An aspiration fan system vacuums air from inside the filter bags. The fan helps trap the dust in the polyester needle filter bags. With the signal coming from the pulse valves by the electronic program unit, the compressed air is blown into the filter bag and the dust adhering to the bag is cleaned by shaking and the dust is included in the system. The differential pressure sensor warns the operator for the maximum efficiency of the equipment to which it is connected by showing that the filter bags should be changed or cleaned.
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