Systems available in stainless steel(SS) and polypropylene(PP)
Systems suitable for water levels between 1.0m and 2.1m
Modular design to suit channel widths between 0.6m and 1.6m
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

Channel and Reservoir Series

ULTRAAQUA’s SS C and PP C Series offers a very low head loss solution for open channel systems. The series is commonly used for municipal wastewater treatment facilities and aquaculture systems. Lamp banks are based on modular design and can be expanded to treat any flow. The SS/PP channel series is versatile and will fit into a variety of channel depths and widths.

  • Modular frame and control system
  • 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 UV sensor
  • Available with standard or advanced controls
  • High level of customization – to fit in any channel dimenstion
  • Automatic wiper system




Third party validated UV-system

ULTRAAQUA 220SSV Validated series according to Önorm M 5871-1.

Please note that 220, 350 and 440 series are based on the same design principles and quality components. Key components such as UV-lamps, quartz sleeves, lamp drivers, sensors etc. are produced after the exact same very high technical standards.



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 < 70%), 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.


Custom made systems

ULTRAAQUA 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.




220 SS/PP C SeriesMR3-220SS/PP CMR4-220SS/PP CMR6-220SS/PP CMR8-220SS/PP CMR10-220SS/PP CMR12-220SS/PP C
Max. flow125 m³/h175 m³/h260 m³/h380 m³/h480 m³/h590 m³/h
Lamp power0.7 kW1.0 kW1.4 kW1.9 kW2.4 kW2.9 kW


350 SS/PP C SeriesMR3-350SS/PP CMR4-350SS/PP CMR6-350SS/PP CMR8-350SS/PP CMR10-350SS/PP CMR12-350SS/PP C
Max. flow230 m³/h320 m³/h520 m³/h720 m³/h930 m³/h1150 m³/h
Lamp power1.1 kW1.5 kW2.3 kW3.0 kW3.8 kW4.5 kW




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


Response within 24 hours


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).