Noardling Hubert - Vertical Drum Screen

Design and Construction

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. Hubert vertical drum screens are available for different flow patterns.
As the drum rotates the row of screen panels pass under or above a set of high pressure water jets at the top of the drum. The dirt particles are washed from the screen and discharged through a debris collector system.

The Hubert vertical (rotary) drum screens are designed with A-shaped spokes, resulting in high rigidity and resistance to deformation. This produces an accurate fit against pit walls, enabling filtration of particles down to 2 mm. All Hubert drum screens are fitted with maintenance free slide (sea)water lubricated bearings. The same applies to the ring gear

Fish Friendly - Fish Recovery System
Huberts 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.

Standard Dimensions and Materials

• Drum width: up to 5 m, drum diameter up to 20 m
• Mesh opening: 2/ 10 mm
• Materials: (coated) carbon steel, stainless steel, (super) Duplex

• Large flow capacities
• Light stable and rigid structure (due to our A-spoke construction)
• Reliable & Maintenance free 
• Long lifetime (30 years or more) 
• Resistant to abrasive water
• No need for a debris pump (debris removed at / or above deck lev.)
• Savings on spare parts 
• (Sea)water lubricated bearing 
• Spray water cleaning
• Fish removal