end adapters
- Pipe stubs
- Flanged end connections
- Fiberglass grating
- Inlet wingwalls
- Multi-piece construction
- Nesting
- Chemically resistant gel coat
Technical Details
| Size & Style | Recommended Flow Rates |
|---|---|
| 1” | 2 – 85 GPM |
| 2” | 3 – 210 GPM |
| 3” | 3 – 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 |
Additional Examples
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