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

 220 lb

Port Size Connection

 4 in

Connection Type

 NPT

Shaft Diameter

 1.44 in

Mounting Bolt Hole Diameter

 0.69 in

A

 21.51 in

B

 17.54 in

C

 11.88 in

D

 4.93 in

E

 9.75 in

F

 17.50 in

G

 6.87 in

H

 11.50 in

J

 7.00 in

K

 11.35 in

L

 5.62 in

M

 9.10 in

N

 12.55 in

P

 2.25 in

Q

 4.87 in

R

 8.75 in

S

 3.50 in

T

 5.75 in

U

 3.44 in

V

 3.50 in

Pressure Performance Data

Speed for Pressure Performance

 1750 rpm2950 rpm4000 rpm

Airflow at 4 psig Pressure and 2950 rpm Speed

 10.5 bhp415 ft³/min

Airflow at 4 psig Pressure and 4000 rpm Speed

 16.3 bhp592 ft³/min

Airflow at 6 psig Pressure and 2950 rpm Speed

 14.8 bhp397 ft³/min

Airflow at 6 psig Pressure and 4000 rpm Speed

 22.2 bhp574 ft³/min

Airflow at 8 psig Pressure and 2950 rpm Speed

 19.1 bhp382 ft³/min

Airflow at 8 psig Pressure and 4000 rpm Speed

 28.0 bhp559 ft³/min

Airflow at 10 psig Pressure and 2950 rpm Speed

 23.5 bhp369 ft³/min

Airflow at 10 psig Pressure and 4000 rpm Speed

 33.9 bhp545 ft³/min

Airflow at 12 psig Pressure and 2950 rpm Speed

 27.8 bhp357 ft³/min

Airflow at 12 psig Pressure and 4000 rpm Speed

 39.8 bhp533 ft³/min

Airflow at 15 psig Pressure and 2950 rpm Speed

 34.3 bhp340 ft³/min

Airflow at 15 psig Pressure and 4000 rpm Speed

 48.5 bhp517 ft³/min

Airflow at 4 psig Pressure and 1750 rpm Speed

 5.5 bhp214 ft³/min

Airflow at 6 psig Pressure and 1750 rpm Speed

 8.1 bhp196 ft³/min

Airflow at 8 psig Pressure and 1750 rpm Speed

 10.6 bhp181 ft³/min

Airflow at 10 psig Pressure and 1750 rpm Speed

 13.2 bhp167 ft³/min

Airflow at 12 psig Pressure and 1750 rpm Speed

 15.8 bhp155 ft³/min

Vacuum Performance Data

Speed for Vacuum Performance

 1750 rpm2950 rpm4000 rpm

Airflow at 4 inHg Vacuum and 2950 rpm Speed

 5.8 bhp435 ft³/min

Airflow at 4 inHg Vacuum and 4000 rpm Speed

 9.7 bhp611 ft³/min

Airflow at 6 inHg Vacuum and 2950 rpm Speed

 7.8 bhp418 ft³/min

Airflow at 6 inHg Vacuum and 4000 rpm Speed

 12.3 bhp595 ft³/min

Airflow at 8 inHg Vacuum and 2950 rpm Speed

 9.8 bhp402 ft³/min

Airflow at 8 inHg Vacuum and 4000 rpm Speed

 579 ft³/min14.9 bhp

Airflow at 10 inHg Vacuum and 2950 rpm Speed

 11.8 bhp386 ft³/min

Airflow at 10 inHg Vacuum and 4000 rpm Speed

 17.5 bhp563 ft³/min

Airflow at 12 inHg Vacuum and 4000 rpm Speed

 546 ft³/min20.0 bhp

Airflow at 12 inHg Vacuum and 2950 rpm Speed

 13.8 bhp369 ft³/min

Airflow at 14 inHg Vacuum and 2950 rpm Speed

 15.8 bhp351 ft³/min

Airflow at 14 inHg Vacuum and 4000 rpm Speed

 22.6 bhp527 ft³/min

Airflow at 15 inHg Vacuum and 2950 rpm Speed

 16.8 bhp341 ft³/min

Airflow at 15 inHg Vacuum and 4000 rpm Speed

 23.9 bhp517 ft³/min

Airflow at 4 inHg Vacuum and 1750 rpm Speed

 2.9 bhp233 ft³/min

Airflow at 6 inHg Vacuum and 1750 rpm Speed

 4.1 bhp217 ft³/min

Airflow at 8 inHg Vacuum and 1750 rpm Speed

 5.3 bhp201 ft³/min

Airflow at 10 inHg Vacuum and 1750 rpm Speed

 6.6 bhp185 ft³/min

Airflow at 12 inHg Vacuum and 1750 rpm Speed

 7.8 bhp168 ft³/min

Airflow at 16 inHg Vacuum and 2950 rpm Speed

 17.8 bhp330 ft³/min

Airflow at 16 inHg Vacuum and 4000 rpm Speed

 507 ft³/min25.2 bhp

Reach Higher with the DuroFlow® 45 Series

Model

 5 sizes

Models for Competitor A

 4 sizes

Models for Competitor B

 4 sizes

Cylinder Design

 One Piece Cylinder

Cylinder Design for Competitor A

 Two Piece Cylinder

Cylinder Design for Competitor B

 One Piece Cylinder

Drive End Bearings

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

Drive End Bearings for Competitor A

 Single Row Ball (Non-Drive Shaft)

Drive End Bearings for Competitor B

 Cylindrical Roller

Dual Splash Lubrication

 Common Oil Sump

Dual Splash Lubrication for Competitor A

 Separate Oil Reservoirs

Dual Splash Lubrication for Competitor B

 Separate Oil Reservoirs

Gear End Bearings

 Roller Bearing

Gear End Bearings for Competitor A

 Single Row Ball

Gear End Bearings for Competitor B

 Double Row Ball

Gear Type

 Helical

Gear Type for Competitor A

 Straight Spur

Gear Type for Competitor B

 Helical

Gear Attachments

 Spline Gear Fit

Gear Attachments for Competitor A

 Taper Gear Fit

Gear Attachments for Competitor B

 Keyed Interference Fit

Impeller Tips

 Serrated

Impeller Tips for Competitor A

 Radius

Impeller Tips for Competitor B

 Radius

Main Air Seal

 Piston Ring

Main Air Seal for Competitor A

 Piston Ring

Main Air Seal for Competitor B

 Piston Ring

Main Oil Seal

 Two Piston Ring Seals with Slinger and Groove

Main Oil Seal for Competitor A

 Lip Seal

Main Oil Seal for Competitor B

 Lip Seal

Shaft Seal and Seal Surface

 Viton Lip Seal with O-Rings Wear Sleeve

Shaft Seal and Seal Surface for Competitor A

 Viton Lip Seal on Shaft

Shaft Seal and Seal Surface for Competitor B

 Lip Seal on Shaft

DuroFlow® Advantages for Models

 Greater flow capacity

DuroFlow® Advantages for Cylinder Design

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

DuroFlow® Advantages for Drive End Bearings

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

DuroFlow® Advantages for Dual Splash Lubrication

 Simpler maintenance

DuroFlow® Advantages for Gear End Bearings

 Increases bearing life

DuroFlow® Advantages for Gear Type

 Quiet and smooth mechanical operation Reduces backlash

DuroFlow® Advantages for Gear Attachments

 Eliminates timing loss and improves reliability

DuroFlow® Advantages for Impeller Tips

 Cooler operating temperatures Improves performance Reduces power consumption

DuroFlow® Advantages for Main Air Seal

 Less wear Longer seal life

DuroFlow® Advantages for Main Oil Seal

 Superior oil sealing

DuroFlow® Advantages for Shaft Seal and Seal Surface

 Extended shaft life Improves sealing method

Specifications

Pressure

 Up to 15 psig

Vacuum

 Up to 16 inHg

Airflow

 Up to 4282 ft³/min

Standard Temperature

 68 ºF

Ambient Pressure

 14.7 psia

Relative Humidity

 36 %

Industry Standards/Certifications

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

Brands

 DuroFlow® Gardner Denver™

Applications to Meet Your Industry Needs

Industry

 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

 Aeration

Application for Cement and Lime Industry

 Fluidization and Conveying

Application for Chemical Industry

 Vacuum Processing and Conveying

Application for Dairy Industry

 Automated Milking

Application for Dry Bulk Hauling Industry

 Trailer Unloading and Aeration

Application for Environmental Services Industry

 Sewer Cleaning and Portable Restroom Services

Application for Industrial Industry

 Material Vacuuming

Application for Milling and Baking Industry

 Blending and Conveying

Application for Power Generation Industry

 Fly Ash Conveying and Aeration

Application for Pulp and Paper Industry

 Chip Conveying and Process Vacuum

Application for Resin and Plastic Industry

 Processing and Conveying

Application for Vacuum Excavation Industry

 Potholing and Slurry Recovery

Application for Wastewater Industry

 Aeration and Backwashing

At-A-Glance Features

At-A-Glance Features
  • 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
  • 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
  • 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
  • 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
  • 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
  • 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
  • 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
  • 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
  • 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

 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

 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.