Side view of galvanized steel 1-inch Parshall Flume
top view of a 1-inch galvanized steel Parshall Flume

Galvanized Steel 1-Inch Parshall Flume

$880.00
$880.00
Shipping calculated at checkout.

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.

Galvanized steel should never be used on sanitary flows. 

Material of Construction: 

  • Galvanized steel 

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

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 

Installation:

  • Level:
    • Front-to-back and side-to-side
  • Upstream requirement:  
    • Upstream channel straight at least 15-inches
  • Downstream requirement:  
    • Free-spilling discharge or downstream channel straight at least 5 to 20-inches

Shipment:

  • 4-6 weeks from order
  • Boxed
  • UPS Ground (domestic) / USPS (international)
  • FREE domestic shipping (select at checkout)!
  • International orders require additional shipping