They allow the collection flows to be diverted, thus optimizing the use of the same vacuum cleaner for different functions or, in the case of two collection inlets, one can be closed to increase the efficiency of the other.
They are available with manual or automatic closures via pedal solenoid valves through which various machines can be connected, therefore allowing sequential or simultaneous aspiration in various collection points with a single aspirator.
In case of use of the vacuum cleaner for machine tools, they are extremely functional and convenient for connecting a floor cleaning system to be used at the end of the daily work cycle without having to disassemble any part of the vacuum cleaner.
