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STAGE
MEASUREMENT
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Parshall
Flumes
The Parshall Flume is the most widely used flume
and has been the standard for flume measurements
since designed in the 1930's. The main advantage of
the Parshall Flume is its relatively low loss of
head. The head loss is only about a fourth of that
needed to operate a weir having the same crest
length. This allows a wide operating range for a
given size flume. The tapered approach section
followed by the downward sloping floor of the throat
gives the Parshall flume its ability to withstand
relatively high degrees of submergence without
affecting the flow rate. Another advantage of the
Parshall Flume is its self-cleaning capacity.
- Standard Parshall Flume sizes 1 inch through
72" throat width.
- Available without discharge section resulting
in short overall length for applications where
submerged flow does not occur (modified Parshall
Flume)
Specifications:
Fabricated from reinforced polyester fiberglass
with permanent smooth white gel-coat finish on
wetted surfaces, aluminum, galvanized steel, or
stainless steel.
Available Options:
- Embedded staff gages in feet, tenths and
hundredths of a foot
- Ultrasonic sensor mounting brackets
- Removable stainless steel bubble tubes
- Submerged probe cavities
- Stilling wells (attached and detached)
- FRP grating over the flume
- Pieced assembly for portability
 
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809-050 1"
Parshall Flume
809-051 2"
Parshall Flume
809-052 3"
Parshall Flume
809-053 6"
Parshall Flume
809-054 9"
Parshall Flume
809-055 12"
Parshall Flume
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809-056 18"
Parshall Flume
809-057 24"
Parshall Flume
809-058 36"
Parshall Flume
809-059 48"
Parshall Flume
809-060 60"
Parshall Flume
809-061 72" Parshall
Flume |
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