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What is vacuum?
All industrial vacuums work following the same principle:
The air is extracted from a closed chamber, creating a vacuum inside.
A ventilator, a suction turbine, a side- channel blower or another device to cause air flow can be used to extract the air. Air flows from outside through an opening in the closed chamber, because the general air pressure wants to balance out the vacuum.
If an opening is connected to a suction hose and the flow speed is high enough, in principle the vacuum is ready.
However: All particles pushed into the closed chamber with the air that is pushed in is blown out by the suction turbine (if it gets through), which in itself would just move the dirt around.
Thus mechanisms are required, to separate the vacuumed air from the vacuumed particles.
Vacuuming is really pressing with the air that surrounds us all!
This also makes it clear where the limits for technical vacuuming parameters lie.
Air pressure above approx 1 bar is not available.
The air speed measured at raw gas inlet relates directly to the vacuum pressure in – mbar the suction drive can produce
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