Anordning för växelvis tillförsel av olika medier till ett antal för medierna gemensamma utlopp

摘要

The device is for the alternating feed of different media to a number of common outlets and is used for humidifying and cleaning of rollers in an offset rotary printing press. It feeds alternatingly damping fluid and washing fluid to a number of flow-regulating valves parallel with the rollers whose outlets issue in nozzles which in a finely distributed form spray either damping fluid or washing fluid against the rollers. The device incorporates a fine distribution conduit (11) with two ends (12, 13) with a number of outlets (14) placed along the conduit and a valve member (15) movable along the distribution conduit (11). The valve member position depends on the pressure difference between the media fed to the ends.