Depending on site and design conditions, wastewater treatment plants producing filtered effluent sometimes prefer a disinfection solution using closed-vessel or pressurized UV reactors.

The TrojanUVFit™ offers an effective and energy-efficient closed-vessel UV solution. This compact reactor is available in multiple configurations to treat a wide range of flow rates. The streamlined hydraulic profile of closed-vessel systems disinfect filtered effluent without breaking head in the treatment process.

These benefits along with UV’s ability to provide environmentally-friendly, chemical-free treatment for chlorine resistant microorganisms (such as Cryptosporidium and Giardia) make the TrojanUVFit closed-vessel solution an attractive option for wastewater disinfection.

Common Replacement Parts for the TrojanUVFit


  • # 794447-0RD, # 794447-0GN, # 794447-0YW 

Quarts Sleeves

  • # 793024

Lamp Drivers (Ballast)

  • # 917067
Request a Parts Quote

Shining a Light on Stormwater Video
Sherbourne Common is a stunning waterfront park in Toronto's East Bayfront community. It's the first park in Canada to integrate a UV facility for stormwater treatment into the actual design and architecture. This video shows where and how our TrojanUVFit was incorporated.

Regulatory-Endorsed Bioassay Validation
Performance data is generated from actual field testing over a wide range of flow rates and water quality (UV transmission).The bioassay testing conducted on the reactors offers peace of mind and improved public and environmental safety due to verified dose delivery – not theoretical calculations. For reuse applications in California, the California Department of Public Health (CDPH) has approved the 32AL50 model for Title 22 reuse applications and the remaining TrojanUVFit™ models are pending approvals. All validation testing was done in accordance with the NWRI/AWWARF UV Guidelines.
Compact Reactor for Installation Flexibility
The reactor's compact footprint simplifies installation and minimizes related capital costs. Lamps and sleeves are fully serviceable from the reactor end – allowing the system to be installed against walls, other equipment or piping. Multiple flange orientations are also available – increasing design flexibility.
Amalgam Lamps Require Less Energy
These energy efficient lamps only draw 250 Watts per lamp. They have been validated to provide 98% of the original UV output during entire lamp life – 20% less decline than competitive UV lamps.
Built for Reliable Performance and Easy Maintenance
Access to internal components (lamps, sleeves, cleaning system) can be done through the service entrance at one end. A safety switch automatically deactivates the reactor if the service entrance cap is removed - added protection for operators. To minimize O&M, the reactors have an automatic wiping system to maintain sleeve cleanliness and an intensity sensor continuously monitors UV output to ensure dose delivery.
System Characteristics
Number of Lamps 
  • 4 to 144 lamps per reactor
Lamp Type
  • High-efficiency, High-output, Low-Pressure Amalgam
Sleeve Wiping
  • Automatic Wiping System
    (Optional Off-line Chemical Cleaning)
  • Electronic, constant output (100% power) 
  • Electronic, variable output (60 to 100% power)
Reactor Chamber
Materials of Construction 
  • 316L Stainless Steel
Flange Size (ANSI/DIN)
  • 6 inches (150mm) to 20 inches (500mm)
Outlet Flange Orientation
  • 3, 6, 9, or 12 o’clock position
Power Distribution Center
Electrical Supply
  • Various options available
Available Materials of Construction
  • Mild Painted Steel
  • 304 Stainless Steel
Panel Rating 
  • NEMA 12
  • NEMA 3R
  • NEMA 4X 
System Control Center
  • Microprocessor 
  • PLC-based
Typical Outputs Provided 
  • Reactor status, common alarms and SCADA communication (others available)
  • Water Reuse with Ultraviolet Disinfection

    The advanced treatment and reuse of wastewater is becoming increasingly common as municipalities address high water demands and shrinking supplies. Australia, Spain, Italy, California and Florida, to name a few, must balance increasing population growth, dry climates and heavy irrigation/agricultural demands.


  • Chlorine Conversion to UV Disinfection

    Chlorine gas has traditionally been used for wastewater disinfection for many years. Sodium hypochlorite (liquid bleach) is an alternative to chlorine gas; however, it is more costly and has the same environmental concerns. UV disinfection can easily be retrofitted into an existing chlorine contact tank and has significant benefits compared to chlorine disinfection.


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