Blog

The ultrasonic flow meter is one of the instrumentation workhorses for measuring open channel flows in general, and flumes in specific.  Ultrasonic flow meters are generally low cost, robust, and provide a reasonable level of accuracy (+/- 0.02’ for a head change of…

Customer - Solutia, Inc. a subsidiary of Eastman Chemical Company Solutia needed to measure interplant flows in several existing concrete channels.  The concrete channels had a protective coating for resistance to adipic acid and could not be modified.  Any flow…

Using flumes to measure flows in cold climates brings a set of challenges not otherwise faced in warmer climate applications.  Some of the problems that can be encountered when using flumes in cold climates include: Blockage Submergence Frost heave Settling Flow bypass

The 2-inch Parshall Flume is the second smallest of the Parshall Flumes. Like the 1-inch, the small size means that it is somewhat limited in use. When used to measure sanitary flows, the flow entering the flume must be well screened, or it will clog. The 3-inch Parshall Flume is…

With Free Flow, Inc. (formerly of Gretna, NE) closing last year, Openchannelflow would like to extend a welcome to its former customers who are in need of assistance with their flow monitoring needs. Free Flow was primarily know for three product lines: Flumes (Parshall /…

Many kinds of flume are in use today around the world, in applications as diverse as dam seepage monitoring to industrial pre-treatent discharge.  These flumes can be divided into two different classes:  short throated and long throated.

For many engineerings and end-users the default configuration for flume always includes a stilling well...and why not?  When they work, they work great - providing a convenient area to measure the flow in a flume.  When they don't work....well that's another…