Since 1999, Donnellan Ultraviolet has continuously manufactured ultraviolet "UV" light disinfection equipment for water, wastewater, air and surfaces from our facilities in the NJ/NY area.

Since then, we have manufactured thousands of UV systems, been named to the Inc. 500 list, been acquired by Siemens Water Tech and then reacquired the UV product line from Siemens in 2011.

Over this period, we have sold our products through these brand names:

- Sunlight Systems (2000-2007)

- Siemens Water Technologies (2007-2011)

- Germicidal Systems (aka GERMSYS) house brand (2007-current)

- Siemens/Sunlight Models (2007-current)

- UVSYSCO (2020 current)

This branding allows a single identifiable source for installations requiring service and support.

Donnellan UV fabricates equipment to exacting standards based on the validated design catalog of Siemens Water Technologies. Systems include Horizontal, Vertical and Chambered UV wastewater product models and Teflon non-contact style tube reactor systems.

The following open channel systems' confidential biological validations are available for engineering review. Systems are identified based on Siemens validation naming conventions.

Siemens Barrier Sunlight V-48E-A300 Vertical

Siemens Barrier Sunlight V-40R-A150 - Vertical

Siemens Barrier Sunlight H-4XE-HO (2W-1B-1C) - Horizontal

We manufacture, distribute and service these and other products directly and through our authorized representative, UVSYSCO LLC NY. Please contact us at info@donnellanuv.com or info@uvsysco.com