Abstract: An ultraviolet water disinfection reactor installed in an existing water pipeline including a body positioned between a pair of ends formed by dividing the pipeline, a plurality of Quartz sleeves extending through the body, a plurality of ultraviolet lamps extending through the plurality of sleeves, respectively, and a plurality of ballasts electrically communicating with the plurality of lamps, respectively, so as to allow each of the plurality of lamps to have a separate power unit. The plurality of sleeves extend through the body transversely to the axial direction of flow so as to be of varying lengths relative to each other. The plurality of sleeves lie in a plane that is perpendicular to the axial direction of flow so as to provide minimal flow restriction and pressure drop and a relatively uniform irradiance field of exposure by virtue of no path passing far from one of the plurality of lamps.

Abstract: An ultraviolet water purifier that includes a chamber tube, a pair of chamber heads, a pair of replaceable primary chamber clamps, a quartz sleeve, and a germicidal ultraviolet lamp. The chamber tube is length adjustable. The pair of chamber heads are rotatably attached to the ends of the chamber tube, respectively, so as to allow the pair of chamber heads to be rotated relative to the chamber tube as desired and provide independently configurable inlet and outlet orientations. The pair of replaceable primary chamber clamps rotatably and interchangeably attach the pair of chamber heads to the ends of the chamber tube, respectively, so as to allow the pair of chamber heads to be readily rotated relative to the chamber tube, interchanged as desired, and allow for more complete disassembly of the purifier. The quartz sleeve extends axially through the chamber tube and the pair of chamber heads. The germicidal ultraviolet lamp extends axially through the quartz sleeve.