Powder storage silos are commonplace in many industries handling cement, lime, sugar, flour, etc. but are at risk of over-pressurisation of 1-2 PSI during deliveries.
The root causes of this are invariably either driver error resulting in uncontrolled air pressure being discharged during the filling procedure, or a failure of the filter venting unit. Pressures from as little as 1 or 2 PSI are enough to rupture a silo or blow its filter unit off the top. This poses serious risks, which is why a comprehensive, failsafe safety and control system is vital.
