Energy Machinery, Inc. - New England's Compressed Air Specialists
Energy Machinery, Inc.
10 Reservoir Park Drive
Rockland, MA 02370
Toll Free: 1-800-643-4330
Phone: 781-871-6220
Fax: 781-878-7085
Email: info@energymachinery.com
Website: www.energymachinery.com
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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

 90 lb

Port Size Connection

 2.5 in

Connection Type

 NPT

Shaft Diameter

 1.00 in

Mounting Bolt Hole Diameter

 0.56 in

A

 17.20 in

B

 11.62 in

C

 8.91 in

D

 2.06 in

E

 8.82 in

F

 12.50 in

G

 4.00 in

H

 9.00 in

J

 4.00 in

K

 8.06 in

L

 4.50 in

M

 6.56 in

N

 8.36 in

P

 1.50 in

Q

 4.41 in

R

 6.25 in

S

 2.00 in

T

 4.50 in

Pressure Performance Data

Speed for Pressure Performance

 2950 rpm3550 rpm4000 rpm

Airflow at 4 psig Pressure and 2950 rpm Speed

 2.5 bhp94 ft³/min

Airflow at 4 psig Pressure and 3550 rpm Speed

 3.1 bhp121 ft³/min

Airflow at 4 psig Pressure and 4000 rpm Speed

 3.6 bhp141 ft³/min

Airflow at 6 psig Pressure and 2950 rpm Speed

 3.7 bhp85 ft³/min

Airflow at 6 psig Pressure and 3550 rpm Speed

 4.5 bhp112 ft³/min

Airflow at 6 psig Pressure and 4000 rpm Speed

 5.2 bhp133 ft³/min

Airflow at 8 psig Pressure and 2950 rpm Speed

 4.8 bhp78 ft³/min

Airflow at 8 psig Pressure and 3550 rpm Speed

 5.9 bhp105 ft³/min

Airflow at 8 psig Pressure and 4000 rpm Speed

 6.8 bhp125 ft³/min

Airflow at 10 psig Pressure and 2950 rpm Speed

 6.0 bhp72 ft³/min

Airflow at 10 psig Pressure and 3550 rpm Speed

 7.3 bhp99 ft³/min

Airflow at 10 psig Pressure and 4000 rpm Speed

 8.3 bhp119 ft³/min

Airflow at 12 psig Pressure and 2950 rpm Speed

 7.1 bhp66 ft³/min

Airflow at 12 psig Pressure and 3550 rpm Speed

 8.7 bhp93 ft³/min

Airflow at 12 psig Pressure and 4000 rpm Speed

 9.9 bhp113 ft³/min

Airflow at 15 psig Pressure and 3550 rpm Speed

 10.8 bhp85 ft³/min

Airflow at 15 psig Pressure and 4000 rpm Speed

 12.3 bhp105 ft³/min

Vacuum Performance Data

Speed for Vacuum Performance

 2950 rpm3550 rpm4000 rpm

Airflow at 4 inHg Vacuum and 2950 rpm Speed

 1.3 bhp104 ft³/min

Airflow at 4 inHg Vacuum and 3550 rpm Speed

 1.7 bhp131 ft³/min

Airflow at 4 inHg Vacuum and 4000 rpm Speed

 2.0 bhp151 ft³/min

Airflow at 6 inHg Vacuum and 2950 rpm Speed

 1.9 bhp96 ft³/min

Airflow at 6 inHg Vacuum and 3550 rpm Speed

 2.4 bhp123 ft³/min

Airflow at 6 inHg Vacuum and 4000 rpm Speed

 2.8 bhp143 ft³/min

Airflow at 8 inHg Vacuum and 2950 rpm Speed

 2.5 bhp88 ft³/min

Airflow at 8 inHg Vacuum and 3550 rpm Speed

 3.1 bhp115 ft³/min

Airflow at 8 inHg Vacuum and 4000 rpm Speed

 135 ft³/min3.6 bhp

Airflow at 10 inHg Vacuum and 2950 rpm Speed

 3.0 bhp80 ft³/min

Airflow at 10 inHg Vacuum and 3550 rpm Speed

 3.8 bhp107 ft³/min

Airflow at 10 inHg Vacuum and 4000 rpm Speed

 4.4 bhp127 ft³/min

Airflow at 12 inHg Vacuum and 4000 rpm Speed

 119 ft³/min5.1 bhp

Airflow at 12 inHg Vacuum and 2950 rpm Speed

 3.6 bhp72 ft³/min

Airflow at 12 inHg Vacuum and 3550 rpm Speed

 4.5 bhp99 ft³/min

Airflow at 14 inHg Vacuum and 3550 rpm Speed

 5.1 bhp90 ft³/min

Airflow at 14 inHg Vacuum and 4000 rpm Speed

 5.9 bhp100 ft³/min

Airflow at 15 inHg Vacuum and 4000 rpm Speed

 6.3 bhp106 ft³/min

Reach Higher with the DuroFlow® 45 Series

Cylinder Design

 One Piece Cylinder

Cylinder Design for Competitor A

 Two Piece Cylinder

Cylinder Design for Competitor B

 One Piece Cylinder

Cylinder Rib Design

 Integral Cylinder Ribs

Cylinder Rib Design for Competitor A

 Minimal Cylinder Ribs

Cylinder Rib Design for Competitor B

 Minimal Cylinder Ribs

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 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

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 Cylinder Design

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

DuroFlow® Advantages for Cylinder Rib Design

 Improves heat dissipation Reduces torsion on cylinder

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 Type

 Quiet and smooth mechanical operation Reduces backlash

DuroFlow® Advantages for Gear Attachments

 Eliminates timing loss and improves reliability

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 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
  • 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
  • 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
  • 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.

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

 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.