8" Water Gate Valve, 12" Lift

Enjoy the agricultural and environmental benefits of VARIABLE RATE DRAINAGE^® with Agri Drain's Water Gate. The 8" Water Gate is a fully automatic, float-operated head pressure valve that manages up to 8"-diameter subsurface drain tile. It maintains a one-foot increase in water elevation between the downstream and upstream sides of the valve. 

• Manage up to 8"-diameter subsurface drain tile.
• Infinitely variable.
• Completely buried to allow for convenient field operations.
• Installation using flexible couplers on the upstream and downstream sides is recommended.
• Valve is not pressure rated.
• Valve is intended for gravity flow: Low pressure and some seepage may occur.*
• Water Gate/Improved Drainage Water Management Flyer Courtesy of Agri Drain & USDA/ARS.

• Water Gate Valve, 12" Lift Spec Sheet

*To minimize seepage, we recommend installing 20' of non-perforated pipe on the upstream side of the Water Gate, or using an Anti-Seep Collar below the Water Gate.

U.S. Patent No. 7,942,606 B2
Canadian Patent No. 2,675,810