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ROOTS™ 412 RAM DVJ WHISPAIR Dry Vacuum Blower

Model: 412 RAM DVJ WHISPAIR

The ROOTS™ 412 RAM DVJ WHISPAIR dry vacuum blower delivers high capacity thermal management for industrial processes operating under extreme vacuum conditions. Producing a strong volumetric flow up to 1038 CFM, this system utilizes a cooling air jet system that feeds atmospheric air straight into the grey iron cylinder. This continuous cooling action completely isolates the housing from extreme heat distortion, enabling smooth, uncompromised performance without water injection or external cooling accessories.

Key Specifications
Max Flow
1038 CFM
Max Vacuum
27″ Hg
Maximum Speed
4000 RPM
Manufacturer
Roots
IO&M Manuals
Literature

Technical Details

The ROOTS™ RAM DVJ WHISPAIR series is built to handle deep industrial vacuum depressurization while eliminating common heat-management struggles. Featuring specialized aluminum covers to shed heat, along with precision-balanced ductile iron impellers, this 575-pound unit maintains exceptional dimensional stability even during intensive continuous-run cycles.

Model: ROOTS™ 412 RAM DVJ WHISPAIR
Flow Range: Up to 1038 CFM
Max Δ Vacuum: 27″ Hg
Maximum RPM: 4000
Minimum RPM: 850
Max ΔT: 275°F
Inlet Connection: 6″ Flange
Discharge Connection: 6″ Flange
Jet Port Connection: 5″ Flange
Shaft Diameter: 1.5″
Drive End Lubrication: Oil
Gear End Lubrication: Oil
Required Oil Horizontal Unit: 55 ounces
Required Oil Vertical Unit: 27 ounces
Unit Weight: 575 pounds (261.4 kg)

ROOTS™ 412 RAM-DVJ Design and Features

Continuous dry vacuum operation reaching up to 27″ Hg in single-stage configurations
Specialized cooling jet plenum structure avoids extreme discharge temperature spikes
Wear-free architecture uses no sliding vanes, intricate valves, or fragile Teflon rings
Taper-mounted alloy steel timing gears provide secure, slipping-resistant synchronization
Heavy-duty cylindrical roller bearings resist strong structural forces during deep draws
Form-fitting piston ring air seals ensure minimal gas loss across headplate bores
Standard lip seals isolate the main chamber, with customizable mechanical seals available
Independent dual-end oil sumps utilize dependable splash lubrication
Interchangeable steel mounting feet support straightforward layout conversion on site

Warranty Information

12 months from original unit startup or 18 months from original shipment, whichever occurs first.