Unique Corrugated Design Provides Rugged Strength
The unique corrugated design of the Duperon® Perforated Plate* static screen provides rugged strength where it's most necessary. In addition, the Hydropression cleaning cycle has proven to be effective on the most stubborn forms of contaminants, including: hair, grease, plastics, paper and small particulate matter.

Driven by Duperon FlexRake Technology
The debris skimmers and Effector plate travel in a cycle driven by Duperon® FlexRake® technology so there are no submerged bearings, bushings or sprockets - ensuring long-term operation, even in difficult environments. Proven in more than 600 applications, the use of FlexRake® technology brings simplicity and reliability to perforated plate ultra screening.
Seals are Static so Leaks are Not Generated
Typically, perforated plate screens are moving continually, cycling screen segments from active screening to, and through, cleaning operations. Naturally, this need for continuous movement to keep screens "open" causes wear on seals and increases the potential for leaks. Duperon® Perforated Plate screens do not employ moving screen segments - the plate is static and the seals are static, so leaks are not generated.
Innovative Debris Skimmers
The debris skimmers guide released material to the surface for removal without touching the screening area. The debris skimmers follow valley plates in the center of each vertex across the screen panel. This design avoids the problems associated with scraping methods, such as extrusion of debris into plate openings. With the Duperon® Perforated Plate, the cleaning Hydropression flow congregates the contaminates into the individual vertexes of the screen, supporting the reliable removal of the released materials.
The Power of Hydropression Harnessed in the Duperon R&D Lab
The Hydropression Effect was born from study of the hydromechanical phenomenon known as the thin plate theory, and the investigation of its possible application to preliminary liquids/solids separation challenges.

Research conducted in the Duperon® R&D lab and in subsequent field tests in wastewater applications proved that the Hydropression Effect established counter-positioned negative hydraulic pressure zones and positive hydraulic pressure zones. It is these zones that generate the powerful reversed and upward flow sufficient to provide continuous, effective cleaning.