Keeping loose vegetation out of a waterway is a common purpose for nearly every trashrack. As vegetation accumulates on a screen, it can cause blinding and lead to head loss. In applications with heavy vegetation, large floating mats can be particularly problematic. There are a lot of trashrack designs that have capabilities to address vegetation, but until recently there has never been a solution designed exclusively for such challenges.
Duperon developed the Harvest FlexRake specifically for applications where a constant flow of large vegetation presents a problem. Its unique design allows the scrapers to easily grip all manner of plant life while providing fine levels of screening with minimal blinding and head loss.
Source: WaterOnline.com