Reliability in the worst storms and toughest conditions…

Ideal for open channel, CSO, pump stations, and water intakes where debris size, velocity, and flow are unpredictable


Duperon® FlexRake® FRHD: Heavy Duty Coarse Screen 

  • Assures Continued Flow - Even Through Heavy Storms - without Interruption or Shutdown

  • No Lower Sprockets, Bearings, Tracks or Guides that Require Underwater Lubrication

  • Continually Cleans Across Entire Intake

    Duperon® FlexRake® FRHD: Heavy Duty Coarse Screen

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

    Utilizes A36 steel with Duperon® standard coating or hot-dipped galvanized; also available in 304 and 316 stainless steel

    Available with 1 inch - 4 inch openings

    Duperon® FlexRake® FRHD Features & Benefits

    Continuous Cleaning

    Continually cleans across the entire intake with multiple scrapers (no cycle times, no clogging).

    Low Maintenance

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

    Long-Life Durability

    Original FlexLinkTM multifunctional link system - with 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.

    Energy Efficient

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

    Duperon® FlexRake® FRHD General Specifications

    Typical Applications:

    • Open channels, water intakes, coarse screens, irrigation canals, stormwater pump stations, flood control, hydroelectric

    Unit Width:

    • 2 feet to 12 feet

    Unit Length:

    • 10 feet to 100 feet

    Angle of Installation:

    • Standard: 30 degrees from vertical 
    • Range from vertical to 45 degrees, dependent upon site conditions.

    Standard Materials of Construction:

    • A36 Steel, with Duperon® Standard Coating or hot-dipped galvanized
    • Also Available: 304 and 316 Stainless Steel

    Bar Opening:

    • 2 inches – 4 inches

    Scraper Configuration:

    • Serrated scraper

    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.

    Other Course Screening Options

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