Model 5500 PD Plus Double Envelope Gastight Blowers

Model 5500 PD Plus Double Envelope Gastight Blowers

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Model 5500 PD Plus Double Envelope Gastight Blowers

Model 5500 PD PLUS heavy duty industrial blowers are designed for high performance applications, up to 18 PSIG (1.24 bar g) pressure boost or 17” Hg (-575 mbar g) dry vacuum (24” Hg [-810 mbar g]water injected).

64/67 Series (Double Envelope Gastight)
This series is built to laboratory standards where virtually complete sealing is required. In addition to the features shown on the 57/81 series, the drive shaft is mechanically sealed and the oil sumps are plugged to provide an even higher degree of leakage protection.


  • Soil Vapor Extraction
  • Oil-Free Handling Fuel, Utility or Process Gases
  • Pulp/Paper Processing
  • Laser Recirculation Systems
  • Fluid Bed Combustion
  • Closed Loop Pneumatic Conveying
  • Vapor Recovery
  • Digester Gas Processing
  • Steam Compression
  • High-Performance Applications
  • Pressure Boosting


  • Gears: Helical gearing for quiet operation
  • Bearings:                    
    • Gear End: Double row ball
    • Free End: Cylindrical roller
    • Drive Shaft: Single row ball


  • Rotors: Ductile iron, integrally cast with shafts
  • Lubrication: Oil splash standard, external pressure lubrication available
  • Seals: Mechanical/Labyrinth on rotor shafts; mechanical seal on drive shaft
  • Available in special materials such as:                    
    • Stainless steel
    • Carbon steel
    • Bronze
    • Aluminum
    • Electroless nickel plated

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