Abstract: A water supply device for supplying water for consumption includes a hot-water tank and a pipeline for conveying water with a temperature below 65° C. to a draw-off point. The water supply device further includes an inlet valve configured for allowing or blocking inflow of fresh water into the hot-water tank feed, a return pipe that connects the line for conveying water with a temperature below 65° C. to the hot-water tank for returning water, and a return pipe valve fitted in the return pipe to allow or to block flow of water through the return pipe, in such a way that by blocking the inlet valve and opening the return pipe valve, a circulation circuit is formed for the at least partial sterilization of the line for conveying water with a temperature below 65° C.

Abstract: A nozzle lifting assembly for an additive manufacturing system includes a base member and a lift member relatively movable with respect thereto, a first nozzle body arranged for being lifted by the lift member and a second nozzle body disposed on the base member. A wedge member is movably arranged relative to the base member and in wedging engagement with the lift member between a first and second wedge position, wherein the first and second wedge position correspond to a lowered position and a lifted position of the first nozzle body with respect to the second nozzle body, respectively.

Abstract: A nozzle lifting assembly for an additive manufacturing system includes a base member and a lift member relatively movable with respect thereto, a first nozzle body arranged for being lifted by the lift member and a second nozzle body disposed on the base member. A wedge member is movably arranged relative to the base member and in wedging engagement with the lift member between a first and second wedge position, wherein the first and second wedge position correspond to a lowered position and a lifted position of the first nozzle body with respect to the second nozzle body, respectively.