Wedeco Ag Water Technology

Xylem IP Holdings, LLC

Joachim Fischer

Dirk Riepe

Jan Boris Rudkowski

Rolf Sief

A UV lamp unit is provided and comprises a lamp in the form of a mercury low pressure amalgam lamp that is provided with at least one amalgam deposit. A cladding tube surrounds the lamp in such a way that an air gap is provided between the lamp and the cladding tube. An element is provided in one axial direction of the lamp, in the region of the at least one amalgam deposit, for influencing the temperature of the amalgam.

Amalgam-doped low mercury low-pressure UV irradiator

A UV lamp unit includes a lamp in the form of a mercury low pressure amalgam lamp that is provided with at least one amalgam deposit. A cladding tube surrounds the lamp in such a way that an air gap is provided between the lamp and the cladding tube. An element is provided in one axial direction of the lamp, in the region of the at least one amalgam deposit, for influencing the temperature of the amalgam.

Amalgam low pressure mercury UV lamp

The invention relates to a novel ballast device for pre-heating, starting and operating at least one UV emitter, constructed in the form of a gas discharge lamp with two heating coils lying opposite each other in relation to a gas discharge path, whereby four electrical connections are provided in total for each of such gas discharge paths, namely two for each heating coil. According to the invention, switching means are provided for a parallel switching of both of said connectors of a heating coil, dependent upon operating conditions. A capacitive loading of the ballast device is thus avoided by means of the otherwise open connector line for the heating coil and the current feed to the coils is evenly distributed.

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Hessisch Oldendorf, Germany

Joachim Fischer