Liquid e.g. water, spraying device for farming purpose, has check valve arranged in liquid feed line that is guided from liquid tank in direction of spray nozzle, where check valve is designed such that no liquid flows back into liquid tank

摘要

The device has a check valve (5) arranged in a liquid feed line (4) that is guided from a liquid tank (3) in a direction of a spray nozzle (2). The check valve is designed such that no liquid flows back into the liquid tank. A mixer unit (10) is arranged in the liquid feed line after a conveying position (11) of an active agent unit. A return line (15) comes from the supply nozzle, and is discharged between the check valve and the mixer unit.