Description

High-performance, rugged air-injected vacuum blower

The ROOTS® DVJ WHISPAIR™ dry vacuum exhauster features a specialized discharge jet plenum that channels cool ambient air into the cylinder. This innovative airflow system allows the unit to operate continuously at blank-off vacuum conditions with just a single blower.

• Achieves vacuum levels to 27” Hg
• Delivers airflow up to 16,780 SCFM

Key Features

• Available with v-belt or direct drive options
• Durable cast iron cylinder and end plates
• Cylindrical roller bearings for low-friction performance
• Spur timing gears with splash lubrication
• Standard pipe-size inlet and outlet connections
• High-strength ductile iron impellers with involute profile

Benefits

• Superior Vacuum Performance: Specifically designed to exceed the vacuum limits of traditional dry exhausters, this unit includes internal cooling airflow to manage discharge temperatures and protect downstream equipment during high-vacuum operation.
• Long-Lasting Durability: Built with a solid one-piece casing and grey iron components, the DVJ blower features carburized alloy steel timing gears, taper-mounted to the shafts and locked with a nut for added stability. Cylindrical roller bearings further enhance reliability.
• Optimized Sealing System: Piston ring seals and lip-type oil seals reduce internal air loss and prevent oil from contaminating the air stream, while the hydrodynamic shaft seal ensures no leakage from the drive side.
• Consistent Lubrication: The blower is splash-lubricated at both ends, promoting steady, low-maintenance operation over long cycles.
• Warranty Assurance: Includes warranty coverage for 12 months from initial start-up or 18 months from shipping date—whichever comes first.

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