The process-safe and precise filling of liquids in tubular bags is essential. Complete machines and systems which are using filling systems based on the endless piston principle can fulfil the high requirements and demands for the dosing technology best. A constant volume per each revolution of the rotor is guaranteed. The volume is clearly defined by the angular degrees. This technology offers a pressure-constant, linear pumping performance curve. It is possible to define exactly the ratio of revolutions, time and dosing volume. No dripping, no mess!