Absolute Protection of Downstream Processes.

No dynamic seals to wear and ultimately fail.

Perforated Screen

    Duperon® FlexRake® Sentinel PFE

    (Perforated Fixed-Element)

    In 1995, Duperon Corporation created a new screening segment in the wastewater market with the introduction of the Duperon® FlexRake®. The designed simplicity of this multi-rake screen earned its own U.S. Patent for solutions to many operator challenges: no lower sprockets, bearings, or guide tracks for in-channel maintenance; no alignment issues; no jamming; and high operation and maintenance costs. Now, more than 20 years later, Duperon continues to hold that engineered simplicity as its standard of design.

    The Duperon® FlexRake® Sentinel PFE follows this tradition, with more than eight years of research, development, and in-field testing to assure the elimination of common fine-screening issues. The Sentinel offers patented solutions to assure efficient debris removal without the challenges common to perforated screens: no blinding; no stapling; and no carryover. Whether you're selecting a perforated screen for increased debris removal and efficiency or to protect downstream processes, the Duperon® FlexRake® Sentinel stands at the ready.

    Duperon® Perforated Technology Features & Benefits

    Absolute Protection:

    Uses a fixed-element screen, which provides absolute protection for downstream processes (even in the event of a mechanical failure).

    Active Hydropression™:

    Cleans each individual hole by managing the hydrostatic pressure, which allows efficient low-volume, low-pressure jet cleaning. Proven effective against clogging, stapling, and blinding.

    Corrugated Screen:

    The corrugated geometry of the screen increases screen strength and provides improved headloss dynamics compared to flat screens.

    Proven FlexLink™ Technology:

    Duperon® Perforated Plate screens employ proven FlexLink technology which has been used for decades on FlexRakes.

    Millennial™ Platform:

    The modular Millennial Platform supports future design developments and makes it possible to make changes to meet future process requirements.

    Duperon® Perforated Technology General Specifications

    Typical Applications:

    • Municipal and industrial wastewater, pre-process debris removal, membrane/IFAS protection, tertiary screening, industrial and food processing, pre-screening of process waters.


    Unit Width:

    • 2 feet to 5 feet
    • Other widths considered dependent on site constraints


    Unit Length:

    • 10 feet to 40 feet


    Angle of Installation:

    • 0 degrees (vertical)

    Standard Materials of Construction:

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


    Aperture Opening:

    • 2.0mm, 3.0mm, 6.0mm


    Debris Skimmer:

    • 304 SSTL, 316 SSTL and HDEP
    • Scraper positioned every 21 inches.


    Standard Controls Options:

    • Differential Control. Two-Speed Operation.  Auto shutdown at low levels.


    Duperon® Perforated Plate Technology Videos

    Duperon Perforated Plate

    You'll Like Working With Us

    © 2021 Duperon Corporation • All Rights Reserved
    We updated our Privacy Notice to ensure that it meets high transparency requirements for data privacy. By continuing to use our website, you agree to our use of cookies & communications. We may email you follow up related to the content you request access to on our website. You can review our updated privacy policy here.