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Used processing in Alberta, Canada

  • 404 POSITIVE DISPLACEMENT ROOTS FLO

    404 POSITIVE DISPLACEMENT ROOTS FLO BLOWER

    • Manufacturer: Howden Roots

    ROOTSFLO 404 DuroFlow® 45 Series Equivalent 4504 BJI Equivalent A44 Common Carrier is recommended for the ROOTSFLO 404

    Edmonton, Canada
  • Model VB037XP with special paint

    Model VB037XP with special paint

    • Manufacturer: Howden

    Howden may make improvements and dimensional changes to equipment designs based on market trends and requirements. Vortex® is a registered trademark of Howden.

    Edmonton, Canada
  • 24 URAI ROOTS BLOWER

    24 URAI ROOTS BLOWER

    • Manufacturer: Unknown

    All basic Roots URAI blower models consist of a cast iron casing, carburized and ground alloy steel spur timing gears secured to steel shafts with a taper mounting and locknut, and cast iron involute impellers. O...

    Edmonton, Canada
  • 33 URAI ROOTS BLOWER

    33 URAI ROOTS BLOWER

    • Manufacturer: Unknown

    Part number: 65105020 | Max flow: 195 CFM | Max pressure: 12 psi | Max vacuum: 15″ Hg | Roots blower: Roots Model 33 URAI | Flow range: to 195 CFM | Max δ pressure: 12 psi | Max δ vacuum: 15″ Hg | Maximum rpm: 3...

    Edmonton, Canada
  • 47 UNIVERSAL RAI® DSL ROTARY

    47 UNIVERSAL RAI® DSL ROTARY POSITIVE DISPLACEMENT ROOTS BLOWER

    • Manufacturer: Universal Instruments

    Roots Model 47 URAI DSL Max flow: 523 CFM | Max pressure: 7 psi | Max vacuum: 15″ Hg | Max speed: 3600 RPM | Flow range: to 523 CFM | Max δ pressure: 7 psi | Max δ vacuum: 15″ Hg | Max rpm: 3600 | Min rpm: 848 | ...

    Edmonton, Canada
  • 59 UNIVERSAL RAI® DSL ROTARY

    59 UNIVERSAL RAI® DSL ROTARY POSITIVE DISPLACEMENT ROOTS BLOWER

    • Manufacturer: Universal Instruments

    Roots Model 59 URAI DSL Max flow: 857 CFM | Max pressure: 7 psi | Max vacuum: 15″ Hg | Max speed: 2850 RPM | Flow range: to 857 CFM | Max δ pressure: 7 psi | Max δ vacuum: 15″ Hg | Max rpm: 2850 | Min rpm: 763 | ...

    Edmonton, Canada
  • 45 UNIVERSAL RAI-J® WHISPAIR™ ROTARY

    45 UNIVERSAL RAI-J® WHISPAIR™ ROTARY POSITIVE ROOTS BLOWER

    • Manufacturer: Howden Roots

    Roots Model 45 URAI-J® Part number: 74066020 | Max flow: 395 CFM | Max pressure: 10 psi | Max vacuum: 15Hg | Max speed: 3600 RPM | Flow range: to 395 CFM | Max δ pressure: 10 psi | Max δ vacuum: 15″ Hg | Max rpm:...

    Edmonton, Canada
  • 53 URAI ROOTS URAI GAS

    53 URAI ROOTS URAI GAS BLOWER

    • Manufacturer: Howden Roots

    Roots Model 53 URAI-G Gas Blower Mechanical Seals 1/8” NPT Purge Ports for buffer or seal gas All units are mechanically tested and given 15 psig static leak test

    Edmonton, Canada
  • 56 URAI ROOTS URAI GAS

    56 URAI ROOTS URAI GAS BLOWER

    • Manufacturer: Howden Roots

    Roots Blowers Model 56 URAI-G Gas Blower Mechanical Seals 1/8” NPT Purge Ports for buffer or seal gas All units are mechanically tested and given 15 psig static leak test

    Edmonton, Canada
  • 1125 TRI-NADO Roots Blower

    1125 TRI-NADO Roots Blower

    • Manufacturer: Unknown

    5800 CFM 28" Hg Mounting gaskets incl. Filled w/ Synthetic oil Build to order 5-7 days

    Edmonton, Canada
  • Tri-Nado 1125

    Tri-Nado 1125

    • Manufacturer: Unknown

    Description content is required. Max flow: 5760 CFM | Max vacuum: 28" Hg | Max speed: 2000 RPM max

    Edmonton, Canada
  • 33 URAI ROOTS URAI GAS

    33 URAI ROOTS URAI GAS BLOWER

    • Manufacturer: Howden Roots

    Mechanical Seals 1/8” NPT Purge Ports for buffer or seal gas All units are mechanically tested and given 15 psig static leak test

    Edmonton, Canada
  • 36 URAI-J-DSL WHISPAIR™ ROTARY POSITIVE

    36 URAI-J-DSL WHISPAIR™ ROTARY POSITIVE ROOTS BLOWER

    • Manufacturer: Howden Roots

    Roots Model 36 URAI-J-DSL Part number: T30418020 | Max flow: 330 CFM | Max pressure: 7 psi | Max vacuum: 15Hg | Max speed: 3600 RPM | Flow range: to 330 CFM | Max δ pressure: 7 psi | Max δ vacuum: 15″ Hg | Maximu...

    Edmonton, Canada
  • 817 RCS-J Whispair Rotary Positive

    817 RCS-J Whispair Rotary Positive Roots Blower

    • Manufacturer: Howden Roots

    ROOTS™ RCS-J Frame 817 Max flow: 3179 CFM | Max pressure: 18 psi | Max vacuum: 16Hg | Max speed: 2250 RPM | Flow range: to 3179 CFM | Max δ pressure: 18 psi | Max δ vacuum: 16″ Hg | Maximum rpm: 2250 | Minimum rp...

    Edmonton, Canada
  • 824 RCS Roots Blower

    824 RCS Roots Blower

    • Manufacturer: Unknown

    4460 CFM 16" Hg 2 year warranty Mounting gaskets incl. Filled w/ Synthetic oil Build to order 5-7 days

    Edmonton, Canada
45678

Overview

Positive displacement blowers move a fixed volume of gas by trapping and displacing it through rotating or reciprocating elements. They’re used for steady, low-to-medium pressure applications like pneumatic conveying, aeration, vacuum hold-down and process gas boosting. Buyers value rotor condition, clearances, seals, and drive components, as these determine efficiency, noise and longevity.

FAQ

What should I check when buying a used positive displacement blower?

Inspect rotor surfaces, clearances, seals, bearings, and drive couplings. Check service history, wear limits, vibration logs, and whether rotors have been repaired. Verify inlet/outlet flange sizes, speed ratings, and any required certification for your application.

How do I arrange safe shipping for a blower?

Use a carrier experienced with rotating equipment. Secure rotors, block shafts at rated lift points, protect seals and openings with caps and desiccants, and crate on a solid skid. Note weight, center of gravity, and any loose ancillaries to avoid damage.

What maintenance keeps a blower reliable?

Follow oil and filter change intervals, monitor vibration and bearing temperatures, check rotor clearances and seals periodically, and replace gaskets and packing before leaks develop. Keep inlet filters clean and maintain alignment of the driver and coupling.