Blog

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…

H Flumes are one of the more versatile styles of flume when it comes to customization for site conditions. Versatility with the approach section length / layout mean that a wide variety of inlet conditions can be accomodated. While on the outlet side, drop box structures can…

One of the oft-mentioned benefits Packaged Metering Manholes is the ability to integrate flumes and other structures that are larger than the manhole barrel diameter, but what exactly does this mean? For below grade applications – typically sanitary sewer mains or…

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…

When we talk of “or equal” what exactly does that mean when we are talking about fiberglass Parshall flumes?

To some people a flume, is a flume, is a flume. They are all based on the same dimensional standards, so it doesn’t really make a difference who makes it. Right? We were recently sent photos of an H Flume installation at a commercial laundry. The flume was completely…

One question we get asked time and time again is: do I need fiberglass / galvanized / stainless steel wing walls for my fiberglass / galvanized / stainless steel flume or can I just form them on my own? The short answer is no, they don’t need to be made of the same material as…

Years ago the Thompson Pipe & Steel Company in Denver, CO manufactured knock-down Parshall flumes for use in water rights / irrigation flow measurement – selling quite a number throughout the Rocky Mountain region. Thompson has long since exited this market and now many of…

The USGS has posted an excellent video of how the discharge can vary widely over a short period of time at an edge-of-field site. The site uses a H flume provided by Openchannelflow to measure and analyze the discharge off a field near Fort Wayne, IN.

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 less than…

Built in 1953, the Pensacola Plant is situated on a 2200 acre tract, 12 miles north of the City of Pensacola, on the Escambia River. Solutia is the world's largest producer of nylon carpet staple. The facility produces nylon polymer chips for the automotive and electrical…