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A flow measuring weir is simply a structure over which water flows in such a way that volumetric flow rate can be calculated….it lets you know how much water is flowing!  Many times a flow measuring weir is simply a thin plate across a flow stream, but weirs can also…

Weirs are often described as “simple” and “low cost” ways of measuring open channel flows and, made of some materials they really are low cost. But this low cost comes at a price (no pun intended). Steel plate is frequently used to keep costs down and,…

As we reach our 300th blog, we were looking for a topic that went to the core of who we are at Openchannelflow.   Then the idea came to us:   Let's talk about who we are and what we stand for! Openchannelflow is a skilled manufacturer of devices for the measurement,…

Generally when we look at applying a flume to measure flow we are more concerned that the flow is not too energetic.  Sometimes, however, the flows can be too slow and too solids laden. When this happens on low flows where the sediment load is high (and the sediment heavy),…

It isn’t always desirable or practical to measure industrial effluent flows below grade.  For those applications, Openchannelflow takes our proven Redstone fiberglass enclosures and nests a flow-measuring flume or mag meter. 

To give our building, shelter, and enclosure products superior strength and dimensional stability, Openchannelflow has developed proprietary X-web technology. Each wall or roof section is composed of insulating foam core section.  Around these X-web construction structurally…

Whether you call them buildings, shelters, or enclosures, pre-engineered structures from Openchannelflow offer superior walk-in protection of equipment and process machinery for even the harshest of conditions.

While many composite wastewater samplers on the market today tout NEMA 4X housings, the need to house and protect them has not gone away. Whether the need is to protect the sampler from vandalism or the corrosive effects of a treatment plant environment, fiberglass sampler…

Weirs, like flumes, work by accelerating slow, sub-critical flow to faster moving, super-critical flow.  The acceleration develops a know relationship between level and flow upstream of the weir itself. But what happens when the flow approaching the weir isn’t…