Aluminum 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.

Aluminum Parshall flumes are lightweight and abrasion resistant and are an excellent choice where site access is limited.

Material of Construction:  

• Aluminum

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

Shipment:

• 3-5 weeks from order
• Boxed
• UPS Ground (domestic) / USPS (international)
• FREE domestic shipping (select at checkout)!
• International orders require additional shipping charges