Ventileinheit zum Unterbrechen oder Freigeben eines Durchflusses eines Mediums laengs eines Hohlkanals sowie deren Verwendung in einem Dosiersystem zum dosierten Ausbringen des Mediums sowie Verfahren zum dosierten Ausbringen eines Mediums

DE 102006045407 A1 UPAB: 20080513 NOVELTY - The valve unit comprises a first magnetic unit which can move axially along the direction of flow of liquid (5) through a channel (3) and a second, fixed magnetic unit (8) whose field interacts with it to attract it. A stop on the channel limits the movement of the first unit and allows the pressure it exerts on the liquid to be adjusted. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for dosing liquids using cartridge (3) and needle (1) dispensers fitted with the valve unit. USE - In dosing systems comprising a cartridge and a dispensing needle (claimed, e.g. for oil, grease, adhesives and soldering pastes. ADVANTAGE - Dispensing is more precis