The fish ascent screw (FAS, mono-tube)

The economical alternative for fish ascent

With the fish ascent screw (FAS) Hydroconnect additionally offers a low cost solution for the creation of fish passage from downstream water to the upstream water.

After a fast, cost-effective installation the fish ascent screw (FAS) runs with no water loss (savings of the official FAH supply)..

The system includes the patented technologies for the low-maintenance belt capstan and the luring and guiding current and is driven by a motor drive (ca. 1-2 kW consumption).

Benefits of the fish ascent screw

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Injury-free fish ascent

Fish and other river life pass without injury and effortlessly from downstream water to the upstream water.

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Low Space

The thin hydropower screw requires a minimum amount of construction work, protects the riverbed and is integrated inconspicuously into the landscape.

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No water loss

Savings of the official FAH supply

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Suitable for fluctuating water levels– No debris jamming possible

After flooding not maintenance-intensive such as slot pass or pool pass

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Fast, cost-effective installation

because of simple and robust construction

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Low-maintenance & all heads doable

The patented belt capstan replaces grease-lubricated underwater mountings and allowes all heads.

The solution in use

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In several EU-countries our system is being offered by our resellers.

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