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Welcome! Openchannelflow manufacturers a full range of flumes for the measurement of water and wastewater.  

Accurate and cost effective, Openchannelflow flumes are highly customizable and built to withstand the most demanding of applications.
Welcome!
Openchannelflow manufacturers a full range of flumes for the measurement of water and wastewater. Accurate and cost effective, Openchannelflow flumes are highly customizable and built to withstand the most demanding of applications.
Flumes
Dig it! Drop it! Done! Openchannelflow fiberglass manholes can be used for flow measurement (full and non-full pipe), energy dissipation, flow splitting, debris screening, and sewage grinding.
Dig it! Drop it! Done!
Openchannelflow fiberglass manholes can be used for flow measurement (full and non-full pipe), energy dissipation, flow splitting, debris screening, and sewage grinding.
Manholes
Protection! To protect your equipment investment, Openchannelflow offers single and multi-piece fiberglass equipment shelters in sizes from 4' to 20' wide.
Protection!
To protect your equipment investment, Openchannelflow offers single and multi-piece fiberglass equipment shelters in sizes from 4' to 20' wide.
Shelters
Security! For smaller equipment, Openchannelflow offers a variety of fiberglass equipment enclosures for automatic samplers, chemical metering, valve protection, and above grade flumes.
Security!
For smaller equipment, Openchannelflow offers a variety of fiberglass equipment enclosures for automatic samplers, chemical metering, valve protection, and above grade flumes.
Enclosures
Accurate & Cost Effective! Openchannelflow thin-plate weirs (fixed and portable), weir boxes, and weir channels are sized to meet the strict requirements of ISO/DIS 1438 for accurate flow measurement.
Accurate & Cost Effective!
Openchannelflow thin-plate weirs (fixed and portable), weir boxes, and weir channels are sized to meet the strict requirements of ISO/DIS 1438 for accurate flow measurement.
Weirs
Endless Customization! Custom free-standing level / head gauges from Openchannelflow are perfect for quick visual indication of level / flow rates for stream gauging, lake / reservoir levels, or flume / weir applications.
Endless Customization!
Custom free-standing level / head gauges from Openchannelflow are perfect for quick visual indication of level / flow rates for stream gauging, lake / reservoir levels, or flume / weir applications.
Gauges

Openchannelflow provides solutions to measure, conditon, and control the flow of water in open channels...

...as well as protection for the equipment used to do so.

Openchannelflow manufactures a full range of:  Flumes, Fiberglass Manholes, Weirs, Gauges, Shelters, and Equipment Enclosures - in a variety of materials including:  aluminum, fiberglass, galvanized / stainless steel.

Get the support you need

At Openchannelflow we want to support you in the way that best fits your needs. On this site you will find extensive information on our Flumes, Shelters, Manholes, Enclosures, Weirs, and Gauges.

To help direct you to the right resource, we have broken out our support information into Downloads and FAQ centers.