Systems available in SS 316L and polypropylene(PP)
Systems suitable for water levels between 1.0m and 2.1m
Modular design to suit channel widths between 0.3m and 1.6m or custom
Asymmetric design ensures even UV exposure when frames are combined
Wall mounting system for reservoir inlet or outlet
System with three flow guide plates to ensure even UV exposure
Large system with optional perforated plate for flow distribution
Custom mounting systems can be made to fit existing channels

Open Channel UV systems for municipal Sewage Treatment and wastewater treatment plants

ULTRAAQUA UV open channel UV system series offers environmentally friendly and chemical-free disinfection of wastewater for municipalities and industries.

Open channel systems are available for vertical, inclined and wall-mounted installations – making it a perfect solution for retrofit installation into existing chlorine contact tanks

UV Lamp banks are based on modular design and can be expanded to treat almost any flow. The SS/PP channel series is versatile and will fit into a variety of channel depths and widths.

  • Modular design and control system
  • UV systems can be controlled remotely via ULTRAAQUA UV central PLC system
  • ULTRAAQUA unique UV system design allows up to 30 cm/12 inch variation in water level
  • Regular maintenance tasks can be performed while the UV system is operational
  • The design technology for Open Channel UV systems with hygienic isolated top compartment allows for easy access to all UV lamps
  • Polypropylene or electropolished stainless steel AISI 316l construction
  • Simple installation, operation and maintenance
  • Vertically installed lamps, accessible during operation and no submerged electrical components
  • No tools needed for maintenance
  • Continuous lamp performance / lifetime monitoring
  • Optional water level control and UVT sensor
  • Available with standard or advanced controls
  • High level of customization – to fit in any channel dimenstion
  • Automatic wiper system
  • CFD optimized hydraulics



CFD Optimized design

ULTRAAQUA open channel UV systems have been CFD optimized thoroughly in order to make sure that the lamp array is optimum for sewage water and wastewater disinfection. With particle tracking and conservative fouling factor, the disinfection efficiency is guaranteed



UV transmittance is the fraction of electromagnetic radiation at 254nm that passes through a water sample of typically 10mm length (UVT10 or T10). In relation to UV system sizing this parameter is as decisive as water flow rate. In general, the higher water quality, the higher UVT. However, water that looks very clear can have low UVT if it contains certain dissolved substances such as iron and manganese. ULTRAAQUA will free of cost measure UVT or we can estimate it based on our vast experiences.

For low UVT applications (UVT < 40%), please consider LUVT Series.


Vertical or inclined installation

ULTRAAQUA’s 20 years of experience with UV systems for open channel installations has shown that vertical or inclined installation is clearly advantageous compared to horizontally/fully submerged UV lamps. All electrical connections are placed in dry and clean top compartment. This will ensure stable operation throughout the lifetime of the system. It is also important to note that both the UV lamps and the UV sensors can be serviced in a very quick, safe and hygienic matter without elevating the lamp banks.


Open channel UV systems for retrofit installations

ULTRAAQUA UV can produce optimized custom made UV systems based on your specific requirements.  Size can be customized to fit into a variety of channel depths and widths. Open channel UV systems are available for vertical, inclined and wall-mounted installations – making it a perfect solution for retrofit installation into existing chlorine contact tanks




ULTRAAQUA products are available worldwide. Please use the contact form to the right and we will refer you to the nearest distributor.

Call us
+45 7023 1020


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RAS facility, Switzerland

3 x MR50-350SS Channel units are installed in Switzerland in a large RAS to insure biosecurity for multiple species of fish.

Moscow Metro, Russia

2 x MR4-440SS channel series. 1500W UV systems for water disinfection.

Hirtshals, Denmark

2000 m3/h seawater disinfection. 440W polypropylene channel series

Gobi Desert, China

6 250 m3/h 440 SS series channel systems for 1000 ton salmon production plant (under construction).