| 摘要 |
A cartridge-type single-screw pump (1) is provided. The pump (1) is adapted to volumetrically batch and deliver a certain amount of a fluid contained inside at least one storage tank and to supply it to a nozzle or delivering head. The pump (1) including an external fixed pump body (10) and a removable pumping cartridge (20), with the removable pumping cartridge (20) being adapted to be inserted in at least one insertion seat (11) of the external fixed pump body (10) in order to operatively cooperate with this latter one. A dye-meter is also provided. The dye-meter includes at least one cartridge-type single-screw pump (1).
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