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The Gardner Denver™ DuroFlow® Family of Products

For nearly fifty years, Gardner Denver™ DuroFlow® positive displacement blowers/ vacuum pumps have combined leading-edge technology and on-the-job experience to continuously deliver enhanced designs and improved performance.
Unit of Measure

Dimensions

Weight

 N/A 90 lb

Port Size Connection

 N/A 2.5 in

Connection Type

 N/A NPT

Shaft Diameter

 N/A 1.00 in

Mounting Bolt Hole Diameter

 N/A 0.56 in

A

 N/A 17.20 in

B

 N/A 11.62 in

C

 N/A 8.91 in

D

 N/A 2.06 in

E

 N/A 8.82 in

F

 N/A 12.50 in

G

 N/A 4.00 in

H

 N/A 9.00 in

J

 N/A 4.00 in

K

 N/A 8.06 in

L

 N/A 4.50 in

M

 N/A 6.56 in

N

 N/A 8.36 in

P

 N/A 1.50 in

Q

 N/A 4.41 in

R

 N/A 6.25 in

S

 N/A 2.00 in

T

 N/A 4.50 in

Pressure Performance Data

Speed for Pressure Performance

 N/A 2950 rpm3550 rpm4000 rpm

Airflow at 4 psig Pressure and 2950 rpm Speed

 N/A 2.5 bhp94 ft³/min

Airflow at 4 psig Pressure and 3550 rpm Speed

 N/A 3.1 bhp121 ft³/min

Airflow at 4 psig Pressure and 4000 rpm Speed

 N/A 3.6 bhp141 ft³/min

Airflow at 6 psig Pressure and 2950 rpm Speed

 N/A 3.7 bhp85 ft³/min

Airflow at 6 psig Pressure and 3550 rpm Speed

 N/A 4.5 bhp112 ft³/min

Airflow at 6 psig Pressure and 4000 rpm Speed

 N/A 5.2 bhp133 ft³/min

Airflow at 8 psig Pressure and 2950 rpm Speed

 N/A 4.8 bhp78 ft³/min

Airflow at 8 psig Pressure and 3550 rpm Speed

 N/A 5.9 bhp105 ft³/min

Airflow at 8 psig Pressure and 4000 rpm Speed

 N/A 6.8 bhp125 ft³/min

Airflow at 10 psig Pressure and 2950 rpm Speed

 N/A 6.0 bhp72 ft³/min

Airflow at 10 psig Pressure and 3550 rpm Speed

 N/A 7.3 bhp99 ft³/min

Airflow at 10 psig Pressure and 4000 rpm Speed

 N/A 8.3 bhp119 ft³/min

Airflow at 12 psig Pressure and 2950 rpm Speed

 N/A 7.1 bhp66 ft³/min

Airflow at 12 psig Pressure and 3550 rpm Speed

 N/A 8.7 bhp93 ft³/min

Airflow at 12 psig Pressure and 4000 rpm Speed

 N/A 9.9 bhp113 ft³/min

Airflow at 15 psig Pressure and 3550 rpm Speed

 N/A 10.8 bhp85 ft³/min

Airflow at 15 psig Pressure and 4000 rpm Speed

 N/A 12.3 bhp105 ft³/min

Vacuum Performance Data

Speed for Vacuum Performance

 N/A 2950 rpm3550 rpm4000 rpm

Airflow at 4 inHg Vacuum and 2950 rpm Speed

 N/A 1.3 bhp104 ft³/min

Airflow at 4 inHg Vacuum and 3550 rpm Speed

 N/A 1.7 bhp131 ft³/min

Airflow at 4 inHg Vacuum and 4000 rpm Speed

 N/A 2.0 bhp151 ft³/min

Airflow at 6 inHg Vacuum and 2950 rpm Speed

 N/A 1.9 bhp96 ft³/min

Airflow at 6 inHg Vacuum and 3550 rpm Speed

 N/A 2.4 bhp123 ft³/min

Airflow at 6 inHg Vacuum and 4000 rpm Speed

 N/A 2.8 bhp143 ft³/min

Airflow at 8 inHg Vacuum and 2950 rpm Speed

 N/A 2.5 bhp88 ft³/min

Airflow at 8 inHg Vacuum and 3550 rpm Speed

 N/A 3.1 bhp115 ft³/min

Airflow at 8 inHg Vacuum and 4000 rpm Speed

 N/A 135 ft³/min3.6 bhp

Airflow at 10 inHg Vacuum and 2950 rpm Speed

 N/A 3.0 bhp80 ft³/min

Airflow at 10 inHg Vacuum and 3550 rpm Speed

 N/A 3.8 bhp107 ft³/min

Airflow at 10 inHg Vacuum and 4000 rpm Speed

 N/A 4.4 bhp127 ft³/min

Airflow at 12 inHg Vacuum and 4000 rpm Speed

 N/A 119 ft³/min5.1 bhp

Airflow at 12 inHg Vacuum and 2950 rpm Speed

 N/A 3.6 bhp72 ft³/min

Airflow at 12 inHg Vacuum and 3550 rpm Speed

 N/A 4.5 bhp99 ft³/min

Airflow at 14 inHg Vacuum and 3550 rpm Speed

 N/A 5.1 bhp90 ft³/min

Airflow at 14 inHg Vacuum and 4000 rpm Speed

 N/A 5.9 bhp100 ft³/min

Airflow at 15 inHg Vacuum and 4000 rpm Speed

 N/A 6.3 bhp106 ft³/min

Reach Higher with the DuroFlow® 45 Series

Cylinder Design

 N/A One Piece Cylinder

Cylinder Design for Competitor A

 N/A Two Piece Cylinder

Cylinder Design for Competitor B

 N/A One Piece Cylinder

Cylinder Rib Design

 N/A Integral Cylinder Ribs

Cylinder Rib Design for Competitor A

 N/A Minimal Cylinder Ribs

Cylinder Rib Design for Competitor B

 N/A Minimal Cylinder Ribs

Drive End Bearings

 N/A Oversized Double Row Ball Angular Contact (Drive and Non-drive Shafts)

Drive End Bearings for Competitor A

 N/A Single Row Ball (Non-Drive Shaft)

Drive End Bearings for Competitor B

 N/A Cylindrical Roller

Dual Splash Lubrication

 N/A Common Oil Sump

Dual Splash Lubrication for Competitor A

 N/A Separate Oil Reservoirs

Dual Splash Lubrication for Competitor B

 N/A Separate Oil Reservoirs

Gear Type

 N/A Helical

Gear Type for Competitor A

 N/A Straight Spur

Gear Type for Competitor B

 N/A Helical

Gear Attachments

 N/A Spline Gear Fit

Gear Attachments for Competitor A

 N/A Taper Gear Fit

Gear Attachments for Competitor B

 N/A Keyed Interference Fit

Shaft Seal and Seal Surface

 N/A Viton Lip Seal with O-Rings Wear Sleeve

Shaft Seal and Seal Surface for Competitor A

 N/A Viton Lip Seal on Shaft

Shaft Seal and Seal Surface for Competitor B

 N/A Lip Seal on Shaft

DuroFlow® Advantages for Cylinder Design

 N/A Easier assembly/Disassembly Ensures better tip clearance accuracy More rigid and durable Noise and pulsation dampening

DuroFlow® Advantages for Cylinder Rib Design

 N/A Improves heat dissipation Reduces torsion on cylinder

DuroFlow® Advantages for Drive End Bearings

 N/A Better equipped to handle radial and axial loads commonly caused by misaligned V-belt drives Increases bearing life

DuroFlow® Advantages for Dual Splash Lubrication

 N/A Simpler maintenance

DuroFlow® Advantages for Gear Type

 N/A Quiet and smooth mechanical operation Reduces backlash

DuroFlow® Advantages for Gear Attachments

 N/A Eliminates timing loss and improves reliability

DuroFlow® Advantages for Shaft Seal and Seal Surface

 N/A Extended shaft life Improves sealing method

Specifications

Pressure

 N/A Up to 15 psig

Vacuum

 N/A Up to 16 inHg

Airflow

 N/A Up to 4282 ft³/min

Standard Temperature

 N/A 68 ºF

Ambient Pressure

 N/A 14.7 psia

Relative Humidity

 N/A 36 %

Industry Standards/Certifications

 N/A Compressed Air and Gas Institute (CAGI) Energy Star Partner ISO 9001:2008

Brands

 N/A DuroFlow® Gardner Denver™

Applications to Meet Your Industry Needs

Industry

 N/A Aquaculture Cement & Lime Chemical Dairy Dry Bulk Hauling Environmental Services Industrial Milling & Baking Power Generation Pulp & Paper Resin & Plastic Vacuum Excavation Wastewater

Application for Aquaculture Industry

 N/A Aeration

Application for Cement and Lime Industry

 N/A Fluidization and Conveying

Application for Chemical Industry

 N/A Vacuum Processing and Conveying

Application for Dairy Industry

 N/A Automated Milking

Application for Dry Bulk Hauling Industry

 N/A Trailer Unloading and Aeration

Application for Environmental Services Industry

 N/A Sewer Cleaning and Portable Restroom Services

Application for Industrial Industry

 N/A Material Vacuuming

Application for Milling and Baking Industry

 N/A Blending and Conveying

Application for Power Generation Industry

 N/A Fly Ash Conveying and Aeration

Application for Pulp and Paper Industry

 N/A Chip Conveying and Process Vacuum

Application for Resin and Plastic Industry

 N/A Processing and Conveying

Application for Vacuum Excavation Industry

 N/A Potholing and Slurry Recovery

Application for Wastewater Industry

 N/A Aeration and Backwashing

At-A-Glance Features

At-A-Glance Features

 N/A
  • Each model delivers clean, oil-free air to a wide range of industrial applications.
  • World-class engineering and design.
  • Manufactured under rigid ISO 9001 standards by quality craftspersons.
  • Exhaustively tested to meet strict performance criteria to ensure unequaled service life under the most severe operating conditions.
  • Available in the 30, 45 and 70 Series with various configurations and rotor lengths.
  • Horizontal or vertical mounting configuration available for each blower.
  • Supported by a worldwide network of trained professionals and backed by a manufacturer’s warranty
    • 18 months from the date of shipment or
    • 12 months from the date of installation, whichever occurs first

Durable

Durable

 N/A
  • Oversized bearings for added support and greater durability
    • Gear-end bearings support rotor shafts, while drive-end double-row angular contact ball bearings fix the rotor position.
    • Prevents destructive axial rotor movement commonly caused by misaligned V-belt drives.
  • Durable single-piece cast iron cylinder with integral ribs
    • Provides greater strength and rigidity.
    • Ribs improve heat dissipation and prevent distortion that can affect internal clearances reduce performance.
  • Innovative rotor/shaft design machined from a single, high-strength ductile iron casting and dynamically balanced
    • Assures extra strength and rigidity to handle maximum loads on a continuous basis without fatigue, deflection or vibration.
  • Solid rotors
    • Eliminates potential for vibration caused when hollow rotors become unbalanced due to build-up of ingested material inside the rotor cavities.

Reliable

Reliable

 N/A
  • Dual Splash Lubrication
    • Provides superior gear and bearing lubrication for longer life at all operating conditions.
    • Reduces maintenance.
  • Timing gears are mounted on precision machined shaft splines
    • Assures secure non-slip rotor timing even under surge conditions or high torque start-up.

Efficient

Efficient

 N/A
  • Helical timing gears, precision machined from alloy steel forgings
    • Guarantees quiet and smooth mechanical operation at all speeds.
  • Noise Reduction
    • Extra cylinder mass and progressive porting aid in reducing noise.
  • Vertical or horizontal mounting configuration with each blower
    • Provides greater flexibility for installing into any new or existing system.

Flex-Mount™ Design Provides Maximum Installation Versatility

Flex-Mount™ Design Provides Maximum Installation Versatility

 N/A
  • Flex-Mount™ Design and available porting connectors provide installation flexibility.
  • Assures interchangeability of existing installed DuroFlow® models or compatibility as replacement for most competitive models.
  • Reduces inventory requirements due to machine flexibility.

Genuine Gardner Denver™ Parts and Lubricants

Genuine Gardner Denver™ Parts and Lubricants

 N/A
  • Maintain the Gardner Denver™ performance advantage and reliability with Genuine GD Replacement Parts.
  • Protect your Gardner Denver™ investment with AEON® PD, the only lubricant specially formulated for all blowers in any environment.
    • Now available:
      • AEON® PD-XD (eXtreme Duty)
      • Designed specifically for high ambient and high discharge temperature applications.
    • Also available:
      • AEON® PD (standard applications)
      • AEON® PD-FG (Food Grade)

Quality Promise

Quality Promise

 N/A
  • Gardner Denver™ industrial blowers are manufactured under rigid ISO 9001 quality standards.
  • All models are thoroughly tested to meet the highest performance standards for unequaled service life under the most severe operating conditions.

Additional Information

Additional Information

 N/A Experience Proven Results with Gardner Denver™ - the Leader in Durability, Reliability and Efficiency
Reman (re¯ man´) n. A Gardner Denver™ positive displacement blower expertly assembled from genuine remanufactured and new parts
  • Must pass a slip test and a full-load, hot run test before shipment
  • Standard new product warranty included
  • The final word when repair or replacement is required

Note

Note

 N/A Performance based on inlet air at standard temperature of 68 ºF, an ambient pressure of 14.7 psia and 36% relative humidity.
For performance at non-standard conditions, contact your authorized Gardner Denver™ representative.