Open channel flow meters made of fiberglass reinforced plastic (FRP). 

​

Corrosion resistant, maintenance free, dimensionally stable, low weight, easy to install, accurate and economic.

​

They do not require an additional metal strip since our Parshalls have a flow measurement scale, encapsulated within the plastic laminate along a size indicator, flow entry direction, serial number, and identification.

​

Parshalls are graded according to the throat width size indicated in inches.

​

Parshall immediate delivery of 1”, 2”, 3”, 6”, 9” and 12”

​

Parshall from 16" to 120" throat width, manufactured by order.

​

Dimensions certified according to Colorado State University Technical Bulletin 61 and US Department of Agriculture Soil Council Circular 843.

​

In accordance with International Standards ASME RTP-1-2015, ASTM D4097-95 and NBS PS 15-69