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Blog
How Durable is a Fiberglass (FRP) Flume Anyway?
Time and again the question arises: how durable is a fiberglass flume anyway? To understand the answer, it is important to understand the nature of fiberglass. Fiberglass (aka glass-reinforced plastic, glass-fiber reinforced plastic, glasfaserverstärkter…
Baffled by (Weir) Baffle Plates?
Weir boxes are frequently fabricated without the use of a baffle upstream of the point of measurement. The omission of a baffle plate (sometimes called surge plates) saves both space and money, but at what cost? In applications where the velocity profile is normal and…
Partial to Parshall Flumes?
Since its development at the beginning of the last century, the Parshall flume has proven to be a versatile and long-lived invention for the measurement of water in open channels. More Parshall flumes are sold for water measurement than all other flume types…
Metering Manholes
What's a Nested (Dual-Range) Flume?
Whether you call them nested, dual-range, or flume reducer inserts (and we've heard them all), nested flumes are an innovative solution to the problem of measure two substantially different flow ranges over time. By nesting a small, lower flow rate flume inside of a…
How to Read a Parshall Flume
One of the advantages of the Parshall flume is how easy it is to use! Unlike Palmer-Bowlus or RBC flumes, there are no zero height offsets to worry about. Just inspect the flume, find the point of measurement, and stick / gauge to the bottom of the flume. Under…
How Does an Ultrasonic Flow Meter Work?
Ultrasonic flow meters measure the level in a channel by transmitting a pulse of sound from the face of the sensor to the surface of the flow stream and measuring the time for the echo to return. The transit time corresponds to the distance between the face of the sensor…
What is a Flow Metering Manhole Anyway?
Reduced to its most basic elements, a Metering Manhole is a composite (FRP) manhole with a factory integrated flow element to measure the flow of water in a pipe. Most Metering Manholes integrate flumes (typically Parshalls), although weirs and magnetic flow meters can also…
Sections Of A Flow Measuring Flume - Their Location and Function
In order to better understand flumes and how they can be applied to the measurement of flows in open channels it is useful to understand the sections of a flume and their specific functions.
LOCATIONS IN ATLANTA, GA & BOISE, ID