Aluminum 3-Inch Parshall Flume

Aluminum 3-Inch Parshall Flume3 inch Parshall Flume Description: The largest of the small Parshall flumes developed at the Colorado Agricultural Experiment Station, the 3 inch Parshall flume is commonly used to measure water flowing in creeks, furrows, irrigation canals, and channels. While the 3 inch Parshall flume is the smallest Parshall flume that should be used on sanitary flows, aluminum is not normally used on such flows. The 3 inch Parshall flume is commonly used to

3-inch Parshall Flume

Description:

The largest of the small Parshall flumes developed at the Colorado Agricultural Experiment Station, the 3-inch Parshall flume is commonly used to measure water flowing in creeks, furrows, irrigation canals, and channels.

While the 3-inch Parshall flume is the smallest Parshall flume that should be used on sanitary flows, aluminum is not normally used on such flows.

The 3-inch Parshall flume is commonly used to measure industrial discharges.

Material of Construction:  

• Aluminum

Flow Rates:  

• 0.0280 - 1.860 cfs (cubic feet / second)
• 12.55 - 834.7 gpm (US gallons / minute)
• 0.0181 - 1.202 mgd (US million gallons / day)

Flow Accuracy:

• +/- 2-5% (ASTM D1941)

Flow Formula (H = feet):

• Q (cfs) = 0.992 * H^1.55 
• Q (gpm) = 445.2 * H^1.55
• Q (mgd) = 0.6411 * H^1.55

•  Downloadable flow chart

Head:

• 0.10 - 1.50-feet
• 1.20 - 18.00-inches

Flow Dimensions:

• Inlet width:  10 3/16-inches
• Throat width:  3-inches
• Outlet width:  7-inches
• Length:  36-inches
• Inlet height:  24-inches
• Throat height:  26 1/4-inches
• Outlet height:  25-inches 

•  Downloadable dimensions drawing

Installation:

• Level:
• Front-to-back and side-to-side
• Upstream requirement:  
• Upstream channel straight at least 45-inches
• Downstream requirement:  
• Free-spilling discharge or downstream channel straight at least 15 to 60-inches

Shipment:

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