Abstract: A spraycoating device includes at least one coating liquid spray gun (2) which contains a measuring valve device (40) opening or closing a compressed gas measuring valve flow path (42) depending on the positions of a liquid feed valve (4). The measurement of the compressed gas flow allows automatically determining whether the liquid feed valve (4) is situated in a fully close or a fully open position or in an arbitrary intermediate position thereto.

Abstract: A valve needle (2), in particular for spraycoating apparatus and their spraycoating devices. The valve needle (2) has a shank (4) and a plunger (8) affixed thereon. The shank (4) is made of another material than is the plunger (8). A preferred material for the shank (4) is an industrial ceramic.

Abstract: A spray-coating system includes a spraying implement (2) affixable to a support (4) by a tightening element (26) which is affixed to one of the implement and the support (2, 4) so as to be rotatable relative to both parts (2, 4).

Abstract: A spraycoating device comprising at least one coating liquid spray gun (2) which contains a measuring valve device (40) opening or closing a compressed gas measuring valve flow path (42) depending in the positions of a liquid feed valve (4). The measurement of the compressed gas flow allows automatically determining whether the liquid feed valve (4) is situated in a fully close or a fully open position or in an arbitrary intermediate position thereto.

Abstract: A valve needle (2), in particular for spraycoating apparatus and their spraycoating devices. The valve needle (2) consists of a shank (4) and of a plunger (8) affixed thereon. The shank (4) is made of another material than is the plunger (8). A preferred material for the shank (4) is an industrial ceramic.

Abstract: A spray-coating system comprising a spraying implement (2) affixable to a support (4) by a tightening element (26) which is affixed to one of said part (2, 4) so as to be rotatable relative to both parts (2, 4).

Abstract: A fluid spray system in particular for a spray-coating material, comprising a spray nozzle (2) detachably affixed by a rapid rotational connection assembly (22, 24, 26, 28, 30) to a main body (4).

Abstract: A fixing device for a spraying device for fixing a spraying device (2) to a support (6), especially to an arm of a robot is disclosed. A mechanical quick-fixing device (16, 18, 20, 22, 26) and a pneumatic tensioning device (10, 12, 14) are provided in combination in such a way that the spraying device (2) may be quickly fixed mechanically to the support (6) or removed from it by the quick-fixing device, and that the spraying device (2), as long as it is mechanically fixed to the support (6), is pneumatically tensioned or biased relative to the support (6) by the pneumatic tensioning device.

Abstract: Apparatus is disclosed for cleaning exposed surfaces on a nozzle and air cap assembly of an automatic paint spray gun. Solvent is delivered to a nozzle for cleaning the exposed surfaces. The nozzle is supported by a piston which is moved by the solvent flow to advance the nozzle to a cleaning position in front of the spray gun. Solvent cannot flow to the solvent nozzle until the piston moves the solvent nozzle to the cleaning position. A spring retracts the piston and the nozzle when solvent flow ceases. During cleaning, an air curtain protects the spray gun from the solvent and paint spray.