Duperon FlexRake - Model FRO - Trash Racks
From Trash Racks
Automated raking solution for existing trash racks and bar screens. The FlexRake Rake Only (FRO) is an automated raking mechanism designed to be mounted onto existing screens (on the deck or on the screen itself depending on the site). This retrofit option is an economical and effective way to utilize existing screens for bar openings ½ inch to 4 inches (or greater).
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Description
The FlexRake FRO is a heavy-duty raking mechanism engineered for open channel applications where debris size and velocity may be unpredictable. It can handle general refuse, aquatic vegetation, tree limbs, tree branches and shrubs to lumber, tires, oil drums, and automobile frames. Its reliability and unmatched adaptability translate into everyday pump protection and reliable performance in events of significant magnitude.
Duperon has more than 35 years of delivering solutions with simple, yet robust equipment that maximizes water flow and is resilient enough to weather any storm.
St. Charles Parish, Louisiana is situated 25 miles outside of New Orleans. Located in a floodplain, most of the Parish is at or below sea level. To mitigate the risk of flooding, the Parish uses a series of drainage canals and pumping stations that are imperative for flood control and to move stormwater. This levee system protects against the loss of life and property and is critical to maintain operation during rainfall and hurricane events.
Many of the pump stations had manual trash racks that protected the pumps from destructive debris. Overtime the debris conditions changed and it was determined automated screening was required.
The FlexRake® FRO is a front-clean, front-return, mechanical raking system that mounts onto an existing bar rack. It features the industry leading FlexLink™ multifunctional link system, which eliminates underwater sprockets, bearings or tracks that create a fixed path of travel and are subject to fouling and/or jamming. The groundbreaking flex/pivot action of the Duperon FlexRake is unhampered by large debris.
The FlexRake FRO is designed to rake existing bar racks with openings of ½ inch to 4 inches wide. UHMW-PE scrapers are custom-fit to clean the existing bar rack.
To save costs, St. Charles Parish purchased FlexRake® Rake Only devices that were custom fit to their existing trash racks. In true form to Duperon’s design standard for simplicity, thirteen units were installed across three sites in only three days… using their own crew.
These FlexRakes have proven a dependable, cost-effective solution. It has withstood seasonal weed blooms, storms and protected the community from hurricane floodwaters. Its reliability and unmatched adaptability translate into everyday pump protection and reliable performance in events of significant magnitude.
Installs on existing manual bar racks or can replace existing technology for cost-effective and automated debris removal
CustomizableTo fit your existing bar rack and the unique needs of your site
Flexible DesignAdapts to a range of unpredictable flow and debris conditions without operator intervention
No in-channel maintenanceWith no lower sprocket, the FlexRake FRO allows maintenance to be performed from the deck, eliminating diving or confined space entry for improved worker safety
Reliable operationDesigned for 24/7 operation or can stand idle for long periods, yet reliably respond when needed during a storm or debris event
Low cost of ownershipFractional horsepower, few parts, minimal maintenance; the FlexRake FRO is easy to install, own, and operate by your own crew
Uninterrupted water flowContinuously cleans the entire intake with multiple scrapers to avoid blinding and headloss to ensure water keeps moving
Wildlife-friendlyThe FlexRake® HD received Manatee Safe designation from the US Army Corps of Engineers (USACE), US Fish & Wildlife Services (FWS) and Florida Fish and Wildlife Conservation Commission (FWC)
Applications
- Open channels
- Water intakes
- Coarse screens
- Stormwater irrigation
- Canals
- Pump stations
- Flood control
- Hydroelectric
- Drainage canals
- Combined sewer overflows
- Wastewater applications
Key Features
- A customized raking solution for your existing bar rack to preserve materials and costs
- Industry-leading FlexLink™ eliminates lower sprockets, submerged bearings and tracks
- FlexLink multifunctional link system has ultimate strength of 60,000 lbs with unmatched durability
- Jam Evasion™ technology lifts and pivots around debris to remove from channel without shutdown or jamming
- Swinging drivehead allows the entire raking system to move outward to discharge large debris
- Full-Screen Cleaning™ reduces the risk of blinding at the intake by cleaning all of the screen all of the time
- Fractional horsepower motors used for energy efficiency
- Everything is serviceable from the deck to eliminate in-channel maintenance and confined space entries
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