VAC 20 systems are based on a powerful vacuum unit, a modular design dust collector and a modern control unit/starter. VAC 20 units are available in several sizes. 8-40 extraction points can be in operation at the same time, served by one single unit. If you need more extraction points, any capacity can be achieved by parallel connection of multiple units. VAC 20 units are protected from overload by a flow restrictor and the VAC 20 is equipped with an overheat protection sensor. VAC 20 units are designed for use in modern systems with automatic vacuum valves. This means that the air flow can vary rapidly from max flow to zero. The power consumption adapts to the specific need. The VAC 20 unit comes to a complete stop when idle, thanks to the automatic start/stop function (option).