Item # 812, 4500 Series Model 812 Positive Displacement Blower with Vacuum Pump On Energy Machinery, Inc.

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All Categories > Blowers & Vacuum Pumps > 4500 Series Positive Displacement Blowers with Vacuum Pump > Item # 812


	Item # 812, 4500 Series Model 812 Positive Displacement Blower with Vacuum Pump
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Setting the Industry Standard

Gardner Denver™’s 4500 Series of rotary positive displacement lobe blowers and vacuum pumps are the result of more than seventy years experience in the design, manufacture and support of superior industrial equipment.

4500 Series Positive Displacement Blowers with Vacuum Pump

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4500 Series Positive Displacement Blowers with Vacuum Pump - Vertical Configuration

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Vertical Configurations · Horizontal Configurations · Specifications · Pressure Performance Data · Vacuum Performance Data · 4500 Series Performance Range Delivers · Industry/Applications · Additional Information · 4500 Series Design Features · Rugged Construction · The 4500 Series Incorporates Simplified Timing · Noise Reduction · Lubrication · Bearings · Why Choose the Gardner Denver™ Family of Blowers and Vacuum Pumps? · Superior Local Sales and Service · Protect your Gardner Denver™ Investment with AEON® PD, the Only Lubricant Specially Formulated for All Blowers in Any Environment · Retain your 4500 Series Advantage with Genuine Gardner Denver™ Replacement Parts · Note

Vertical Configurations

Approximate Weight (Vertical)		1050 lb

A (Vertical)		18 3/4 in

B (Vertical)		8 in

C (Vertical)		6 in

D (Vertical)		15 in

E (Vertical)		12 1/2 in

F (Vertical)		16 1/2 in

G (Vertical)		20 1/2 in

H (Vertical)		29 1/8 in

J (Vertical)		22 in

J/2 (Vertical)		11 in

K (Vertical)		8 in

L (Vertical)		18 1/8 in

M (Vertical)		34 in

N (Vertical)		12 in

O (Vertical)		6 3/4 in

P (Vertical)		6 1/2 in

R (Vertical)		1/2 in

S (Vertical)		1 7/8 in

T (Vertical)		1 in

U (Vertical)		7/8 in

X (Vertical)		4 3/8 in

Y (Vertical)		3 1/4 in

Z (Vertical)		7/16 in

Horizontal Configurations

Approximate Weight (Horizontal)		1050 lb

A (Horizontal)		18 3/4 in

B (Horizontal)		8 in

C (Horizontal)		8 in

D (Horizontal)		21 1/2 in

E (Horizontal)		1 1/2 in

F (Horizontal)		12 1/2 in

G (Horizontal)		22 in

H (Horizontal)		23 1/2 in

J (Horizontal)		25 1/4 in

J/2 (Horizontal)		12 5/8 in

K (Horizontal)		8 in

L (Horizontal)		18 1/8 in

M (Horizontal)		34 in

N (Horizontal)		12 in

O (Horizontal)		6 3/4 in

P (Horizontal)		6 1/2 in

R (Horizontal)		1/2 in

S (Horizontal)		1 7/8 in

T (Horizontal)		1 in

U (Horizontal)		7/8 in

V (Horizontal)		4 in

X (Horizontal)		5 1/4 in

Y (Horizontal)		3 1/4 in

Z (Horizontal)		7/16 in

Specifications

Displacement		1.04 ft³/rev

Industry Standards/Certifications		Compressed Air and Gas Institute (CAGI) Energy Star Partner ISO 9001:2008

Series		4500

Brands		Gardner Denver™

Pressure Performance Data

Speed for Pressure Performance		1170 rpm 1460 rpm 1770 rpm 1910 rpm 2100 rpm

Airflow at 6 psi Pressure and 1170 rpm Speed		957 ft³/min 33.2 bhp

Airflow at 6 psi Pressure and 1460 rpm Speed		1259 ft³/min 42.4 bhp

Airflow at 6 psi Pressure and 1770 rpm Speed		1581 ft³/min 52.9 bhp

Airflow at 6 psi Pressure and 1910 rpm Speed		1727 ft³/min 57.9 bhp

Airflow at 6 psi Pressure and 2100 rpm Speed		1924 ft³/min 65.0 bhp

Airflow at 8 psi Pressure and 1170 rpm Speed		917 ft³/min 43.8 bhp

Airflow at 8 psi Pressure and 1460 rpm Speed		1218 ft³/min 55.6 bhp

Airflow at 8 psi Pressure and 1770 rpm Speed		1541 ft³/min 68.9 bhp

Airflow at 8 psi Pressure and 1910 rpm Speed		1686 ft³/min 75.2 bhp

Airflow at 8 psi Pressure and 2100 rpm Speed		1884 ft³/min 84.1 bhp

Airflow at 10 psi Pressure and 1170 rpm Speed		882 ft³/min 54.4 bhp

Airflow at 10 psi Pressure and 1460 rpm Speed		1183 ft³/min 68.9 bhp

Airflow at 10 psi Pressure and 1770 rpm Speed		1505 ft³/min 85.0 bhp

Airflow at 10 psi Pressure and 1910 rpm Speed		1651 ft³/min

Airflow at 10 psi Pressure and 2100 rpm Speed		1849 ft³/min 103.1 bhp

Airflow at 12 psi Pressure and 1170 rpm Speed		850 ft³/min 65.0 bhp

Airflow at 12 psi Pressure and 1460 rpm Speed		1151 ft³/min 82.1 bhp

Airflow at 12 psi Pressure and 1770 rpm Speed		1473 ft³/min 101.0 bhp

Airflow at 12 psi Pressure and 1910 rpm Speed		1619 ft³/min 109.9 bhp

Airflow at 12 psi Pressure and 2100 rpm Speed		1817 ft³/min 122.2 bhp

Airflow at 15 psi Pressure and 1170 rpm Speed		806 ft³/min 80.9 bhp

Airflow at 15 psi Pressure and 1460 rpm Speed		1107 ft³/min 102.0 bhp

Airflow at 15 psi Pressure and 1770 rpm Speed		1430 ft³/min 125.1 bhp

Airflow at 15 psi Pressure and 1910 rpm Speed		1575 ft³/min 135.9 bhp

Airflow at 15 psi Pressure and 2100 rpm Speed		1773 ft³/min 150.7 bhp

Vacuum Performance Data

Speed for Vacuum Performance		1170 rpm 1460 rpm 1770 rpm 1910 rpm 2100 rpm

Airflow at 8 inHg Vacuum and 1170 rpm Speed		971 ft³/min 21.8 bhp

Airflow at 8 inHg Vacuum and 1460 rpm Speed		1273 ft³/min 28.0 bhp

Airflow at 8 inHg Vacuum and 1770 rpm Speed		1595 ft³/min 35.0 bhp

Airflow at 8 inHg Vacuum and 1910 rpm Speed		1741 ft³/min 38.4 bhp

Airflow at 8 inHg Vacuum and 2100 rpm Speed		1938 ft³/min 43.2 bhp

Airflow at 10 inHg Vacuum and 1170 rpm Speed		929 ft³/min 27.0 bhp

Airflow at 10 inHg Vacuum and 1460 rpm Speed		1230 ft³/min 34.3 bhp

Airflow at 10 inHg Vacuum and 1770 rpm Speed		1553 ft³/min 42.6 bhp

Airflow at 10 inHg Vacuum and 1910 rpm Speed		1698 ft³/min 46.5 bhp

Airflow at 10 inHg Vacuum and 2100 rpm Speed		1896 ft³/min 52.0 bhp

Airflow at 12 inHg Vacuum and 1170 rpm Speed		884 ft³/min 32.1 bhp

Airflow at 12 inHg Vacuum and 1460 rpm Speed		1185 ft³/min 40.6 bhp

Airflow at 12 inHg Vacuum and 1770 rpm Speed		1508 ft³/min 50.1 bhp

Airflow at 12 inHg Vacuum and 1910 rpm Speed		1654 ft³/min 54.6 bhp

Airflow at 12 inHg Vacuum and 2100 rpm Speed		1851 ft³/min 60.9 bhp

Airflow at 15 inHg Vacuum and 1170 rpm Speed		809 ft³/min 39.8 bhp

Airflow at 15 inHg Vacuum and 1460 rpm Speed		1111 ft³/min 50.1 bhp

Airflow at 15 inHg Vacuum and 1770 rpm Speed		1433 ft³/min 61.5 bhp

Airflow at 15 inHg Vacuum and 1910 rpm Speed		1579 ft³/min 66.8 bhp

Airflow at 15 inHg Vacuum and 2100 rpm Speed		1776 ft³/min 74.1 bhp

Airflow at 16 inHg Vacuum and 1460 rpm Speed		1082 ft³/min 53.3 bhp

Airflow at 16 inHg Vacuum and 1770 rpm Speed		1405 ft³/min 65.3 bhp

Airflow at 16 inHg Vacuum and 1910 rpm Speed		1550 ft³/min 70.8 bhp

Airflow at 16 inHg Vacuum and 2100 rpm Speed		1748 ft³/min 78.5 bhp

4500 Series Performance Range Delivers

Pressure

Up to 15 psig

Vacuum

Up to ≥ 16 Hg

Discharge Temperatures¹

Up to 325 ºF

4500 Series Performance Range Delivers

Continuous duty service.
Mechanical seals are available for gas service applications.

¹ Short case units to 360 ºF

Industry/Applications

Industry		Aquaculture Cement and Lime Chemical Coal Bed/Landfill Dairy Dry Bulk Hauling Environmental Industrial Milling and Baking Oil and Gas Power Generation Process Gas Pulp and Paper Resin and Plastic Services Soil Remediation 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 Oil and Gas Industry		Gas Collection and Sparging

Application for Power Generation Industry		Fly Ash Conveying and Aeration

Application for Process Gas Industry		Gas Boosting

Application for Pulp and Paper Industry		Chip Conveying and Process Vacuum

Application for Resin and Plastic Industry		Processing and Conveying

Application for Soil Remediation Industry		Vacuum Extraction and Sparging

Application for Vacuum Excavation Industry		Potholing and Slurry Recovery

Application for Wastewater Industry		Aeration and Backwashing

Note for Industry and Application		The table illustrates industries which depend upon the 4500 Series to deliver clean, oil-free air to a wide range of global applications.

Additional Information

The 4500 Series cycle
With every rotation of the blower drive shaft, two lobe impellers turn in opposite directions transferring a constant volume of air or gas from inlet to discharge.

4500 Series Design Features

Rated for continuous duty in all industrial applications.
Provides longer life, simplified maintenance and reduced service intervals.
Permits higher speeds and performance ratings.

Rugged Construction

Compact, heavy-duty, and produced from high strength materials.
Advanced case design with increased vent areas.
The impeller case is precision machined from a single cast of high tensile iron and ribbed externally to prevent distortion.
Ductile iron impellers equipped with one-piece alloy steel shafts.
Equipped with bearings designed for heavy-duty applications and durability.

The 4500 Series Incorporates Simplified Timing

Simple and precise timing gears maintain proper clearance between the impellers.
Grip rings replace conventional timing hubs and guarantee the timing gears are mounted square and concentric to the shaft, resulting in minimum gear noise and wear.
Located between the gear and the shaft, grip rings are sets of two complementary wedge section rings.
Grips rings expand against the bore of the gear and contract on the shaft, ensuring an immovable friction fit.

Noise Reduction

Elliptical shaped inlet port minimizes inrush air noise.
An outlet port permits gradual release of downstream air and noise.
These ports significantly reduce air noise, minimize mechanical loading, and control vibration.

Lubrication

Timing gears and anti-friction bearings utilize abundant, dual-splash lubrication.
Dual-splash lubrication eliminates the need for the customary pump, sump and vulnerable external tubing.
Visual oil level indicators are located at both ends.

Bearings

Anti-friction bearings are locked against shoulders on both impeller shafts at gear end.
These bearings maintain factory-set clearances between head-plates and impellers.
Bearings are sized so the drive shaft may be direct or belt driven.

Why Choose the Gardner Denver™ Family of Blowers and Vacuum Pumps?

Backed by one of the largest distributor networks in the industry.
Every 4500 Series blower/vacuum pump is built under rigid ISO 9001:2008 quality standards.
Each machine is individually tested to meet rigorous performance specifications.
Requested by leading Original Equipment Manufacturers (OEMs) worldwide for a wide range of applications.
Every 4500 Series blower/vacuum pump is covered by a warranty of 18 months from the date of shipment or 12 months from the date of installation, whichever occurs first.

Superior Local Sales and Service

Extensive network of authorized Gardner Denver™ distributors.
Offering the most convenient local sales and service support in the industry.
Factory trained professionals are experts in blower/vacuum pump technology.
These professionals provide system installation guidance, troubleshooting and optimization recommendations for new or existing applications.

Protect your Gardner Denver™ Investment with AEON® PD, the Only Lubricant Specially Formulated for All Blowers in Any Environment

100% synthetic for matchless service life
AEON® PD retains its superior lubricating properties a minimum of four times longer than a premium grade mineral oil at most operating conditions
Eliminates seasonal oil viscosity grade changes
Superior lubrication in severe, high temperature applications
Available from your local authorized Gardner Denver™ distributor in convenient sizes to meet your needs
Food grade lubricant available

Retain your 4500 Series Advantage with Genuine Gardner Denver™ Replacement Parts

Gardner Denver™ guarantees to supply the proper parts for your specific blower every time
Replacement parts incorporate the most recent design upgrades
All parts meet Gardner Denver™ original manufacturing specifications and tolerances for guaranteed fit and function
Pre-packaged overhaul kits with detailed service manuals are available from your local authorized distributor

Note

For 4500 Series Pressure Performance Data: Dark shaded areas are subject to temperature and drive limitations and must be referred to PD Blower Customer Service for proper application. Capacities and horsepower based on standard air at inlet.

MORE IMAGES


	· 4500 Series Positive Displacement Blowers with Vacuum Pump - Horizontal Configuration

	· 4500 Series Positive Displacement Blowers with Vacuum Pump - 2

	· 4500 Series Positive Displacement Blowers with Vacuum Pump - 3

	· 4500 Series Positive Displacement Blowers with Vacuum Pump - 4

	· 4500 Series Positive Displacement Blowers with Vacuum Pump - 5

	· 4500 Series Positive Displacement Blowers with Vacuum Pump - 6

	· 4500 Series Positive Displacement Blowers with Vacuum Pump - 7

	· 4500 Series Positive Displacement Blowers with Vacuum Pump - 8

	· 4500 Series Positive Displacement Blowers with Vacuum Pump - 9

	· 4500 Series Positive Displacement Blowers with Vacuum Pump - 10

	· 4500 Series Positive Displacement Blowers with Vacuum Pump - 11

	· 4500 Series Positive Displacement Blowers with Vacuum Pump - 12

	· Industry Standards/Certifications for 4500 Series Positive Displacement Blowers with Vacuum Pump

DOWNLOADS


		4500 Series Positive Displacement Blowers with Vacuum Pump - Pressure and Vacuum Performance Data (PDF, 51KB)

Item # 812, 4500 Series Model 812 Positive Displacement Blower with Vacuum Pump

Approximate Weight (Vertical)

A (Vertical)

B (Vertical)

C (Vertical)

D (Vertical)

E (Vertical)

F (Vertical)

G (Vertical)

H (Vertical)

J (Vertical)

J/2 (Vertical)

K (Vertical)

L (Vertical)

M (Vertical)

N (Vertical)

O (Vertical)

P (Vertical)

R (Vertical)

S (Vertical)

T (Vertical)

U (Vertical)

X (Vertical)

Y (Vertical)

Z (Vertical)

Approximate Weight (Horizontal)

A (Horizontal)

B (Horizontal)

C (Horizontal)

D (Horizontal)

E (Horizontal)

F (Horizontal)

G (Horizontal)

H (Horizontal)

J (Horizontal)

J/2 (Horizontal)

K (Horizontal)

L (Horizontal)

M (Horizontal)

N (Horizontal)

O (Horizontal)

P (Horizontal)

R (Horizontal)

S (Horizontal)

T (Horizontal)

U (Horizontal)

V (Horizontal)

X (Horizontal)

Y (Horizontal)

Z (Horizontal)

Displacement

Industry Standards/Certifications

Series

Brands

Speed for Pressure Performance

Airflow at 6 psi Pressure and 1170 rpm Speed

Airflow at 6 psi Pressure and 1460 rpm Speed

Airflow at 6 psi Pressure and 1770 rpm Speed

Airflow at 6 psi Pressure and 1910 rpm Speed

Airflow at 6 psi Pressure and 2100 rpm Speed

Airflow at 8 psi Pressure and 1170 rpm Speed

Airflow at 8 psi Pressure and 1460 rpm Speed

Airflow at 8 psi Pressure and 1770 rpm Speed

Airflow at 8 psi Pressure and 1910 rpm Speed

Airflow at 8 psi Pressure and 2100 rpm Speed

Airflow at 10 psi Pressure and 1170 rpm Speed

Airflow at 10 psi Pressure and 1460 rpm Speed

Airflow at 10 psi Pressure and 1770 rpm Speed

Airflow at 10 psi Pressure and 1910 rpm Speed

Airflow at 10 psi Pressure and 2100 rpm Speed

Airflow at 12 psi Pressure and 1170 rpm Speed

Airflow at 12 psi Pressure and 1460 rpm Speed

Airflow at 12 psi Pressure and 1770 rpm Speed

Airflow at 12 psi Pressure and 1910 rpm Speed

Airflow at 12 psi Pressure and 2100 rpm Speed

Airflow at 15 psi Pressure and 1170 rpm Speed

Airflow at 15 psi Pressure and 1460 rpm Speed

Airflow at 15 psi Pressure and 1770 rpm Speed

Airflow at 15 psi Pressure and 1910 rpm Speed

Airflow at 15 psi Pressure and 2100 rpm Speed

Discharge Temperatures¹