Reliability in the worst storms and toughest conditions…

Duperon^® FlexRake^® FRHD: Heavy Duty Coarse Screen

A front-clean, front-return, mechanically cleaned bar screen technology

Utilizes A36 steel with Duperon^® standard coating or hot-dipped galvanized; also available in 304 and 316 stainless steel

Available with 2 inch - 4 inch openings

Duperon^® FlexRake^® FRHD Features & Benefits

Continuous Cleaning

Continually cleans across the entire intake with multiple scrapers (no cycle times, no clogging).

Low Maintenance

With no lower sprocket, FlexRake^® technology allows all maintenance to be performed from the deck; no jam points underwater to require diving or confined space entry.

Long-Life Durability

Original FlexLink^TM multifunctional link system - with 5 lb. stainless steel cast links and an ultimate strength of 60,000 lbs. - provides unmatched durability. Many systems have been operating for more than 20 years.

Full Range Adaptability - Unhampered by Large Debris

Jam Evasion^TM technology allows the FlexLink^TM multifunctional link system to lift and pivot around debris. This allows FlexRake^® technology to adapt to a wide range of debris variations.

Energy Efficient

The low horsepower requirements of the Sumitomo drive system ensure low-cost, energy efficient debris removal.

Duperon^® FlexRake^® FRHD General Specifications

Typical Applications:

• Open channels, water intakes, coarse screens, irrigation canals, stormwater pump stations, flood control, hydroelectric

Unit Width:

• 2 feet to 12 feet

Unit Length:

• 10 feet to 100 feet

Angle of Installation:

• Standard: 30 degrees from vertical 
• Range from vertical to 45 degrees, dependent upon site conditions.

Standard Materials of Construction:

• A36 Steel, with Duperon® Standard Coating or hot-dipped galvanized
• Also Available: 304 and 316 Stainless Steel

Bar Opening:

• 2 inches – 4 inches

Scraper Configuration:

• Serrated scraper

Standard Controls Options:

• Packages range from simple start/stop to sophisticated automation. Motor overload protection provided. Contact Duperon® for further details and assistance in selecting the perfect package for your site.

Operation Options:

• Continuous/Manual 
• Automatic with timer, float, SCADA, differential/high-level sensing options with I/O as needed.