Flowing media have the property of sticking to flat or convex surfaces according to the Coanda effect. Example of flowing water on a spoon: If you hold a spoon in a stream of water, the water follows its curved surface and leaves it in a different direction than it came. You can feel the associated force that pulls the spoon into the jet of water. Our Coanda screens work on the same principle.

The Coanda intake screen removes rubbish, stones, leaves and aquatic life forms from the flow prior to entering the supply pipe (penstock). This is often a requirement of environmental protection agencies. A poor intake is normally the cause of most hydro turbine system problems. Poor intakes may allow small stones to enter the penstock that can cause serious damage to the Pelton rotor or cause the jets to suddenly block resulting in severe water hammer that can rupture pipe and fittings.

Our Coanda intake screen is not limited to small hydro schemes, it can also be used for domestic, farm, village and small town water supplies.

With the high filtration performance and easy usage, Coanda Intake Screen provide clean water for a wide range of application where fluid-solid separation or clean water is required.

The most popular and effective usage of the Coanda Screen is an application in hydroelectric plants. Coanda Water Intake supplies clean water for the hydroelectric plants by preventing harmful materials and protecting turbine blades.