Blog

Mill Creek Regional - Effluent Tunnel - 120-Inch Parshall Flume

One of the problems contractors often face when installing a flume in a concrete manhole is forming the transitions into / out of the flume. Done poorly and the result is a flume that either experiences turbulence or submergence – both which will seriously compromise the…

Over the years several different styles of Palmer Bowlus flume have come into the marketplace, including the Insert style. While the original Palmer Bowlus flume was intended to be used in-line with piping, the Insert style is intended to nest into an existing pipe – not…

Can a new flume be installed in an existing Packaged Metering Manhole? Maybe. There are a number of factors to consider: manhole barrel diameter, manhole top style, existing flume style / size, and desired flume style / size.

Openchannelflow manufactures fiberglass Parshall flumes in sizes from 1 inch to 12 feet. Constructed of premium polyester resin, Openchannelflow’s Parshall flumes conform to ASTM D1941-91, ISO 9826:1992, JIS B7553, and the Bureau of Reclamation’s Water Measurement…

Putting a flume in really isn't that hard. You can really break down it down into five steps: Now is the time to take the time to get familiar with the flume. Make sure that you understand how the needs to sit in the channel. The important thing here is to know which end goes…

Reduced height flumes provide a convenient solution to applications where the anticipated flows at a site do not warrant a large flume, but where the flow channel is wider than can otherwise easily / economically accommodate a smaller flume.

Unless you use or put in flumes for a living, you may not be familiar with the layout of a typical flume installation. The components of most flume installations are: the flume (naturally), the sensor, and the flow meter.

We've collected a series of photos exclusively showing fiberglass Parshall flumes in a variety of different sizes. We're visual people and prefer pictures over words. 18" Parshal Flume with Inlet Wing Walls [sandwiched between (2) 12" Parshall Flumes]

When investigating a flume’s operation, one thing to look for is the presence of submergence. Certain visual clues can help an operator to make informed assumptions regarding a flume’s performance.

Sometimes we come across an installation in the field where we want to show you have others have solved problems that you may be wrestling with. On a recent site visit, a customer showed us a discharge chute that they had developed to minimize erosion downstream of their Parshall…

Openchannelflow is please to announce the addition of a new section to the web site: Palmer Bowlus Flumes! The section wil be full of the same high quality research and information on Palmer Bowlus flumes that you have come to expect from our other flume products. Over the next…