Request Information
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 190 lb

Port Size Connection

 N/A 4 in

Connection Type

 N/A NPT

Shaft Diameter

 N/A 1.44 in

Mounting Bolt Hole Diameter

 N/A 0.69 in

A

 N/A 18.01 in

B

 N/A 17.54 in

C

 N/A 11.88 in

D

 N/A 3.43 in

E

 N/A 9.75 in

F

 N/A 17.50 in

G

 N/A 4.87 in

H

 N/A 11.50 in

J

 N/A 5.00 in

K

 N/A 11.35 in

L

 N/A 5.62 in

M

 N/A 9.10 in

N

 N/A 10.05 in

P

 N/A 2.25 in

Q

 N/A 4.87 in

R

 N/A 8.75 in

S

 N/A 3.50 in

T

 N/A 5.75 in

U

 N/A 2.44 in

V

 N/A 3.00 in

Pressure Performance Data

Speed for Pressure Performance

 N/A 1750 rpm2950 rpm4000 rpm

Airflow at 4 psig Pressure and 2950 rpm Speed

 N/A 7.3 bhp271 ft³/min

Airflow at 4 psig Pressure and 4000 rpm Speed

 N/A 11.6 bhp389 ft³/min

Airflow at 6 psig Pressure and 2950 rpm Speed

 N/A 10.2 bhp258 ft³/min

Airflow at 6 psig Pressure and 4000 rpm Speed

 N/A 15.5 bhp375 ft³/min

Airflow at 8 psig Pressure and 2950 rpm Speed

 N/A 13.0 bhp247 ft³/min

Airflow at 8 psig Pressure and 4000 rpm Speed

 N/A 19.4 bhp364 ft³/min

Airflow at 10 psig Pressure and 2950 rpm Speed

 N/A 15.9 bhp237 ft³/min

Airflow at 10 psig Pressure and 4000 rpm Speed

 N/A 23.3 bhp354 ft³/min

Airflow at 12 psig Pressure and 2950 rpm Speed

 N/A 18.8 bhp228 ft³/min

Airflow at 12 psig Pressure and 4000 rpm Speed

 N/A 27.2 bhp345 ft³/min

Airflow at 15 psig Pressure and 2950 rpm Speed

 N/A 23.1 bhp216 ft³/min

Airflow at 15 psig Pressure and 4000 rpm Speed

 N/A 33.1 bhp333 ft³/min

Airflow at 4 psig Pressure and 1750 rpm Speed

 N/A 3.7 bhp137 ft³/min

Airflow at 6 psig Pressure and 1750 rpm Speed

 N/A 5.4 bhp123 ft³/min

Airflow at 8 psig Pressure and 1750 rpm Speed

 N/A 7.2 bhp112 ft³/min

Airflow at 10 psig Pressure and 1750 rpm Speed

 N/A 8.9 bhp102 ft³/min

Airflow at 12 psig Pressure and 1750 rpm Speed

 N/A 10.6 bhp93 ft³/min

Vacuum Performance Data

Speed for Vacuum Performance

 N/A 1750 rpm2950 rpm4000 rpm

Airflow at 4 inHg Vacuum and 2950 rpm Speed

 N/A 4.2 bhp286 ft³/min

Airflow at 4 inHg Vacuum and 4000 rpm Speed

 N/A 7.1 bhp403 ft³/min

Airflow at 6 inHg Vacuum and 2950 rpm Speed

 N/A 5.5 bhp273 ft³/min

Airflow at 6 inHg Vacuum and 4000 rpm Speed

 N/A 8.8 bhp391 ft³/min

Airflow at 8 inHg Vacuum and 2950 rpm Speed

 N/A 6.8 bhp262 ft³/min

Airflow at 8 inHg Vacuum and 4000 rpm Speed

 N/A 379 ft³/min10.5 bhp

Airflow at 10 inHg Vacuum and 2950 rpm Speed

 N/A 8.1 bhp250 ft³/min

Airflow at 10 inHg Vacuum and 4000 rpm Speed

 N/A 12.1 bhp367 ft³/min

Airflow at 12 inHg Vacuum and 4000 rpm Speed

 N/A 355 ft³/min13.8 bhp

Airflow at 12 inHg Vacuum and 2950 rpm Speed

 N/A 9.4 bhp237 ft³/min

Airflow at 14 inHg Vacuum and 2950 rpm Speed

 N/A 10.7 bhp224 ft³/min

Airflow at 14 inHg Vacuum and 4000 rpm Speed

 N/A 15.5 bhp341 ft³/min

Airflow at 15 inHg Vacuum and 4000 rpm Speed

 N/A 16.3 bhp334 ft³/min

Airflow at 4 inHg Vacuum and 1750 rpm Speed

 N/A 2.0 bhp151 ft³/min

Airflow at 6 inHg Vacuum and 1750 rpm Speed

 N/A 2.8 bhp139 ft³/min

Airflow at 8 inHg Vacuum and 1750 rpm Speed

 N/A 3.6 bhp127 ft³/min

Airflow at 10 inHg Vacuum and 1750 rpm Speed

 N/A 4.4 bhp115 ft³/min

Airflow at 12 inHg Vacuum and 1750 rpm Speed

 N/A 5.2 bhp103 ft³/min

Airflow at 16 inHg Vacuum and 4000 rpm Speed

 N/A 326 ft³/min17.1 bhp

Reach Higher with the DuroFlow® 45 Series

Model

 N/A 5 sizes

Models for Competitor A

 N/A 4 sizes

Models for Competitor B

 N/A 4 sizes

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

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 End Bearings

 N/A Roller Bearing

Gear End Bearings for Competitor A

 N/A Single Row Ball

Gear End Bearings for Competitor B

 N/A Double Row Ball

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

Impeller Tips

 N/A Serrated

Impeller Tips for Competitor A

 N/A Radius

Impeller Tips for Competitor B

 N/A Radius

Main Air Seal

 N/A Piston Ring

Main Air Seal for Competitor A

 N/A Piston Ring

Main Air Seal for Competitor B

 N/A Piston Ring

Main Oil Seal

 N/A Two Piston Ring Seals with Slinger and Groove

Main Oil Seal for Competitor A

 N/A Lip Seal

Main Oil Seal for Competitor B

 N/A Lip Seal

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 Models

 N/A Greater flow capacity

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 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 End Bearings

 N/A Increases bearing life

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 Impeller Tips

 N/A Cooler operating temperatures Improves performance Reduces power consumption

DuroFlow® Advantages for Main Air Seal

 N/A Less wear Longer seal life

DuroFlow® Advantages for Main Oil Seal

 N/A Superior oil sealing

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.
  • 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.
  • Advanced oil and air seal designs
    • Piston rings and flinger maximize seal life in continuous, severe duty applications.
    • Provides leak-free operation.
    • O-rings placed under the drive shaft wear sleeve creates better sealing and prolongs life of rotors.
  • 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.
  • Innovative rotor profile with serrated tips
    • Increases blower efficiency and air sealing.
    • Reduces power consumption and cooler operating temperature.
  • 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.

45 Series Design Advantages

45 Series Design Advantages

 N/A
  • Dual Splash Lubrication
    • Reliable splash lubrication at both gear and drive ends for longer product life.
  • Shaft Splines Assure Non-Slip Rotor Timing
    • Helical timing gears are mounted on shaft splines
    • Provides quiet and smooth mechanical operation at all speeds.
  • Improved Design Provides Leak-Free Operation
    • Advanced Oil and Air Seals.
    • Piston rings and flinger maximize seal life in continuous, severe duty applications.
  • Efficient Lubrication
    • Slinger ensures lubricant is distributed to gears and bearings.
  • Oversized Bearings for Added Support and Greater Durability
    • Drive-end double-row angular contact ball bearings fix the rotor position.
    • Gear-end roller bearings support each shaft.

Striving for More

Striving for More

 N/A
  • Solid Rotors Eliminate Potential for Vibration
    • Hollow rotors can become unbalanced due to build-up of ingested material inside the rotor.
  • Single Piece Cylinder Prevents Distortion
    • Heavy-duty reinforced cast iron cylinder retains internal clearances.
    • Provides greater strength and rigidity.
  • Cooler Operating Temperatures
    • Integral ribs improve heat dissipation and improve performance.
  • Durable Rotors and Shafts
    • Machined from a single, high-strength ductile iron casting.
    • Dynamically balanced.
  • Vertical or Horizontal Mounting Configuration
    • Flex-Mount™ design standard with each blower.
    • Flexibility for installing into any new or existing system.
  • Serrated Tips Reduce Power Consumption
    • Innovative rotor profile provides tighter clearances.
    • More air flow with less horsepower .
    • Precision machined with advanced CNC milling technology.

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 Reach Higher with the DuroFlow® 45 Series

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.