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Johnson Screens Flat Panel Fish Diversion Screens

Strong and durable yet smooth and safe for fish; Johnson Screens® flat panels are designed for applications where fish protection is essential.

Unique Selling Point

  • Proven design
  • No turbulence
  • No high velocity zones
  • Highly efficient
  • Strong, durable construction
  • Guaranteed fit and efficient field assembly
  • Protects fish and fish eggs
  • Lowest and most even through-slot velocity (under 0.5fps)
  • EPA 316b und NMFS-compliant


Johnson Screens® fish diversion screens are used in dam and river systems to protect fish from hydroelectric turbines and pumps/swimming into pump stations. Our flat screens have a low-suction velocity and have been specifically designed to protect fish and other aquatic life. 
The proven design with a high open area of the screens, created with welded Vee-Wire allows natural water flow with no turbulence, no high velocity zones and no "dead" areas. Other screen materials such as woven mesh and looped wire cannot meet the flow efficiency of welded Vee-Wire fish panels. Strong, durable construction, an all-welded, continuous slot, stainless steel or Z-Alloy metal construction ensures that even the largest intake projects can be developed with confidence.
Bilfinger Water Technologies can also design and build fish screen accessories such as slide rails, blank plates, frames, air backwash systems and supports grids for a guaranteed fit and efficient field assembly. Regulatory Compliance Vee-Wire Screens have been identified as best available technology by the EPA and the NMFS. 
The non-plugging high open area design meets the most demanding flow requirements while the smooth flat surface provides a safe barrier for fish and fish egg protection. The design typically maintains a slot velocity of under 0.5 fps. This is critical for creating a non-fish impinging environment and complying with local, state and federal fish screening regulations, our fish diversion screens are recommended by leading environmental authorities as one of the best options to protect marine life. 
Our team can design your system at low-inflow velocities in relation to the ambient flow past the screen. This minimises impingement and entrainment of fish and debris.

Locations and Contact


Aqseptence Group Japan Limited, Yokohama

Sales Location
Daiwa Jisho Bldg. 74-1,
Yamashita-Cho Naka-Ku, Yokohama
231-0023 Kanagawa

Tel: +81 45 661 3575

Fax: +81 45 661 1921



Aqseptence Group (India) Private Limited, Ahmedabad

Sales and Manufacturing Location
E-540, GIDC, Sanand-II Industrial Estate,
Village: Bol, Tak: Sanand,
Gujarat 382170, Ahmedabad

Tel: +91 2717 618000



Aqseptence Group Pty Ltd., Brisbane

Sales and Manufacturing Location
88 Brickyard Road,
Geebung 4034 QLD
PO Box 85, Virginia DC,
QLD 4014

Tel: +61 7 3867 5555

Fax: +61 7 3867 5566



Aqseptence Group SAS, Availles-en-Chatellerault

Sales and Manufacturing Location
Zone Industrielle
86530 Availles-en-Châtellerault

Tel: +33 5 4902 1600

Fax: +33 5 4902 1616



Aqseptence Group GmbH, Karlsruhe

Sales and Manufacturing Location
Hardeckstrasse 3
76185 Karlsruhe

Tel: +49 721 5001 0

Fax: +49 721 5001 213


North America

Aqseptence Group, Inc., New Brighton, MN

Sales and Manufacturing Location
1950 Old Hwy 8 NW,
New Brighton, MN 55112

Tel: +1 651 636 3900

Fax: +1 651 638 3171


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