Jet dosing valve

A dosing valve (1) for ejection of a liquid from a nozzle-outlet channel (9) of the dosing valve (1) for dosed and contactless application of a liquid onto a surface,

• wherein the dosing valve (1) has a main body (2), a valve-actuating element that is movable inside the main body (2) and a valve-closing element that is joined to the valve-actuating element or can be actuated thereby,
• wherein the valve-closing element can be moved inside a dosing chamber (6) between an open position lifted from a nozzle-sealing seat (8) and a closed position bearing on the nozzle-sealing seat (8), in order to achieve ejection of liquid from the nozzle-outlet channel (9) of the dosing valve (1) during the transition from its open position to the closed position, and
• wherein, for pneumatic activation of the dosing valve (1), a switching valve (10) is provided, with which a working space (11) of the dosing valve (1) may be selectively vented or pressurized with a pressurized fluid,
• wherein the switching valve (10) is configured as a directional valve with two switched positions and at least five ports (A, B, C, D, E;
• A′, B′, C′, D′, E′) and is interconnected in such a way that, in a first switched position of the switching valve (10), the working space (11) of the dosing valve (1) is simultaneously in communication either with at least two vented ports of the switching valve (10) or with at least two ports thereof pressurized with pressurized fluid, whereas, in a second switched position of the switching valve (10), the working space (11) of the dosing valve (1) is in communication either with a port of the switching valve (10) pressurized with pressurized fluid or with a vented port thereof.