The Vacuum Blower VBH Series utilizes negative air pressure to convey the material. The motive airpressure is produced by a positive displacement blower which is located at the end of the conveying system. Inline filter prevents material from entering blower in case of a bag leakAir operated vacuum breaker valve allows blower to come up to speed under a no load condition and protect the blower against a high vacuum condition (open based on vacuum switch setting if programmed into process controls)Positive displacement blower - all major brands availableElectric motor and adjustable mount base 230460 V, 3 Ph, 60 Hz all major brands, enclosures and efficiency ratings availableDischarge weatherhood prevents birds and large debris from entering discharge silencer while in the off conditionCombination chamber absorption discharge silencer reduces noise radiation in the vicinity of the packageV-Belt drive assembly and drive guard drive guard features access via removable doors, slotted front and drop through bottomVibration isolation and expansion joint isolates blower from the silencer to prevent fatigue stresses to the silencer