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Duperon - Low Flow Screening and Solids Handling System
Complete screening and solids handling system. A pre-engineered, fully automated system for wastewater applications with average flows of 1 MGD or less; and up to 4 MGD. The proven FlexRake technology is paired with a perfectly-sized washer compactor to seamlessly remove, clean, compact and discharge screenings 5 ft. (centerline) in any direction.
Cost-effective Screening And Compacting System For Low Flow Applications
Many small and rural communities rely on decentralized treatment systems or operate wastewater facilities that have average flows of 1 MGD or less. This sized plant serves most of the US population. According to the EPA, these communities also face financial resource challenges, workforce issues and lack cost-effective treatment.
The Low Flow System solves these challenges by providing a simple, affordable, and reliable automated bar screen and solids handling packaged system for preliminary treatment. It incorporates proven FlexRake® Adaptive Technology™ and a washer compactor specifically designed for this application and price point, maximizing value and performance.
Simple and cost-effective mechanical bar screen and washer compactor for low flow sites
Superior washing and compacting performance80% volume reduction, 60% weight reduction to save landfill disposal costs
Adaptable designAdjusts to a range of unpredictable flow and debris conditions using proven FlexRake® Adaptive
Safety factorDesigned to handle 4 MGD peaking events to provide peace of mind and performance during wet weather
Low cost of ownershipWith few parts, simple design and minimal maintenance, the FlexRake Low Flow System is easy to install, own, and operate by your crew
Designed for dutyPre-engineered and sized to perform in channels, flows, and conditions for small communities.
Compact systemLow profile, integrated system with footprint half the size of in-channel auger style equipment
Built-in flexibilityFlexible pre-engineered design with options to fit your site needs
More than 80% of treatment plants in the United States are rated for 1 MGD or less. Small community wastewater systems are often resource and budget constrained but their headworks still plays an important role in the treatment process.
The Low Flow System was invented to offer a simple raking device that solves the challenges of
- Static bar screens that require manual cleaning
- High-maintenance cylindrical basket screens
- Unsatisfactory cleaning and compaction of screenings
Small communities no longer have to compromise between manual cleaning, complex systems that require frequent maintenance or subpar washing and compacting. The Low Flow System provides another option for simple, affordable, and reliable automated bar screening and solids handling for low flow sites. It incorporates proven FlexRake® Adaptive Technology™ and a washer compactor specifically designed for this application and price point, maximizing value and performance.
The Low Flow System is a pre-engineered system that combines a Low Flow and a single auger washer compactor for sites with average flows under 1 MGD and peak up to 4 MGD. With ¾ hp sites can screen, wash and compact.
The Low Flow is a front-clean, front-return mechanical bar screen. It features the SmartLink™ 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. It is offered in a range of channel widths, depths and bar openings to meet the needs of small communities.
The pre-engineered Low Flow Washer Compactor is a perfect fit in size and capacity to receive screenings from the FlexRake Low Flow bar screen. It consists of a single auger with a floating bearing design to self-center and accommodate irregular debris. A self-cleaning strainer eliminates maintenance-intensive brushes. The washing chamber rinses screenings and returns fecal matter to the channel via an anti-clogging drain. The weight and back pressure from the debris in the chute generate compaction – there is no fixed sized compaction. The Low Flow Washer Compactor is integrated to run in coordination with the Low Flow bar screen (non-batch processing). Please see accessories tab for information on optional baggers and freeze protection.
- Municipal wastew
- Pre-engineered system that has flexibility: discharge chute, drain connection and motor location options to fit your site
- FlexRake Low Flow:
- Includes a built-in safety factor to handle flows up to 4 MGD peak
- Standard features include: easy controls, spray wash for screenings, all stainless steel construction
- Tear-drop shaped bars provide highest efficiency in the industry; 25%-50% more efficient (depending on the bar opening)
- Thru-Bar™ scrapers clean all three sides of the bar and cross member
- Proven Duperon® FlexRake® technology: no lower bearings, sprockets, jam points or confined space entries
- UHMW Low Flow SmartLink™ is completely corrosion-resistant, provides long life and is self-lubricating material
- UHMW Low Flow SmartLink™ allows for “dry” operation which is ideal for low flow sites with varying water levels since there is no minimum depth required
- Integral enclosure provides easy installation, access and viewing
- Low Flow Washer Compactor:
- Customizable speed and wash settings to optimize cleaning based on site conditions
- Over-sized hopper capacity reduces overflow potential
- Anti-clogging drain connection
- Discharge 5 ft. CL in any direction, even upstream
- Floating bearing design self-centers and accommodates irregular debris without binding
- System engineered for minimum footprint