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Trapezoidal flumes are popular choice when industrial users need to measure pretreatment discharges.  The flumes provide: Good resistance to submergence Pass solids and sediments well Able to accurately measure low flows Suiteable for sanitary / mixed industrial flow streams…

Many people confuse a flume’s resolution with its accuracy and use the terms interchangeably.  The two, however, are distinct from each other.  A flume may have good resolution, but poor accuracy, and vice versa.

It’s not uncommon in catchment, surface water, and watershed applications to only need to monitor a site for several seasons or years.  Sometimes, in fact, there is a need to be able to dismantle the installation after the monitoring period has been completed. …

For flume and weir applications where the flow entering the device may not be as well distributed as one would like / or where the velocity profile needs adjustment, perforated baffle plates can be a good choice. Used in a series of two or more, perforated baffle plates help…

One advantage that the Cutthroat flume has always had over other short-throated flume like the Parshall or Trapezoidal was the ability to develop intermediate width flumes for one of the four standard lengths.    But what if the standard lengths don’t yield a…

RBC flumes are small, portable long throated flumes designed specifically for use in small earthen channels and furrows.  The five flumes are scale models of each other, with each flume possessing a trapezoidal throat varying in size, bc, from 50 to 200 mm [1.968 to…

Freestanding staff gauges are a good solution to the need to measure level in a flume, weir, or channel.  They are also useful in stream gauging or as replacements for other gauges that are damaged or no longer readable. Openchannelflow fiberglass freestanding staff gauges…

Reinforced weir boxes are a convenient way of measuring seepage flows out of a dam when the pipe is just below grade.  Reinforcing the sidewalls of a weir box can allow the structure to withstand the pressures exerted by the soil in shallow burial applications. In these…

Flumes of all styles are used in the measurement and treatment of wastewater.  Wastewater applications can be municipal or industrial in nature and their content can be sanitary (including mixed) or non-sanitary.

H Flumes are widely used to measure edge-of-field flows.   The ability of the H Flume to pass sediments easily and the wide range of flows that it can accurately measure make the flume uniquely suited to the application.   Here a time-lapse video…

Stainless steel is often viewed as the material of choice for Parshall flumes when severe corrosion is expected or when abrasion is a concern.   For Parshall flumes, the split between T-304 and T-316 stainless steel is about 60 / 40, with more flumes being constructed…

Although initially developed to measure runoff from watersheds and experimental plots, the H Flume has proven to be quite flexible in its mounting configurations. H Flumes can be a part of a fiberglass packaged metering manhole, free-standing, or embedded in concrete or earthen…