Catalogs >
Hydro International >
Heliscreen

Heliscreen
2Pages

Catalog excerpts

Water & Wastewater Heliscreen® Compact Powered CSO Screening System Maintains high screening efficiency under surcharged conditions. The Heliscreen® is a compact powered CSO screen with the ability to operate under surcharged conditions. With low headloss and a small footprint, the Heliscreen® is ideal for retrofit installations with hydraulic or physical site constraints. Applications • New CSO facilities. • CSO retrofit. • Storm screen for storm tank applications (before or after storm tank). • Sites constrained by hydraulic levels or chamber dimensions. • Facilities with low maintenance requirements. Advantages • • • • • • • • 100% of screenings are retained on the foul side of the overflow weir. 6 mm in two direction screening. Operates under surcharged conditions. Low headloss. Compact design. Handles high concentrations of screenings. Self-cleansing. Easy to install and maintain. How it Works Flows enter the chamber causing water levels to rise, initiating the rotation of the helical brush mechanism on the influent side of the screen, and begins to flow Drive Motor and Gearbox through the Heliscreen®’s semi-cylindrical Backplate Overflow Weir stainless steel perforated screen (red arrow). Screen The spinning helical brush scrubs solids Mounting Plate away from the screen and into the continuation flow while the effluent is discharged over the weir to the spillway (blue arrow). The screenings and continuation flow are carried on to the wastewater treatment plant for treatment (brown arrow). Overflow (screened effluent to spillway / watercourse As the water level continues to rise, spill flow and continuation flow pipes may become surcharged. Excess flows are bypassed Auger over the back plate overflow weir. The powered motor of the Heliscreen® is Zone Helical Brush Outlet for Continuation Flow 1 rated IP68 to ensure that, unlike most CSO screens, the device will continue to operate even in the event of surcharges. turning water around ...® Tel: 01353 645700 • Fax: 01353 645702 • www.hydro-international.biz

Open the catalog to page 1

Wa te r & Wast ewate r Heliscreen® Design Versatile and adaptable, the Heliscreen® is available in standard diameter sizes of 300 mm, 500 mm, 700 mm and 1000 mm. Configurations The versatility of the Heliscreen® allows for units to be installed in parallel or in series to accommodate any flow requirements. Sizing Data 300 mm Diameter Screen Length Plan Area Maximum Spill Flow 1.5 m 2.0 m 2.5 m 3.0 m 3.5 m 550 mm x 2500 mm 550 mm x 3000 mm 550 mm x 3500 mm 550 mm x 4000 mm 550 mm x 4500 mm 241 l/s 321 l/s 401 l/s 481 l/s 561 l/s 500 mm Diameter Screen Length Plan Area Maximum Spill Flow 1.5...

Open the catalog to page 2

Heliscreen 2Pages

Catalog excerpts

All Hydro International catalogs and technical brochures

Heliscreen
2Pages