Screening
Externally Fed Rotary Drum Screen
An externally fed rotary drum screen that introduces wastewater to the outside surface of the rotating screen.
Provide peak flow, target screen opening and a description of the solids.
Outside-In Screening
How It Works
A distribution device spreads wastewater over the outside of the rotating drum. Liquid passes inward through the openings, while the drum carries retained solids to the discharge device. Timed backwashing helps clear the openings.
Configuration and Applications
The RDS series has wedge-wire or perforated screen options. The catalogue lists a common opening range of 0.25–6 mm and SUS304 construction, with SUS316L listed as an option.
What to Send for Sizing
Specify peak flow, screen opening, type and amount of solids, and available backwash water. Confirm inlet and outlet levels and clearance for screen maintenance.