Abstract: An apparatus for realizing a method for applying a flowable substance to a flat or curved product includes a nozzle unit including a nozzle valve having a nozzle end with an outlet opening. The nozzle end has at least one cooling zone. A mechanism supplies the at least one cooling zone with at least one of moist and temperature-moderated air so that condensation water forms as a result of the impact between the supplied moist and/or temperature-moderated air and the at least one cooling zone. A discharge device to which the nozzle end is operatively connected is adapted to discharge the condensation water or the condensation water loaded with dirt particles for ensuring a continuous, unobstructed flow of the flowable substance from the nozzle outlet opening.

Abstract: A method and apparatus for applying a flowable substance to a flat or curved product using a nozzle unit. The nozzle unit includes a nozzle valve that has a nozzle end with an outlet opening. Moist air and/or temperature-moderated air is admitted to a zone of the nozzle end to form condensation when the supplied moist and/or temperature-moderated air hits the nozzle end zone. Drying up or agglutinating of the flowable substance is thereby prevented at the outlet opening of the nozzle end to secure a continuous, unobstructed flow of the flowable substance from the outlet opening.

Abstract: A method and apparatus for applying a flowable substance to a flat or curved product using a nozzle unit. The nozzle unit includes a nozzle valve that has a nozzle end with an outlet opening Moist air and/or temperature-moderated air is admitted to a zone of the nozzle end to form condensation when the supplied moist and/or temperature-moderated air hits the nozzle end zone. Drying up or agglutinating of the flowable substance is thereby prevented at the outlet opening of the nozzle end to secure a continuous, unobstructed flow of the flowable substance from the outlet opening.