Abstract: A nozzle apparatus for a spray machine, in particular an agricultural crop sprayer, having a control element adjustable using an external power source for controlling the flow of a spray liquid from a spray line through at least one channel of the nozzle apparatus. Once the control element has been moved to a control position, the position is maintained without further need for external power. The control element may be a ball valve or slide valve. The control element is movable to select nozzle connections and may also be used to vary flow through the selected nozzle connections.

Abstract: A spray bar assembly conduit having a connecting area easily attachable to a connecting piece. The connecting area includes a first outwardly directed bead which contacts the connecting piece and a second inwardly directed bead. The connecting piece is preferably equipped with a connecting plug or locking device for securing the connecting piece axially in the connecting area with the connecting plug engaging with the first bead.

Abstract: A tank for an agricultural field sprayer having a fill region a first closure. To avoid costly connections for lines at the tank and to reduce the cost of manufacture of the tank, the first closure can be rigidly connected to the tank and provided with an opening uncovered by a second closure. The connections of the first closure are arranged on a region configured as a connecting region, so that an access to the fill region is made possible by the second closure, even if the sprayer is in operation, particularly in a washing-in operation or in a circulating operation.