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Most of the flume styles currently used to measure the flow of water in non-full pipes were not originally conceived to handle such flows. While engineered transitions – end adapters – have been developed for some of these flumes, many installations have site-formed…

Publically owned wastewater treatment plants (POTWs) collect wastewater from homes, commercial and industrial facilities and remove harmful organisms and other pollutants so that the treated water can be returned to the environment without impact the receiving waters. As part of…

Covers are used over flumes and weir boxes for a number of different reasons: eliminating inflow, aesthetics, operator safety, foam, sensor protection, or containing foaming / splashing flows. To meet these applications, Openchannelflow offers solid and transparent covers in both…

When comparing flumes from different companies ask one simple question first:

We are frequently asked if a stilling well can or should be used on a flume at the headworks of a wastewater treatment plant (WWTP). The answer is: no, a stilling well should NOT be used at a headworks – even if the flow conditions are turbulent.

Over time a primary device’s (flume or weir) staff gauge may need to be replaced. Wear, vandalism, nature of the flow stream, and device construction can all play parts in a gauge needing to be replaced. When replacing a gauge there are two styles available: adhesive gauges and…

Wing walls are nothing more that flat (typically) walls that extend from the channel banks to the flume. Their purpose is to direct flow into the flume in a controlled manner.

The 60-inch Parshall Flume is a large flume, usually shipped in two pieces, that is primarily used to measure flows for water rights and watershed measurement as well as at sewage treatment plants. The 60-inch Parshall Flume is useful in a number of applications:

The Large 60º V Trapezoidal flume is one of the original Trapezoidal flumed developed. The flume has good low-end resolution, while the v-shaped cross section allows for larger flow rates to be measured with reasonable head. Solids passage is good with the flume having a flat…

The 4-inch Palmer Bowlus Flume is the smallest of the Palmer Bowlus family of flumes. The flume can pass sanitary solids without clogging. Palmer Bowlus Flumes are not usually used to measure surface waters.

The 18-inch Parshall Flume is mainstay at wastewater treatment plants. It can also be found out in the field helping to measure water rights. Openchannelflow's 18-inch Parshall Flume is available in several configurations:

The 6-inch Parshall Flume is one of the sizes developed by Dr. Parshall during his initial studies. The flume works well in measuring water rights and can be found as smaller wastewater treatment plants. The 6-inch Parshall Flume has been successfully used to measure flow in a…