Over 1,500 installations....

Mechanically simple front-clean, front-return bar screen technology using multifunctional FlexLinkTM system


Duperon® FlexRake® FPFS: Fine Screening

  • No Lower Sprocket, Bearings or Tracks to Foul or Jam    

  • Adapts to a Wide Range of Debris Variations; Full-Range Flexibility

  • High-Capture Thru-BarTM UHMW-PE Scrapers

  • Tear-Shaped Bars are 20% to 50% More Efficient

    Duperon® FlexRake® FPFS: Fine Screening

    A front-clean, front-return, mechanically cleaned bar screen technology.

    Utilizes stainless-steel tear-shaped bars with 1/4 inch, 3/8 inch, or 1/2 inch openings. 

    Duperon® FlexRake® FPFS: Features & Benefits

    Low Maintenance

    With no lower sprocket, FlexRake® technology allows all maintenance to be done from the deck; no jam points underwater to require diving or confined space entry.

    Long-Life Durability

    Original FlexLinkTM multifunctional link system - with 4.5 lb. stainless steel cast links and an ultimate strength of 60,000 lbs. - provides unmatched durability. Many systems have been operating for more than 20 years.

    Full Range Adaptability - Unhampered by Large Debris

    Jam EvasionTM technology allows the FlexLinkTM multifunctional link system to lift and pivot around debris. This allows FlexRake® technology to adapt to a wide range of debris variations; from grit and grease to hard hats and sewer plugs. Positive location of the scrapers by the side frame assures continuous engagement.

    Energy Efficient

    The low horsepower requirements of the Sumitomo drive system ensure low-cost, energy-efficient debris removal.

    Efficient Hydrodynamics

    Depending upon approach velocities, tear-shaped bars are 20% to 50% more efficient.

    High Capture Rate

    Unique to the industry, Thru-BarTM scrapers clean 3 sides of the bar as well as cross members.

    Cleans to Channel Bottom

    Eliminates residual debris buildup at the bottom of the screen; allows full use of channel depth for flow.

    Five-Year Warranty

    Five-year warranty for wastewater applications - an industry first.

    Duperon® FlexRake® FPFS General Specifications

    Typical Applications:

    • Wastewater, combined sewer overflows, and prison applications. Also used in pulp/paper mills, raw water intakes, and other applications where debris is highly variable or difficult to capture.

    Unit Width:

    • 2 feet to 10 feet
    • Single Strand FlexRake® configuration available for channel widths of 18 inches to 24 inches.

    Unit Length:

    • 10 feet to 100 feet

    Angle of Installation:

    • 0 degrees to 45 degrees

    Standard Materials of Construction:

    • Standard: 304 Stainless Steel 
    • Available in: 316 Stainless Steel

    Bar Opening:

    • ¼ inch, 3/8 inch, and ½ inch

    Scraper Configuration:

    • 3:1 UHMW-PE staging scraper/stainless steel Thru-Bar™ teeth ratio. Scraper positioned every 21 inches.

    Standard Controls Options:

    • Packages range from simple start/stop to sophisticated automation. Motor overload protection provided. Contact Duperon® for further details and assistance in selecting the perfect package for your site.

    Operation Options:

    • Continuous/Manual 
    • Automatic with timer, float, SCADA, differential/high-level sensing options with I/O as needed

    Duperon® FlexRake® FPFS Videos


    Duperon® FlexRake®: How it Works 

    Duperon® FlexRake® in Wastewater

    Other Fine Screening Options

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