| 摘要 |
A sprayer device includes a main tank (2) for a carrier product, at least one tank (4, 8) for a chemical product intended to be mixed with the carrier product, a sprayer manifold (12) or the like and a pump (10) downstream of the main tank (2) for feeding the carrier product under pressure from the main tank to the sprayer manifold or the like. Means (34) are provided to create a calibrated pressure drop between the outlet of the main tank (2) for a carrier product and the inlet of the pump (10). Each tank (4, 8) for a chemical product is connected to an injection line (18) between the main tank (2) for a carrier product and the pump (10) by means (38, 42) enabling injection into that line of the chemical product in the corresponding chemical product tank.
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