BENDIX BW2564 User Manual
compressors
BENDIX® BA-922®AIR COMPRESSOR
High air output for demanding applications,
from a smaller, lighter air compressor.
Experience Counts
For generations, the Bendix®name has meant quality, reliability
and durability when it comes to your vehicle’s air charging
system. With commercial vehicles becoming more sophisticated,
and compressed air requirements increasing, Bendix offers
this next generation high-performing, energy-saving compressor
option.
High Air Delivery
The Bendix®BA-922®compressor provides maximum air delivery
even at low speeds. It is a high-output, two-cylinder compressor
that supplies 32 cfm (cubic feet per minute) displacement at
1,250 rpm (revolutions per minute). This compressor’s ability to
recharge the system quickly and efficiently at low speeds makes
it ideal for more demanding brake system applications, such as
transit coaches, bulk haulers, double and triple combination
vehicles, refuse haulers, and construction vehicles.
High Thru-Drive
Unlike other high-air-output compressors, the Bendix
®
BA-922®compressor’s standard design is capable of powering a 25 horsepower accessory at any speed.
Standard North American
Unloader Valving
The powerful Bendix
®
BA-922® compressor works within the
standard North American brake systems by incorporating
integral unloader valving in the cylinder head, which eliminates
the special valve requirements normally associated with twocylinder, high-output compressors.
Effective Cooling Systems
The Bendix®BA-922®compressor’s cylinder head provides lower
discharge air temperatures by incorporating highly effective
cooling surfaces, thereby reducing carbon formation and resulting in higher air quality. Minimizing discharge temperature
increases the service life of downstream air brake components,
such as the air dryer and valves.
Compact, Lightweight Design
The highly efficient Bendix® BA-922®two-cylinder compressor
replaces earlier four-cylinder designs. While its volume output is
similar to the Bendix
®
Tu-Flo®1400 compressor, this smaller and
lighter compressor is 4
1
/2 inches shorter and weighs 33% less due
to its simpler design and extensive use of aluminum components. The Bendix
®
BA-922® compressor’s compact size enables
it to meet OE installation constraints in tight engine compartments without compromising its high-air-output capability.
®
Requirements
As the source of energy for a vehicle’s air brake system and
accessories, the Bendix
®
BA-922®compressor is driven by
the vehicle’s engine and utilizes the vehicle’s lubrication
and cooling systems. Because of these shared systems,
regular vehicle maintenance, such as oil changes and
coolant flushing, is critical. This vehicle maintenance, along
with regular air brake system and air accessory maintenance, keeps the compressor running efficiently.
Bendix®Quality and Service Guaranteed
Bendix stands behind every compressor with complete
warranty protection and a veteran technical support team
to help you troubleshoot and resolve any air brake
system challenges. From sales to service, and engineering
to production, the Bendix team has years of practical
experience hard at work for you.
compressors
BENDIX® BA-922®AIR COMPRESSOR
The Bendix®BA-922®air compressor is one element of the complete line of Bendix air brake components which can
help improve vehicle performance, increase efficiency and reduce your overall operating costs. The Bendix
®
BA-922
®
compressor is currently available on several engine platforms.
To find out more, talk to your Bendix representative, call 1-800-AIR-BRAKE (1-800-247-2725), or visit www.bendix.com today.
Bendix Commercial Vehicle Systems LLC • 901 Cleveland Street • Elyria, OH 44035 • 1-800 AIR-BRAKE (1-800-247-2725)
BW2564 ©2006 Bendix Commercial Vehicle Systems LLC, a member of the Knorr-Bremse Group • 02/06 • All Rights Reserved • Printed in U.S.A.
The Bendix®BA-922® Air Compressor
Typical Weight
2
64 lbs (29 kg.)
Number of cylinders 2
Swept air displacement @ 1,250 rpm 31.6 cfm
Maximum recommended rpm 3,000
Loaded HP required @ 1,250 rpm 6 hp
Unloaded HP required @ 1,250 rpm 2 hp
Thru-drive capacity
2
25 hp
Size (H x W x L) in inches
3
13.2 x 8.0 x 12.6
Compressor inlet maximum turbocharge boost (psig) 0 psig (Naturally Aspirated)
Bendix®BA-922®Compressor Specifications
1
High air output
Effective cooling system
Simple, two-cylinder
configuration
Smaller size
Lighter weight
Provides ample air for more
demanding applications
Effective cylinder head cooling results
in very low discharge air temperature
Improves durability and reliability
while reducing maintenance costs
Compact size to meet tight
OE installation constraints
Improves vehicle fuel economy
and performance
FEATURES BENEFITS
1
Reference BW-121-A for the complete list of Bendix®BA-922®Compressor
application requirements to ensure optimum operation.
2
Indicates an application specific feature.
3
Measurements are taken the following way: Height, crankshaft centerline to top
of cylinder head; Width, either widest section of cylinder head or crankcase belly;
Length, between flange faces.
Note: All references to RPM are for the compressor operation.
Applications
• Bulk haulers
• Double & triple combination vehicles
• Refuse haulers
• Cement mixers
• Off-highway vehicles
• Transit coaches
• Central tire inflation systems
BA-922
®
Air Flow
(0 psig inlet pressure; 120 psig discharge pressure)
0
10
20
30
40
600 1200 1800 2400 3000
Compressor Speed (rpm)
Air Flow (CFM)
BA-922
®
100
200
300
400
600 1200 1800 2400 3000
Compressor Speed (rpm)
Discharge Air Temperature
(degrees in Fahrenheit)
Discharge Air Temperature
(0 psig inlet pressure; 120 psig discharge pressure)
Bendix compressors provide the power that keeps you
on the road, and the value that keeps you coming back.
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