FIELD: spraying; pulverisation.
SUBSTANCE: device for supplying at least one sprayer with a liquid coating product comprises at least one valve (100) for controlling the flow of the coating product to the sprayer. Said valve comprises moveable needle (132), valve body (102) which defines circulation volume (104A, 106A) of the coating product and seat (114) for supporting the needle in the closed configuration of the valve. Pneumatic drive means (128, 140) drive the needle in translation along axis (X120) away from or towards the seat. Said pneumatic drive means comprise piston (140) constrained to move in translation with needle (132) and mounted slidably in guide body (122). Said pneumatic drive means also comprise end-piece (176) penetrating into transfer chamber (178). Communication means (184) link end-piece (176) or transfer chamber (178) with variable-volume chamber (165) defined by guide body (122) and first face (142) of piston.
EFFECT: proposing a new device for supplying at least one sprayer with coating product that comprises a valve with a reliabilized operation.
14 cl, 22 dwg
