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Openchannelflow offers bolt-down covers as an option for flumes and weirs. The covers are suitable whether the flume or weir is above grade, below grade, or installed in a Packaged Metering Manhole.

Packaged Metering Manholes factory integrate a flow measurement flume / weir into a fiberglass manhole to provide a complete, turn-key solution to monitor industrial and municipal flows. Openchannelflow Packaged Metering Manholes come complete and ready for immediate…

The Iowa Institute of Hydraulic Research has posted an excerpt of one of their older videos, Fluid Motion in a Gravitation Field: Flow Over Weirs. The video, developed with the support of the National Science Foundation, covers, among other things, the need for aeration of a weir…

In its simplest form a Packaged Metering Manhole (PMM) consists of a primary device (typically a flume or weir) molded into a fiberglass (FRP) manhole. By directly factory integrating the primary device, a single-piece, drop in-place flow monitoring solution is created.

At Openchannelflow, we continually strive to make our products as easy as possible to use. Ultimately we want you to think of them as appliances...something you can use without having to think about it. We want you focused on your data, not how you collected that data. To that…

Bubbler flow meters can be an excellent flow meter choice when measuring flows in flumes or weir boxes. They are unaffected by wind, foam, steam, and floating solids and provide a high level of measurement accuracy. Adapting bubbler meters for use with flumes and weir boxes is…

As we’ve seen before in our comparison of H-flume and Parshall flume manufacturers, not all “equal” products are just that…equal.

Drop-in-place Solution for Storm Water Flow Measurement and Control Lonza Mapleton specializes in intermediate chemical products for the hygiene, water treatment, and materials protection markets. The plant manufactures a wide range of long chain alkly chlorides, amines, and…

The key to an accurate weir installation is the correctly sizing the upstream weir pool. To guarantee a successful weir installation, just keep these 9 easy steps in mind!

With Free Flow, Inc. (formerly of Gretna, NE) closing at the end of 2012, Openchannelflow would like to extend a welcome to its former customers who are in need of assistance with their flow monitoring needs. Openchannelflow offers these as well as many other products for the…

Sometimes measuring discharge from lakes and ponds can be challenging…particularly when there isn’t a convenient spot to put a discharge weir or flume.

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 matter.