Fiberglass 1-Inch Parshall Flume

1-inch Parshall Flume Description: Developed in 1960 at the Colorado Agricultural Experiment Station, the 1-inch Parshall flume is commonly used to measure water flowing in creeks, furrows, irrigation canals, and channels. 1-inch Parshall flumes should not be used on sanitary flows. Material of Construction:   Fiberglass (FRP) Flow Rates:   0.0033 - 0.1945 cfs (cubic feet / second) 1.460 - 87.27 gpm (US gallons / minute) 0.0021 - 0.1257 mid (US million gallons / day) Flow Accuracy: +/- 2-5% (ASTM D1941) Flow Formula (H = feet): Q (cfs) = 0.338 * H^1.55  Q (gpm) = 151.7 * H^1.55 Q (mgd) = 0.2184 * H^1.55  Downloadable flow chart Head: 0.05 - 0.70-feet 0.60 - 8.40-inches Flow Dimensions: Inlet width:  6 19/32-inches Throat width:  1-inch Outlet width:  3 21/32-inches Length:  23-inches Inlet height:  9-inches Throat height:  10 1/2-inches Outlet height:  9 3/4-inches   Downloadable dimensions drawing Installation: Level: Front-to-back and side-to-side Upstream requirem