Silo Capacity (Cement) 88 - 94 tons* Operating Pressure 14.5 psig Bottom Aeration HV Flow-Cones (4) Discharge Pipe 5” Sch. 40 Fill Pipe 5” Sch. 40 Vent Pipe 4” Sch. 40 Gravity Secondary Discharge 10” w/ Butterfly Valve Top Manway 20” Press. Dome Lid Bottom Manway 20” Press. Dome Lid