Abstract: A volumetric dosing pump (10) is described, for delivering and dosing powdery, liquid, pasty or creamy products, comprising a first duct (5) for entering the product to be dosed, a second duct (9) for exiting such dosed product, an internal recess (12) connected to the first duct (5) for entering the product to be dosed and at least one pumping element with progressive recesses (7), which doses such product, operatively connected to motor means and fluid connected to the internal recess (12) and to the second duct (9) for exiting such dosed product, the pumping element with progressive recesses (7) comprising an external stator case (14) and an internal rotor (15) driven in rotation by the motor means, the internal rotor (15) being shaped as a worm screw with progressive recesses and the stator comprising an internal surface (16) in contact with the rotor (15) and shaped as worm screw.

Abstract: A method of preparing compounds comprising a plurality of components, the method comprising providing a modular dye meter, introducing component into one or more than one modular batching member of the modular dye meter, where the compound to be prepared comprises the one or more than one component, activating the internal rotor of one or more than one of the batching and delivering devices, thereby causing the internal rotors to rotate in the first direction, where rotation of the internal rotor moves component through the progressive recesses of the batching and delivering device through the corresponding delivery duct and through the dispenser, and thereby into a vessel for containing the compound, causing the rotation of the internal rotor in the first direction to cease, causing the internal rotor to rotate in a second direction, where the second direction is opposite to the first direction, thereby moving component back through the delivery duct into the corresponding batching and delivering device, and

Abstract: A method of preparing compounds comprising a plurality of components, the method comprising providing a modular dye meter, introducing component into one or more than one modular batching member of the modular dye meter, where the compound to be prepared comprises the one or more than one component, activating the internal rotor of one or more than one of the batching and delivering devices, thereby causing the internal rotors to rotate in the first direction, where rotation of the internal rotor moves component through the progressive recesses of the batching and delivering device through the corresponding delivery duct and through the dispenser, and thereby into a vessel for containing the compound, causing the rotation of the internal rotor in the first direction to cease, causing the internal rotor to rotate in a second direction, where the second direction is opposite to the first direction, thereby moving component back through the delivery duct into the corresponding batching and delivering device, and

Abstract: 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).

Abstract: A method of preparing compounds comprising a plurality of components, the method comprising providing a modular dye meter, introducing component into one or more than one modular batching member of the modular dye meter, where the compound to be prepared comprises the one or more than one component, activating the internal rotor of one or more than one of the batching and delivering devices, thereby causing the internal rotors to rotate in the first direction, where rotation of the internal rotor moves component through the progressive recesses of the batching and delivering device through the corresponding delivery duct and through the dispenser, and thereby into a vessel for containing the compound, causing the rotation of the internal rotor in the first direction to cease, causing the internal rotor to rotate in a second direction, where the second direction is opposite to the first direction, thereby moving component back through the delivery duct into the corresponding batching and delivering device, and

Abstract: A cartridge-type single-screw pump (1) is described, adapted to volumetrically batch and deliver a certain amount of a fluid contained inside storage means and to supply it to distributing means, comprising an external fixed pump body (10) and a removable pumping cartridge (20), such 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 further described, equipped with at least one cartridge-type single-screw pump (1).