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RAM-DPJ (Whispair) Rotary Positive Blower

Heavy-duty, versatile, high-pressure blower

ROOTS® RAM Series high pressure blower allowing for recirculation of externally cooled gas to cool the blower and achieve higher discharge pressures.

  • Pressure to 30 psig (2068 mbar)
  • Flows to 670 cfm (1140 m3/hr)

Key Features

  • Single stage operation to 30 psig
  • Detachable steel mounting feet
  • Alloy steel timing gears.
  • Cylindrical roller bearings. 
  • Piston ring air seals.
  • Lip-type, hydrodynamic drive shaft seal.
  • Splash lubricated spur timing gears and drive end bearings.

Benefits

  • Exclusive Discharge Jet Plenum: The ROOTS RAM DPJ WHISPAIR rotary blower features a unique discharge jet plenum design, enabling cool, pressurized system air to flow into the cylinder, allowing operation at high pressure levels with a single stage unit.
  • High-Pressure Operation: Designed for continuous operation at discharge pressures up to 30 psig, the blower has no valves, vanes, or Teflon rings.
  • Heavy-Duty Construction: RAM rotary blowers feature integral-shaft ductile iron impellers with an involute profile, grey iron headplates, and a rigid one-piece casing.
  • Efficient Sealing Mechanisms: Piston rings and lip-type oil seals minimize air leakage and prevent lubricant from entering the air chamber, with a hydrodynamic seal on the drive shaft preventing oil leaks.
  • Efficient Lubrication: Carburized and ground alloy steel spur timing gears are splash lubricated at both ends, with piston rings and lip-type oil seals preventing air leakage and lubricant entry into the air chamber.
  • Versatile Mounting Options: Detachable steel mounting feet allow easy adaptation to vertical or horizontal installation requirements, with extended shafts available for different outlet configurations.
  • Warranty Coverage: A warranty period of Twenty-Four months from date of original unit start-up or 30 months from date of original shipment is provided.

Key Features

Key Features

  • Single stage operation to 30 psig
  • Detachable steel mounting feet
  • Alloy steel timing gears.
  • Cylindrical roller bearings. 
  • Piston ring air seals.
  • Lip-type, hydrodynamic drive shaft seal.
  • Splash lubricated spur timing gears and drive end bearings.

Benefits

Benefits

  • Exclusive Discharge Jet Plenum: The ROOTS RAM DPJ WHISPAIR rotary blower features a unique discharge jet plenum design, enabling cool, pressurized system air to flow into the cylinder, allowing operation at high pressure levels with a single stage unit.
  • High-Pressure Operation: Designed for continuous operation at discharge pressures up to 30 psig, the blower has no valves, vanes, or Teflon rings.
  • Heavy-Duty Construction: RAM rotary blowers feature integral-shaft ductile iron impellers with an involute profile, grey iron headplates, and a rigid one-piece casing.
  • Efficient Sealing Mechanisms: Piston rings and lip-type oil seals minimize air leakage and prevent lubricant from entering the air chamber, with a hydrodynamic seal on the drive shaft preventing oil leaks.
  • Efficient Lubrication: Carburized and ground alloy steel spur timing gears are splash lubricated at both ends, with piston rings and lip-type oil seals preventing air leakage and lubricant entry into the air chamber.
  • Versatile Mounting Options: Detachable steel mounting feet allow easy adaptation to vertical or horizontal installation requirements, with extended shafts available for different outlet configurations.
  • Warranty Coverage: A warranty period of Twenty-Four months from date of original unit start-up or 30 months from date of original shipment is provided.

Performance and Data Sheets