RAM-DVJ (Air Injected Whispair) Rotary Positive Blower

Heavy-duty, adaptable vacuum blower with air injection

The ROOTS® RAM Series vacuum blower uses air injection technology to enable continuous operation at deep vacuum levels, including blank-off conditions, with a single-stage unit.

Categories: PD Blowers, RAM Blower Series

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Description

Heavy-duty, adaptable vacuum blower with air injection

The ROOTS® RAM Series vacuum blower uses air injection technology to enable continuous operation at deep vacuum levels, including blank-off conditions, with a single-stage unit.

  • Vacuum capability up to 27” Hg (910 mbar)
  • Airflow up to 2400 cfm (4077 m³/hr)

 

Key Features

  • Single-stage design rated for up to 27” Hg vacuum
  • Steel mounting feet that can be repositioned for various setups
  • Hardened alloy steel timing gears
  • High-load capacity cylindrical roller bearings
  • Air-tight piston ring seals
  • Hydrodynamic lip-type seal on the drive shaft
  • Splash-lubricated timing gears and drive-end bearings

 

Benefits

  • Continuous Deep Vacuum Capability: The DVJ WHISPAIR™ blower features internal air injection that cools the unit, allowing it to operate continuously even at blank-off conditions of 27” Hg vacuum using just one stage.
  • Sturdy and Reliable Build: Designed with ductile iron impellers on integral shafts, supported by grey iron headplates and a single-piece casing for maximum durability.
  • Advanced Sealing System: Piston ring and lip-type oil seals work together to limit air leakage and keep lubricants from entering the air stream. A hydrodynamic seal ensures oil stays contained at the drive shaft.
  • Optimized Lubrication: Ground and carburized alloy timing gears are splash-lubricated on both ends for reliable, low-maintenance operation.
  • Mounting Flexibility: Adjustable steel mounting feet make installation easy in either horizontal or vertical positions, with optional extended shaft designs available.
  • Trusted Warranty Coverage: Backed by a 24-month warranty from start-up or up to 30 months from the original ship date—whichever comes first.

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