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Water Intake Screens / Fish Diversion Screens

Hendrick Screen has 30 years of experience and technical expertise in the production of stainless steel screens.

We are a leading producer of passive water intake screens used for the withdrawal of large volumes of water from streams, lakes and reservoirs.

Hendrick fish diversion screens are used in dam and river systems throughout North America to protect fish from hydroelectric turbines. Our screens comply with NMFS standards and they are specified by the U.S. Department of Fish and Wildlife dept., Corp of Engineers and many State Departments of Fish and Wildlife Depts. for the protection of fish.

What Is Passive Screening?

Passive screening admits water through the intake point at a low, uniform velocity. Water passes through the intake screen slots while aquatic life and debris remain in the water source. The intake screens have no moving parts, therefore the term "passive screening". They can be placed away from shore for better water quality and distant from high concentrations of debris and marine life.

Advantages Of Passive Screening

Sitting a water intake screen at the proper depth, distance from the shoreline, and proper distance from each other is a crucial step in avoiding clogging debris. Proper screen design is another. A Hendrick water intake screen minimizes plugging problems with built-in maximum open area so water enters the system at a low velocity. Potentially plugging materials are not held against the screen surface. Smaller fouling material is kept out of the pumping system by using narrow, uniform slot openings with very close tolerances.

In high-debris environments, debris removal is achieved with the installation of a Hendrick airburst backwash system. Debris is carried up and away from the screen surface with a rapid release of air through pipes designed into the intake screen system.

Our water intake screens cause virtually no head loss while allowing fresh aerated water to pass through.

For more information on Water intake screens, Airburst systems, Biofouling solutions and Fish diversion screens, please visit our dedicated Water Intake Web Site: WaterIntake.com