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 The Heliscreen® is a compact, powered screening system for the removal of floatables, gross solids and other sewer debris greater than 6mm in two directions. An important advantage of the Heliscreen® is its ability to operate under submerged conditions in a totally flooded chamber when continuation or spill flow pipes are surcharged.
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Heliscreen® is ideal for installation at new or existing combined sewer overflow facilities where low maintenance is required but site constraints, hydraulic levels and/or chamber dimensions preclude the use of a non-powered, self-cleansing screen.
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All screenings are retained on the sanitary side of the overflow weir
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Operates under surcharged conditions
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Low headloss
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Compact design
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Ability to handle high concentrations of screenings
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Minimal maintenance due to efficient and robust design
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Easily retrofitted into existing CSO chambers
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Screen surface cleaned by slowly rotating helical brushes
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Ability to operate under surcharged conditions
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100% screening to 6mm in two directions
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Typical design loading rate: 440 gpm/ft2 (300l/sm2)
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