Water filter VTR2

Product overview
The VTR2 side-flow large-diameter rotating drum filter is a submerged rotating drum screen engineered for deep-water intake installations (sea, lake or river) at depths greater than 4–5 meters. It provides filtered water for industrial cooling, desalination pretreatment, potable water treatment and other production processes.

Category / Typology
CATEGORY: WATER INTAKE
TYPOLOGY: ROTATING DRUM SCREENS / SUBMERGED SIDE-FLOW FILTERS

Construction
The unit has a cylindrical supporting structure reinforced by radial steel ribs that sustain a wide free cylindrical filtering surface. Removable bolted filter panels (frame plus square-mesh screen) allow onsite replacement. The drum rotates on a central shaft supported by two side housings with lifetime-lubricated bearings. Drive is via a gearmotor with cylindrical gears and a pinion engaged with a rack. The cleaning system uses internal-to-external counter-current washing bars with high-pressure nozzles and discharges debris into an integral hopper. Sealing is achieved with gaskets between the rotating drum and a fixed steel channel-mounted frame. Overload protection is provided by standard dynamometric devices or optional electronic absorption limiters.

Main components

• Cylindrical support structure with radial steel stiffeners
• Bolted removable filter panels (frame + square-mesh screen)
• Central rotating shaft
• Two side supports with lifetime-lubricated bearings
• Gearmotor with cylindrical gears and pinion-rack transmission
• Two internal-to-external counter-current washing bars with high-pressure nozzles
• Hopper for screened material and wash water
• Sealing system with gaskets between drum and fixed channel part
• Overload protection: dynamometric devices or optional electronic absorption limiters

How it works
Flow enters the channel and passes across the external submerged drum surface, filtering from outside to inside and exiting axially at both ends. A closed downstream central channel forces flow to split and recombine after filtration. Debris retained on the drum exterior is removed by high-pressure wash water sprayed from inside to outside, which conveys screened material into the hopper.

Applications

• Sea, lake or river intakes at depths >4–5 m
• Cooling water supply for industrial processes
• Desalination pretreatment
• Potable water treatment pretreatment
• Other industrial process water intakes

Key benefits

• Designed for very high flow rates
• Constructed from stainless and recyclable materials
• Lifetime-lubricated bearings for continuous operation
• Low routine maintenance and simple mechanical design
• Fully automatic internal cleaning for sustained performance

Characteristics / technical specifications

• Model: VTR2
• Installation depth: suitable for channels deeper than 4–5 meters
• Filtering principle: side-flow submerged rotating drum (outside-to-inside)
• Filter media: removable panels with square-mesh screens
• Drive: gearmotor with cylindrical gears and pinion-rack transmission
• Cleaning: two internal-to-external counter-current washing bars with high-pressure nozzles
• Materials: stainless and recyclable materials
• Bearings: lifetime-lubricated, sized for continuous submerged operation
• Sealing: gasket system between rotating drum and fixed steel channel part
• Collection: hopper for screened material and wash water
• Overload protection: dynamometric devices; optional electronic absorption limiters
• Operation: fully automatic cleaning