ROOTS™ RAM-VJ Whispair 412 Rotary Positive Displacement Blower
Model: RAM-VJ WHISPAIR 412
Equipped with a dedicated inlet spray nozzle and water flow meter, the ROOTS™ RAM-VJ Whispair Water Sealed Vacuum Exhauster - 412 maintains excellent thermal control during demanding operations. This 400-pound system achieves up to 797 CFM flow and 24 inches of mercury vacuum. Piston-ring air seals and hydrodynamic drive-shaft protection safeguard the internal mechanism, while a rigid grey-iron casing delivers exceptional long-term structural integrity.
Technical Details
412 RAM-VJ Whispair Blower
Model: ROOTS™ RAM VJ WHISPAIR 412
Flow Range: Up to 600 CFM
Max Δ Pressure: 15 psi
Max Δ Vacuum: 24″ Hg
Maximum RPM: 3200
Minimum RPM: 848
Max ΔT: 60°F
Inlet Connection: 6″ FLG
Discharge Connection: 5″ FLG
Shaft Diameter: 1.5″
Drive End Lubrication: Oil
Gear End Lubrication: Oil
Required Oil Horizontal Unit: 19 oz drive end, 36 oz gear end
Required Oil Vertical Unit: 9 oz drive end, 18 oz gear end
Unit Weight: 400 pounds
RAM-VJ Whispair 412 Design & Construction Features
Water injection cooling system for deeper vacuum performance
Reduced operating noise during vacuum operation
Improved volumetric efficiency for industrial airflow systems
Alloy steel timing gears for dependable synchronization
Cylindrical roller bearings for heavy duty support
Long life mechanical sealing system
Splash oil lubrication on both ends of the unit
Fewer internal wear components for easier maintenance
Horizontal and vertical mounting flexibility
Designed for continuous industrial vacuum service
Warranty Information
ROOTS™ RAM VJ WHISPAIR™ vacuum exhausters are backed by a warranty period of 12 months from the original startup date or 18 months from the original shipment date, whichever occurs first.