CUTTHROATIn
the mid-1960’s the Utah State University Water Research Laboratory
began development on a new type of flume for use in flat gradient
channels. The result was
the Cutthroat flume, so named due to the absence of a parallel-wall
throat section (as on the Parshall flume). Commonly used in stream gauging and agricultural
applications, the use of the Cutthroat flume is now expanding into
sanitary and flow splitting applications.
54” x 24” Cutthroat flume, Snowflake AZ
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Primary advantages include:
- The straight through bottom (for silt and debris passage)
- Simplicity of form
- Scalability to intermediate sizes
- Constant dimensional configuration
- Able to operate under free flow conditions with submergence ratios up to 79-88% (depending upon the flume size)
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Cutthroat
flumes are sized by throat width and overall length. A number of styles
are commercially available. The most commonly used types are listed in
the chart below. Note that it is not uncommon for intermediate (or even
custom) sizes to be specified.
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Options
and Accessories
- Ultrasonic mounting
brackets
- Bubble tubes
- Sample tubes
- Submerged probe
cavities
- Stilling wells
(attached and detached)
- Staff gauges
- Removable probe
holders
- Fiberglass grating
- Multi-piece
construction
- Nesting
- Chemically resistant
gel coat
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Listed
below are standard Cutthroat flumes and their recommended flow ranges.
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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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