A Hubert drum screen is a filtration system used in a fresh or sea water intake. This machine is self-cleaning fully automatic screen suitable to filter very large flow rates at a relatively fine filtration degree.
The drum is placed in a concrete pit or tanks and rotates on a stationary hollow shaft. The water to be filtered flows through the drum panels and the dirt particles remain trapped in the mesh.
Regularly occurring flow rates are between 40.000 and 120.000 m3/h per screen, depending on customer requirements and the local situation at the intake. Woven mesh with a diameter of about 2 to 10 mm is used as filter medium.
The drum screens can be supplied with a fish recovery gutter or channel that allows trapped fish to be removed in a gentle and effective way. These recovery systems are tailor-made for each project.