Galvanized Steel 18-Inch Parshall Flume

Galvanized Steel 18-Inch Parshall Flume18 inch Parshall Flume Description: The 18 inch Parshall flume is useful for measuring both water rights irrigation flows as well as surface water flows. Galvanized steel should never be used to measure sanitary flows. Material of Construction: Galvanized steel Flow Rates: 0. 1738 24. 56 cfs (cubic feet second) 78. 02 11,021 gpm (US gallons minute) 0. 1124 15. 87 mgd (US million gallons day) Flow Accuracy: + 2 5% (ASTM D1941) Flow Formula (H = feet):

18-inch Parshall Flume

Description:

The 18-inch Parshall flume is useful for measuring both water rights / irrigation flows as well as surface water flows.

Galvanized steel should never be used to measure sanitary flows.

Material of Construction:  

• Galvanized steel

Flow Rates:  

• 0.1738 - 24.56 cfs (cubic feet / second)
• 78.02 - 11,021 gpm (US gallons / minute)
• 0.1124 - 15.87 mgd (US million gallons / day)

Flow Accuracy:

• +/- 2-5% (ASTM D1941)

Flow Formula (H = feet):

• Q (cfs) = 6 * H^1.538 
• Q (gpm) = 2,693 * H^1.538
• Q (mgd) = 3.878 * H^1.538

•  Downloadable flow chart

Head:

• 0.10 - 2.50-feet
• 1.20 - 30.00-inches

Flow Dimensions:

• Inlet width:  40 3/8-inches
• Throat width:  18-inches
• Outlet width:  30-inches
• Length:  115 7/8-inches
• Inlet height:  36-inches
• Throat height:  45-inches
• Outlet height:  39-inches 

•  Downloadable dimensions drawing

Installation:

• Level:
• Front-to-back and side-to-side
• Upstream requirement:  
• Upstream channel straight at least 22 1/2-feet
• Downstream requirement:  
• Free-spilling discharge or downstream channel straight at least 7 1/2 to 30-feet

Shipment:

• 5-7 weeks from order
• Palleted
• Box truck
• Get FREE domestic shipping (select at checkout)!
• Appointment delivery included (get it delivered when it's convenient for YOU)!
• Make sure you can offload prior to ordering
• International orders require additional shipping