| 摘要 |
A device for supplying at least one sprayer with a liquid coating product comprises at least one valve which in turn comprises a moving needle, a valve body which defines a circulation volume for the coating product and a seat for supporting the needle, the pneumatic means for driving the needle in translation along an axis (X120) away from or towards the seat, said pneumatic drive means comprising a piston constrained to move in translation with the needle and sliding within a guide body (122). A head (150) defining together with the guide body (122) a variable volume chamber is constrained to rotate with said volume by means of slots (158) and corresponding protruding elements (154) respectively arranged on the head (150) and on the guide body (122). The guide body (122) is screwed onto the valve body, with its screwing axis (X120) coinciding with the axis of separation/approach, while the head is provided with reliefs (192) for rotation of the head around the axis for screwing thereof onto the valve body. A mounting/dismounting tool for such a device comprises an end-piece, provided with reliefs complementary to the driving reliefs (192) provided on the head (150), as well as a manoeuvring handle. |
