In order to avoid any accident during pneumatic conveying of products from tank trucks to silos, an electronic control unit was studied, able to monitor silo internal pressure, maximum level indicator intervention, loading valve efficiency and compressed air presence for correct cleaning of dedusting filter.

In case of an offset from safety parameters, the control unit, after giving a signal for a possible intervention, closes loading pipe pinch valve, which is opened again upon return of parameters into norm.

Silo loading operator can check the type of activated alarm on the display panel (max level, max silo pressure, etc.).

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