BAE-DW Catalog

BAE-DW Catalog
Defining Innovation.
AIRFOIL fans
TYPE BAE SWSI | BAE DWDI
BULLETIN 370
January 2007
BAE SWSI and DWDI Airfoil Fans – Featuring the
E-Series Wheel
This catalog features the new BAE airfoil wheel
design. It includes both the SWSI (single width,
single inlet) and the DWDI (double width, double
inlet) designs. The newly designed airfoil blades offer
higher efficiencies and better sound characteristics
than our previous designs.
Please discuss your particular application with
the Twin City Fan & Blower representative for your
area.
Twin City Fan & Blower has established itself as
a leader in the design and manufacture of quality
air moving equipment and continues to advance by
implementing a philosophy that stresses quality in all
of its operations. Our products are known for their
rugged construction and reliability of operation. Twin
City Fan & Blower offers flexibility in design and construction of fans coupled with superior service before
and after the sale.
Contents
Certification
Certification . . . . . . . . . . . . . . . . . . . . . . . . 2
Introduction. . . . . . . . . . . . . . . . . . . . . . . . . 2
Construction Features . . . . . . . . . . . . . . . . .
3
Arrangements . . . . . . . . . . . . . . . . . . . . . . . 4
Optional Construction . . . . . . . . . . . . . . . . . . 6
Standard Configurations. . . . . . . . . . . . . . . . . 7
Accessories. . . . . . . . . . . . . . . . . . . . . . . . . 8
Maximum RPM, Wheel Weights WR2. . . . . . . . 12
Material Specifications & Weights. . . . . . . . . . 14
Performance Data. . . . . . . . . . . . . . . . . . . . 17
BAV. . . . . . . . . . . . . . . . . . . . . . . . . . . 17
BAE SWSI. . . . . . . . . . . . . . . . . . . . . . . 17
BAE DWDI. . . . . . . . . . . . . . . . . . . . . . . 28
Dimensional Drawings . . . . . . . . . . . . . . . . . 36
Typical Specifications. . . . . . . . . . . . . . . . . . 46
Twin City Fan & Blower certifies
that the Airfoil SWSI and DWDI
fans shown herein are licensed to
bear the AMCA Seal. The ratings
shown are based on tests and
procedures performed in accordance with AMCA Publication
211 and AMCA Publication 311
and comply with the requirements
of the AMCA Certified Ratings
Program.
BAV ratings are shown on pages 17 through 22.
BAE SWSI ratings are shown on pages 17 through 27.
BAE DWDI ratings are shown on pages 28 through 35.
©2007 Twin City Fan Companies, Ltd. All rights reserved throughout the world.
Bulletin illustrations cover the general appearance of Twin City Fan & Blower products at the time of publication
and we reserve the right to make changes in design and construction at any time without notice.
2
Twin City Bulletin 370
Construction Features
Wheel Construction
High efficiency, non-overloading airfoil wheels are
provided on all sizes and arrangements. Wheels shall
have precision spun, flat inlet cones to allow higher
efficiencies over the performance range of the fan.
Aluminum wheels using extruded aluminum blades
are provided as standard on sizes 245 and smaller
and are available as an option on larger units.
The BAE-DW wheels shall have staggered blades
for improved sound characteristics. All hollow blade
wheels shall be continuously welded around all
edges. All wheels shall be statically and dynamically balanced on precision electronic balancers to a
Balance Quality Grade G6.3 per ANSI/AMCA 204 or
better.
Housing Construction
All fan housings are continuously welded to provide
strength and durability for extended service life — a
necessity in all commercial and industrial installations.
All housings are reinforced with rigid bracing to
increase structural integrity. The support angles are
intermittently welded and caulked between welds to
prevent bleed-through corrosion. Precisely positioned
cutoff plates and aerodynamically spun inlet cones
provide high efficiency and smooth airflow through
the fan. The housing construction and dimensions are
exactly the same as our current BAF fan design.
All fans are available in standard discharge configuration (see Bulletin 300, page 8). BAE-SW fans Class
I and II, sizes 270 and smaller in Arrangements 1, 4,
and 9 are field rotatable to any standard discharge
position. To help reduce overall heights, all BAE-DW
fans feature a non-rotatable housing design as standard.
Shaft
Shafts are AISI Grade 1040 or 1045 hot-rolled steel
accurately turned, ground, polished, and ring gauged
for accuracy. Shafts are generously sized for a first
critical speed of at least 1.43 times the maximum
speed for the class.
Bearings
Bearings are heavy duty, grease lubricated, spherical roller or anti-friction ball (BAE-DW bearings are
adapter mounted), self-aligning, pillow block type,
selected for minimum average bearing life (AFBMA
L-50) in excess of 200,000 hours at the maximum
fan RPM.
3
BAE-SW wheel with hollow airfoil blades continuously
welded to the rim and backplate.
BAE-DW wheel with hollow airfoil blades staggered for
improved sound quality.
Mechanical Run Test & Final
Vibration Check
All fans are assembled for a mechanical run test and
final balance prior to shipment. Vibration readings are
taken on both fan bearings in the axial, horizontal,
and vertical directions at the specified speed. Fans
are balanced to 0.15 in./sec. peak or less.
Twin City Bulletin 370
SWSI Arrangements
Arrangement 1
SWSI — Single Width, Single Inlet
Arrangement 1 fan with optional unitary base, horizontal
split housing, shaft and V-belt drive guard.
Extended lube line at
inlet — standard on all
Arrangement 3 fans.
Arrangement 1 fans are usually belt driven. The wheel
is overhung on the shaft, i.e., mounted at the end
of the shaft. The motor can be mounted in any of
the four AMCA standard motor positions, W, X, Y, or
Z. The two fan bearings are mounted on the bearing pedestal, out of the airstream. Arrangement 1
fans are thus recommended for high temperature or
contaminated air applications. Belt driven configurations offer performance flexibility. If the performance
requirements change after the fan has been installed,
it is simple and inexpensive to change the drive.
Arrangement 3
SWSI — Single Width, Single Inlet
Arrangement 3 is available in belt driven only.
Arrangement 3 SWSI has one bearing located in
the airstream. The wheel is mounted between the
bearings and supported by the fan housing, which
makes it a structurally sound, compact, and economical arrangement.
Arrangement 4
SWSI — Single Width, Single Inlet
Arrangement 4 is available in direct drive only. The
fan wheel is mounted directly on the motor shaft with
the motor mounted on a pedestal. An Arrangement
4 design offers low maintenance as there are no
fan bearings, fan shaft or drive parts to maintain.
Arrangement 4 is typically limited to size 365 or
smaller.
Typical Direct Drive Speeds
Direct drive Arrangement 4 with bolted access door and
shaft seal.
60 Hz OPERATION
Synchronous
Full Load
Speed
Speed
3600
3500
1800
1750
1200
1170
900 870
50 Hz OPERATION
Synchronous
Full Load
Speed
Speed
3000
2900
1500
1450
1000 975
750
725
The actual full load speed of the motor can vary slightly depending upon
motor HP and motor design.
Arrangement 8
SWSI — Single Width, Single Inlet
Arrangement 8 fan with
optional coupling.
4
Arrangement 8 is a modified version of Arrangement
1 used for direct drive. The Arrangement 1 bearing
pedestal is extended to accommodate the motor.
A flexible coupling connects the fan and motor
shaft. Refer to the typical direct drive speeds under
Arrangement 4.
Recommended for 250 HP and larger applications.
Twin City Bulletin 370
SWSI Arrangements
Arrangement 9
SWSI — Single Width, Single Inlet
Arrangement 9 is available as belt driven only. A
motor slide base is mounted on the side of the
bearing pedestal. This arrangement permits the unit
to ship as a complete assembly with the motor and
drive mounted. Typically, the motor is mounted on
the left side of the pedestal for CW rotation fans and
on the right side for CCW rotation fans.
Arrangement 9F
SWSI — Single Width, Single Inlet
(Not Shown)
Arrangement 9F is available when a unit requires
a motor that is too large to mount on the side of
the bearing pedestal. The fan base is extended to
accommodate the motor, for horizontal mounting,
similar to an Arrangement 1 fan. Typically, the motor
is mounted on the left side of the pedestal for CW
rotation fans and on the right side for CCW rotation
fans. Arrangement 9F is not suitable for mounting
vibration isolators directly under the fan.
Fan shown is Arrangement 9 CW-THD with nonstandard motor location on right-hand side.
Arrangement 10
SWSI — Single Width, Single Inlet
Arrangement 10 is available as belt driven only.
For Class I and II fans, sizes 122 through 365,
Arrangement 10 units are commonly referred to
as Ventilating Sets. (Refer to Bulletin 600 for more
details.) An Arrangement 10 unit has an adjustable
motor base mounted inside the bearing pedestal. This
arrangement offers a more compact design than the
Arrangement 9 and is suitable for roof or outdoor
installations with a weather cover.
DWDI Arrangements
Arrangement 3
DWDI fans are generally supplied in Arr. 3 for V-belt
drive. The wheel is mounted between the bearings
and supported by the fan housing. Since both bearings are located in the airstream, standard DWDI
fans should be used for clean air applications with
air temperatures limited to 130°F. The motor can be
mounted in any of the four standard motor positions:
W, X, Y or Z.
Class II Arrangement 10 ventilating set with
optional shaft cooler and insulated heat shield.
Arr. 3F with
motor located in
“Z” position.
Arrangement 3F
Arr. 3F offers an integral extended base to accommodate the motor. The base is prepunched to accept
vibration isolators. Arr. 3F is available to Size 660 and
for motor positions W and Z as standard. For motor
positions X and Y, consult factory.
5
Twin City Bulletin 370
Optional Construction
Spark Resistant Construction
Split Housings
Fan applications may involve the handling of potentially explosive or flammable particles, fumes or vapors.
Such applications require careful consideration by the
system designer to insure the safe handling of such
gases. Twin City Fan & Blower offers the following
classifications of spark resistant construction per
AMCA Standard 99-0401-86. It is the specifier or the
user’s responsibility to specify the type of spark resistant construction with full recognition of the potential
hazards and the degree of protection required.
All fans are designed to permit wheel removal through
the fan inlet. To suit installation as well as transportation requirements, Twin City Fan & Blower offers
horizontal split, pie-shaped, as well as other special
split housing designs. Pie-shaped split housings allow
fan wheel and shaft removal without disconnecting
ductwork.
Type A All parts of the fan in contact with the
airstream must be made of non-ferrous
material — usually aluminum and limited to
250°F operation.
Type B The fan shall have a non-ferrous wheel and
non-ferrous ring about the opening through
which the shaft passes — usually aluminum
wheel and rub ring and limited to 250°F
construction.
Type C The fan shall be so constructed that the
shift of the wheel or shaft will not permit
two ferrous parts of the fan to rub or strike.
This is accomplished with an aluminum
inlet cone and rub ring. This construction is
limited to 500°F. Construction to 800°F is
available using a steel inlet cone with copper/bronze lining.
Notes:
1.Bearings shall be placed outside the airstream.
Therefore, do not use Arrangement 3 or 7.
2.The user shall electrically ground all fan parts.
Refer to the above listed AMCA standard for full
details
Fan with pie-shaped split housing, raised
access door and insulation pins.
Swingout Construction
Swingout fans are ideal for applications requiring
frequent cleaning and inspection of the fan wheel
and interior of the housing such as found in spray
painting booth exhaust. Refer to Bulletin GA200 for
other types of easy access fans offered by Twin City
Fan & Blower.
Special Metals
To suit the demanding applications of today’s industry, Twin City Fan & Blower offers a variety of material for construction, including aluminum and stainless
steel. We offer AWS and ASME certified welding
procedures and welding technicians to assure quality
construction when using special metals as well.
6
Twin City Bulletin 370
Standard Configurations
Designation for Rotation and Discharge
Clockwise
Upblast
CW 360
Clockwise
Downblast
CW 180
Clockwise
Top Angular Up
CW45
Clockwise
Bottom Angular Down
CW225
Clockwise
Top Horizontal
CW90
Clockwise
Bottom Horizontal
CW270
Clockwise
Top Angular Down
CW135
Clockwise
Bottom Angular Up
CW315
Counterclockwise
Upblast
CCW360
Counterclockwise
Downblast
CCW180
Counterclockwise
Top Angular Up
CCW45
Counterclockwise
Bottom Angular Down
CCW225
Counterclockwise
Top Horizontal
CCW90
Counterclockwise
Bottom Horizontal
CCW270
Counterclockwise
Top Angular Down
CCW135
Counterclockwise
Bottom Angular Up
CCW315
Direction of rotation is determined from drive side of the fan.
On single inlet fans, the drive side is always considered the side opposite the fan inlet.
On double inlet fans with drives on both sides, the drive side is that with the higher power drive unit.
The direction of discharge is determined in accordance with the diagrams shown above. The angle of discharge
references the vertical axis of the fan and is designated in degrees above or below that reference axis.
On fans inverted for ceiling suspension or side-wall mounting, the discharge is determined when the fan
is resting on the floor.
Motor Positions
The drawing above illustrates the AMCA motor position standards for Arrangement 1 and 3 fans
(Arrangement 1 shown). The location of the motor is determined by facing the drive side of the fan and
designating the motor position by letters W, X, Y, or Z, in accordance with the diagram shown above.
Illustrations reprinted from AMCA Publication 99 Standards Handbook, with the express written permission from the
Air Movement and Control Association International, Inc., 30 West University Drive, Arlington Heights, IL 60004-1983.
7
Twin City Bulletin 370
Accessories
Volume Control Devices
Outlet dampers, variable inlet vanes, and variable
frequency drives are three popular devices used to
control volume for fan systems.
Outlet Dampers
The closing of the damper adds to the resistance that
the fan is working against. This moves the operating
point to the left of the initial rating point. The savings
in horsepower depends on the relative position on the
fan curve and is usually much less than offered by
other methods. Outlet dampers are typically the least
expensive option and should be considered when
infrequent operation at lesser capacity is desired or
when handling hot, humid or particulate laden air.
There are two types of outlet dampers: parallel
blade and opposed blade.
Parallel blade dampers are recommended for
systems where air volume is modulated between fullopen to about 75% of open.
Opposed blade dampers cost about 10% more
and are recommended for systems where volume is
modulated over the entire range. Opposed blades
reduce air volume in a closer relationship to the control arm movement.
Variable Inlet Vanes
Performance Curves
at Different Vane Settings
10
200
75
STATIC PRESSURE
8
100
160
50
25
0
6
120
4
80
25
0
2
0
2
4
75
50
100
BRAKE HORSEPOWER
Nested
Inlet
Vanes
40
6
8
10
CFM IN 10000's
External Inlet Vanes
System Curve
SYSTEM CURVE
SP @ Vane Setting
SP @ VANE SETTING
BHP @ Vane Setting
BHP @ VANE SETTING
Variable inlet vanes cause the entering air to spin
in the direction of wheel rotation, resulting in reduction in volume, static pressure and brake horsepower
and thus providing an infinite number of fan curves
approximately parallel to the original fan curve.
Variable inlet vanes cost about 50% to 80% more
than outlet dampers but offer significant savings in
energy. Because of their simplicity, inlet vanes can be
more reliable when compared to variable frequency
drives.
There are two types of variable inlet vanes: nested
(internal type) and bolted on (external type).
Nested inlet vanes are built into the fan inlet cone
and offer the advantage of saving space and lower
cost as opposed to the external type, and they will
be provided on all fan sizes 165 and larger. Twin City
Fan & Blower offers cantilevered vanes to size 730
Class II fans to minimize insertion losses and noise
associated with center hub design.
External inlet vanes are bolted to the inlet of the
fan and are available as standard to size 150. Use of
external vanes should be considered for hostile environments since operating linkages are shielded from
the airstream. Both types of inlet vanes are available
to 600°F construction.
Variable Frequency Drive (VFD) Fan Motors
VFD changes the fan speed and can provide the
greatest potential for energy savings, although at
highest initial cost. VFD should be considered for
8
extended operation at part load conditions, especially
below 70% of the full volume operation.
Twin City Bulletin 370
Accessories
Access Doors
Bolted, quick opening, and raised bolted access
doors are available for wheel inspection or maintenance.
Bolted
Access Door
Drain
Threaded pipe coupling welded to the lowest point in
the housing scroll. All fans come with a weep hole
in the bottom of the housing.
Shaft Seal
A shaft seal reduces leakage and protects the bearings from a contaminated airstream. It is constructed
of non-asbestos woven fibrous materials (ceramic felt)
compressed between an aluminum cover plate and
the fan housing. A ceramic felt shaft seal does not
make the fan gas tight. A variety of special seals is
available for low leakage applications requiring more
positive protection, including mechanical type stuffing
boxes.
Quick-Opening
Access Door
Flanged Inlet
A punched
mounting.
inlet
flange
Flanged Outlet
is
available
for
duct
(DWDI Class I & II)
A punched or unpunched flange is welded to the fan
outlet. An unpunched flanged outlet is standard on
all SWSI and DWDI Class III and IV fans.
Raised Bolted
Access Door
Inlet/Outlet
Companion Flanges
Companion flanges are used for installing the fan to
flexible sleeve connections and are punched to match
the fan’s inlet or outlet.
Companion
Inlet Flange
Inlet and Outlet Screens
Safety screens are available for mounting in the fan
inlet or outlet in non-ducted applications.
9
Twin City Bulletin 370
Accessories
Belt Guards
A belt guard protects personnel from the moving
drive parts. Both standard and totally enclosed type
guards are available.
Belt Guard
Special Paint & Protective
Coatings
Twin City Fan & Blower has an in-house, specialty
coating facility to handle any type of coating requirement. Refer to Engineering Supplement ES-35 for
more details.
Bearing Upgrades
Unit roller or split pillow block, double row roller
bearings are available. Split pillow block roller bearings are not available for fans with less than 1-7/16"
diameter bearings and are not recommended for fans
with light loadings. Refer to Engineering Data ED1200 and ED-1300 for the correct type of bearings,
selection criteria, maintenance, etc.
Shaft and Bearing Guards
(SWSI)
Solid sheet metal guards cover shaft and bearings
and come with extended lube lines to a common
point out either side of the guard. A guard spanning
the shaft between the bearings is also available to
provide easy access to bearings for lubrication and
vibration monitoring.
Ball Bearing
Unitary Base
A structural steel base provides common support
to fan, motor and drive including guards. This style
of base is designed for use without isolators and
requires adequate foundation integrity for proper
operation.
Vibration Isolation Bases
Heavy structural base for fan, motor and drive is
designed for use with spring or rubber-in-shear type
isolators. Use of flexible connectors at inlet and outlet
is required on fans with isolators.
Unit Roller
Bearing
V-Belt Drives
V-belt drives offer an economical yet flexible means
of transmitting power to the fans. There are two
types of V-belt drives.
• Adjustable Pitch or Variable Speed Drives
An adjustable pitch drive offers easy adjustment
of speed. The motor pulley pitch can be adjusted
when the fan is at rest which can offer speed
variation of about 10% from the design speed.
This style of sheave can result in higher vibration
so adjustable pitch drives are not recommended
for use on motors over 10 HP or wherever low
vibration is required.
• Fixed Pitch or Constant Speed Drives
This type of drive offers low cost and lowest vibration levels. Speed change can often be accomplished by changing only one of the sheaves.
10
Split Pillow
Block Bearing
Other Accessories Available
• Variation in wheel diameter and width
• Inlet boxes
• Bearings RTD
• Piezometer ring airflow measuring system (see page 7)
• Consult factory for other accessories
Twin City Bulletin 370
Flow Measurement System
Piezometer Ring (Airflow Measuring
System)
A piezometer ring is available on model BAE fans, as
well as other Twin City Fan housed and plenum fans,
as part of an airflow measuring system, based on the
principle of a flow nozzle. The inlet cone of the fan is
used as the flow nozzle. The flow can be calculated
by measuring the pressure drop through the inlet
cone. No tubes or sensors are inserted in the high
velocity airstream which could obstruct airflow.
The system, consists of a piezometer ring mounted
at the throat and a static pressure tap mounted on
the face of the inlet cone. A differential pressure
transducer and digital display can also be provided.
The pressure drop is measured from the tap located on the face of the inlet cone to the piezometer
ring in the throat. The inlet tap is connected to the
high-pressure side of the transducer and the piezometer ring is connected to the low-pressure side.
Based on Twin City Fan laboratory tests, the system was determined to be accurate within +/-5%.
Refer to Twin City Fan Engineering Supplement ES105.
NOTE: Twin City Fan does not recommend placement of flow measuring probes inside the fan inlet
cone in the path of airflow. These devices create
disturbances and unpredictable performance losses.
Twin City Fan will not be responsible for loss of performance due to such devices.
Piezometer Ring
Mounted at Throat
of Inlet Cone
Performance Correction for Temperature & Altitude
The performance tables in this catalog are based
on fans handling standard air at a density of 0.075
pounds per cubic foot. This is equivalent to air at
70°F at sea level (29.92" Hg barometric pressure).
When specified performance is at a density different than standard, it must be converted to the
equivalent standard conditions before the fan can be
selected from the performance tables. The equivalent
standard conditions can be calculated by using the
Temperature and Altitude Density Ratios shown in the
table below.
Temperature and Altitude Density Ratios
AIR
TEMP
°F
–50
0
50
70
100
150
200
250
300
350
400
450
500
550
600
650
700
750
800
850
900
950
1000
11
0
1000
2000
29.92
1.293
1.152
1.039
1.000
0.946
0.869
0.803
0.747
0.697
0.654
0.616
0.582
0.552
0.525
0.500
0.477
0.457
0.439
0.420
0.404
0.389
0.376
0.363
28.86
1.247
1.111
1.003
0.964
0.912
0.838
0.774
0.720
0.672
0.631
0.594
0.561
0.532
0.506
0.482
0.460
0.441
0.423
0.404
0.391
0.376
0.363
0.350
27.82
1.201
1.071
0.967
0.930
0.880
0.808
0.747
0.694
0.648
0.608
0.573
0.542
0.513
0.488
0.465
0.444
0.425
0.407
0.389
0.376
0.363
0.350
0.338
ALTITUDE IN FEET ABOVE SEA LEVEL
3000
4000
5000
6000
7000
8000
BAROMETRIC PRESSURE IN INCHES OF MERCURY
26.82
25.84
24.90
23.98
23.09
22.22
1.159
1.116
1.076
1.036
0.997
0.960
1.032
0.995
0.959
0.923
0.889
0.856
0.932
0.897
0.864
0.833
0.801
0.772
0.896
0.864
0.832
0.801
0.772
0.743
0.848
0.818
0.787
0.758
0.730
0.703
0.770
0.751
0.723
0.696
0.671
0.646
0.720
0.694
0.668
0.643
0.620
0.596
0.669
0.645
0.622
0.598
0.576
0.555
0.624
0.604
0.580
0.558
0.538
0.518
0.586
0.565
0.544
0.524
0.505
0.486
0.552
0.532
0.513
0.493
0.476
0.458
0.522
0.503
0.484
0.466
0.449
0.433
0.495
0.477
0.459
0.442
0.426
0.410
0.470
0.454
0.437
0.421
0.405
0.390
0.448
0.432
0.416
0.400
0.386
0.372
0.427
0.412
0.397
0.382
0.368
0.354
0.410
0.395
0.380
0.366
0.353
0.340
0.393
0.379
0.365
0.351
0.338
0.326
0.375
0.362
0.350
0.336
0.323 0.311
0.363
0.349
0.336
0.324
0.312
0.300
0.349
0.336
0.324
0.312
0.300
0.289
0.337
0.325
0.313
0.301
0.290
0.279
0.325
0.314
0.302
0.291
0.280
0.270
9000
10000
15000
21.39
0.924
0.824
0.743
0.714
0.676
0.620
0.573
0.533
0.498
0.467
0.440
0.416
0.394
0.375
0.352
0.341
0.326
0.313
0.300
0.289
0.279
0.269
0.259
20.58
0.889
0.792
0.715
0.688
0.651
0.598
0.552
0.514
0.480
0.450
0.424
0.401
0.380
0.361
0.344
0.328
0.315
0.303
0.290
0.279
0.268
0.259
0.250
16.89
0.729
0.650
0.586
0.564
0.534
0.490
0.453
0.421
0.393
0.369
0.347
0.328
0.311
0.296
0.282
0.269
0.258
0.248
0.237
0.228
0.220
0.212
0.205
Twin City Bulletin 370
Maximum RPM, Wheel Weights
& WR2 (moment of inertia in lb-ft2)
SWSI
SW ALUMINUM
SIZE
122
135
150
165
182
200
222
245
270
300
330
365
402
445
490
542
600
660
730
807
890
982
MAX.
RPM
3990
3265
3260
2673
2207
2014
1814
1647
1474
1327
1206
1080
979
886
804
727
657
597
540
488
443
401
CLASS I
WHEEL
WEIGHT
(LB)
9.4
10.1
13.7
15.7
17
21
30
35
40
49
62
73
85
126
164
227
255
346
412
499
774
904
WR2
(LB-FT2)
MAX.
RPM
0.97
1.4
2.12
3.23
6.1
6.4
12
21
29
46
70
103
151
233
391
632
931
1377
2049
3008
5652
8248
5206
4260
4253
3487
2879
2627
2367
2149
1923
1731
1573
1409
1278
1156
1050
948
857
779
705
637
578
523
CLASS II
WHEEL
WEIGHT
(LB)
9.4
10.1
13.6
16.8
18
21
30
35
40
54
67
79
93
135
164
227
255
346
499
574
884
1041
WR2
(LB-FT2)
0.97
1.4
2.12
4.04
6.1
7.4
12
21
29
51
76
112
165
253
391
632
931
1377
2671
3474
6438
9443
MAX.
RPM
CLASS III
WHEEL
WEIGHT
(LB)
WR2
(LB-FT2)
NA
NA
NA
3628
3310
2982
2708
2423
2181
1982
1775
1610
1456
1322
1194
1080
982
888
21
24
34
38
47
58
72
84
98
142
174
239
270
371
550
6.2
9.3
15
22
32
52
77
114
166
256
535
673
991
1478
2985
NA
NA
NA
MAX.
RPM
NA
CLASS IV
WHEEL
WEIGHT
(LB)
NA
WR2
(LB-FT2)
NA
SW STEEL
SIZE
122
135
150
165
182
200
222
245
270
300
330
365
402
445
490
542
600
660
730
807
890
982
12
MAX.
RPM
CLASS I
WHEEL
WEIGHT
(LB)
WR2
(LB-FT2)
MAX.
RPM
CLASS II
WHEEL
WEIGHT
(LB)
WR2
(LB-FT2)
MAX.
RPM
CLASS III
WHEEL
WEIGHT
(LB)
WR2
(LB-FT2)
MAX.
RPM
CLASS IV
WHEEL
WEIGHT
(LB)
WR2
(LB-FT2)
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
1474
1327
1206
1080
979
886
804
727
657
597
540
488
443
401
99
124
151
218
252
340
392
567
696
942
1092
1288
1935
2245
70
106
162
276
401
620
895
1423
2246
3413
5274
7766
14129
20481
1923
1731
1573
1409
1278
1156
1050
948
857
779
705
637
578
523
99
124
150
216
251
339
390
608
698
953
1103
1397
1940
2258
70
106
162
276
401
620
895
1543
2246
3415
5276
8451
14130
20483
2423
2181
1982
1775
1610
1456
1322
1194
1080
982
888
802
728
654
121
148
185
251
289
437
533
738
856
1132
1390
1617
2353
2971
82
123
183
293
451
815
1257
2068
2986
4494
7222
10610
18160
29160
2756
2480
2255
2040
1850
1673
1520
1373
1241
1128
1020
922
837
756
135
160
199
251
288
464
563
810
942
1235
1507
1758
2498
---
91
137
203
306
444
848
1308
2262
3356
5040
7812
11505
19429
---
Twin City Bulletin 370
Maximum RPM, Wheel Weights
& WR2 (moment of inertia in lb-ft2)
DWDI
DW ALUMINUM
SIZE
122
135
150
165
182
200
222
245
270
300
330
365
402
445
490
542
600
660
730
807
890
982
MAX.
RPM
3957
3374
3232
2761
2248
2051
1837
1668
1541
1387
1261
1114
1010
914
830
750
678
616
557
504
457
414
CLASS I
WHEEL
WEIGHT
(LB)
14
14.8
21.8
25
29
36
45
53
62
80
108
109
133
191
245
339
380
495
593
727
1131
1340
WR2
(LB-FT2)
MAX.
RPM
1.1
1.56
2.4
3.75
10.4
10.9
18
32
45
75
122
154
236
353
584
945
1388
1972
2949
4382
8259
12230
5158
4398
4213
3599
2930
2674
2395
2175
2009
1808
1644
1452
1317
1191
1082
977
883
803
726
656
596
539
CLASS II
WHEEL
WEIGHT
(LB)
14.6
17.5
23.8
27.7
29
40
53
62
69
86
114
123
144
222
260
337
376
499
716
819
1295
1541
WR2
(LB-FT2)
1.1
1.6
2.43
4.55
9.9
14.0
21
37
50
81
129
174
256
416
619
939
1372
1987
3832
4955
9429
13979
MAX.
RPM
CLASS III
WHEEL
WEIGHT
(LB)
WR2
(LB-FT2)
NA
NA
NA
3695
3372
3020
2742
2533
2280
2072
1831
1661
1502
1364
1232
1114
1013
916
33
39
54
60
75
89
104
119
141
219
262
360
401
537
826
9.8
15.2
24
35
51
80
111
162
239
395
806
1014
1470
2141
4484
NA
NA
NA
MAX.
RPM
NA
CLASS IV
WHEEL
WEIGHT
(LB)
NA
WR2
(LB-FT2)
NA
DW STEEL
SIZE
122
135
150
165
182
200
222
245
270
300
330
365
402
445
490
542
600
660
730
807
890
982
13
MAX.
RPM
CLASS I
WHEEL
WEIGHT
(LB)
WR2
(LB-FT2)
MAX.
RPM
CLASS II
WHEEL
WEIGHT
(LB)
WR2
(LB-FT2)
MAX.
RPM
CLASS III
WHEEL
WEIGHT
(LB)
WR2
(LB-FT2)
MAX.
RPM
CLASS IV
WHEEL
WEIGHT
(LB)
WR2
(LB-FT2)
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
NA
1541
1387
1261
1114
1010
914
830
750
678
616
557
504
457
414
152
201
263
326
395
516
585
739
906
1349
1571
1876
2827
3329
116
176
272
439
640
981
1427
2128
3338
5213
8239
12195
21881
31933
2009
1808
1644
1452
1317
1191
1082
977
883
803
726
656
596
539
170
197
254
335
390
557
618
771
897
1375
1582
1992
2842
3343
117
176
272
440
640
984
1430
2247
3338
5217
8243
12933
21887
31941
2533
2280
2072
1831
1661
1502
1364
1232
1114
1013
916
828
751
---
195
227
268
356
417
674
803
963
1121
1640
2088
2450
3300
---
130
196
290
444
700
1317
2049
3163
4614
7099
11718
17251
27962
---
2756
2480
2255
2040
1850
1673
1520
1373
1241
1128
1020
922
837
---
212
261
304
362
434
720
830
991
1180
1788
2139
2533
3377
---
142
216
316
472
689
1383
2066
3295
4975
7674
12086
17816
28592
---
Twin City Bulletin 370
Standard Construction Features & Weights
SWSI Class I
HOUSING
SIZE
SIDES
SCROLL
122
14
14
135
14
14
150
14
14
165
14
14
182
14
14
200
14
14
222
12
14
245
12
14
270
12
14
300
10
12
330
10
12
365
10
12
402
10
12
445
10
12
490
10
12
542
10
12
600
10
12
660
10
12
730
10
10
807
10
10
890 7
10
982 7 7
Bearing Types:
B = Ball Bearing
SHAFT DIAMETER & BEARINGS
ARR 1 & 9
ARR 3
SHAFT BEARING SHAFT BEARING
DIA.
TYPE
DIA.
TYPE
1
B
1
B
1
B
1
B
1
B
1
B
1
B
1
B
B
13⁄16
B
13⁄16
B
17⁄16
B
17⁄16
B
17⁄16
B
17⁄16
B
17⁄16
B
17⁄16
B
17⁄16
B
111⁄16
B
111⁄16
B
115⁄16
B
111⁄16
B
115⁄16
B
115⁄16
B
115⁄16
B
115⁄16
B
23⁄16
B
115⁄16
B
27⁄16
B
23⁄16
R
211⁄16
B
27⁄16
R
215⁄16
B
215⁄16
B
215⁄16
R
215⁄16
R
37⁄16
R
37⁄16
R
37⁄16
R
315⁄16
R
315⁄16
R
315⁄16
R
315⁄16
SR
415⁄16
SR
415⁄16
R = Unit Roller Bearings
BARE FAN WEIGHT (LB)
ARR 1
ARR 3
ARR 9
122
141
169
199
238
288
363
440
596
721
872
1094
1431
1673
1951
2863
3375
4277
5221
5255
7220
9425
104
125
149
200
202
229
250
306
446
665
935
1031
1297
1628
1807
2402
3267
4114
4813
5498
6668
7847
129
148
178
209
251
304
384
464
625
756
915
1146
1501
1755
2046
3000
3538
4486
5479
5515
7576
9888
SR = Spherical Roller Bearings with Split Pillow Block Housings
SWSI Class II
SIZE
122
135
150
165
182
200
222
245
270
300
330
365
402
445
490
542
600
660
730
807
890
982
Bearing Types:
14
HOUSING
SIDES
14
14
14
14
14
14
12
12
12
10
10
10
10
10
10
10
10
10
10
10
7
7
SCROLL
14
14
14
14
14
14
14
14
14
12
12
12
12
12
12
12
12
12
10
10
10
7
B = Ball Bearing
SHAFT DIAMETER & BEARINGS
ARR 1 & 9
ARR 3
SHAFT BEARING SHAFT BEARING
DIA.
TYPE
DIA.
TYPE
1
B
1
B
1
B
1
B
B
13⁄16
B
13⁄16
B
13⁄16
B
13⁄16
B
17⁄16
B
17⁄16
B
17⁄16
B
17⁄16
B
17⁄16
B
17⁄16
B
111⁄16
B
111⁄16
B
111⁄16
B
111⁄16
B
115⁄16
B
115⁄16
B
23⁄16
B
23⁄16
B
27⁄16
B
27⁄16
R
27⁄16
B
27⁄16
R
211⁄16
R
211⁄16
R
211⁄16
R
215⁄16
R
215⁄16
R
37⁄16
R
37⁄16
R
37⁄16
R
315⁄16
R
315⁄16
R
315⁄16
R
315⁄16
SR
47⁄16
R
47⁄16
SR
415⁄16
R
415⁄16
SR
57⁄16
SR
57⁄16
R = Unit Roller Bearings
BARE FAN WEIGHT (LB)
ARR 1
ARR 3
ARR 9
128
147
180
211
250
295
373
463
610
726
879
1133
1459
1680
1957
2943
3429
4445
5415
5503
7621
9645
114
137
163
219
220
250
279
342
489
718
997
1095
1392
1724
1907
2576
3518
4476
5304
6062
7344
8595
134
154
189
221
264
311
394
489
640
762
924
1189
1531
1765
2057
3087
3598
4663
5682
5776
7995
10120
SR = Spherical Roller Bearings with Split Pillow Block Housings
Twin City Bulletin 370
Standard Construction Features & Weights
SWSI Class III
SIZE
122
135
150
165
182
200
222
245
270
300
330
365
402
445
490
542
600
660
730
807
890
Bearing Types:
HOUSING
SIDES
SCROLL
SHAFT DIAMETER & BEARINGS
ARR 1 & 9
ARR 3
SHAFT BEARING SHAFT BEARING
DIA.
TYPE
DIA.
TYPE
BARE FAN WEIGHT (LB)
ARR 1
ARR 3
ARR 9
272
316
408
572
763
987
1202
1429
1778
2225
2636
3782
4741
5623
6796
6735
8114
377
410
444
488
658
1069
1087
1492
1867
2355
2704
3508
4748
6287
7374
8409
10043
287
334
431
604
801
1036
1262
1501
1867
2335
2765
3965
4971
5897
7127
7066
8513
NA
10
10
10
7
7
7
7
7
7
7
7
7
7
7
7
7
7
B = Ball Bearing
10
10
10
7
7
7
7
7
7
7
7
7
7
7
7
7
7
111⁄16
115⁄16
115⁄16
23⁄16
23⁄16
27⁄16
211⁄16
211⁄16
215⁄16
37⁄16
37⁄16
315⁄16
47⁄16
47⁄16
415⁄16
415⁄16
57⁄16
111⁄16
111⁄16
115⁄16
115⁄16
115⁄16
23⁄16
27⁄16
27⁄16
211⁄16
215⁄16
215⁄16
37⁄16
315⁄16
315⁄16
47⁄16
415⁄16
57⁄16
B
B
B
B
B
R
R
R
R
R
R
R
SR
SR
SR
SR
SR
R = Unit Roller Bearings
B
B
R
R
R
R
R
R
R
R
R
R
R
R
SR
SR
SR
SR = Spherical Roller Bearings with Split Pillow Block Housings
SWSI Class IV
HOUSING
SIZE
SIDES
SCROLL
122
135
150
165
182
200
222
245
270
7
7
300
7
7
330
0.25
0.25
365
0.25
0.25
402
0.25
0.25
445
0.25
0.25
490
0.25
0.25
542
0.25
0.25
600
0.25
0.25
660
0.25
0.25
730
0.25
0.25
807
0.25
0.25
890
0.25
0.25
Bearing Types:
15
B = Ball Bearing
SHAFT DIAMETER & BEARINGS
ARR 1 & 9
ARR 3
SHAFT BEARING SHAFT BEARING
DIA.
TYPE
DIA.
TYPE
BARE FAN WEIGHT (LB)
ARR 1
ARR 3
ARR 9
883
1112
1527
1978
2425
3100
3567
4699
5604
6766
8295
8060
9581
731
1180
1614
1673
2077
2643
2994
3883
5218
6962
8104
9224
11012
927
1169
1604
2077
2547
3252
3742
4927
5880
7099
8705
8463
10059
NA
27⁄16
211⁄16
215⁄16
37⁄16
37⁄16
315⁄16
315⁄16
47⁄16
415⁄16
415⁄16
57⁄16
57⁄16
515⁄16
R
R
R
R
R
R
R
SR
SR
SR
SR
SR
SR
R = Unit Roller Bearings
23⁄16
27⁄16
211⁄16
215⁄16
215⁄16
37⁄16
37⁄16
315⁄16
47⁄16
47⁄16
415⁄16
57⁄16
515⁄16
R
R
R
R
R
R
R
R
SR
SR
SR
SR
SR
SR = Spherical Roller Bearings with Split Pillow Block Housings
Twin City Bulletin 370
Standard Construction Features & Weights
DWDI Class I & II
HOUSING
SIZE
SIDES
SCROLL
14
14
14
14
12
12
12
12
12
10
10
10
10
10
10
10
10
10
10
10
7
7
14
14
14
14
14
14
14
14
14
12
12
12
12
12
12
12
12
12
10
10
10
7
122
135
150
165
182
200
222
245
270
300
330
365
402
445
490
542
600
660
730
807
890
982
Bearing Types:
B = Ball Bearing
SHAFT DIAMETER & BEARINGS
CLASS I
CLASS II
SHAFT DIAMETER
BEARING
SHAFT DIAMETER
@ BRG.
@ WHEEL
@ BRG.
@ WHEEL
TYPE
13⁄16
B
17⁄16
17⁄16
13⁄16
13⁄16
13⁄16
B
111⁄16
111⁄16
17⁄16
17⁄16
B
111⁄16
111⁄16
17⁄16
17⁄16
B
115⁄16
115⁄16
111⁄16
111⁄16
B
115⁄16
115⁄16
111⁄16
111⁄16
B
23⁄16
23⁄16
115⁄16
115⁄16
B
27⁄16
27⁄16
23⁄16
23⁄16
B
27⁄16
27⁄16
23⁄16
23⁄16
B
211⁄16
211⁄16
27⁄16
27⁄16
B
27⁄16
215⁄16
27⁄16
27⁄16
B
27⁄16
37⁄16
211⁄16
211⁄16
B
211⁄16
37⁄16
27⁄16
215⁄16
R
211⁄16
37⁄16
27⁄16
37⁄16
R
215⁄16
315⁄16
211⁄16
37⁄16
R
37⁄16
315⁄16
215⁄16
315⁄16
R
37⁄16
47⁄16
37⁄16
47⁄16
R
315⁄16
415⁄16
37⁄16
47⁄16
R
315⁄16
415⁄16
315⁄16
415⁄16
R
315⁄16
515⁄16
315⁄16
57⁄16
R
47⁄16
67⁄16
315⁄16
515⁄16
R
47⁄16
615⁄16
415⁄16
67⁄16
SR
57⁄16
71⁄2
R = Unit Roller Bearings
BARE FAN WEIGHT (LB)
ARR 3
BEARING
TYPE
B
B
B
B
B
B
B
B
R
R
R
R
R
R
R
R
R
R
R
SR
SR
SR
CLASS I
CLASS II
145
165
201
231
279
327
422
463
686
971
1107
1467
1844
2227
2446
3107
4365
5732
6427
7883
9395
11585
159
181
220
254
302
350
472
527
756
1024
1155
1556
1940
2366
2573
3343
4707
6217
7059
8660
10446
12762
SR = Spherical Roller Bearings with Split Pillow Block Housings
DWDI Class III & IV
SHAFT DIAMETER & BEARINGS
HOUSING
SIZE
122
135
150
165
182
200
222
245
270
300
330
365
402
445
490
542
600
660
730
807
890
982
CLASS III
SIDES
SCROLL
CLASS IV
SIDES
SCROLL
CLASS III
SHAFT DIAMETER
BEARING
@ BRG. @ WHEEL
TYPE
CONSULT FACTORY
CONSULT FACTORY
CONSULT FACTORY
Bearing Types:
16
10
10
10
7
7
7
7
7
7
7
7
7
7
7
7
7
7
7
10
10
10
7
7
7
7
7
7
7
7
7
7
7
7
7
7
7
B = Ball Bearing
7
7
7
7
7
7
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
7
7
7
7
7
7
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
0.25
23⁄16
27⁄16
27⁄16
27⁄16
211⁄16
211⁄16
215⁄16
215⁄16
37⁄16
37⁄16
315⁄16
315⁄16
47⁄16
415⁄16
415⁄16
—
—
—
R = Unit Roller Bearings
23⁄16
27⁄16
27⁄16
215⁄16
37⁄16
37⁄16
37⁄16
315⁄16
315⁄16
47⁄16
415⁄16
57⁄16
57⁄16
515⁄16
615⁄16
—
—
—
R
R
R
R
R
R
R
R
R
R
R
R
SR
SR
SR
SR
SR
—
BARE FAN WEIGHT
(LB)
ARR 3
CLASS IV
SHAFT DIAMETER
BEARING
CLASS III CLASS IV
@ BRG. @ WHEEL
TYPE
NA
NA
NA
NA
CONSULT FACTORY
NA
NA
NA
NA
435
NA
590
NA
NA
751
NA
812
NA
215⁄16
315⁄16
R
1122
1229
215⁄16
47⁄16
R
1529
1669
37⁄16
415⁄16
R
1668
1848
37⁄16
415⁄16
R
2075
2327
315⁄16
57⁄16
R
2619
2902
315⁄16
57⁄16
R
3359
3755
47⁄16
57⁄16
SR
3705
4066
47⁄16
515⁄16
SR
4629
5097
415⁄16
67⁄16
SR
6479
7064
57⁄16
67⁄16
SR
8614
9574
515⁄16
71⁄2
SR
9999
10881
—
—
SR
12223
12300
—
—
SR
14547
15731
—
—
—
NA
NA
SR = Spherical Roller Bearings with Split Pillow Block Housings
Twin City Bulletin 370
Performance Data
BAE SWSI 122 & BAV 122
Outlet Area - 0.86 ft2
0.25" SP
RPM BHP
1070 0.05
1159 0.06
1251 0.08
1345 0.09
1441 0.11
1637 0.16
1837 0.22
2040 0.30
2245 0.39
2452 0.51
2660 0.64
2869 0.79
3079 0.97
3289 1.18
3501 1.42
3712 1.68
Wheel Dia. - 12.25 inches
OV
800
900
1000
1100
1200
1400
1600
1800
2000
2200
2400
2600
2800
3000
3200
3400
CFM
1720
1892
2064
2236
2408
2580
2752
2924
3096
3268
3440
3612
5" SP
5.5" SP
6" SP
7" SP
8" SP
9" SP
10" SP
11" SP
12" SP
13" SP
14" SP
OV
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
2000 3528 1.98 3630 2.16 3727 2.34 3917 2.71 4102 3.11 4280 3.52 4453 3.95 4625 4.40 4795 4.86 4965 5.34 5133 5.83
2200 3676 2.23 3776 2.43 3872 2.62 4055 3.02 4228 3.42 4400 3.84 4565 4.28 4726 4.74 4883 5.22 5039 5.70 5194 6.21
2400 3828 2.51 3925 2.71 4019 2.92 4199 3.34 4369 3.77 4530 4.20 4688 4.65 4844 5.13 4995 5.61 5142 6.11
2600 3983 2.80 4078 3.02 4171 3.25 4347 3.70 4514 4.15 4674 4.61 4825 5.08 4971 5.55 5117 6.05
2800 4140 3.10 4234 3.35 4325 3.59 4498 4.08 4663 4.56 4819 5.04 4969 5.54 5113 6.04
3000 4300 3.42 4392 3.69 4482 3.95 4653 4.48 4814 5.00 4968 5.51 5116 6.03
3200 4463 3.77 4553 4.05 4641 4.33 4809 4.90 4968 5.45 5120 6.01
3400 4631 4.15 4718 4.44 4802 4.73 4967 5.33 5125 5.93
3600 4804 4.58 4886 4.86 4968 5.17 5128 5.79
3800 4981 5.05 5060 5.34 5138 5.64
4000 5160 5.56
4200
Class I — 3990
0.75" SP
RPM BHP
1385 0.12
1460 0.14
1537 0.16
1616 0.18
1696 0.21
1866 0.27
2045 0.34
2230 0.44
2421 0.55
2614 0.67
2811 0.82
3010 1.00
3211 1.19
3413 1.41
3617 1.66
3823 1.95
1" SP
RPM BHP
1510 0.16
1582 0.18
1656 0.20
1732 0.23
1810 0.26
1970 0.33
2140 0.41
2318 0.50
2502 0.62
2690 0.76
2882 0.92
3077 1.09
3274 1.30
3473 1.53
3674 1.79
3876 2.08
1.5" SP
RPM BHP
1738 0.24
1797 0.26
1864 0.29
1936 0.33
2010 0.37
2163 0.45
2320 0.54
2484 0.65
2656 0.77
2835 0.92
3018 1.09
3206 1.29
3396 1.51
3589 1.76
3784 2.03
3981 2.34
Class II — 5206
2" SP
RPM BHP
1952 0.33
1994 0.36
2051 0.39
2114 0.43
2185 0.47
2331 0.57
2484 0.68
2641 0.80
2803 0.94
2972 1.09
3147 1.27
3327 1.48
3512 1.72
3699 1.98
3890 2.28
4082 2.60
Max. BHP = 0.045 (RPM÷1000)3
CFM
688
774
860
946
1032
1204
1376
1548
1720
1892
2064
2236
2408
2580
2752
2924
MAXIMUM RPM:
0.50" SP
RPM BHP
1242 0.09
1321 0.10
1402 0.12
1486 0.14
1574 0.16
1756 0.22
1945 0.28
2138 0.37
2335 0.47
2535 0.59
2737 0.73
2941 0.89
3146 1.08
3352 1.30
3560 1.54
3768 1.81
Tip Speed - 3.21 x RPM
2.5" SP
3" SP
3.5" SP
4" SP
4.5" SP
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
2161 0.43
2184 0.46 2371 0.57
2227 0.49 2398 0.61 2567 0.73 2731 0.86
2283 0.54 2442 0.65 2597 0.78 2752 0.91 2903 1.04
2344 0.58 2497 0.70 2643 0.83 2786 0.96 2928 1.10
2485 0.69 2625 0.82 2761 0.95 2892 1.09 3019 1.24
2633 0.82 2770 0.96 2899 1.10 3020 1.25 3139 1.40
2786 0.96 2920 1.12 3045 1.27 3164 1.43 3277 1.59
2943 1.11 3074 1.29 3196 1.46 3312 1.63 3423 1.81
3104 1.28 3231 1.47 3351 1.66 3465 1.86 3572 2.04
3271 1.46 3392 1.67 3509 1.88 3620 2.09 3726 2.30
3445 1.68 3559 1.89 3671 2.11 3779 2.34 3883 2.57
3623 1.93 3731 2.14 3837 2.37 3941 2.61 4042 2.85
3806 2.21 3908 2.43 4009 2.66 4108 2.91 4205 3.16
3991 2.51 4090 2.75 4185 2.99 4279 3.24 4372 3.50
4179 2.85 4274 3.10 4366 3.36 4456 3.61 4544 3.88
Selections above 4000 RPM not recommended. Consult factory.
BAE SWSI 135 & BAV 135
Outlet Area - 1.05 ft2
0.25" SP
RPM BHP
886 0.05
953 0.07
1024 0.08
1098 0.10
1173 0.11
1326 0.16
1482 0.22
1641 0.29
1802 0.37
1964 0.48
2127 0.60
2291 0.74
2457 0.91
2622 1.10
2789 1.31
2955 1.55
Wheel Dia. - 13.50 inches
OV
800
900
1000
1100
1200
1400
1600
1800
2000
2200
2400
2600
2800
3000
3200
3400
CFM
2100
2310
2520
2730
2940
3150
3360
3570
3780
3990
4200
4410
5" SP
5.5" SP
6" SP
7" SP
8" SP
9" SP
10" SP
11" SP
12" SP
13" SP
14" SP
OV
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
2000 3027 2.24 3138 2.48 3256 2.75 3498 3.34
2200 3132 2.50 3227 2.72 3321 2.96 3525 3.50 3745 4.13 3962 4.82
2400 3244 2.77 3336 3.02 3426 3.27 3598 3.77 3781 4.33 3980 4.99 4182 5.72
2600 3362 3.08 3451 3.34 3537 3.60 3705 4.13 3864 4.67 4028 5.25 4207 5.93
2800 3483 3.40 3570 3.68 3654 3.95 3816 4.51 3971 5.09 4120 5.67
3000 3605 3.75 3692 4.05 3775 4.34 3932 4.93 4083 5.53 4229 6.15
3200 3727 4.11 3814 4.43 3897 4.75 4053 5.38 4200 6.01
3400 3851 4.50 3936 4.84 4019 5.18 4175 5.85
3600 3979 4.92 4061 5.27 4142 5.63
3800 4110 5.37 4188 5.73
4000 4245 5.85
4200
Class I — 3265
0.75" SP
RPM BHP
1185 0.13
1240 0.15
1298 0.18
1359 0.20
1420 0.23
1545 0.29
1680 0.36
1823 0.45
1972 0.55
2124 0.67
2278 0.81
2433 0.97
2590 1.15
2748 1.36
2908 1.59
3069 1.85
1" SP
1.5" SP
2" SP
2.5" SP
3" SP
3.5" SP
4" SP
4.5" SP
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
1327 0.19
1356 0.20 1617 0.33
1410 0.23 1628 0.34
1466 0.26 1660 0.37 1872 0.52
1526 0.29 1713 0.41 1891 0.54 2091 0.71
1648 0.36 1827 0.49 1986 0.64 2134 0.78 2300 0.97 2473 1.18
1773 0.44 1948 0.59 2100 0.75 2239 0.91 2370 1.08 2505 1.26 2653 1.48 2805 1.72
1906 0.53 2071 0.70 2221 0.88 2354 1.06 2479 1.24 2599 1.43 2713 1.61 2836 1.83
2048 0.64 2197 0.83 2343 1.02 2475 1.22 2596 1.42 2710 1.62 2819 1.82 2924 2.03
2195 0.77 2332 0.97 2467 1.18 2597 1.40 2717 1.61 2828 1.83 2933 2.05 3034 2.27
2346 0.92 2473 1.13 2597 1.35 2721 1.59 2839 1.82 2949 2.06 3052 2.30 3150 2.53
2498 1.08 2619 1.32 2734 1.55 2849 1.80 2962 2.05 3071 2.31 3174 2.57 3270 2.82
2652 1.27 2768 1.52 2876 1.77 2982 2.03 3089 2.30 3194 2.57 3296 2.85 3392 3.13
2808 1.49 2919 1.75 3022 2.02 3122 2.29 3221 2.57 3321 2.86 3419 3.16 3514 3.45
2965 1.73 3072 2.01 3171 2.30 3266 2.58 3359 2.87 3452 3.17 3546 3.48 3638 3.80
3123 2.00 3226 2.30 3322 2.60 3413 2.90 3501 3.21 3589 3.52 3677 3.84 3765 4.17
Class II — 4260
Performance certified is for installation Type B & D: Free
or ducted inlet, ducted outlet.
Power rating (BHP) does not include transmission losses.
Performance ratings do not include the effects of appurtenances (accessories).
17
Max. BHP = 0.081 (RPM÷1000)3
CFM
840
945
1050
1155
1260
1470
1680
1890
2100
2310
2520
2730
2940
3150
3360
3570
MAXIMUM RPM:
0.50" SP
RPM BHP
1050 0.09
1110 0.11
1171 0.13
1234 0.15
1298 0.17
1438 0.22
1586 0.29
1737 0.37
1891 0.46
2047 0.57
2205 0.70
2364 0.85
2525 1.03
2687 1.23
2849 1.45
3013 1.70
Tip Speed - 3.53 x RPM
Selections above 4000 RPM not recommended. Consult factory.
Legend:
Class I = Regular face to left of Class II
Class III = Italic face to right of Class II
Class II = Regular face in light shaded area Class IV= Italic face in darker shaded area
Max. Static Efficiency = Underlined
Twin City Bulletin 370
BAE SWSI 150 & BAV 150
Outlet Area - 1.29 ft2
0.25" SP
RPM BHP
874 0.08
947 0.09
1022 0.12
1099 0.14
1177 0.17
1337 0.24
1501 0.34
1667 0.45
1834 0.59
2003 0.76
2173 0.96
2344 1.19
2515 1.46
2687 1.77
2860 2.12
3033 2.52
Wheel Dia. - 15.00 inches
OV
800
900
1000
1100
1200
1400
1600
1800
2000
2200
2400
2600
2800
3000
3200
3400
CFM
2580
2838
3096
3354
3612
3870
4128
4386
4644
4902
5160
5418
5" SP
5.5" SP
6" SP
7" SP
8" SP
9" SP
10" SP
11" SP
12" SP
13" SP
14" SP
OV
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
2000 2882 2.97 2965 3.24 3044 3.51 3200 4.07 3351 4.67 3496 5.29 3637 5.93 3777 6.60 3916 7.29 4055 8.01 4192 8.75
2200 3003 3.35 3084 3.64 3163 3.93 3312 4.52 3453 5.12 3593 5.76 3729 6.43 3860 7.11 3988 7.82 4115 8.55 4242 9.31
2400 3126 3.76 3206 4.07 3283 4.38 3430 5.01 3569 5.66 3700 6.31 3829 6.98 3956 7.69 4080 8.42 4200 9.17
2600 3253 4.20 3331 4.54 3407 4.87 3551 5.55 3687 6.22 3818 6.92 3941 7.62 4060 8.33 4180 9.08
2800 3382 4.66 3459 5.03 3533 5.39 3674 6.11 3808 6.84 3936 7.57 4059 8.31 4176 9.06
3000 3512 5.13 3588 5.53 3661 5.93 3800 6.72 3932 7.49 4058 8.27 4179 9.05
3200 3646 5.66 3719 6.07 3791 6.50 3928 7.34 4058 8.18 4182 9.01
3400 3783 6.23 3854 6.66 3923 7.10 4058 8.00 4186 8.90
3600 3924 6.86 3992 7.30 4058 7.75 4189 8.68
3800 4069 7.57 4133 8.01 4197 8.47
4000 4215 8.34
4200
Class I — 3260
0.75" SP
RPM BHP
1131 0.18
1192 0.21
1255 0.24
1320 0.28
1386 0.31
1524 0.40
1670 0.52
1822 0.66
1978 0.82
2136 1.01
2296 1.24
2459 1.49
2623 1.79
2789 2.12
2955 2.50
3123 2.92
1" SP
RPM BHP
1233 0.23
1292 0.27
1353 0.31
1415 0.35
1479 0.39
1610 0.49
1748 0.61
1893 0.75
2044 0.93
2198 1.14
2355 1.37
2514 1.64
2675 1.95
2838 2.30
3002 2.68
3167 3.12
1.5" SP
RPM BHP
1420 0.35
1468 0.39
1522 0.44
1581 0.49
1642 0.55
1766 0.67
1895 0.81
2029 0.97
2170 1.16
2316 1.38
2466 1.64
2619 1.94
2774 2.27
2932 2.64
3091 3.05
3252 3.51
Class II — 4253
2" SP
RPM BHP
1594 0.49
1629 0.53
1675 0.58
1727 0.64
1784 0.71
1904 0.85
2029 1.02
2158 1.21
2290 1.41
2427 1.64
2571 1.91
2718 2.22
2869 2.58
3022 2.98
3178 3.42
3335 3.90
Max. BHP = 0.125 (RPM÷1000)3
CFM
1032
1161
1290
1419
1548
1806
2064
2322
2580
2838
3096
3354
3612
3870
4128
4386
MAXIMUM RPM:
0.50" SP
RPM BHP
1015 0.13
1079 0.15
1145 0.18
1214 0.20
1285 0.24
1434 0.32
1589 0.43
1747 0.55
1908 0.71
2071 0.89
2236 1.10
2402 1.34
2570 1.62
2739 1.95
2908 2.31
3078 2.72
Tip Speed - 3.93 x RPM
2.5" SP
3" SP
3.5" SP
4" SP
4.5" SP
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
1765 0.64
1784 0.69 1936 0.85
1819 0.74 1958 0.91 2096 1.09 2231 1.29
1864 0.80 1994 0.98 2121 1.16 2247 1.36 2371 1.57
1915 0.87 2040 1.05 2159 1.24 2275 1.44 2391 1.65
2029 1.04 2144 1.23 2255 1.42 2362 1.63 2465 1.85
2150 1.23 2263 1.44 2368 1.65 2467 1.87 2564 2.10
2276 1.44 2385 1.67 2487 1.91 2584 2.14 2677 2.39
2404 1.67 2511 1.93 2611 2.19 2705 2.45 2796 2.71
2536 1.92 2640 2.21 2738 2.50 2830 2.78 2918 3.07
2672 2.20 2771 2.50 2866 2.82 2957 3.14 3044 3.45
2814 2.52 2907 2.83 2998 3.17 3087 3.51 3172 3.86
2960 2.89 3048 3.21 3134 3.55 3219 3.91 3302 4.28
3109 3.31 3193 3.65 3275 3.99 3355 4.36 3435 4.74
3260 3.77 3341 4.13 3419 4.49 3496 4.86 3571 5.25
3414 4.28 3491 4.66 3566 5.03 3640 5.42 3712 5.82
Selections above 4000 RPM not recommended. Consult factory.
BAE SWSI 165 & BAV 165
Outlet Area - 1.57 ft2
0.25" SP
RPM BHP
726 0.08
780 0.10
838 0.12
899 0.14
960 0.17
1086 0.24
1214 0.32
1344 0.43
1475 0.56
1608 0.71
1742 0.90
1876 1.11
2012 1.36
2147 1.64
2284 1.96
2420 2.32
Wheel Dia. - 16.50 inches
OV
800
900
1000
1100
1200
1400
1600
1800
2000
2200
2400
2600
2800
3000
3200
3400
CFM
3140
3454
3768
4082
4396
4710
5024
5338
5652
5966
6280
6594
5" SP
5.5" SP
6" SP
7" SP
8" SP
9" SP
10" SP
11" SP
12" SP
13" SP
14" SP
OV
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
2000 2478 3.35 2568 3.70 2664 4.10 2862 4.99
2200 2564 3.73 2641 4.07 2718 4.42 2885 5.23 3064 6.17 3241 7.19
2400 2655 4.15 2730 4.51 2804 4.88 2945 5.63 3094 6.47 3257 7.46 3422 8.55
2600 2752 4.60 2825 4.99 2895 5.38 3032 6.18 3162 6.98 3296 7.85 3443 8.87
2800 2851 5.09 2922 5.50 2991 5.92 3123 6.75 3251 7.61 3372 8.47
3000 2951 5.61 3022 6.05 3090 6.49 3219 7.38 3342 8.27 3461 9.19
3200 3051 6.15 3122 6.63 3190 7.10 3317 8.04 3438 8.99
3400 3153 6.74 3222 7.24 3290 7.74 3417 8.75
3600 3257 7.36 3324 7.88 3390 8.41
3800 3364 8.02 3429 8.57
4000 3476 8.75
4200
Class I — 2673
0.75" SP
RPM BHP
970 0.20
1015 0.23
1062 0.26
1112 0.30
1162 0.34
1264 0.43
1375 0.54
1493 0.67
1615 0.82
1739 1.00
1865 1.21
1992 1.45
2121 1.72
2251 2.03
2381 2.38
2513 2.77
1" SP
1.5" SP
2" SP
2.5" SP
3" SP
3.5" SP
4" SP
4.5" SP
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
1086 0.28
1110 0.30 1323 0.49
1154 0.34 1332 0.51
1200 0.38 1359 0.55 1532 0.77
1249 0.43 1402 0.61 1547 0.81 1711 1.07
1349 0.53 1496 0.74 1625 0.95 1747 1.17 1882 1.44 2023 1.76
1451 0.65 1595 0.89 1719 1.12 1833 1.37 1940 1.61 2050 1.88 2171 2.21 2295 2.57
1561 0.79 1695 1.05 1818 1.32 1927 1.58 2029 1.85 2127 2.13 2220 2.41 2321 2.73
1677 0.96 1799 1.24 1918 1.53 2026 1.83 2125 2.12 2218 2.42 2307 2.72 2393 3.03
1797 1.15 1909 1.45 2020 1.76 2126 2.09 2224 2.41 2315 2.74 2400 3.06 2483 3.39
1921 1.37 2025 1.69 2126 2.03 2227 2.37 2324 2.73 2414 3.08 2498 3.44 2578 3.79
2046 1.62 2144 1.97 2238 2.32 2332 2.69 2425 3.07 2514 3.45 2598 3.84 2677 4.22
2172 1.91 2266 2.28 2355 2.66 2442 3.04 2529 3.44 2615 3.85 2698 4.27 2777 4.68
2299 2.23 2390 2.63 2474 3.02 2556 3.43 2637 3.85 2719 4.28 2799 4.72 2877 5.17
2427 2.59 2515 3.01 2596 3.44 2674 3.87 2750 4.30 2826 4.75 2903 5.21 2978 5.68
2557 2.99 2641 3.44 2720 3.89 2794 4.34 2867 4.80 2938 5.27 3010 5.75 3082 6.24
Class II — 3487
Performance certified is for installation Type B & D: Free
or ducted inlet, ducted outlet.
Power rating (BHP) does not include transmission losses.
Performance ratings do not include the effects of appurtenances (accessories).
18
Max. BHP = 0.222 (RPM÷1000)3
CFM
1256
1413
1570
1727
1884
2198
2512
2826
3140
3454
3768
4082
4396
4710
5024
5338
MAXIMUM RPM:
0.50" SP
RPM BHP
859 0.14
909 0.16
959 0.19
1010 0.22
1063 0.25
1177 0.33
1298 0.43
1422 0.55
1548 0.69
1676 0.86
1805 1.05
1936 1.28
2068 1.54
2200 1.84
2333 2.17
2467 2.55
Tip Speed - 4.32 x RPM
Legend:
Class I = Regular face to left of Class II
Class III = Italic face to right of Class II
Class II = Regular face in light shaded area Class IV= Italic face in darker shaded area
Max. Static Efficiency = Underlined
Twin City Bulletin 370
BAE SWSI 182 & BAV 182
Outlet Area - 1.92 ft2
Wheel Dia. - 18.25 inches
Tip Speed - 4.78 x RPM
Max. BHP = 0.44 (RPM÷1000)3
CFM
1536
1728
1920
2304
2688
3072
3456
3840
4224
4608
4992
5376
5760
6528
7296
8064
OV
800
900
1000
1200
1400
1600
1800
2000
2200
2400
2600
2800
3000
3400
3800
4200
0.50" SP
1" SP
1.5" SP
2" SP
3" SP
4" SP
5" SP
6" SP
7" SP
8" SP
9" SP
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
713 0.16
753 0.19 947 0.36
794 0.22 964 0.39 1151 0.62
881 0.29 1036 0.49 1175 0.70 1333 0.98
973 0.38 1117 0.61 1241 0.84 1360 1.09
1068 0.48 1202 0.74 1321 1.01 1426 1.27 1644 1.89
1168 0.61 1292 0.90 1403 1.20 1506 1.50 1690 2.11 1893 2.86
1272 0.77 1385 1.08 1490 1.41 1588 1.74 1763 2.41 1929 3.12 2116 3.99 2302 4.97
1377 0.95 1480 1.29 1581 1.65 1673 2.01 1843 2.75 1994 3.48 2147 4.29 2318 5.26 2490 6.33
1484 1.17 1579 1.53 1673 1.92 1761 2.31 1924 3.11 2071 3.91 2208 4.72 2350 5.62 2507 6.67 2666 7.83
1593 1.42 1680 1.81 1768 2.22 1852 2.64 2008 3.50 2152 4.37 2283 5.23 2408 6.11 2540 7.10 2684 8.22 2832 9.46
1702 1.71 1784 2.12 1865 2.55 1945 3.00 2095 3.92 2233 4.85 2363 5.80 2482 6.72 2598 7.67 2720 8.73 2852 9.92
1813 2.04 1889 2.48 1964 2.93 2040 3.41 2185 4.39 2318 5.38 2443 6.38 2561 7.39 2671 8.37 2780 9.40 2893 10.52
2035 2.83 2102 3.32 2169 3.82 2236 4.35 2369 5.44 2494 6.55 2611 7.67 2723 8.81 2831 9.96 2932 11.09 3028 12.20
2260 3.82 2320 4.36 2380 4.91 2439 5.48 2559 6.67 2676 7.90 2787 9.14 2893 10.40 2994 11.66 3093 12.95 3187 14.22
2485 5.02 2540 5.62 2594 6.22 2648 6.84 2756 8.12 2864 9.45 2970 10.83 3070 12.20 3167 13.59 3260 14.98 3350 16.38
CFM
4608
4992
5376
5760
6144
6528
6912
7296
7680
8064
8832
9600
10" SP
11" SP
12" SP
13" SP
14" SP
15" SP
16" SP
17" SP
18" SP
19" SP
20" SP
OV
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
2400
2600 2973 10.74
2800 2989 11.21 3125 12.59
3000 3014 11.76 3141 13.11 3269 14.55 3393 16.03
3200 3060 12.47 3171 13.75 3289 15.16 3409 16.65 3528 18.20 3643 19.79
3400 3124 13.36 3222 14.58 3324 15.90 3433 17.35 3546 18.89 3659 20.50 3770 22.16 3878 23.86
3600 3198 14.37 3289 15.60 3380 16.86 3475 18.22 3575 19.69 3680 21.27 3787 22.94 3894 24.66 3999 26.43
3800 3277 15.48 3364 16.73 3449 18.00 3536 19.33 3624 20.72 3717 22.23 3813 23.82 3913 25.51 4015 27.29
4000 3358 16.63 3443 17.95 3525 19.26 3607 20.60 3689 21.98 3772 23.42 3857 24.93 3947 26.56 4040 28.27
4200 3438 17.80 3523 19.21 3605 20.60 3684 21.99 3762 23.39 3839 24.80 3917 26.27 3997 27.81 4080 29.45
4600 3604 20.30 3686 21.85 3766 23.39 3844 24.94 3919 26.46 3992 27.98 4064 29.51
5000 3776 23.05 3854 24.70 3931 26.37 4006 28.05 4080 29.73
MAXIMUM RPM: Class I — 2207 Class II — 2879 Class III — 3628 Class IV — 4080 Selections above 4000 RPM not recommended. Consult factory.
BAE SWSI 200 & BAV 200
Outlet Area - 2.30 ft2
Wheel Dia. - 20.00 inches
Tip Speed - 5.24 x RPM
Max. BHP = 0.695 (RPM÷1000)3
CFM
1840
2070
2300
2760
3220
3680
4140
4600
5060
5520
5980
6440
6900
7820
8740
9660
OV
800
900
1000
1200
1400
1600
1800
2000
2200
2400
2600
2800
3000
3400
3800
4200
0.50" SP
1" SP
1.5" SP
2" SP
3" SP
4" SP
5" SP
6" SP
7" SP
8" SP
9" SP
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
650 0.19
686 0.22 864 0.43
723 0.26 879 0.47 1050 0.75
802 0.34 944 0.58 1071 0.84 1216 1.17
886 0.45 1018 0.73 1131 1.01 1240 1.31
973 0.58 1096 0.89 1204 1.21 1300 1.53 1500 2.27
1064 0.73 1177 1.08 1279 1.43 1373 1.80 1541 2.52 1727 3.44
1158 0.92 1262 1.29 1358 1.69 1447 2.09 1607 2.88 1759 3.74 1930 4.78 2100 5.96
1254 1.14 1348 1.54 1440 1.97 1524 2.40 1679 3.29 1817 4.16 1958 5.14 2115 6.30 2272 7.60
1352 1.40 1438 1.83 1524 2.29 1605 2.76 1753 3.72 1888 4.68 2013 5.65 2143 6.73 2287 8.00 2432 9.39
1450 1.69 1530 2.16 1610 2.65 1688 3.16 1830 4.18 1961 5.23 2081 6.26 2196 7.32 2316 8.50 2448 9.86 2583 11.33
1550 2.04 1624 2.53 1698 3.05 1772 3.59 1909 4.69 2035 5.81 2153 6.93 2262 8.04 2369 9.19 2481 10.46 2602 11.89
1650 2.43 1720 2.96 1789 3.50 1858 4.07 1990 5.24 2112 6.43 2227 7.64 2334 8.84 2435 10.03 2535 11.26 2638 12.60
1853 3.38 1914 3.96 1975 4.56 2036 5.19 2158 6.50 2272 7.83 2379 9.17 2482 10.55 2580 11.92 2672 13.26 2760 14.60
2057 4.55 2112 5.20 2167 5.87 2221 6.54 2331 7.97 2438 9.45 2540 10.94 2636 12.44 2729 13.96 2818 15.48 2905 17.02
2262 5.99 2312 6.70 2362 7.43 2412 8.17 2510 9.70 2609 11.30 2706 12.95 2797 14.59 2885 16.25 2970 17.92 3053 19.61
CFM
5520
5980
6440
6900
7360
7820
8280
8740
9200
9660
10580
11500
10" SP
11" SP
12" SP
13" SP
14" SP
15" SP
16" SP
17" SP
18" SP
19" SP
20" SP
OV
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
2400
2600 2713 12.89
2800 2727 13.44 2851 15.10
3000 2749 14.09 2866 15.73 2983 17.45 3096 19.23
3200 2790 14.93 2892 16.48 3000 18.17 3110 19.96 3219 21.83 3324 23.75
3400 2848 15.99 2938 17.47 3032 19.06 3131 20.79 3234 22.63 3338 24.58 3440 26.58 3538 28.62
3600 2915 17.20 2998 18.67 3082 20.20 3169 21.84 3261 23.61 3357 25.51 3455 27.50 3552 29.56 3648 31.68
3800 2987 18.53 3066 20.02 3144 21.55 3223 23.14 3305 24.84 3389 26.62 3478 28.55 3570 30.59 3663 32.72
4000 3060 19.90 3138 21.48 3213 23.05 3288 24.66 3363 26.32 3439 28.04 3517 29.86 3599 31.80 3685 33.88
4200 3133 21.29 3211 22.99 3286 24.66 3358 26.32 3429 27.99 3500 29.70 3571 31.46 3645 33.33 3721 35.30
4600 3284 24.29 3359 26.14 3432 27.99 3503 29.84 3572 31.67 3639 33.50 3704 35.31
5000 3440 27.56 3512 29.56 3582 31.55 3651 33.57 3719 35.60
MAXIMUM RPM: Class I — 2014Class II — 2627Class III — 3310Class IV — 3723
Performance certified is for installation Type B & D: Free
or ducted inlet, ducted outlet.
Power rating (BHP) does not include transmission losses.
Performance ratings do not include the effects of appurtenances (accessories).
19
Legend:
Class I = Regular face to left of Class II
Class III = Italic face to right of Class II
Class II = Regular face in light shaded area Class IV= Italic face in darker shaded area
Max. Static Efficiency = Underlined
Twin City Bulletin 370
BAE SWSI 222 & BAV 222
Outlet Area - 2.85 ft2
0.50" SP
RPM BHP
582 0.23
615 0.28
649 0.32
721 0.43
799 0.57
880 0.75
964 0.96
1051 1.22
1139 1.52
1229 1.89
1319 2.31
1410 2.79
1502 3.35
1687 4.68
1873 6.35
2061 8.40
Wheel Dia. - 22.25 inches
Tip Speed - 5.84 x RPM
Max. BHP = 1.19 (RPM÷1000)3
CFM
2280
2565
2850
3420
3990
4560
5130
5700
6270
6840
7410
7980
8550
9690
10830
11970
OV
800
900
1000
1200
1400
1600
1800
2000
2200
2400
2600
2800
3000
3400
3800
4200
CFM
6840
7410
7980
8550
9120
9690
10260
10830
11400
11970
13110
14250
10" SP
11" SP
12" SP
13" SP
14" SP
15" SP
16" SP
17" SP
18" SP
19" SP
20" SP
OV
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
2400
2600 2378 14.91
2800 2404 15.85 2502 17.56 2600 19.34
3000 2442 16.96 2532 18.65 2623 20.43 2715 22.30 2807 24.24
3200 2491 18.22 2573 19.91 2657 21.69 2742 23.54 2828 25.48 2914 27.49 3000 29.57
3400 2548 19.64 2624 21.34 2701 23.11 2780 24.98 2860 26.92 2940 28.91 3020 30.96 3101 33.10 3182 35.31
3600 2611 21.21 2683 22.94 2755 24.74 2827 26.58 2901 28.52 2975 30.50 3051 32.58 3127 34.72 3203 36.91 3279 39.16
3800 2676 22.87 2747 24.70 2815 26.52 2883 28.39 2951 30.31 3020 32.30 3090 34.36 3161 36.50 3233 38.71 3305 40.97
4000 2742 24.59 2812 26.53 2879 28.45 2944 30.36 3008 32.29 3073 34.30 3138 36.36 3204 38.49 3271 40.69 3339 42.96
4200 2809 26.40 2878 28.44 2944 30.45 3008 32.46 3071 34.49 3132 36.50 3193 38.55 3255 40.69 3317 42.87
4600 2947 30.29 3012 32.47 3077 34.70 3140 36.93 3201 39.14 3260 41.33 3318 43.54
5000 3090 34.59 3153 36.96 3214 39.32 3275 41.74 3334 44.13
MAXIMUM RPM:
1" SP
1.5" SP
2" SP
3" SP
4" SP
5" SP
6" SP
7" SP
8" SP
9" SP
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
750 0.46
763 0.51
784 0.57 920 0.86
846 0.72 955 1.02 1068 1.37
913 0.90 1013 1.24 1106 1.59 1300 2.42
984 1.12 1079 1.50 1165 1.88 1329 2.71 1500 3.70
1060 1.37 1148 1.79 1230 2.22 1377 3.09 1525 4.07 1678 5.19
1138 1.66 1220 2.12 1298 2.59 1439 3.55 1569 4.54 1703 5.65 1841 6.90
1219 2.00 1296 2.50 1369 3.01 1505 4.07 1627 5.12 1745 6.23 1867 7.46 1992 8.80
1302 2.39 1374 2.93 1443 3.49 1572 4.62 1692 5.78 1801 6.93 1909 8.16 2021 9.49 2135 10.93 2250 12.47
1387 2.84 1454 3.41 1519 4.01 1643 5.23 1758 6.48 1864 7.72 1964 8.98 2064 10.31 2167 11.75 2272 13.28
1474 3.36 1536 3.96 1598 4.60 1715 5.90 1826 7.23 1930 8.58 2026 9.91 2119 11.28 2211 12.70 2307 14.24
1562 3.95 1620 4.58 1678 5.24 1790 6.63 1896 8.04 1996 9.47 2092 10.93 2181 12.36 2267 13.81 2353 15.33
1740 5.36 1792 6.05 1844 6.78 1945 8.30 2043 9.89 2136 11.48 2226 13.10 2312 14.74 2394 16.37 2472 17.99
1921 7.10 1968 7.86 2015 8.65 2107 10.31 2197 12.05 2283 13.80 2367 15.59 2448 17.38 2527 19.21 2603 21.04
2104 9.21 2147 10.05 2190 10.91 2274 12.69 2356 14.55 2437 16.48 2516 18.44 2592 20.40 2666 22.38 2738 24.37
Class I — 1814
Class II — 2367
Class III — 2982
Class IV — 3347
BAE SWSI 245 & BAV 245
Outlet Area - 3.45 ft2
0.50" SP
RPM BHP
528 0.28
558 0.34
589 0.39
655 0.53
725 0.70
798 0.90
875 1.16
953 1.47
1033 1.84
1114 2.28
1196 2.78
1279 3.37
1362 4.04
1530 5.66
1699 7.67
1869 10.14
Wheel Dia. - 24.50 inches
Max. BHP = 1.93 (RPM÷1000)3
CFM
2760
3105
3450
4140
4830
5520
6210
6900
7590
8280
8970
9660
10350
11730
13110
14490
OV
800
900
1000
1200
1400
1600
1800
2000
2200
2400
2600
2800
3000
3400
3800
4200
CFM
8280
8970
9660
10350
11040
11730
12420
13110
13800
14490
15870
17250
10" SP
11" SP
12" SP
13" SP
14" SP
15" SP
16" SP
17" SP
18" SP
19" SP
20" SP
OV
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
2400
2600 2159 18.05
2800 2183 19.20 2272 21.27 2361 23.42
3000 2217 20.53 2299 22.59 2382 24.75 2465 26.99 2549 29.36
3200 2261 22.05 2336 24.11 2412 26.25 2490 28.52 2568 30.87 2646 33.29 2724 35.80
3400 2313 23.78 2382 25.83 2452 27.98 2524 30.25 2596 32.57 2669 34.99 2742 37.48 2816 40.09 2890 42.79
3600 2370 25.67 2435 27.76 2500 29.91 2566 32.16 2633 34.50 2701 36.93 2770 39.45 2839 42.03 2908 44.68 2978 47.45
3800 2429 27.68 2493 29.89 2555 32.10 2616 34.33 2678 36.66 2741 39.08 2805 41.59 2870 44.20 2935 46.86 3000 49.57
4000 2489 29.78 2552 32.10 2612 34.39 2672 36.74 2730 39.07 2789 41.50 2848 43.99 2908 46.56 2969 49.23 3031 52.00
4200 2549 31.94 2612 34.41 2672 36.85 2730 39.27 2787 41.72 2843 44.18 2898 46.65 2954 49.22 3011 51.89
4600 2674 36.64 2733 39.27 2792 41.97 2849 44.65 2905 47.36 2959 50.03 3011 52.67
5000 2804 41.85 2861 44.71 2917 47.59 2971 50.45 3025 53.36
MAXIMUM RPM:
1" SP
1.5" SP
2" SP
3" SP
4" SP
5" SP
6" SP
7" SP
8" SP
9" SP
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
681 0.56
692 0.62
712 0.69 836 1.04
768 0.87 866 1.23 969 1.65
828 1.09 919 1.50 1004 1.92 1181 2.93
893 1.35 979 1.81 1057 2.28 1206 3.28 1362 4.48
961 1.65 1041 2.16 1116 2.68 1250 3.74 1385 4.93 1524 6.29
1032 2.00 1107 2.56 1178 3.14 1306 4.30 1424 5.50 1546 6.84 1671 8.34
1106 2.41 1176 3.02 1242 3.64 1366 4.92 1477 6.20 1584 7.55 1695 9.03 1809 10.67
1181 2.88 1246 3.54 1309 4.21 1427 5.59 1535 6.99 1634 8.38 1733 9.87 1835 11.50 1939 13.25 2043 15.10
1258 3.43 1319 4.12 1378 4.85 1490 6.32 1595 7.83 1692 9.35 1782 10.86 1873 12.47 1968 14.24 2063 16.08
1337 4.06 1394 4.79 1450 5.56 1556 7.13 1657 8.75 1751 10.37 1839 12.00 1923 13.64 2007 15.37 2094 17.23
1416 4.77 1470 5.54 1522 6.34 1624 8.02 1720 9.72 1812 11.47 1898 13.21 1979 14.95 2058 16.73 2136 18.56
1578 6.47 1626 7.32 1673 8.20 1765 10.05 1853 11.95 1938 13.88 2020 15.85 2098 17.83 2173 19.82 2244 21.79
1742 8.57 1785 9.50 1828 10.46 1911 12.45 1993 14.56 2072 16.70 2148 18.86 2222 21.05 2293 23.24 2362 25.45
1908 11.12 1947 12.13 1986 13.18 2062 15.32 2137 17.58 2211 19.93 2282 22.28 2351 24.65 2419 27.07 2485 29.50
Class I — 1647
Class II — 2149
Performance certified is for installation Type B & D: Free
or ducted inlet, ducted outlet.
Power rating (BHP) does not include transmission losses.
Performance ratings do not include the effects of appurtenances (accessories).
20
Tip Speed - 6.41 x RPM
Class III — 2708
Class IV — 3039
Legend:
Class I = Regular face to left of Class II
Class III = Italic face to right of Class II
Class II = Regular face in light shaded area Class IV= Italic face in darker shaded area
Max. Static Efficiency = Underlined
Twin City Bulletin 370
BAE SWSI 270 & BAV 270
Outlet Area - 4.19 ft2
Wheel Dia. - 27.00 inches
Tip Speed - 7.07 x RPM
Max. BHP = 3.07 (RPM÷1000)3
CFM
3352
3771
4190
5028
5866
6704
7542
8380
9218
10056
10894
11732
12570
14246
15922
17598
OV
800
900
1000
1200
1400
1600
1800
2000
2200
2400
2600
2800
3000
3400
3800
4200
0.50" SP
RPM BHP
479 0.34
503 0.39
529 0.45
588 0.60
649 0.78
714 1.00
781 1.26
851 1.59
921 1.97
993 2.42
1065 2.94
1139 3.55
1212 4.23
1361 5.88
1511 7.94
1661 10.44
1" SP
1.5" SP
2" SP
3" SP
4" SP
5" SP
6" SP
7" SP
8" SP
9" SP
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
618 0.67
632 0.74 749 1.14
649 0.82 759 1.25 863 1.71
693 1.02 790 1.48 882 1.98 1055 3.08
744 1.26 832 1.76 915 2.30 1072 3.50 1219 4.79
802 1.54 881 2.10 957 2.68 1101 3.95 1236 5.35 1365 6.81
862 1.87 936 2.49 1005 3.12 1138 4.46 1263 5.92 1383 7.51 1499 9.15 1611 10.86
925 2.24 994 2.92 1058 3.61 1181 5.05 1298 6.58 1410 8.23 1518 9.98 1623 11.79 1726 13.67
989 2.67 1055 3.42 1115 4.16 1230 5.72 1339 7.32 1445 9.05 1546 10.86 1645 12.78 1741 14.76 1835 16.77
1056 3.17 1117 3.97 1175 4.79 1283 6.45 1386 8.18 1485 9.96 1581 11.84 1674 13.82 1765 15.90 1853 18.01
1124 3.74 1181 4.59 1236 5.47 1339 7.26 1435 9.07 1529 10.96 1620 12.90 1709 14.96 1795 17.09 1880 19.34
1193 4.39 1247 5.29 1299 6.23 1397 8.13 1489 10.07 1578 12.08 1664 14.11 1748 16.20 1831 18.42 1911 20.70
1263 5.12 1314 6.07 1363 7.06 1458 9.11 1545 11.15 1629 13.25 1712 15.42 1792 17.61 1871 19.88 1948 22.22
1406 6.87 1451 7.91 1495 8.99 1582 11.28 1664 13.60 1741 15.92 1815 18.26 1889 20.71 1961 23.16 2032 25.67
1552 9.05 1592 10.18 1632 11.35 1710 13.81 1787 16.40 1860 18.99 1929 21.58 1996 24.19 2062 26.86 2128 29.62
1699 11.67 1735 12.89 1772 14.18 1843 16.80 1914 19.60 1982 22.44 2048 25.31 2112 28.20 2173 31.07 2233 33.98
CFM
10056
10894
11732
12570
13408
14246
15084
15922
16760
17598
19274
20950
OV
2400
2600
2800
3000
3200
3400
3600
3800
4000
4200
4600
5000
10" SP
RPM BHP
1941 20.21
1962 21.60
1990 23.07
2023 24.64
2060 26.34
2101 28.20
2145 30.21
2192 32.35
2241 34.59
2293 36.97
2402 42.09
2518 47.82
11" SP
RPM BHP
2027 22.44
2043 23.93
2067 25.49
2097 27.15
2131 28.90
2169 30.81
2211 32.91
2255 35.12
2302 37.48
2352 39.99
2457 45.31
2570 51.27
MAXIMUM RPM:
Class I — 1474
12" SP
13" SP
14" SP
15" SP
16" SP
17" SP
18" SP
19" SP
20" SP
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
2111 24.71
2124 26.33 2203 28.75 2280 31.19 2356 33.71
2144 28.01 2219 30.54 2293 33.08 2367 35.71 2439 38.34 2510 41.04
2170 29.73 2242 32.37 2312 35.02 2383 37.78 2452 40.50 2521 43.30 2588 46.08 2655 48.96 2721 51.91
2201 31.55 2270 34.27 2338 37.04 2405 39.86 2471 42.71 2537 45.62 2602 48.54 2667 51.52 2731 54.52
2237 33.54 2303 36.31 2368 39.14 2433 42.07 2497 45.04 2560 48.04 2622 51.06 2684 54.15 2745 57.22
2276 35.67 2340 38.51 2403 41.42 2465 44.38 2526 47.39 2587 50.49 2647 53.62 2707 56.83
2318 37.97 2379 40.83 2440 43.79 2501 46.87 2560 49.95 2619 53.13 2677 56.34 2734 59.57
2363 40.43 2422 43.37 2481 46.40 2539 49.48 2597 52.66 2654 55.89 2710 59.16
2410 43.01 2468 46.10 2525 49.21 2581 52.34 2636 55.51 2692 58.84 2746 62.14
2511 48.55 2565 51.86 2619 55.22 2672 58.57 2724 61.92
2621 54.74 2671 58.21 2721 61.75
Class II — 1923
Class III — 2423
Class IV — 2756
BAE SWSI 300 & BAV 300
Outlet Area - 5.17 ft2
Wheel Dia. - 30.00 inches
Max. BHP = 5.21 (RPM÷1000)3
CFM
4136
4653
5170
6204
7238
8272
9306
10340
11374
12408
13442
14476
15510
17578
19646
21714
OV
800
900
1000
1200
1400
1600
1800
2000
2200
2400
2600
2800
3000
3400
3800
4200
0.50" SP
RPM BHP
431 0.41
452 0.48
476 0.56
529 0.74
584 0.96
643 1.23
703 1.56
765 1.96
829 2.43
893 2.98
958 3.63
1024 4.37
1090 5.21
1224 7.25
1359 9.79
1495 12.90
1" SP
1.5" SP
2" SP
3" SP
4" SP
5" SP
6" SP
7" SP
8" SP
9" SP
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
556 0.82
568 0.91 674 1.41
584 1.01 683 1.54 777 2.11
623 1.26 711 1.82 794 2.45 950 3.81
670 1.55 749 2.18 824 2.84 965 4.32 1097 5.91
721 1.90 793 2.59 861 3.31 990 4.86 1112 6.59 1229 8.41
776 2.31 842 3.07 904 3.84 1024 5.50 1137 7.32 1244 9.25 1349 11.29 1450 13.41
832 2.76 894 3.60 952 4.45 1063 6.23 1168 8.11 1269 10.16 1366 12.31 1461 14.56 1553 16.86
890 3.29 949 4.22 1004 5.15 1107 7.06 1205 9.04 1300 11.15 1392 13.42 1480 15.76 1567 18.22 1652 20.72
950 3.91 1005 4.90 1057 5.91 1154 7.95 1247 10.09 1336 12.28 1423 14.62 1506 17.04 1588 19.60 1668 22.24
1011 4.61 1062 5.65 1112 6.75 1205 8.96 1292 11.22 1376 13.53 1458 15.93 1538 18.46 1616 21.12 1691 23.83
1073 5.41 1121 6.51 1169 7.69 1257 10.03 1340 12.44 1420 14.91 1497 17.40 1573 20.00 1647 22.71 1720 25.56
1137 6.33 1182 7.49 1226 8.70 1311 11.22 1390 13.75 1466 16.35 1540 19.01 1612 21.70 1683 24.50 1753 27.43
1265 8.48 1305 9.75 1345 11.09 1423 13.90 1497 16.77 1566 19.62 1633 22.53 1699 25.52 1764 28.55 1828 31.65
1396 11.15 1432 12.55 1468 14.00 1539 17.05 1607 20.20 1673 23.41 1736 26.63 1796 29.85 1856 33.18 1914 36.50
1528 14.38 1561 15.90 1594 17.48 1658 20.72 1722 24.18 1783 27.67 1843 31.24 1900 34.77 1955 38.32 2009 41.91
CFM
12408
13442
14476
15510
16544
17578
18612
19646
20680
21714
23782
25850
OV
2400
2600
2800
3000
3200
3400
3600
3800
4000
4200
4600
5000
10" SP
RPM BHP
1747 24.95
1766 26.68
1791 28.48
1821 30.44
1854 32.51
1891 34.82
1930 37.26
1972 39.89
2017 42.71
2063 45.60
2161 51.90
2265 58.95
11" SP
RPM BHP
1824 27.68
1839 29.56
1860 31.45
1887 33.50
1918 35.68
1952 38.03
1989 40.57
2029 43.32
2072 46.28
2116 49.31
2211 55.92
2312 63.22
MAXIMUM RPM:
Class I — 1327
12" SP
13" SP
14" SP
15" SP
16" SP
17" SP
18" SP
19" SP
20" SP
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
1900 30.50
1911 32.47 1982 35.44 2052 38.49 2121 41.64
1929 34.54 1997 37.68 2064 40.85 2130 44.05 2195 47.32 2259 50.66
1953 36.70 2017 39.91 2081 43.23 2144 46.58 2207 50.00 2269 53.44 2330 56.93 2390 60.47 2449 64.07
1981 38.95 2043 42.30 2104 45.71 2164 49.17 2224 52.73 2283 56.29 2342 59.92 2400 63.56 2458 67.30
2013 41.39 2072 44.78 2131 48.30 2189 51.88 2247 55.57 2303 59.22 2360 63.04 2415 66.78 2471 70.66
2048 44.01 2105 47.47 2162 51.08 2218 54.75 2273 58.47 2328 62.30 2382 66.16 2436 70.12
2086 46.86 2141 50.39 2196 54.06 2250 57.79 2304 61.66 2356 65.49 2409 69.52 2460 73.48
2126 49.87 2180 53.56 2233 57.29 2285 61.07 2337 64.98 2388 68.95 2439 73.03
2169 53.10 2221 56.89 2272 60.71 2322 64.54 2372 68.49 2422 72.56 2471 76.68
2260 59.95 2308 63.98 2356 68.07 2404 72.23 2451 76.39
2358 67.50 2403 71.79 2448 76.15
Class II — 1731
Performance certified is for installation Type B & D: Free
or ducted inlet, ducted outlet.
Power rating (BHP) does not include transmission losses.
Performance ratings do not include the effects of appurtenances (accessories).
21
Tip Speed - 7.85 x RPM
Class III — 2181
Class IV — 2480
Legend:
Class I = Regular face to left of Class II
Class III = Italic face to right of Class II
Class II = Regular face in light shaded area Class IV= Italic face in darker shaded area
Max. Static Efficiency = Underlined
Twin City Bulletin 370
BAE SWSI 330 & BAV 330
Outlet Area - 6.26 ft2
Wheel Dia. - 33.00 inches
Tip Speed - 8.64 x RPM
Max. BHP = 8.38 (RPM÷1000)3
CFM OV
5008 800
5634 900
6260 1000
7512 1200
8764 1400
10016 1600
11268 1800
12520 2000
13772 2200
15024 2400
16276 2600
17528 2800
18780 3000
21284 3400
23788 3800
26292 4200
0.50" SP
RPM BHP
392 0.50
411 0.58
433 0.67
481 0.90
531 1.16
584 1.49
639 1.89
696 2.37
754 2.95
813 3.63
872 4.40
932 5.30
992 6.32
1114 8.80
1236 11.86
1360 15.63
1" SP
1.5" SP
2" SP
3" SP
4" SP
5" SP
6" SP
7" SP
8" SP
9" SP
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
506 1.00
517 1.11 613 1.71
531 1.23 621 1.86 706 2.55
567 1.53 647 2.21 722 2.97 864 4.62
609 1.88 681 2.64 749 3.44 877 5.23 998 7.17
656 2.30 721 3.14 783 4.01 901 5.90 1011 7.98 1117 10.18
706 2.80 766 3.72 822 4.66 931 6.66 1034 8.87 1131 11.20 1226 13.66 1318 16.23
757 3.35 813 4.36 866 5.40 967 7.56 1062 9.82 1154 12.31 1242 14.91 1328 17.62 1412 20.41
810 4.00 863 5.11 913 6.24 1006 8.53 1096 10.95 1182 13.50 1265 16.23 1346 19.10 1424 22.03 1502 25.09
864 4.74 914 5.93 962 7.17 1049 9.62 1134 12.22 1215 14.87 1293 17.66 1370 20.66 1444 23.74 1517 26.96
920 5.59 966 6.85 1012 8.19 1095 10.82 1175 13.59 1251 16.37 1326 19.30 1398 22.34 1469 25.56 1538 28.88
976 6.55 1020 7.90 1063 9.31 1143 12.15 1218 15.04 1291 18.04 1362 21.10 1431 24.25 1498 27.52 1564 30.95
1034 7.67 1075 9.07 1115 10.54 1193 13.61 1264 16.65 1333 19.80 1401 23.05 1466 26.29 1531 29.71 1594 33.21
1151 10.28 1187 11.82 1223 13.42 1294 16.83 1361 20.29 1424 23.75 1485 27.28 1545 30.90 1604 34.57 1662 38.31
1270 13.52 1303 15.22 1335 16.95 1399 20.62 1462 24.49 1522 28.38 1578 32.21 1633 36.13 1687 40.12 1741 44.23
1390 17.43 1420 19.28 1450 21.19 1508 25.11 1566 29.28 1622 33.54 1676 37.83 1728 42.12 1778 46.41 1827 50.76
CFM OV
15024 2400
16276 2600
17528 2800
18780 3000
20032 3200
21284 3400
22536 3600
23788 3800
25040 4000
26292 4200
28796 4600
31300 5000
10" SP
RPM BHP
1588 30.19
1605 32.26
1628 34.46
1655 36.80
1686 39.38
1719 42.13
1755 45.13
1794 48.37
1834 51.71
1876 55.22
1966 62.94
2060 71.42
11" SP
RPM BHP
1658 33.49
1672 35.78
1692 38.14
1716 40.58
1744 43.21
1775 46.05
1809 49.16
1845 52.46
1884 56.03
1924 59.70
2011 67.76
2103 76.62
MAXIMUM RPM:
Class I — 1206
12" SP
13" SP
14" SP
15" SP
16" SP
17" SP
18" SP
19" SP
20" SP
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
1727 36.90
1738 39.35 1802 42.91 1866 46.63 1928 50.39
1754 41.83 1815 45.58 1876 49.42 1936 53.29 1995 57.24 2054 61.35
1775 44.38 1834 48.33 1892 52.34 1949 56.37 2006 60.49 2062 64.62 2118 68.90 2172 73.12 2226 77.52
1801 47.15 1857 51.17 1913 55.35 1968 59.57 2022 63.83 2076 68.19 2129 72.52 2182 76.96 2234 81.40
1830 50.09 1884 54.22 1938 58.52 1991 62.88 2043 67.28 2094 71.71 2145 76.26 2196 80.89 2246 85.49
1862 53.28 1914 57.48 1966 61.87 2017 66.32 2067 70.83 2117 75.47 2166 80.14 2215 84.92
1896 56.67 1947 61.04 1997 65.48 2046 70.00 2095 74.67 2143 79.39 2190 84.13 2237 89.01
1933 60.37 1982 64.83 2030 69.33 2078 73.98 2125 78.69 2171 83.45 2217 88.35
1972 64.27 2019 68.83 2066 73.52 2112 78.22 2157 82.95 2202 87.83 2247 92.87
2055 72.58 2099 77.50 2143 82.50 2186 87.47 2229 92.53
2144 81.71 2186 87.03 2226 92.21
Class II — 1573
Class III — 1982
Class IV — 2255
BAE SWSI 365 & BAV 365
Outlet Area - 7.66 ft2
CFM
6128
6894
7660
9192
10724
12256
13788
15320
16852
18384
19916
21448
22980
26044
29108
32172
OV
800
900
1000
1200
1400
1600
1800
2000
2200
2400
2600
2800
3000
3400
3800
4200
CFM OV
18384 2400
19916 2600
21448 2800
22980 3000
24512 3200
26044 3400
27576 3600
29108 3800
30640 4000
32172 4200
35236 4600
38300 5000
0.50" SP
RPM BHP
348 0.59
368 0.70
387 0.80
430 1.07
476 1.40
524 1.80
574 2.29
626 2.89
678 3.59
731 4.41
785 5.37
839 6.46
894 7.72
1004 10.72
1116 14.51
1227 19.06
Wheel Dia. - 36.50 inches
Max. BHP = 14.05 (RPM÷1000)3
1" SP
1.5" SP
2" SP
3" SP
4" SP
5" SP
6" SP
7" SP
8" SP
9" SP
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
449 1.22
457 1.32
470 1.45 551 2.27
506 1.82 572 2.62 640 3.60
545 2.24 606 3.13 663 4.08 778 6.38
587 2.75 645 3.74 697 4.76 797 7.04 898 9.78
632 3.35 685 4.42 735 5.55 825 7.88 914 10.58 1004 13.69
678 4.03 728 5.22 775 6.44 861 8.96 940 11.63 1021 14.74 1102 18.19 1182 21.75
726 4.83 773 6.13 817 7.44 900 10.19 974 12.98 1046 16.01 1120 19.47 1193 23.19 1266 27.10
775 5.74 819 7.14 861 8.57 939 11.48 1012 14.53 1078 17.60 1144 20.93 1212 24.70 1279 28.71 1347 33.00
826 6.80 866 8.27 906 9.81 980 12.92 1050 16.15 1115 19.46 1176 22.84 1237 26.47 1299 30.46 1362 34.82
877 7.98 915 9.57 952 11.18 1023 14.51 1090 17.93 1153 21.44 1212 25.00 1269 28.69 1325 32.55 1383 36.82
930 9.35 965 11.02 1000 12.74 1068 16.29 1132 19.91 1193 23.62 1251 27.42 1305 31.22 1358 35.17 1410 39.26
1036 12.55 1067 14.41 1098 16.31 1159 20.22 1218 24.25 1275 28.39 1329 32.53 1382 36.85 1432 41.17 1479 45.44
1144 16.51 1172 18.56 1199 20.62 1255 24.96 1309 29.36 1362 33.91 1413 38.52 1462 43.14 1510 47.88 1556 52.65
1253 21.29 1278 23.52 1303 25.79 1353 30.45 1403 35.27 1453 40.27 1500 45.22 1546 50.25 1591 55.35 1635 60.52
10" SP
11" SP
12" SP
13" SP
14" SP
15" SP
16" SP
17" SP
18" SP
19" SP
20" SP
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
1413 37.24
1424 39.32 1486 43.98 1548 48.66
1441 41.38 1499 46.17 1557 51.14 1614 56.12 1671 61.10
1464 43.74 1518 48.52 1572 53.53 1626 58.73 1680 64.07 1733 69.40 1787 74.83
1492 46.55 1542 51.19 1593 56.21 1644 61.47 1695 66.94 1745 72.46 1795 78.10 1845 83.81 1896 89.66
1526 49.91 1572 54.48 1619 59.34 1667 64.54 1714 69.88 1762 75.55 1810 81.41 1858 87.42 1905 93.41 1952 99.47 1999 105.54
1562 53.53 1606 58.19 1650 63.04 1694 68.07 1739 73.41 1784 79.00 1829 84.81 1874 90.81 1919 96.98 1964 103.29 2009 109.72
1600 57.43 1643 62.28 1685 67.21 1726 72.19 1768 77.47 1810 82.92 1852 88.57 1895 94.59 1938 100.82 1981 107.24 2023 113.65
1639 61.54 1681 66.59 1722 71.70 1762 76.85 1801 82.05 1841 87.54 1880 93.05 1920 98.87 1961 105.07 2002 111.48
1678 65.77 1720 71.12 1760 76.40 1799 81.73 1837 87.08 1875 92.60 1913 98.28 1950 103.96 1988 109.95 2026 116.10
1759 75.01 1799 80.70 1838 86.44 1876 92.22 1914 98.19 1950 104.01 1985 109.83 2020 115.79
1844 85.33 1882 91.41 1919 97.49 1956 103.73 1992 109.98 2027 116.23
MAXIMUM RPM:
Class I — 1080
Class II — 1409
Performance certified is for installation Type B & D: Free
or ducted inlet, ducted outlet.
Power rating (BHP) does not include transmission losses.
Performance ratings do not include the effects of appurtenances (accessories).
22
Tip Speed - 9.56 x RPM
Class III — 1775
Class IV — 2040
Legend:
Class I = Regular face to left of Class II
Class III = Italic face to right of Class II
Class II = Regular face in light shaded area Class IV= Italic face in darker shaded area
Max. Static Efficiency = Underlined
Twin City Bulletin 370
BAE SWSI 402
Outlet Area - 9.31 ft2
Wheel Dia. - 40.25 inches Tip Speed - 10.54 x RPM
Max. BHP = 22.91 (RPM÷1000)3
CFM
7448
8379
9310
11172
13034
14896
16758
18620
20482
22344
24206
26068
27930
31654
35378
39102
OV
800
900
1000
1200
1400
1600
1800
2000
2200
2400
2600
2800
3000
3400
3800
4200
0.50" SP
RPM BHP
316 0.72
333 0.84
351 0.98
390 1.30
432 1.70
475 2.19
520 2.78
567 3.51
615 4.37
663 5.37
712 6.53
761 7.86
810 9.36
910 13.02
1011 17.59
1112 23.14
CFM
22344
24206
26068
27930
29792
31654
33516
35378
37240
39102
42826
46550
OV
2400
2600
2800
3000
3200
3400
3600
3800
4000
4200
4600
5000
10" SP
11" SP
12" SP
13" SP
14" SP
15" SP
16" SP
17" SP
18" SP
19" SP
20" SP
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
1282 45.34
1291 47.77 1347 53.40 1403 59.06
1307 50.34 1359 56.10 1412 62.19 1463 68.15 1516 74.38
1327 53.12 1376 58.92 1426 65.15 1475 71.48 1523 77.83 1572 84.44 1620 90.88
1353 56.60 1399 62.34 1444 68.26 1491 74.77 1537 81.38 1583 88.19 1628 94.99 1673 101.88 1719 108.93
1383 60.59 1425 66.17 1468 72.14 1511 78.38 1554 84.92 1598 91.89 1641 98.92 1684 106.12 1727 113.46 1770 120.91 1813 128.35
1416 65.03 1456 70.71 1496 76.61 1536 82.74 1577 89.27 1617 95.92 1658 103.01 1699 110.34 1740 117.88 1781 125.59 1822 133.44
1451 69.85 1490 75.75 1528 81.73 1565 87.75 1603 94.15 1641 100.76 1680 107.80 1718 114.93 1757 122.50 1796 130.30 1835 138.30
1486 74.79 1524 80.91 1561 87.09 1597 93.31 1633 99.73 1669 106.36 1705 113.18 1741 120.20 1778 127.70 1815 135.45
1521 79.88 1559 86.36 1596 92.91 1631 99.32 1666 105.93 1700 112.54 1734 119.35 1768 126.34 1802 133.52 1837 141.12
1595 91.20 1631 98.07 1667 105.17 1701 112.11 1735 119.27 1768 126.42 1800 133.54 1831 140.63
1672 103.74 1706 111.04 1740 118.52 1773 125.99 1806 133.65 1838 141.31
MAXIMUM RPM:
1" SP
1.5" SP
2" SP
3" SP
4" SP
5" SP
6" SP
7" SP
8" SP
9" SP
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
407 1.48
415 1.62
426 1.77 500 2.77
459 2.21 519 3.19 580 4.37
494 2.72 550 3.81 601 4.95 706 7.77
532 3.33 584 4.53 632 5.78 722 8.53 814 11.87
573 4.07 621 5.38 667 6.76 748 9.58 829 12.88 911 16.68
615 4.90 660 6.34 703 7.84 781 10.91 852 14.12 926 17.93 999 22.09 1072 26.45
658 5.86 700 7.42 741 9.05 816 12.38 883 15.77 948 19.43 1015 23.63 1082 28.21 1148 32.95
703 6.99 742 8.66 780 10.39 851 13.93 917 17.63 978 21.43 1037 25.42 1099 30.03 1160 34.93 1221 40.07
749 8.27 785 10.05 821 11.91 889 15.72 952 19.62 1011 23.66 1066 27.74 1122 32.21 1178 37.04 1235 42.32
795 9.70 829 11.61 863 13.59 928 17.67 988 21.78 1046 26.10 1099 30.40 1150 34.82 1202 39.63 1254 44.75
843 11.36 874 13.35 906 15.45 968 19.77 1026 24.17 1081 28.65 1134 33.31 1183 37.92 1231 42.71 1279 47.78
939 15.24 967 17.49 995 19.80 1051 24.59 1104 29.45 1156 34.50 1205 39.55 1253 44.79 1298 50.00 1341 55.23
1037 20.05 1062 22.52 1087 25.05 1137 30.27 1187 35.71 1235 41.23 1281 46.80 1325 52.37 1369 58.18 1411 64.02
1136 25.88 1159 28.61 1181 31.31 1227 37.04 1272 42.87 1317 48.90 1360 54.96 1402 61.12 1443 67.34 1483 73.65
Class I — 979
Class II — 1278
Class III — 1610
Class IV — 1850
BAE SWSI 445
Outlet Area - 11.39 ft2
CFM
9112
10251
11390
13668
15946
18224
20502
22780
25058
27336
29614
31892
34170
38726
43282
47838
Wheel Dia. - 44.50 inches Tip Speed - 11.65 x RPM
0.50" SP
1" SP
1.5" SP
2" SP
3" SP
4" SP
5" SP
6" SP
7" SP
8" SP
9" SP
OV
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
800 286 0.89 368 1.81
900 302 1.04 375 1.97
1000 318 1.20 386 2.17 452 3.38
1200 353 1.59 415 2.70 469 3.89 525 5.35
1400 391 2.09 447 3.33 497 4.64 544 6.07 638 9.48
1600 430 2.68 482 4.10 529 5.56 572 7.08 653 10.43 736 14.50
1800 471 3.41 518 4.96 562 6.58 603 8.25 677 11.73 750 15.75 824 20.39
2000 513 4.29 556 5.99 597 7.75 636 9.58 706 13.31 771 17.29 838 21.95 904 27.05 970 32.39
2200 556 5.33 596 7.19 634 9.10 670 11.05 738 15.13 799 19.30 858 23.80 918 28.88 979 34.53 1038 40.25
2400 600 6.57 636 8.54 672 10.62 706 12.73 770 17.05 830 21.59 884 26.14 939 31.18 994 36.71 1050 42.80 1105 49.08
2600 644 7.99 678 10.13 711 12.33 743 14.57 804 19.21 862 24.06 915 28.97 965 33.99 1015 39.39 1066 45.34 1117 51.74
2800 689 9.64 720 11.89 751 14.25 781 16.63 839 21.56 894 26.65 946 31.90 995 37.26 1041 42.67 1087 48.41 1135 54.82
3000 734 11.51 763 13.91 791 16.34 820 18.92 876 24.20 928 29.54 978 35.04 1026 40.75 1070 46.35 1114 52.29 1157 58.42
3400 824 15.96 850 18.67 875 21.40 901 24.28 951 30.09 1000 36.15 1046 42.22 1091 48.48 1134 54.84 1174 61.11 1214 67.69
3800 915 21.54 938 24.51 961 27.56 984 30.69 1029 37.05 1074 43.68 1117 50.38 1159 57.25 1199 64.09 1238 71.07 1276 78.21
4200 1007 28.39 1028 31.67 1049 35.03 1069 38.35 1110 45.29 1151 52.45 1192 59.88 1231 67.31 1269 74.85 1306 82.46 1342 90.14
CFM OV
27336 2400
29614 2600
31892 2800
34170 3000
36448 3200
38726 3400
41004 3600
43282 3800
45560 4000
47838 4200
52394 4600
56950 5000
10" SP
11" SP
12" SP
13" SP
14" SP
15" SP
16" SP
17" SP
18" SP
19" SP
20" SP
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
1159 55.37
1168 58.46 1219 65.40 1269 72.22
1182 61.52 1230 68.72 1277 76.01 1324 83.47 1371 90.92
1201 65.05 1245 72.10 1290 79.68 1334 87.36 1378 95.26 1422 103.29 1466 111.30
1224 69.23 1265 76.14 1307 83.62 1348 91.28 1390 99.45 1432 107.87 1473 116.26 1514 124.77 1555 133.26
1252 74.25 1290 81.10 1328 88.22 1367 95.87 1406 103.90 1445 112.25 1485 121.11 1524 129.96 1562 138.71 1601 147.86 1640 157.01
1282 79.71 1318 86.64 1354 93.83 1390 101.30 1426 109.04 1463 117.36 1500 126.01 1537 134.96 1574 144.16 1611 153.57 1648 163.15
1313 85.48 1348 92.66 1382 99.89 1416 107.37 1450 115.11 1485 123.35 1520 131.90 1555 140.79 1590 149.99 1625 159.45 1660 169.16
1345 91.60 1379 99.02 1413 106.70 1445 114.18 1478 122.14 1510 130.11 1542 138.31 1575 147.02 1609 156.34 1642 165.69
1377 97.90 1411 105.75 1444 113.66 1476 121.58 1507 129.50 1538 137.66 1569 146.06 1600 154.69 1631 163.55 1662 172.65
1443 111.54 1476 120.05 1508 128.59 1539 137.15 1570 145.97 1599 154.47 1628 163.20 1657 172.16
1513 126.95 1544 135.96 1574 144.90 1604 154.08 1634 163.50 1663 172.88
MAXIMUM RPM:
Class I — 886
Class II — 1156
Performance certified is for installation Type B & D: Free
or ducted inlet, ducted outlet.
Power rating (BHP) does not include transmission losses.
Performance ratings do not include the effects of appurtenances (accessories).
23
Max. BHP = 37.85 (RPM÷1000)3
Class III — 1456
Class IV — 1673
Legend:
Class I = Regular face to left of Class II
Class III = Italic face to right of Class II
Class II = Regular face in light shaded area Class IV= Italic face in darker shaded area
Max. Static Efficiency = Underlined
Twin City Bulletin 370
BAE SWSI 490
Outlet Area - 13.80 ft2
Wheel Dia. - 49.00 inches Tip Speed - 12.83 x RPM
Max. BHP = 61.26 (RPM÷1000)3
CFM OV
11040 800
12420 900
13800 1000
16560 1200
19320 1400
22080 1600
24840 1800
27600 2000
30360 2200
33120 2400
35880 2600
38640 2800
41400 3000
46920 3400
52440 3800
57960 4200
0.50" SP
RPM BHP
259 1.06
274 1.25
289 1.46
320 1.92
355 2.53
390 3.24
428 4.15
466 5.21
505 6.47
545 7.97
585 9.69
625 11.65
666 13.92
748 19.33
831 26.12
914 34.36
CFM OV
33120 2400
35880 2600
38640 2800
41400 3000
44160 3200
46920 3400
49680 3600
52440 3800
55200 4000
57960 4200
63480 4600
69000 5000
10" SP
11" SP
12" SP
13" SP
14" SP
15" SP
16" SP
17" SP
18" SP
19" SP
20" SP
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
1053 67.19
1061 70.91 1107 79.26 1153 87.66
1073 74.49 1117 83.30 1160 92.20 1202 101.07 1245 110.17
1090 78.72 1131 87.49 1171 96.47 1211 105.78 1251 115.34 1291 125.08 1331 134.79
1111 83.80 1149 92.35 1187 101.39 1224 110.61 1262 120.46 1300 130.62 1337 140.70 1375 151.25 1412 161.44
1136 89.79 1171 98.19 1206 106.95 1241 116.11 1277 126.00 1313 136.30 1348 146.62 1384 157.52 1419 168.31 1454 179.23 1489 190.14
1164 96.58 1196 104.79 1229 113.58 1262 122.71 1295 132.18 1329 142.39 1362 152.69 1396 163.67 1430 174.97 1463 186.15 1496 197.51
1192 103.54 1224 112.29 1255 121.08 1286 130.19 1317 139.62 1348 149.34 1380 159.77 1412 170.62 1443 181.47 1475 193.01 1507 204.84
1221 110.94 1252 119.96 1283 129.30 1312 138.34 1342 148.01 1371 157.64 1400 167.55 1430 178.11 1461 189.45 1491 200.79
1250 118.56 1281 128.10 1311 137.69 1340 147.27 1368 156.81 1397 167.00 1424 176.75 1452 187.13 1481 198.20 1509 209.16
1310 135.10 1340 145.43 1369 155.75 1398 166.42 1425 176.69 1452 187.24 1478 197.69 1504 208.40
1373 153.59 1401 164.44 1429 175.54 1457 186.95 1483 197.87 1510 209.51
MAXIMUM RPM:
1" SP
1.5" SP
2" SP
3" SP
4" SP
5" SP
6" SP
7" SP
8" SP
9" SP
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
334 2.19
341 2.40
350 2.62 410 4.08
377 3.28 426 4.71 477 6.49
406 4.04 451 5.62 494 7.36 580 11.53
437 4.94 480 6.72 519 8.56 593 12.64 669 17.63
470 6.00 510 7.96 548 10.03 614 14.16 681 19.09 748 24.69
505 7.26 542 9.39 577 11.59 641 16.12 700 20.94 761 26.61 821 32.79 881 39.26
541 8.71 575 10.99 608 13.37 670 18.32 725 23.34 779 28.83 834 35.05 889 41.84 943 48.83
577 10.33 610 12.86 641 15.42 699 20.64 753 26.10 803 31.71 852 37.70 903 44.54 953 51.79 1003 59.40
615 12.24 645 14.90 675 17.69 730 23.28 782 29.08 830 35.00 876 41.16 921 47.64 968 54.96 1014 62.64
653 14.37 681 17.20 709 20.14 762 26.15 812 32.33 859 38.66 903 45.09 945 51.67 987 58.67 1030 66.32
692 16.80 718 19.79 744 22.88 795 29.29 843 35.85 888 42.47 931 49.28 972 56.24 1011 63.27 1050 70.68
771 22.56 794 25.88 818 29.41 863 36.41 907 43.67 949 51.04 990 58.64 1029 66.32 1066 74.05 1102 81.96
852 29.74 872 33.34 893 37.14 934 44.86 975 52.91 1014 61.02 1052 69.31 1089 77.74 1124 86.11 1159 94.88
933 38.33 952 42.39 971 46.53 1008 54.91 1045 63.55 1082 72.51 1117 81.42 1152 90.66 1185 99.72 1218 109.10
Class I — 804
Class II — 1050
Class III — 1322
Class IV — 1520
BAE SWSI 542
Outlet Area - 16.92 ft2
Wheel Dia. - 54.25 inches Tip Speed - 14.20 x RPM Max. BHP = 101.90 (RPM÷1000)3
CFM OV
13536 800
15228 900
16920 1000
20304 1200
23688 1400
27072 1600
30456 1800
33840 2000
37224 2200
40608 2400
43992 2600
47376 2800
50760 3000
57528 3400
64296 3800
71064 4200
0.50" SP
1" SP
1.5" SP
2" SP
3" SP
4" SP
5" SP
6" SP
7" SP
8" SP
9" SP
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
234 1.31 302 2.70
247 1.53 308 2.94
261 1.78 316 3.21 371 5.03
289
2.35 340 4.00 385 5.79 430 7.91
320 3.08 367 4.96 408 6.92 446 9.00 524 14.14
353 4.00 395 6.07 434 8.27 469 10.51 536 15.53 604 21.58
386 5.06 425 7.38 461 9.78 495 12.29 555 17.40 615 23.38 676 30.32
421 6.39 456 8.89 490 11.55 521 14.19 579 19.77 633 25.76 687 32.57 742 40.27 795 48.00
456 7.93 488 10.64 520 13.53 550 16.47 605 22.44 655 28.64 704 35.40 753 42.91 803 51.30 852 59.92
492 9.75 522 12.72 551 15.77 579 18.90 632 25.38 681 32.12 725 38.82 770 46.30 815 54.48 861 63.53 906 72.83
528 11.85 556 15.04 583 18.31 609 21.61 660 28.62 707 35.75 750 42.96 791 50.41 832 58.42 874 67.29 916 76.82
565 14.31 590 17.63 615 21.07 641 24.76 688 32.02 733 39.55 776 47.41 816 55.35 854 63.43 892 72.04 931 81.47
602 17.10 625 20.59 649 24.31 672 28.04 718 35.89 761 43.87 802 52.04 841 60.43 878 68.96 913 77.51 949 86.81
676 23.74 697 27.72 718 31.84 739 36.07 780 44.71 820 53.68 858 62.75 894 71.83 930 81.45 963 90.82 995 100.36
750 31.94 769 36.37 788 40.92 807 45.59 844 55.06 881 64.93 916 74.83 950 84.90 984 95.40 1016 105.79 1047 116.35
826 42.19 843 47.03 860 51.98 877 57.03 911 67.42 944 77.93 977 88.80 1009 99.82 1040 110.96 1071 122.46 1100 133.68
CFM OV
40608 2400
43992 2600
47376 2800
50760 3000
54144 3200
57528 3400
60912 3600
64296 3800
67680 4000
71064 4200
77832 4600
84600 5000
10" SP
11" SP
12" SP
13" SP
14" SP
15" SP
16" SP
17" SP
18" SP
19" SP
20" SP
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
951 82.34
958 86.84 1000 97.20 1041 107.33
970 91.55 1009 102.14 1047 112.79 1086 124.01 1125 135.23
985 96.64 1021 107.07 1058 118.36 1094 129.74 1130 141.42 1166 153.31 1202 165.16
1004 102.88 1038 113.26 1072 124.24 1106 135.75 1140 147.71 1174 160.04 1208 172.64 1242 185.44 1275 197.75
1027 110.36 1058 120.47 1089 130.99 1121 142.36 1153 154.29 1186 167.11 1218 179.93 1250 193.07 1282 206.48 1313 219.57 1345 233.15
1051 118.27 1081 128.71 1110 139.20 1140 150.47 1170 162.16 1200 174.38 1231 187.54 1261 200.68 1291 214.18 1321 227.97 1352 242.54
1077 127.04 1105 137.43 1134 148.60 1161 159.36 1189 170.90 1218 183.27 1246 195.63 1275 208.97 1304 222.77 1333 236.99 1361 251.01
1103 136.05 1131 147.10 1159 158.55 1185 169.56 1212 181.36 1238 193.08 1265 205.61 1292 218.52 1319 231.90 1347 246.29
1129 145.31 1157 157.01 1184 168.72 1211 180.82 1236 192.40 1262 204.79 1287 217.06 1312 229.66 1338 243.12 1363 256.41
1184 165.93 1210 178.11 1237 191.13 1262 203.64 1287 216.53 1312 229.78 1335 242.33 1359 255.76
1241 188.66 1266 201.83 1291 215.31 1316 229.15 1340 242.82 1364 256.87
MAXIMUM RPM:
Class I — 727
Class II — 948
Performance certified is for installation Type B & D: Free
or ducted inlet, ducted outlet.
Power rating (BHP) does not include transmission losses.
Performance ratings do not include the effects of appurtenances (accessories).
24
Class III — 1194
Class IV — 1373
Legend:
Class I = Regular face to left of Class II
Class III = Italic face to right of Class II
Class II = Regular face in light shaded area Class IV= Italic face in darker shaded area
Max. Static Efficiency = Underlined
Twin City Bulletin 370
BAE SWSI 600
Outlet Area - 20.70 ft2
Wheel Dia. - 60.00 inches Tip Speed - 15.71 x RPM Max. BHP = 168.60 (RPM÷1000)3
CFM OV
16560 800
18630 900
20700 1000
24840 1200
28980 1400
33120 1600
37260 1800
41400 2000
45540 2200
49680 2400
53820 2600
57960 2800
62100 3000
70380 3400
78660 3800
86940 4200
0.50" SP
RPM BHP
212 1.61
224 1.88
236 2.18
262 2.90
290 3.79
319 4.88
349 6.19
381 7.83
413 9.74
445 11.94
478 14.55
511 17.52
544 20.88
611 29.00
679 39.22
747 51.64
CFM OV
496802400
538202600
579602800
621003000
662403200
703803400
745203600
786603800
828004000
869404200
952204600
1035005000
10" SP
11" SP
12" SP
13" SP
14" SP
15" SP
16" SP
17" SP
18" SP
19" SP
20" SP
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
860 100.78
866 106.16 904 118.84 941 131.20
877 111.97 912 124.82 947 138.12 982 151.73 1017 165.34
891 118.37 924 131.33 956 144.50 989 158.63 1022 173.15 1054 187.40 1087 202.15
908 125.93 938 138.32 969 151.84 1000 166.05 1031 180.82 1062 196.05 1092 211.06 1123 226.87 1153 242.03
928 134.74 956 147.08 985 160.41 1014 174.36 1043 189.00 1072 204.22 1101 219.93 1130 236.05 1159 252.49 1187 268.49 1216 285.15
950 144.54 977 157.25 1004 170.47 1031 184.19 1058 198.43 1085 213.31 1113 229.38 1140 245.38 1168 262.48 1195 279.29 1222 296.38
974 155.50 1000 168.56 1025 181.60 1050 195.08 1075 209.02 1101 224.01 1127 239.56 1153 255.74 1179 272.48 1205 289.72 1231 307.37
997 166.26 1023 180.14 1048 193.98 1072 207.74 1096 221.94 1120 236.58 1144 251.66 1168 267.18 1193 283.96 1218 301.33
1021 177.85 1046 191.99 1071 206.65 1095 221.22 1118 235.63 1141 250.47 1163 265.06 1186 280.73 1209 296.83 1233 314.12
1070 202.65 1095 218.44 1118 233.51 1142 249.71 1164 265.09 1186 280.88 1207 296.38 1229 313.02
1122 230.72 1145 247.09 1167 263.18 1190 280.37 1212 297.33 1233 313.99
MAXIMUM RPM:
1" SP
1.5" SP
2" SP
3" SP
4" SP
5" SP
6" SP
7" SP
8" SP
9" SP
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
273 3.30
278 3.57
286 3.93 335 6.13
308 4.92 348 7.07 389 9.70
332 6.08 369 8.47 403 10.99 474 17.32
357 7.42 392 10.08 424 12.85 485 19.04 546 26.38
384 9.01 417 11.98 447 14.98 502 21.31 556 28.60 611 37.05
412 10.85 443 14.12 471 17.35 524 24.25 572 31.46 621 39.81 670 49.07 719 58.76
442 13.08 470 16.53 497 20.11 547 27.45 592 34.99 636 43.19 681 52.53 726 62.74 770 73.20
472 15.56 498 19.26 524 23.19 571 30.98 615 39.15 656 47.59 696 56.58 737 66.67 778 77.57 819 89.04
502 18.32 527 22.37 551 26.49 596 34.87 639 43.68 678 52.52 715 61.61 752 71.39 790 82.24 828 93.90
534 21.63 557 25.91 579 30.20 622 39.15 663 48.44 702 58.08 737 67.48 772 77.55 806 87.95 841 99.38
566 25.30 587 29.77 608 34.36 649 43.86 688 53.64 726 63.88 761 74.09 794 84.39 826 94.99 858 106.17
630 33.88 649 38.91 668 44.09 705 54.63 741 65.55 776 76.82 809 88.08 841 99.67 871 111.20 900 122.91
696 44.62 713 50.17 730 55.85 763 67.32 796 79.25 828 91.46 859 103.87 889 116.42 918 129.13 947 142.47
762 57.48 778 63.68 793 69.77 823 82.26 854 95.48 884 108.84 913 122.38 941 136.01 968 149.63 995 163.72
Class I — 657
Class II — 857
Class III — 1080
Class IV — 1241
BAE SWSI 660
Outlet Area - 25.05 ft2
CFM OV
20040 800
22545 900
250501000
300601200
350701400
400801600
450901800
501002000
551102200
601202400
651302600
701402800
751503000
851703400
951903800
1052104200
0.50" SP
RPM BHP
193 1.95
203 2.26
214 2.62
238 3.50
263 4.56
290 5.90
318 7.54
346 9.45
375 11.75
404 14.39
434 17.54
464 21.13
495 25.33
556 35.20
617 47.39
679 62.45
Wheel Dia. - 66.00 inches Tip Speed - 17.28 x RPM Max. BHP = 271.60 (RPM÷1000)3
1" SP
1.5" SP
2" SP
3" SP
4" SP
5" SP
6" SP
7" SP
8" SP
9" SP
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
248 3.98
253 4.34
260 4.76 305 7.45
280 5.95 316 8.53 354 11.77
301 7.30 335 10.21 366 13.26 430 20.83
325 9.01 357 12.26 385 15.50 441 23.05 496 31.85
349 10.89 379 14.48 407 18.21 456 25.72 506 34.71 555 44.72
375 13.18 403 17.12 429 21.11 476 29.27 520 38.06 565 48.29 610 59.64 654 71.23
401 15.73 427 19.96 452 24.36 498 33.36 539 42.53 578 52.21 619 63.53 660 75.91 700 88.58
429 18.82 453 23.35 476 27.99 519 37.46 559 47.35 596 57.48 633 68.55 670 80.67 708 94.15 745 107.94
457 22.26 479 27.06 501 32.07 542 42.23 581 52.88 617 63.74 650 74.55 684 86.52 719 99.85 753 113.74
485 26.09 506 31.28 527 36.67 566 47.51 603 58.69 638 70.22 670 81.65 702 93.90 733 106.54 765 120.46
514 30.52 534 36.09 553 41.64 590 53.07 626 65.08 660 77.29 692 89.72 722 102.19 751 114.98 780 128.47
573 41.05 590 47.08 607 53.27 641 66.13 674 79.44 705 92.77 735 106.38 764 120.34 792 134.64 818 148.62
633 54.06 648 60.65 663 67.38 694 81.59 724 96.04 753 110.78 781 125.72 809 141.29 835 156.50 861 172.44
693 69.63 707 76.96 721 84.45 749 99.86 776 115.36 803 131.39 830 148.08 855 164.31 880 181.05 904 197.74
10" SP
11" SP
12" SP
13" SP
14" SP
15" SP
16" SP
17" SP
18" SP
19" SP
20" SP
CFM OV
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
60120 2400 782 122.03
65130 2600 788 128.82 822 143.90 856 159.07
70140 2800 797 135.34 829 150.98 861 167.19 892 183.16 924 199.73
75150 3000 810 143.22 840 158.92 870 175.40 899 191.88 929 209.45 958 226.64 988 244.49
80160 3200 825 152.13 853 167.52 881 183.79 909 200.86 937 218.61 965 236.89 993 255.60 1021 274.60 1048 292.73
85170 3400 844 163.24 869 177.91 895 193.80 922 211.11 948 228.56 975 247.46 1001 266.20 1027 285.40 1053 304.97 1079 324.80 1105 344.63
90180 3600 864 175.11 888 190.15 913 206.45 937 222.68 962 240.24 987 258.60 1011 276.89 1036 296.60 1061 316.87 1086 337.61 1111 358.72
95190 3800 885 187.86 909 203.90 932 219.86 955 236.39 978 253.48 1001 271.13 1024 289.41 1048 309.29 1072 329.88 1095 350.13 1119 371.84
100200 4000 907 201.60 930 217.96 952 234.18 974 250.94 996 268.25 1018 286.11 1040 304.52 1062 323.46 1084 343.08 1107 364.35
105210 4200 928 215.07 951 232.37 974 250.32 995 267.30 1016 284.80 1037 302.83 1058 321.38 1079 340.46 1099 359.07 1121 380.19
115230 4600 973 245.41 995 263.95 1017 283.07 1038 301.98 1058 320.59 1078 339.70 1098 359.33 1117 378.48
125250 5000 1020 279.17 1041 299.05 1061 318.53 1082 339.42 1102 359.94 1121 380.02
MAXIMUM RPM:
Class I — 597
Class II — 779
Performance certified is for installation Type B & D: Free
or ducted inlet, ducted outlet.
Power rating (BHP) does not include transmission losses.
Performance ratings do not include the effects of appurtenances (accessories).
25
Class III — 982
Class IV — 1128
Legend:
Class I = Regular face to left of Class II
Class III = Italic face to right of Class II
Class II = Regular face in light shaded area Class IV= Italic face in darker shaded area
Max. Static Efficiency = Underlined
Twin City Bulletin 370
BAE SWSI 730
Outlet Area - 30.64 ft2
Wheel Dia. - 73.00 inches Tip Speed - 19.11 x RPM Max. BHP = 449.60 (RPM÷1000)3
CFM OV
24512 800
27576 900
306401000
367681200
428961400
490241600
551521800
612802000
674082200
735362400
796642600
857922800
919203000
1041763400
1164323800
1286884200
0.50" SP
RPM BHP
174 2.37
184 2.79
194 3.23
215 4.27
238 5.59
262 7.21
287 9.18
313 11.58
339 14.37
366 17.72
393 21.56
420 25.94
447 30.88
502 42.88
558 58.03
614 76.45
CFM OV
735362400
796642600
857922800
919203000
980483200
1041763400
1103043600
1164323800
1225604000
1286884200
1409444600
1532005000
10" SP
11" SP
12" SP
13" SP
14" SP
15" SP
16" SP
17" SP
18" SP
19" SP
20" SP
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
707 149.27
712 157.29 743 175.90 774 194.64
721 165.86 750 185.06 778 204.17 807 224.50 836 244.84
732 174.98 759 194.06 786 214.11 813 234.91 840 256.30 867 278.07 893 298.81
746 186.19 771 204.78 797 225.25 822 245.87 847 267.29 873 290.33 898 312.90 923 335.80 948 358.64
763 199.65 786 217.92 809 236.93 833 257.71 857 279.51 881 302.20 905 325.63 929 349.68 952 373.03 976 397.89 999 421.51
781 214.11 803 232.76 825 252.15 847 272.27 869 293.14 892 315.98 914 338.67 937 363.24 960 388.54 982 413.17 1004 438.22
800 229.71 822 249.59 842 268.37 863 288.76 884 309.87 905 331.67 926 354.27 948 378.96 969 403.30 990 428.32 1012 455.29
820 246.61 841 266.82 861 286.78 881 307.41 901 328.73 920 349.58 940 372.21 960 395.50 980 419.63 1001 445.93
839 263.10 860 284.47 880 305.61 900 327.46 919 348.90 938 370.99 956 392.49 975 415.82 994 439.78 1013 464.40
880 300.55 900 323.35 919 345.77 938 368.89 957 392.76 975 416.05 992 438.65 1010 463.18
922 341.32 941 365.65 960 390.59 978 414.93 996 439.91 1014 465.59
MAXIMUM RPM:
1" SP
1.5" SP
2" SP
3" SP
4" SP
5" SP
6" SP
7" SP
8" SP
9" SP
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
224 4.86
229 5.33
235 5.82 276 9.14
253 7.27 286 10.47 320 14.39
273 9.02 303 12.50 331 16.24 389 25.52
294 11.04 322 14.89 348 18.94 398 28.05 449 39.11
316 13.38 343 17.77 368 22.28 413 31.63 457 42.33 502 54.78
339 16.12 364 20.88 387 25.65 431 35.97 470 46.53 511 59.13 551 72.75 591 87.00
363 19.31 386 24.41 408 29.66 450 40.75 487 51.93 523 64.03 560 77.87 597 93.00 633 108.42
388 23.04 409 28.45 430 34.16 470 46.06 506 58.13 539 70.38 572 83.73 606 98.81 640 115.12 673 131.71
413 27.20 433 33.09 453 39.24 490 51.66 525 64.58 557 77.63 588 91.35 618 105.63 650 122.12 681 139.27
439 32.03 457 38.15 476 44.73 512 58.22 545 71.73 577 85.98 606 100.01 634 114.51 663 130.50 692 147.59
465 37.41 482 43.93 500 50.95 534 65.14 566 79.63 596 94.22 625 109.43 652 124.58 679 140.67 705 157.02
518 50.21 533 57.46 549 65.25 580 81.10 609 97.01 637 113.28 665 130.43 691 147.39 716 164.68 740 182.14
572 66.04 586 74.25 600 82.67 627 99.60 655 117.72 681 135.65 706 153.73 731 172.55 755 191.52 778 210.60
626 84.97 639 94.07 652 103.38 677 122.07 702 141.38 726 160.74 750 180.86 773 201.01 796 221.81 818 242.53
Class I — 540
Class II — 705
Class III — 888
Class IV — 1020
BAE SWSI 807
Outlet Area - 37.49 ft2
Wheel Dia. - 80.75 inches Tip Speed - 21.14 x RPM Max. BHP = 744.60 (RPM÷1000)3
CFM OV
29992 800
33741 900
37490 1000
44988 1200
52486 1400
59984 1600
67482 1800
74980 2000
82478 2200
89976 2400
97474 2600
1049722800
1124703000
1274663400
1424623800
1574584200
0.50" SP
RPM BHP
157 2.88
166 3.39
175 3.93
194 5.20
215 6.83
237 8.84
260 11.30
283 14.18
306 17.50
331 21.70
355 26.32
379 31.56
404 37.76
454 52.53
504 70.82
555 93.50
CFM OV
89976 2400
97474 2600
104972 2800
112470 3000
119968 3200
127466 3400
134964 3600
142462 3800
149960 4000
157458 4200
172454 4600
187450 5000
10" SP
11" SP
12" SP
13" SP
14" SP
15" SP
16" SP
17" SP
18" SP
19" SP
20" SP
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
639 182.52
644 192.76 672 215.53 700 238.45
651 202.20 678 226.42 704 250.54 729 274.08 756 299.86
662 214.35 686 237.29 711 262.46 735 287.47 759 313.13 783 339.22 808 366.57
675 228.42 697 250.56 720 275.03 743 300.72 766 327.42 789 354.95 812 383.13 834 410.27 857 438.80
690 244.54 711 267.14 732 290.67 753 315.27 775 342.34 797 370.54 818 398.23 840 428.10 861 457.03 882 486.31 904 517.26
706 261.93 726 284.88 746 308.76 766 333.53 786 359.23 806 386.07 827 415.48 847 444.35 868 475.63 888 505.98 908 536.83
723 280.82 743 305.27 762 329.42 780 353.09 799 378.93 818 405.62 837 433.29 857 463.67 876 493.47 895 524.12 915 557.32
741 301.39 760 326.12 778 350.41 796 375.52 814 401.45 832 428.21 850 455.78 868 484.16 886 513.55 905 545.76
759 322.59 777 347.46 796 374.59 813 399.76 831 427.23 848 453.99 864 479.84 881 508.07 899 538.83 916 568.66
795 367.00 813 394.75 831 423.39 848 451.42 865 480.33 881 508.35 897 537.11 913 566.62
833 416.88 851 447.90 867 476.50 884 507.47 900 537.54 916 568.43
MAXIMUM RPM:
1" SP
1.5" SP
2" SP
3" SP
4" SP
5" SP
6" SP
7" SP
8" SP
9" SP
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
203 5.99
207 6.52
212 7.07 249 11.12
229 8.92 259 12.87 289 17.56
246 10.92 274 15.31 300 20.02 352 31.32
265 13.39 291 18.21 315 23.27 360 34.38 406 47.89
286 16.43 310 21.73 332 27.09 373 38.59 413 51.75 454 67.10
306 19.63 329 25.53 350 31.43 389 43.80 425 56.97 462 72.38 498 88.96 534 106.29
328 23.60 349 29.88 369 36.34 407 49.93 440 63.42 473 78.44 506 95.14 539 113.35 572 132.49
350 28.01 370 34.88 389 41.89 424 56.00 457 70.92 487 85.98 517 102.39 548 121.01 578 140.44 609 161.63
373 33.18 391 40.35 409 47.83 443 63.22 475 79.22 504 95.25 532 112.05 559 129.46 587 148.96 616 170.71
397 39.24 414 46.97 430 54.62 463 71.30 493 87.93 521 104.83 548 122.48 574 140.73 599 159.39 625 180.09
420 45.65 436 53.86 452 62.34 483 79.83 511 97.05 539 115.42 565 133.88 590 152.88 614 172.26 637 191.83
468 61.32 482 70.37 496 79.69 524 99.04 551 118.99 576 138.71 601 159.45 625 180.63 647 201.24 669 222.89
517 80.76 530 90.98 542 100.92 567 121.98 592 143.95 616 166.27 638 187.90 661 211.29 682 233.78 703 257.33
566 104.01 578 115.30 589 126.22 612 149.35 634 172.49 657 197.29 678 221.29 699 246.15 719 270.73 739 296.16
Class I — 488
Class II — 637
Performance certified is for installation Type B & D: Free
or ducted inlet, ducted outlet.
Power rating (BHP) does not include transmission losses.
Performance ratings do not include the effects of appurtenances (accessories).
26
Class III — 802
Class IV — 922
Legend:
Class I = Regular face to left of Class II
Class III = Italic face to right of Class II
Class II = Regular face in light shaded area Class IV= Italic face in darker shaded area
Max. Static Efficiency = Underlined
Twin City Bulletin 370
BAE SWSI 890
Outlet Area - 45.54 ft2
Wheel Dia. - 89.00 inches Tip Speed - 23.30 x RPM Max. BHP = 1211.0 (RPM÷1000)3
CFM OV
36432 800
40986 900
455401000
546481200
637561400
728641600
819721800
910802000
1001882200
1092962400
1184042600
1275122800
1366203000
1548363400
1730523800
1912684200
0.50" SP
RPM BHP
143
3.54
151
4.15
159
4.79
176
6.31
195
8.28
215 10.73
235 13.57
257 17.27
278 21.34
300 26.28
322 31.94
344 38.39
367 46.04
412 63.86
457 85.87
503 113.21
CFM OV
109296 2400
118404 2600
127512 2800
136620 3000
145728 3200
154836 3400
163944 3600
173052 3800
182160 4000
191268 4200
209484 4600
227700 5000
10" SP
11" SP
12" SP
13" SP
14" SP
15" SP
16" SP
17" SP
18" SP
19" SP
20" SP
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
580 221.98
584 233.79 609 260.91 635 289.51
591 246.06 615 274.85 638 303.28 662 333.80 685 362.79
600 259.56 623 289.07 645 318.69 667 349.42 689 380.97 711 413.08 733 445.11
612 276.90 633 305.25 653 333.70 674 365.09 695 397.75 716 431.43 736 464.02 757 498.99 777 531.88
626 297.01 645 324.38 664 352.87 683 382.64 703 415.58 723 449.89 742 483.41 762 519.77 781 554.77 800 590.22 820 627.88
641 318.85 659 346.54 677 375.32 695 405.17 713 436.13 732 470.36 750 504.02 769 540.86 787 576.60 806 615.36 824 652.52
656 341.16 674 370.63 691 399.54 708 429.48 725 460.44 742 492.39 760 527.57 777 562.04 795 599.91 812 636.60 830 676.57
672 365.61 689 395.21 706 425.88 723 457.66 739 488.57 755 520.43 771 553.22 788 589.17 804 624.15 821 662.71
688 390.78 705 422.13 722 454.64 738 486.34 754 519.05 769 550.64 784 583.10 800 618.73 815 652.96 831 690.56
721 445.26 738 480.24 754 514.39 770 549.67 785 583.90 800 619.07 814 652.82 828 687.40
756 506.85 772 543.86 787 579.65 802 616.34 817 654.02 831 690.29
MAXIMUM RPM:
1" SP
1.5" SP
2" SP
3" SP
4" SP
5" SP
6" SP
7" SP
8" SP
9" SP
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
184 7.25
188 7.94
193 8.68 226 13.52
207 10.72 235 15.64 262 21.27
224 13.41 249 18.69 272 24.27 319 37.91
241 16.39 264 22.11 286 28.32 327 41.90 368 58.00
259 19.85 281 26.32 301 32.84 338 46.71 375 63.00 412 81.57
278 23.94 299 31.17 318 38.34 353 53.24 386 69.42 419 87.81 452 108.18 485 129.51
298 28.78 317 36.41 335 44.22 369 60.51 399 76.92 429 95.18 459 115.50 489 137.66 519 160.96
318 34.17 336 42.49 353 50.91 385 68.19 415 86.38 442 104.54 469 124.33 497 146.81 525 171.17 552 195.76
339 40.52 355 49.11 371 58.07 402 76.84 431 96.25 457 115.49 482 135.54 507 157.10 533 181.37 558 206.37
360 47.58 375 56.77 390 66.28 420 86.56 447 106.60 473 127.59 497 148.61 520 170.18 544 194.18 567 218.69
381 55.43 396 65.63 410 75.67 438 96.83 464 118.17 489 140.18 513 162.99 535 185.40 557 209.16 578 233.09
425 74.69 438 85.89 450 96.79 475 119.99 500 144.61 523 168.88 545 193.39 567 219.35 587 244.43 607 270.78
469 98.05 480 109.92 492 122.78 515 148.67 537 174.74 558 201.01 579 228.42 600 257.02 619 284.30 638 312.85
514 126.69 524 139.73 535 153.85 555 181.16 576 210.38 596 239.55 615 268.62 634 298.73 653 329.86 671 360.58
Class I — 443
Class II — 578
Class III — 728
Class IV — 837
BAE SWSI 982
Outlet Area - 55.50 ft2
CFM OV
44400 800
49950 900
55500 1000
66600 1200
77700 1400
88800 1600
99900 1800
111000 2000
122100 2200
133200 2400
144300 2600
155400 2800
166500 3000
188700 3400
210900 3800
233100 4200
0.50" SP
RPM BHP
129 4.26
137 5.08
144 5.84
160 7.77
177 10.16
195 13.12
213 16.57
232 20.83
252 26.06
272 32.11
292 39.06
312 46.95
332 55.88
373 77.69
414 104.66
456 138.29
MAXIMUM RPM:
Wheel Dia. - 98.25 inches Tip Speed - 27.72 x RPM Max. BHP = 1985.0 (RPM÷1000)3
1" SP
1.5" SP
2" SP
3" SP
4" SP
5" SP
6" SP
7" SP
8" SP
9" SP
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
167 8.89
170 9.62
175 10.61 205 16.55
188 13.17 213 19.09 238 26.15
203 16.37 225 22.61 246 29.44 289 46.22
218 19.88 240 27.24 259 34.49 296 50.96 334 71.10
235 24.31 255 32.25 273 40.17 306 56.82 340 76.99 373 99.23
252 29.24 270 37.63 288 46.69 320 65.02 349 84.12 379 106.55 409 131.41 439 157.47
270 35.10 287 44.31 303 53.65 334 73.57 362 94.18 389 116.35 416 140.97 443 167.81 470 195.99
288 41.62 304 51.59 320 62.17 349 83.28 376 105.33 401 127.99 425 151.68 450 178.67 475 207.85 500 238.52
307 49.34 322 60.09 336 70.72 364 93.52 390 116.92 414 140.77 437 165.61 460 192.37 483 221.28 506 252.30
326 57.93 340 69.37 354 81.26 380 105.11 405 129.99 429 156.06 450 180.85 471 207.33 492 235.52 514 267.11
345 67.47 358 79.50 371 91.92 397 118.21 420 143.69 443 170.88 465 199.02 485 226.45 504 254.05
385 91.03 396 104.07 408 118.27 431 146.96 453 176.32 474 206.12 494 236.13 513 266.35
425 119.63 435 134.13 446 149.95 466 180.58 486 212.37 506 245.75
465 153.79 475 170.64 484 186.76 503 221.11 521 255.24
Class I — 401
Class II — 523
Performance certified is for installation Type B & D: Free
or ducted inlet, ducted outlet.
Power rating (BHP) does not include transmission losses.
Performance ratings do not include the effects of appurtenances (accessories).
27
Class III — 654
Class IV — 756
Legend:
Class I = Regular face to left of Class II
Class III = Italic face to right of Class II
Class II = Regular face in light shaded area Class IV= Italic face in darker shaded area
Max. Static Efficiency = Underlined
Twin City Bulletin 370
BAE DWDI 122
Outlet Area - 1.55 ft2
CFM OV
1240
1550
1860
2170
2480
2790
3100
3410
3720
4030
4340
4650
4960
5270
5890
6510
0.5" SP
Wheel Dia. - 12.25 inches
1" SP
2" SP
3" SP
Tip Speed - 3.21 x RPM
4" SP
5" SP
6" SP
Max. BHP = 0.089 (RPM÷1000)3
8" SP
10" SP
12" SP
14" SP
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
800
1000
1200
1400
1600
1800
2000
2200
2400
2600
2800
3000
3200
3400
3800
4200
1202
1349
1508
1679
1857
2040
2227
2417
2610
2804
2999
3196
3394
3592
3991
4393
MAXIMUM RPM:
0.15
0.21
0.29
0.38
0.51
0.65
0.83
1.04
1.29
1.58
1.91
2.29
2.72
3.20
4.33
5.73
1470
1605
1750
1897
2052
2219
2392
2570
2751
2936
3123
3313
3504
3696
4085
4478
0.28
0.37 2002 0.71
0.47 2125 0.85 2442 1.29
0.59 2260 1.02 2556 1.49 2826 2.00
0.73 2404 1.22 2690 1.73 2940 2.26 3175 2.84
0.90 2550 1.44 2829 2.00 3074 2.58 3294 3.18 3503 3.82
1.11 2698 1.69 2974 2.30 3211 2.93 3429 3.58 3628 4.25 4005 5.69
1.35 2852 1.97 3120 2.64 3354 3.32 3564 4.01 3762 4.73 4117 6.22 4462 7.86
1.62 3015 2.30 3267 3.01 3500 3.74 3707 4.49 3898 5.25 4250 6.83 4566 8.48 4884 10.30
1.94 3184 2.66 3419 3.42 3646 4.20 3852 5.00 4040 5.81 4383 7.48 4695 9.22 4985 11.03
2.29 3357 3.07 3578 3.87 3794 4.71 3998 5.56 4185 6.42 4521 8.18 4830 10.02 5111 11.89
2.70 3534 3.53 3743 4.38 3946 5.25 4144 6.15 4331 7.07 4663 8.94 4964 10.85
3.15 3714 4.04 3913 4.94 4105 5.86 4294 6.81 4477 7.78 4808 9.74 5103 11.75
3.66 3896 4.60 4086 5.55 4269 6.51 4448 7.51 4624 8.52 4954 10.60
4.85 4267 5.90 4441 6.96 4609 8.02 4772 9.10 4932 10.21
6.30 4644 7.45 4805 8.62 4960 9.79 5111 10.96
Class I — 3957
Class II — 5158
Selections above 4000 RPM not recommended. Consult factory.
BAE DWDI 135
Outlet Area - 1.89 ft2
CFM OV
1512
1890
2268
2646
3024
3402
3780
4158
4536
4914
5292
5670
6048
6426
7182
7938
0.5" SP
Wheel Dia. - 13.50 inches
1" SP
2" SP
3" SP
Tip Speed - 3.53 x RPM
4" SP
5" SP
6" SP
Max. BHP = 0.159 (RPM÷1000)3
8" SP
10" SP
12" SP
14" SP
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
800
1000
1200
1400
1600
1800
2000
2200
2400
2600
2800
3000
3200
3400
3800
4200
1046
1164
1293
1433
1582
1734
1888
2044
2202
2361
2522
2683
2846
3009
3337
3667
MAXIMUM RPM:
0.18
0.25
0.33
0.43
0.57
0.73
0.92
1.15
1.41
1.72
2.08
2.48
2.94
3.46
4.67
6.15
1335
1410
1519
1638
1764
1898
2042
2190
2341
2494
2648
2804
2961
3119
3438
3760
0.36
0.45
0.55 1908 1.07
0.68 1987 1.25 2317 1.89
0.84 2092 1.45 2385 2.14 2671 2.89
1.03 2209 1.69 2475 2.41 2735 3.20 2989 4.06
1.25 2329 1.96 2585 2.74 2820 3.57 3053 4.45 3282 5.40
1.51 2454 2.27 2702 3.10 2923 3.97 3136 4.90 3348 5.88
1.81 2585 2.62 2822 3.50 3038 4.43 3236 5.39 3431 6.41 3817 8.59
2.15 2723 3.02 2945 3.95 3156 4.93 3348 5.95 3529 7.00 3889 9.25 4242 11.68
2.54 2866 3.46 3074 4.44 3276 5.47 3465 6.55 3639 7.64 3975 9.98 4307 12.47
2.98 3014 3.96 3207 4.99 3400 6.07 3584 7.20 3756 8.36 4074 10.76 4386 13.34
3.47 3163 4.52 3346 5.59 3528 6.73 3705 7.90 3875 9.12 4184 11.63
4.02 3315 5.13 3489 6.26 3660 7.44 3830 8.67 3995 9.94 4299 12.55
5.29 3622 6.54 3785 7.79 3938 9.06 4091 10.39 4243 11.75
6.84 3932 8.22 4087 9.60 4230 10.98 4368 12.40
Class I — 3374
Class II — 4398
Selections above 4000 RPM not recommended. Consult factory.
BAE DWDI 150
Outlet Area - 2.33 ft2
CFM OV
1864
2330
2796
3262
3728
4194
4660
5126
5592
6058
6524
6990
7456
7922
8854
9786
0.5" SP
Wheel Dia. - 15.00 inches
1" SP
2" SP
3" SP
4" SP
5" SP
6" SP
Max. BHP = 0.244 (RPM÷1000)3
8" SP
10" SP
12" SP
14" SP
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
800
1000
1200
1400
1600
1800
2000
2200
2400
2600
2800
3000
3200
3400
3800
4200
983
1103
1233
1374
1520
1670
1823
1979
2136
2295
2455
2616
2778
2941
3268
3596
MAXIMUM RPM:
0.23
0.32
0.43
0.58
0.76
0.99
1.25
1.57
1.95
2.38
2.88
3.45
4.10
4.83
6.55
8.64
1202
1313
1431
1551
1679
1815
1957
2103
2252
2403
2556
2711
2868
3026
3344
3666
0.43
0.55 1636 1.07
0.70 1737 1.28 1995 1.93
0.88 1848 1.54 2089 2.24 2309 3.00
1.10 1966 1.83 2199 2.60 2403 3.40 2595 4.27
1.36 2085 2.17 2313 3.01 2513 3.88 2693 4.79 2863 5.75
1.67 2206 2.54 2432 3.46 2625 4.41 2803 5.39 2965 6.39 3272 8.55
2.03 2333 2.97 2551 3.97 2743 4.99 2914 6.03 3075 7.12 3365 9.34 3646 11.81
2.45 2467 3.46 2672 4.53 2862 5.63 3031 6.75 3187 7.89 3474 10.27 3732 12.74 3991 15.48
2.92 2605 4.01 2796 5.14 2981 6.32 3150 7.52 3303 8.74 3583 11.25 3838 13.86 4074 16.57
3.46 2747 4.63 2927 5.83 3102 7.08 3269 8.36 3422 9.66 3696 12.30 3949 15.08 4178 17.88
4.07 2892 5.33 3062 6.59 3228 7.91 3389 9.26 3541 10.64 3813 13.45 4058 16.32
4.76 3039 6.09 3201 7.44 3358 8.82 3512 10.25 3661 11.70 3932 14.67 4172 17.67
5.53 3189 6.95 3343 8.36 3492 9.81 3638 11.31 3782 12.84 4051 15.96
7.32 3492 8.90 3634 10.49 3771 12.09 3904 13.71 4034 15.37
9.51 3801 11.24 3932 13.00 4059 14.76 4182 16.53
Class I — 3232
Class II — 4213
Performance certified is for installation Type B & D: Free
or ducted inlet, ducted outlet.
Power rating (BHP) does not include transmission losses.
Performance ratings do not include the effects of appurtenances (accessories).
28
Tip Speed - 3.93 x RPM
Selections above 4000 RPM not recommended. Consult factory.
Legend:
Class I = Regular face to left of Class II
Class III = Italic face to right of Class II
Class II = Regular face in light shaded area Class IV= Italic face in darker shaded area
Max. Static Efficiency = Underlined
Twin City Bulletin 370
BAE DWDI 165
Outlet Area - 2.82 ft2
0.5" SP
Wheel Dia. - 16.50 inches
1" SP
2" SP
3" SP
Max. BHP = 0.433 (RPM÷1000)3
Tip Speed - 4.32 x RPM
4" SP
5" SP
6" SP
8" SP
10" SP
12" SP
14" SP
CFM OV RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
2256
2820
3384
3948
4512
5076
5640
6204
6768
7332
7896
8460
9024
9588
10716
11844
800
1000
1200
1400
1600
1800
2000
2200
2400
2600
2800
3000
3200
3400
3800
4200
855
952
1057
1172
1293
1417
1543
1671
1800
1930
2061
2193
2326
2459
2727
2997
MAXIMUM RPM:
0.27
0.37
0.49
0.65
0.84
1.08
1.37
1.71
2.11
2.57
3.10
3.70
4.38
5.15
6.95
9.16
1092 0.54
1153 0.66
1242 0.83 1561 1.60
1339 1.02 1625 1.86 1895 2.82
1442 1.25 1711 2.17 1950 3.18 2185 4.32
1552 1.53 1806 2.52 2024 3.60 2237 4.78 2445 6.06
1669 1.86 1904 2.93 2114 4.08 2306 5.32 2497 6.64 2685 8.06
1790 2.25 2006 3.39 2210 4.63 2390 5.92 2565 7.31 2738 8.76
1913 2.69 2114 3.91 2308 5.23 2484 6.61 2646 8.04 2806 9.56 3122 12.81
2039 3.21 2226 4.50 2408 5.88 2581 7.35 2737 8.86 2886 10.44 3181 13.81 3470 17.43
2165 3.78 2343 5.16 2513 6.62 2679 8.17 2833 9.76 2976 11.40 3251 14.89 3523 18.61
2292 4.43 2464 5.91 2622 7.43 2780 9.06 2931 10.74 3071 12.46 3332 16.06 3587 19.90
2420 5.16 2586 6.73 2735 8.33 2884 10.02 3030 11.79 3168 13.59 3421 17.34
2549 5.98 2710 7.65 2853 9.33 2992 11.08 3132 12.93 3266 14.81 3516 18.73
2810 7.89 2960 9.74 3094 11.61 3220 13.52 3345 15.49 3470 17.54
3073 10.19 3214 12.25 3341 14.30 3458 16.37 3571 18.48
Class I — 2761
Class II — 3599
BAE DWDI 182
Outlet Area - 3.45 ft2
0.5" SP
Wheel Dia. - 18.25 inches
1" SP
2" SP
3" SP
Max. BHP = 0.834 (RPM÷1000)3
Tip Speed - 4.78 x RPM
4" SP
5" SP
6" SP
8" SP
10" SP
12" SP
14" SP
CFM OV RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
2760
3450
4140
4830
5520
6210
6900
7590
8280
8970
9660
10350
11040
11730
13110
14490
800
1000
1200
1400
1600
1800
2000
2200
2400
2600
2800
3000
3200
3400
3800
4200
709 0.29
781 0.40 963 0.71
863 0.53 1026 0.90 1330 1.77
954 0.69 1100 1.11 1359 2.00
1051 0.90 1179 1.35 1417 2.34 1643 3.45
1151 1.16 1266 1.64 1489 2.75 1686 3.87 1891 5.21
1255 1.47 1358 1.99 1563 3.18 1750 4.42 1926 5.71 2112 7.24
1360 1.84 1455 2.41 1641 3.65 1822 5.04 1984 6.38 2145 7.84 2315 9.55
1467 2.27 1554 2.88 1725 4.19 1896 5.68 2053 7.17 2199 8.64 2348 10.28 2660 14.13
1575 2.78 1656 3.43 1815 4.82 1972 6.36 2126 8.02 2265 9.59 2400 11.21 2681 14.97 2968 19.34
1683 3.36 1759 4.05 1908 5.53 2054 7.13 2200 8.88 2338 10.64 2465 12.33 2717 15.97 2984 20.33
1793 4.02 1864 4.76 2003 6.32 2140 7.98 2277 9.80 2411 11.70 2536 13.55 2770 17.23 3012 21.47 3263 26.33
1903 4.77 1970 5.56 2101 7.20 2230 8.94 2357 10.79 2486 12.79 2609 14.82 2835 18.72 3055 22.84 3286 27.61 3520
2014 5.62 2077 6.45 2201 8.18 2323 10.00 2443 11.91 2563 13.95 2683 16.11 2905 20.32 3111 24.48 3322 29.12 3541
2237 7.62 2294 8.55 2405 10.45 2515 12.43 2623 14.48 2730 16.62 2838 18.90 3051 23.70 3248 28.41 3432 33.01 3618
2461 10.06 2512 11.07 2614 13.16 2714 15.32 2813 17.54 2910 19.81 3007 22.18 3203 27.29 3394 32.63 3571 37.79 3739
MAXIMUM RPM:
Class I — 2248
Class II — 2930
Class III — 3695
Class IV — 4080
32.87
34.33
37.98
42.88
Selections above 4000 RPM are not recommended. Consult factory.
BAE DWDI 200
Outlet Area - 4.14 ft2
0.5" SP
Wheel Dia. - 20.00 inches
1" SP
2" SP
3" SP
Tip Speed - 5.23 x RPM
4" SP
5" SP
6" SP
Max. BHP = 1.32 (RPM÷1000)3
8" SP
10" SP
12" SP
14" SP
CFM OV RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
3312
4140
4968
5796
6624
7452
8280
9108
9936
10764
11592
12420
13248
14076
15732
17388
800
1000
1200
1400
1600
1800
2000
2200
2400
2600
2800
3000
3200
3400
3800
4200
646 0.35
713 0.48 879 0.86
787 0.63 936 1.07 1213 2.12
870 0.83 1003 1.33 1240 2.40
958 1.08 1075 1.62 1293 2.81 1499 4.14
1050 1.39 1154 1.97 1358 3.30 1538 4.64 1725 6.25
1144 1.76 1239 2.39 1426 3.82 1596 5.30 1757 6.84 1927 8.69
1240 2.20 1327 2.88 1497 4.38 1662 6.05 1809 7.64 1957 9.41 2112 11.46
1337 2.72 1418 3.46 1574 5.04 1729 6.81 1873 8.61 2006 10.37 2142 12.33 2427 16.96
1436 3.33 1510 4.11 1655 5.78 1799 7.64 1939 9.61 2067 11.52 2189 13.44 2446 17.96 2708 23.21
1535 4.02 1604 4.86 1740 6.63 1873 8.54 2006 10.64 2132 12.75 2248 14.78 2479 19.17 2723 24.41
1635 4.82 1700 5.71 1827 7.58 1951 9.56 2076 11.73 2199 14.03 2313 16.25 2527 20.67 2748 25.76 2977 31.59
1736 5.73 1797 6.67 1916 8.64 2034 10.72 2150 12.94 2267 15.34 2380 17.78 2586 22.45 2787 27.41 2998 33.13 3212
1837 6.74 1894 7.73 2007 9.81 2118 11.98 2228 14.28 2338 16.74 2447 19.32 2650 24.38 2838 29.37 3031 34.95 3231
2040 9.13 2091 10.23 2193 12.52 2294 14.91 2392 17.36 2490 19.93 2589 22.68 2783 28.43 2963 34.08 3131 39.61 3300
2244 12.06 2291 13.28 2384 15.78 2475 18.36 2565 21.02 2654 23.76 2743 26.61 2921 32.72 3095 39.10 3258 45.36 3411
MAXIMUM RPM:
Class I — 2051
Class II — 2674
Performance certified is for installation Type B & D: Free
or ducted inlet, ducted outlet.
Power rating (BHP) does not include transmission losses.
Performance ratings do not include the effects of appurtenances (accessories).
29
Class III — 3372
39.46
41.21
45.54
51.45
Class IV — 3723
Legend:
Class I = Regular face to left of Class II
Class III = Italic face to right of Class II
Class II = Regular face in light shaded area Class IV= Italic face in darker shaded area
Max. Static Efficiency = Underlined
Twin City Bulletin 370
BAE DWDI 222
Outlet Area - 5.12 ft2
0.5" SP
Wheel Dia. - 22.25 inches
1" SP
2" SP
3" SP
Tip Speed - 5.83 x RPM
4" SP
5" SP
6" SP
Max. BHP = 2.17 (RPM÷1000)3
8" SP
10" SP
12" SP
14" SP
CFM OV RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
4096
5120
6144
7168
8192
9216
10240
11264
12288
13312
14336
15360
16384
17408
19456
21504
800
1000
1200
1400
1600
1800
2000
2200
2400
2600
2800
3000
3200
3400
3800
4200
580 0.42
639 0.56 788 1.04
709 0.75 839 1.28 1077 2.54
782 0.98 900 1.57 1111 2.90
859 1.26 968 1.94 1159 3.36 1339 5.01
940 1.61 1039 2.35 1216 3.89 1380 5.61 1538 7.54
1023 2.03 1114 2.83 1279 4.52 1431 6.33 1576 8.30 1718 10.49 1857 12.82
1108 2.53 1191 3.39 1346 5.22 1488 7.14 1623 9.19 1755 11.43 1883 13.83
1194 3.11 1270 4.03 1417 6.02 1550 8.05 1677 10.20 1800 12.50 1920 14.95 2154 20.33
1281 3.79 1352 4.77 1490 6.90 1617 9.08 1736 11.33 1852 13.72 1964 16.21 2184 21.71 2399 27.73
1369 4.57 1435 5.61 1564 7.86 1686 10.21 1799 12.57 1909 15.07 2016 17.68 2223 23.25 2425 29.42
1458 5.46 1519 6.56 1641 8.94 1758 11.46 1866 13.96 1970 16.54 2072 19.26 2268 24.97 2459 31.21 2646 37.95
1547 6.46 1605 7.64 1719 10.12 1831 12.80 1935 15.46 2034 18.15 2131 20.96 2318 26.85 2500 33.19 2678 40.07 2853
1637 7.60 1691 8.83 1799 11.44 1905 14.23 2006 17.08 2102 19.93 2194 22.82 2374 28.95 2547 35.42 2717 42.38 2883
1817 10.27 1866 11.64 1962 14.47 2058 17.50 2153 20.69 2243 23.87 2328 27.02 2493 33.53 2653 40.40 2809 47.63 2961
1998 13.53 2043 15.04 2130 18.12 2217 21.37 2304 24.80 2389 28.33 2470 31.83 2624 38.85 2773 46.16 2917 53.72 3058
MAXIMUM RPM:
Class I — 1837
Class II — 2395
Class III — 3020
47.37
49.79
55.19
61.59
Class IV — 3347
BAE DWDI 245
Outlet Area - 6.21 ft2
0.5" SP
Wheel Dia. - 24.50 inches
1" SP
2" SP
3" SP
Tip Speed - 6.41 x RPM
4" SP
5" SP
6" SP
Max. BHP = 3.51 (RPM÷1000)3
8" SP
10" SP
12" SP
14" SP
CFM OV RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
4968
6210
7452
8694
9936
11178
12420
13662
14904
16146
17388
18630
19872
21114
23598
26082
800
1000
1200
1400
1600
1800
2000
2200
2400
2600
2800
3000
3200
3400
3800
4200
526 0.51
581 0.69 716 1.26
644 0.91 762 1.55 978 3.08
711 1.20 817 1.91 1010 3.53
781 1.54 879 2.35 1053 4.07 1216 6.07
854 1.95 944 2.85 1105 4.73 1253 6.79 1397 9.15
929 2.46 1012 3.44 1162 5.48 1299 7.66 1432 10.08 1560 12.72 1686 15.54
1006 3.06 1082 4.11 1223 6.34 1352 8.67 1474 11.14 1594 13.86 1710 16.77
1085 3.78 1154 4.89 1287 7.30 1408 9.76 1523 12.37 1635 15.17 1744 18.14 1956 24.64
1164 4.60 1228 5.78 1353 8.36 1468 11.00 1577 13.75 1682 16.64 1784 19.67 1984 26.35 2178 33.60
1244 5.54 1303 6.80 1421 9.54 1531 12.38 1634 15.25 1734 18.28 1831 21.44 2019 28.20 2202 35.66
1324 6.62 1380 7.96 1490 10.83 1596 13.88 1695 16.94 1789 20.06 1882 23.36 2060 30.28 2234 37.88 2403 46.02
1405 7.84 1458 9.26 1561 12.27 1663 15.52 1758 18.76 1848 22.03 1936 25.44 2106 32.59 2271 40.28 2432 48.58 2591
1487 9.22 1536 10.71 1634 13.88 1731 17.28 1822 20.71 1909 24.16 1993 27.69 2156 35.10 2313 42.95 2467 51.36 2618
1651 12.47 1695 14.12 1783 17.58 1870 21.25 1955 25.07 2037 28.94 2115 32.79 2265 40.70 2410 49.03 2551 57.75 2690
1815 16.42 1856 18.25 1935 21.99 2014 25.93 2093 30.10 2170 34.36 2244 38.64 2384 47.17 2518 55.94 2650 65.20 2778
MAXIMUM RPM:
Class I — 1668
Class II — 2175
Class III — 2742
57.44
60.36
66.98
74.75
Class IV — 3039
BAE DWDI 270
Outlet Area - 7.54 ft2
0.5" SP
Wheel Dia. - 27.00 inches
1" SP
2" SP
3" SP
Tip Speed - 7.07 x RPM
4" SP
5" SP
6" SP
Max. BHP = 5.43 (RPM÷1000)3
8" SP
10" SP
12" SP
14" SP
CFM OV RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
6032
7540
9048
10556
12064
13572
15080
16588
18096
19604
21112
22620
24128
25636
28652
31668
800
1000
1200
1400
1600
1800
2000
2200
2400
2600
2800
3000
3200
3400
3800
4200
482 0.61 618 1.17
535 0.82 652 1.48
595 1.10 698 1.85 884 3.51
657 1.44 752 2.29 919 4.14 1073 6.15
721 1.85 811 2.82 964 4.86 1104 7.04 1237 9.38
789 2.36 872 3.43 1014 5.66 1144 8.05 1266 10.54 1384 13.17
859 2.98 935 4.14 1070 6.59 1190 9.15 1304 11.84 1413 14.62 1520 17.56
930 3.71 999 4.94 1128 7.62 1241 10.37 1348 13.25 1451 16.26 1550 19.32 1743 25.88
1003 4.58 1066 5.89 1189 8.79 1296 11.74 1397 14.81 1493 17.96 1587 21.25 1767 28.03 1944 35.43
1077 5.60 1134 6.97 1251 10.08 1354 13.25 1449 16.49 1541 19.86 1629 23.30 1800 30.49 1964 37.99 2127 46.11
1151 6.76 1204 8.21 1313 11.48 1414 14.91 1504 18.33 1592 21.91 1676 25.54 1838 33.09 1994 40.94 2146 49.19 2297
1226 8.10 1276 9.65 1377 13.05 1475 16.72 1563 20.38 1645 24.08 1726 27.93 1881 35.87 2030 44.13 2174 52.63 2315
1301 9.60 1348 11.24 1442 14.77 1537 18.68 1622 22.55 1702 26.49 1779 30.52 1927 38.79 2069 47.40 2208 56.36 2342
1377 11.31 1421 13.03 1509 16.70 1599 20.77 1683 24.92 1761 29.09 1834 33.26 1977 41.97 2113 50.93 2246 60.26 2374
1529 15.32 1568 17.20 1647 21.20 1727 25.55 1807 30.19 1882 34.85 1951 39.44 2083 48.89 2210 58.63 2332 68.59 2451
1682 20.24 1718 22.32 1789 26.63 1860 31.21 1933 36.17 2005 41.33 2073 46.49 2197 56.70 2315 67.17 2430 77.94 2541
MAXIMUM RPM:
Class I — 1541
Class II — 2009
Performance certified is for installation Type B & D: Free
or ducted inlet, ducted outlet.
Power rating (BHP) does not include transmission losses.
Performance ratings do not include the effects of appurtenances (accessories).
30
Class III — 2533
57.98
61.52
65.48
69.69
78.84
88.90
Class IV — 2756
Legend:
Class I = Regular face to left of Class II
Class III = Italic face to right of Class II
Class II = Regular face in light shaded area Class IV= Italic face in darker shaded area
Max. Static Efficiency = Underlined
Twin City Bulletin 370
BAE DWDI 300
Outlet Area - 9.31 ft2
0.5" SP
Wheel Dia. - 30.00 inches
1" SP
2" SP
3" SP
Tip Speed - 7.85 x RPM
4" SP
5" SP
6" SP
Max. BHP = 9.20 (RPM÷1000)3
8" SP
10" SP
12" SP
14" SP
CFM OV RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
7448
9310
11172
13034
14896
16758
18620
20482
22344
24206
26068
27930
29792
31654
35378
39102
800
1000
1200
1400
1600
1800
2000
2200
2400
2600
2800
3000
3200
3400
3800
4200
434
481
535
591
649
710
773
837
903
969
1036
1104
1171
1239
1377
1514
MAXIMUM RPM:
0.75
1.01
1.36
1.77
2.28
2.91
3.67
4.58
5.66
6.91
8.35
10.02
11.86
13.96
18.96
24.99
557
587
629
677
730
785
841
899
959
1021
1084
1148
1213
1279
1412
1546
1.45
1.83
2.29 795 4.32
2.83 827 5.10 966 7.60
3.48 867 5.98 993 8.68 1113 11.57
4.24 913 6.99 1029 9.92 1140 13.03 1246 16.28
5.10 963 8.14 1071 11.29 1174 14.63 1272 18.06 1368 21.68
6.10 1016 9.43 1117 12.81 1213 16.35 1306 20.08 1395 23.86 1569 31.97
7.26 1070 10.85 1166 14.48 1257 18.27 1344 22.19 1428 26.22 1591 34.66 1749 43.71
8.61 1126 12.45 1218 16.33 1304 20.36 1387 24.53 1466 28.76 1620 37.64 1768 46.94 1915 57.00
10.15 1182 14.18 1272 18.38 1354 22.65 1433 27.06 1508 31.50 1655 40.91 1795 50.58 1931 60.69 2067
11.90 1239 16.09 1327 20.61 1406 25.13 1481 29.76 1554 34.52 1693 44.29 1827 54.48 1956 64.92 2084
13.87 1298 18.24 1383 23.05 1460 27.85 1532 32.72 1601 37.67 1735 47.95 1863 58.60 1987 69.56 2108
16.09 1358 20.61 1439 25.64 1515 30.78 1585 35.92 1651 41.10 1779 51.79 1902 62.90 2021 74.36 2137
21.27 1482 26.16 1554 31.52 1626 37.24 1694 43.03 1756 48.70 1874 60.29 1989 72.39 2099 84.71 2206
27.54 1610 32.87 1674 38.53 1740 44.68 1805 51.07 1866 57.42 1978 70.07 2084 82.99 2187 96.23 2287
Class I — 1387
Class II — 1808
Class III — 2280
71.55
76.01
80.87
86.09
97.35
109.77
Class IV — 2480
BAE DWDI 330
Outlet Area - 11.27 ft2
0.5" SP
Wheel Dia. - 33.00 inches
1" SP
2" SP
3" SP
Tip Speed - 8.64 x RPM
4" SP
5" SP
6" SP
Max. BHP = 14.81 (RPM÷1000)3
8" SP
10" SP
12" SP
14" SP
CFM OV RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
9016
11270
13524
15778
18032
20286
22540
24794
27048
29302
31556
33810
36064
38318
42826
47334
800
1000
1200
1400
1600
1800
2000
2200
2400
2600
2800
3000
3200
3400
3800
4200
394
438
487
537
590
646
703
762
821
881
942
1004
1065
1127
1252
1377
MAXIMUM RPM:
0.90
1.23
1.65
2.14
2.76
3.53
4.45
5.56
6.85
8.36
10.11
12.13
14.37
16.92
22.95
30.28
506
534
572
616
664
714
765
818
872
928
986
1044
1103
1163
1284
1406
1.75
2.22
2.77 723 5.24
3.43 752 6.18 878 9.19
4.22 789 7.26 903 10.52 1012 14.01
5.13 830 8.46 936 12.02 1036 15.75 1133 19.71
6.18 875 9.83 974 13.68 1067 17.69 1157 21.89 1244 26.26
7.40 923 11.38 1016 15.52 1103 19.80 1187 24.28 1268 28.86 1426 38.67
8.79 973 13.14 1060 17.52 1143 22.12 1222 26.86 1299 31.79 1446 41.91 1590 52.90
10.41 1024 15.08 1108 19.80 1186 24.67 1261 29.69 1333 34.82 1473 45.58 1607 56.78 1741 69.00
12.30 1075 17.18 1157 22.28 1231 27.41 1303 32.76 1372 38.21 1504 49.45 1632 61.23 1756 73.52 1880
14.41 1127 19.51 1207 24.98 1279 30.46 1347 36.06 1413 41.79 1539 53.58 1661 65.94 1779 78.67 1894
16.79 1180 22.07 1258 27.93 1328 33.75 1393 39.61 1456 45.63 1577 57.99 1694 70.96 1806 84.13 1916
19.48 1235 24.96 1309 31.08 1378 37.30 1441 43.47 1501 49.73 1618 62.75 1729 76.10 1838 90.09 1943
25.76 1348 31.70 1414 38.24 1479 45.14 1540 52.07 1597 58.99 1704 72.99 1808 87.56 1908 102.47 2006
33.36 1464 39.80 1523 46.73 1582 54.07 1641 61.80 1696 69.43 1798 84.75 1895 100.48 1989 116.58 2080
Class I — 1261
Class II — 1644
Class III — 2072
86.72
91.92
97.81
104.23
117.90
133.00
Class IV — 2255
BAE DWDI 365
Outlet Area - 13.79 ft2
0.5" SP
Wheel Dia. - 36.50 inches
1" SP
2" SP
3" SP
Tip Speed - 9.56 x RPM
4" SP
5" SP
6" SP
Max. BHP = 25.56 (RPM÷1000)3
8" SP
10" SP
12" SP
14" SP
CFM OV RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
11032
13790
16548
19306
22064
24822
27580
30338
33096
35854
38612
41370
44128
46886
52402
57918
800
1000
1200
1400
1600
1800
2000
2200
2400
2600
2800
3000
3200
3400
3800
4200
350
387
429
474
521
569
619
670
721
773
826
879
932
986
1093
1202
MAXIMUM RPM:
1.09
1.47 477 2.72
1.95 507 3.33 660 6.78
2.54 544 4.08 673 7.63
3.28 586 5.01 700 8.76 816 13.28
4.15 630 6.09 735 10.13 834 14.68 939 20.03
5.22 675 7.33 774 11.74 864 16.48 954 21.79 1049 27.85
6.48 722 8.78 815 13.54 900 18.60 980 23.98 1063 30.02 1150 36.76
7.93 770 10.44 859 15.62 938 20.93 1013 26.56 1087 32.65 1164 39.37 1321 54.37
9.62 819 12.32 903 17.87 979 23.58 1050 29.50 1119 35.80 1187 42.45 1331 57.54
11.58 868 14.42 949 20.42 1021 26.45 1089 32.73 1154 39.24 1217 46.03 1346 61.05 1483 78.35
13.80 919 16.85 995 23.18 1065 29.66 1130 36.27 1192 43.08 1252 50.14 1370 65.26 1494 82.36 1621 101.35
16.29 970 19.54 1042 26.23 1110 33.16 1172 40.08 1231 47.16 1289 54.57 1400 70.04 1512 87.02 1631 106.08 1748
19.12 1021 22.50 1090 29.60 1155 36.89 1216 44.30 1272 51.63 1327 59.26 1434 75.35 1538 92.49 1646 111.37 1759
25.69 1126 29.55 1188 37.33 1248 45.38 1305 53.57 1359 61.85 1410 70.13 1508 87.21 1603 105.26 1696 124.27 1791
33.81 1231 37.96 1289 46.60 1344 55.37 1397 64.30 1448 73.36 1497 82.53 1588 100.79 1677 120.04 1763 140.02 1847
Class I — 1114
Class II — 1452
Performance certified is for installation Type B & D: Free
or ducted inlet, ducted outlet.
Power rating (BHP) does not include transmission losses.
Performance ratings do not include the effects of appurtenances (accessories).
31
Class III — 1831
126.39
132.18
144.74
160.76
Class IV — 2040
Legend:
Class I = Regular face to left of Class II
Class III = Italic face to right of Class II
Class II = Regular face in light shaded area Class IV= Italic face in darker shaded area
Max. Static Efficiency = Underlined
Twin City Bulletin 370
BAE DWDI 402
Outlet Area - 16.77 ft2
0.5" SP
Wheel Dia. - 40.25 inches Tip Speed - 10.54 x RPM
1" SP
2" SP
3" SP
4" SP
5" SP
6" SP
Max. BHP = 41.68 (RPM÷1000)3
8" SP
10" SP
12" SP
14" SP
CFM OV RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
13416
16770
20124
23478
26832
30186
33540
36894
40248
43602
46956
50310
53664
57018
63726
70434
800
1000
1200
1400
1600
1800
2000
2200
2400
2600
2800
3000
3200
3400
3800
4200
317
351
389
430
473
516
561
607
654
701
749
797
845
894
992
1090
MAXIMUM RPM:
1.33
1.79 433 3.32
2.37 460 4.06 599 8.27
3.10 494 4.98 610 9.27
4.00 531 6.08 635 10.66 740 16.16
5.05 571 7.40 667 12.35 756 17.83 852 24.40
6.33 612 8.91 702 14.28 784 20.07 865 26.49 952 33.95
7.85 655 10.69 739 16.46 816 22.61 889 29.19 964 36.51 1043 44.72
9.65 698 12.68 779 19.00 850 25.40 919 32.34 986 39.73 1055 47.80 1198 66.13
11.70 742 14.94 819 21.74 887 28.60 952 35.86 1014 43.44 1076 51.57 1207 69.97
14.08 788 17.59 860 24.78 926 32.18 987 39.73 1047 47.78 1104 56.03 1221 74.31 1345 95.32
16.77 833 20.46 902 28.16 966 36.09 1024 44.01 1081 52.39 1135 60.91 1242 79.30 1355 100.20 1470 123.25
19.79 880 23.79 945 31.90 1006 40.25 1063 48.77 1116 57.30 1169 66.37 1270 85.26 1371 105.79 1479 128.99 1586
23.24 926 27.37 989 36.05 1047 44.80 1103 53.92 1154 62.87 1204 72.18 1301 91.76 1395 112.54 1493 135.53 1595
31.32 1021 35.92 1078 45.48 1132 55.23 1184 65.24 1232 75.14 1279 85.35 1368 106.17 1454 128.09 1538 151.12 1624
41.11 1117 46.24 1169 56.68 1219 67.37 1267 78.22 1313 89.19 1357 100.25 1441 122.81 1521 146.04 1599 170.35 1675
Class I — 1010
Class II — 1317
Class III — 1661
153.95
160.71
175.96
195.52
Class IV — 1850
BAE DWDI 445
Outlet Area - 20.49 ft2
0.5" SP
Wheel Dia. - 44.50 inches Tip Speed - 11.65 x RPM
1" SP
2" SP
3" SP
4" SP
5" SP
6" SP
Max. BHP = 68.85 (RPM÷1000)3
8" SP
10" SP
12" SP
14" SP
CFM OV RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
16392
20490
24588
28686
32784
36882
40980
45078
49176
53274
57372
61470
65568
69666
77862
86058
800
1000
1200
1400
1600
1800
2000
2200
2400
2600
2800
3000
3200
3400
3800
4200
287
317
352
389
427
467
508
549
591
634
677
721
764
808
897
986
MAXIMUM RPM:
1.63
2.17 391 4.04
2.90 416 4.96 542 10.11
3.79 446 6.06 552 11.34
4.86 481 7.46 574 13.00 669 19.72
6.19 517 9.07 603 15.07 684 21.81 770 29.74
7.77 554 10.92 635 17.46 709 24.52 782 32.33 861 41.47
9.60 592 13.04 669 20.17 738 27.63 804 35.67 872 44.63 943 54.58
11.76 631 15.47 704 23.17 769 31.07 831 39.50 892 48.59 954 58.37 1083 80.68
14.29 671 18.26 741 26.60 803 35.06 861 43.82 917 53.07 973 62.98 1092 85.58
17.18 712 21.44 778 30.31 837 39.26 893 48.61 946 58.22 998 68.37 1104 90.73 1216 116.33
20.51 753 24.97 816 34.44 873 44.01 926 53.76 977 63.89 1027 74.54 1124 97.08 1226 122.58 1329 150.42
24.17 795 28.98 855 39.03 910 49.22 961 59.52 1010 70.17 1057 81.05 1148 104.02 1240 129.27 1338 157.73 1434
28.34 838 33.52 894 43.99 947 54.77 997 65.78 1044 76.90 1089 88.23 1176 111.95 1261 137.31 1350 165.49 1443
38.25 923 43.84 974 55.41 1023 67.34 1070 79.55 1114 91.77 1156 104.10 1237 129.67 1315 156.52 1391 184.67 1469
50.27 1010 56.47 1057 69.22 1102 82.22 1146 95.62 1188 109.14 1228 122.72 1303 149.99 1375 178.23 1446 208.10 1515
Class I — 914
Class II — 1191
Class III — 1502
187.94
196.54
215.11
238.97
Class IV — 1673
BAE DWDI 490
Outlet Area - 24.85 ft2
0.5" SP
Wheel Dia. - 49.00 inches Tip Speed - 12.83 x RPM
1" SP
2" SP
3" SP
4" SP
5" SP
6" SP
Max. BHP = 111.4 (RPM÷1000)3
8" SP
10" SP
12" SP
14" SP
CFM OV RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
19880 800
24850 1000
29820 1200
34790 1400
39760 1600
44730 1800
49700 2000
54670 2200
59640 2400
64610 2600
69580 2800
74550 3000
79520 3200
84490 3400
94430 3800
104370 4200
261
288
320
353
388
424
461
499
537
576
615
655
694
734
814
895
MAXIMUM RPM:
1.98
2.64 355 4.90
3.52 377 5.97 492 12.25
4.58 405 7.34 501 13.73
5.90 437 9.06 521 15.74 608 23.96
7.49 469 10.96 548 18.31 621 26.42 700 36.18
9.40 503 13.23 576 21.09 644 29.75 711 39.34 782 50.31
11.67 538 15.84 607 24.39 670 33.46 730 43.22 792 54.13 857 66.33
14.28 573 18.75 640 28.17 699 37.77 755 47.95 810 58.90 867 70.93 984 97.97
17.35 610 22.20 673 32.26 729 42.46 782 53.14 833 64.39 884 76.46 992 103.86
20.84 647 26.04 707 36.82 761 47.76 811 58.94 860 70.81 907 83.08 1003 110.14 1104 140.94 24.89 684 30.29 741 41.74 793 53.39 841 65.19 888 77.66 933 90.47 1020 117.44 1113 148.47 1207 182.42
29.32 722 35.13 776 47.23 827 59.80 873 72.23 917 85.00 960 98.29 1043 126.28 1127 157.12 1215 191.21 1302
34.39 761 40.63 812 53.35 860 66.39 906 79.90 948 93.20 989 106.98 1068 135.73 1146 166.84 1226 200.66 1310
46.27 839 53.30 885 67.29 930 81.89 972 96.53 1012 111.36 1050 126.27 1123 157.05 1194 189.67 1263 223.77 1334
60.85 917 68.41 960 83.94 1001 99.75 1041 116.01 1079 132.36 1115 148.70 1183 181.70 1249 216.24 1313 252.19 1376
Class I — 830
Class II — 1082
Performance certified is for installation Type B & D: Free
or ducted inlet, ducted outlet.
Power rating (BHP) does not include transmission losses.
Performance ratings do not include the effects of appurtenances (accessories).
32
Class III — 1364
227.73
238.06
260.77
289.84
Class IV — 1520
Legend:
Class I = Regular face to left of Class II
Class III = Italic face to right of Class II
Class II = Regular face in light shaded area Class IV= Italic face in darker shaded area
Max. Static Efficiency = Underlined
Twin City Bulletin 370
BAE DWDI 542
Outlet Area - 30.46 ft2
0.5" SP
Wheel Dia. - 54.25 inches Tip Speed - 14.20 x RPM
1" SP
2" SP
3" SP
4" SP
5" SP
6" SP
Max. BHP = 185.4 (RPM÷1000)3
8" SP
10" SP
12" SP
14" SP
CFM OV RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
24368 800
30460 1000
36552 1200
42644 1400
48736 1600
54828 1800
60920 2000
67012 2200
73104 2400
79196 2600
85288 2800
91380 3000
97472 3200
103564 3400
115748 3800
127932 4200
236
260
289
319
351
383
416
451
485
520
556
591
627
663
736
809
MAXIMUM RPM:
2.43
3.23 321 6.02
4.32 341 7.35 444 14.97
5.63 366 9.01 453 16.88
7.27 394 11.05 471 19.34 549 29.34
9.19 424 13.48 495 22.45 561 32.40 632 44.29
11.49 454 16.18 521 25.97 581 36.34 642 48.18 706 61.58
14.33 486 19.43 549 30.01 605 40.98 659 52.89 715 66.26 774 81.28
17.50 518 23.05 578 34.52 631 46.22 682 58.80 731 72.02 783 86.91 889 120.18
21.24 551 27.22 608 39.57 658 51.94 706 65.05 753 79.12 798 93.56 896 127.31
25.62 584 31.86 638 45.01 687 58.46 732 72.09 776 86.53 819 101.75 906 135.04 998 173.19 30.42 618 37.17 669 51.10 717 65.65 760 80.03 802 95.17 842 110.62 922 144.29 1005 181.83 1090 223.48
35.97 653 43.24 701 57.92 747 73.31 789 88.70 828 104.10 867 120.44 942 154.76 1018 192.62 1098 234.75 1176
42.16 687 49.72 733 65.28 777 81.45 818 97.82 856 114.14 893 131.00 965 166.56 1035 204.45 1108 246.39 1183
56.89 757 65.13 799 82.37 840 100.38 878 118.35 914 136.47 949 155.08 1015 192.89 1079 232.84 1141 274.45 1205
74.76 828 83.78 867 102.86 904 122.21 940 142.08 974 161.95 1007 182.22 1069 223.02 1128 264.97 1186 309.18 1243
Class I — 750
Class II — 977
Class III — 1232
279.15
291.64
319.72
355.41
Class IV — 1373
BAE DWDI 600
Outlet Area - 37.26 ft2
0.5" SP
Wheel Dia. - 60.00 inches Tip Speed - 15.71 x RPM
1" SP
2" SP
3" SP
4" SP
5" SP
6" SP
Max. BHP = 306.8 (RPM÷1000)3
8" SP
10" SP
12" SP
14" SP
CFM OV RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
29808 800
37260 1000
44712 1200
52164 1400
59616 1600
67068 1800
74520 2000
81972 2200
89424 2400
96876 2600
104328 2800
111780 3000
119232 3200
126684 3400
141588 3800
156492 4200
213
235
261
289
317
346
377
407
439
470
502
535
567
600
665
731
MAXIMUM RPM:
2.96
3.94 290
7.35
5.26 308
8.96 402 18.39
6.92 331 11.03 410 20.71
8.86 356 13.48 426 23.69 496 35.81
11.21 383 16.44 447 27.35 507 39.58 571 54.05
14.15 411 19.87 471 31.75 526 44.62 580 58.79 638 75.20
17.43 439 23.70 496 36.63 547 50.13 596 64.75 647 81.24 700 99.50
21.48 468 28.13 522 42.08 570 56.39 617 72.05 661 88.11 708 106.33 803 146.57
25.95 498 33.26 549 48.21 595 63.55 639 79.82 680 96.42 722 114.67 810 155.65
31.20 528 38.96 577 55.10 621 71.45 662 88.24 702 106.02 741 124.71 819 165.08 902 211.60
37.34 559 45.52 605 62.54 648 80.20 687 97.83 725 116.34 762 135.68 833 176.09 909 222.65 986 273.75
44.01 590 52.78 634 70.91 675 89.51 713 108.32 749 127.51 784 147.38 852 189.48 920 235.28 992 286.48 1064
51.72 621 60.78 663 79.94 703 99.83 740 119.85 774 139.64 807 159.99 872 203.38 936 250.23 1001 300.66 1070
69.44 685 79.85 723 100.99 759 122.54 794 144.84 827 167.30 858 189.66 917 235.38 975 284.29 1032 336.06 1089
91.27 749 102.63 784 125.86 817 149.29 850 173.85 881 198.33 911 223.26 966 272.33 1020 324.21 1072 377.83 1124
Class I — 678
Class II — 883
Class III — 1114
342.14
357.12
390.53
434.88
Class IV — 1241
BAE DWDI 660
Outlet Area - 45.08 ft2
0.5" SP
Wheel Dia. - 66.00 inches Tip Speed - 17.28 x RPM
1" SP
2" SP
3" SP
4" SP
5" SP
6" SP
Max. BHP = 494.1 (RPM÷1000)3
8" SP
10" SP
12" SP
14" SP
CFM OV RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
36064 800
45080 1000
54096 1200
63112 1400
72128 1600
81144 1800
90160 2000
99176 2200
108192 2400
117208 2600
126224 2800
135240 3000
144256 3200
153272 3400
171304 3800
189336 4200
194
3.60
214
4.80 264
8.93
237
6.34 280 10.84 365 22.17
262
8.31 301 13.36 372 24.91
288 10.71 324 16.37 387 28.60 451 43.35
315 13.62 348 19.86 407 33.25 461 47.92 519 65.37
342 17.01 373 23.92 428 38.37 478 53.93 528 71.42 580 90.99
370 21.09 399 28.65 451 44.34 498 60.92 542 78.42 588 98.21 636 120.19
399 25.97 426 34.17 475 51.07 519 68.55 560 86.75 601 106.66 644 128.87 730 177.34
428 31.56 453 40.32 499 58.30 541 76.93 581 96.63 619 117.14 656 138.52 736 188.06
457 37.91 480 47.14 525 66.84 565 86.66 602 106.87 638 128.17 673 150.47 745 200.10 820 256.02
486 45.08 508 55.02 550 75.68 589 97.00 625 118.63 659 140.71 692 163.65 758 213.68 826 269.05 896 330.82
515 53.12 536 63.73 576 85.64 614 108.50 648 130.96 681 154.35 713 178.53 774 228.79 836 284.31 902 346.84 967
545 62.42 565 73.72 603 96.87 639 120.75 672 144.55 704 169.23 734 193.88 793 246.34 851 302.88 910 363.79 973
605 84.22 623 96.75 657 122.05 690 148.28 722 175.39 751 201.77 780 229.50 834 285.19 887 344.74 938 406.39 990
665 110.67 681 124.23 713 152.47 743 180.85 773 210.58 801 240.07 828 269.98 878 329.32 927 391.95 975 457.82 1021
MAXIMUM RPM:
Class I — 616
Class II — 803
Performance certified is for installation Type B & D: Free
or ducted inlet, ducted outlet.
Power rating (BHP) does not include transmission losses.
Performance ratings do not include the effects of appurtenances (accessories).
33
Class III — 1013
413.62
432.46
472.53
524.94
Class IV — 1128
Legend:
Class I = Regular face to left of Class II
Class III = Italic face to right of Class II
Class II = Regular face in light shaded area Class IV= Italic face in darker shaded area
Max. Static Efficiency = Underlined
Twin City Bulletin 370
BAE DWDI 730
Outlet Area - 55.15 ft2
0.5" SP
Wheel Dia. - 73.00 inches Tip Speed - 19.11 x RPM
1" SP
2" SP
3" SP
4" SP
5" SP
6" SP
Max. BHP = 817.9 (RPM÷1000)3
8" SP
10" SP
12" SP
14" SP
CFM OV RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
44120 800
55150 1000
66180 1200
77210 1400
88240 1600
99270 1800
110300 2000
121330 2200
132360 2400
143390 2600
154420 2800
165450 3000
176480 3200
187510 3400
209570 3800
231630 4200
175
4.38
193
5.82 238 10.83
215
7.84 253 13.24 330 27.12
237 10.18 272 16.32 337 30.66
260 13.04 293 20.04 350 35.02 408 53.14
285 16.70 315 24.38 368 40.69 417 58.71 470 80.36
310 20.97 338 29.46 387 46.95 432 65.90 477 87.18 525 111.71
335 25.91 361 35.13 408 54.35 450 74.41 490 95.92 532 120.41 575 147.02
361 31.84 385 41.75 429 62.28 469 83.74 507 106.57 543 130.22 582 157.46 660 216.96
387 38.62 409 49.12 452 71.72 489 94.04 525 118.02 559 142.81 593 169.38 666 230.66
413 46.32 434 57.69 474 81.43 511 106.13 544 130.55 577 156.95 609 184.57 673 244.19 741 312.75
439 55.00 459 67.19 497 92.44 533 118.99 565 145.08 596 172.31 626 200.55 685 261.05 747 329.41 810 404.60
466 65.14 485 78.16 521 104.91 555 132.65 586 160.33 615 188.19 644 217.77 700 280.16 756 348.05 816 425.08 874
493 76.48 511 90.28 545 118.39 577 147.16 608 177.22 636 206.54 664 237.59 717 301.42 769 369.96 823 445.47 879
547 103.04 563 118.20 594 149.32 624 181.54 652 213.81 679 246.86 705 280.51 754 348.86 802 421.83 848 497.07 895
601 135.23 616 152.20 644 185.98 672 221.48 698 256.65 724 293.46 748 329.48 794 403.17 838 479.31 881 559.11 923
MAXIMUM RPM:
Class I — 557
Class II — 726
Class III — 916
505.53
527.80
577.95
642.00
Class IV — 1020
BAE DWDI 807
Outlet Area - 67.48 ft2
0.5" SP
Wheel Dia. - 80.75 inches Tip Speed - 21.14 x RPM
1" SP
2" SP
3" SP
4" SP
5" SP
6" SP
Max. BHP = 1355 (RPM÷1000)3
8" SP
10" SP
12" SP
14" SP
CFM OV RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
53984 800
67480 1000
80976 1200
94472 1400
107968 1600
121464 1800
134960 2000
148456 2200
161952 2400
175448 2600
188944 2800
202440 3000
215936 3200
229432 3400
256424 3800
283416 4200
158
5.34
175
7.19 216 13.41
194
9.54 229 16.26 298 33.07
214 12.41 246 19.99 304 37.27
235 15.94 265 24.56 316 42.68 369 65.10
257 20.28 285 29.90 332 49.48 377 71.85 425 98.41
280 25.60 305 35.85 350 57.52 391 80.92 431 106.50 474 136.16
303 31.75 326 42.85 368 66.05 407 91.17 443 117.39 481 147.39 520 180.09
326 38.83 348 51.07 388 76.30 424 102.47 458 130.11 491 159.45 526 192.51 597 265.93
349 46.91 370 60.23 408 87.36 442 115.02 475 144.76 506 175.42 536 207.15 602 282.12
373 56.51 392 70.40 429 99.99 462 129.90 492 159.94 522 192.46 550 225.16 609 299.66 670 382.87
397 67.37 415 82.24 450 113.64 481 144.83 511 177.75 539 211.08 566 245.50 619 319.02 675 402.52 733 496.56
421 79.55 438 95.34 471 128.37 502 162.57 530 196.44 556 230.30 583 267.57 633 343.10 684 426.91 737 518.68 790
445 93.16 462 110.50 493 145.13 522 180.46 549 216.08 575 252.78 600 290.33 648 368.50 695 452.30 744 545.04 795
494 125.70 509 144.66 537 182.71 564 222.00 590 262.39 614 302.30 637 342.69 682 427.55 725 516.09 767 609.13 810
543 165.17 557 186.36 582 227.34 607 270.33 631 314.03 654 358.24 677 404.57 718 493.74 758 587.48 797 685.56 835
MAXIMUM RPM:
Class I — 504
Class II — 656
Class III — 828
618.29
646.69
709.54
787.20
Class IV — 922
BAE DWDI 890
Outlet Area - 81.98 ft2
0.5" SP
Wheel Dia. - 89.00 inches Tip Speed - 23.30 x RPM
1" SP
2" SP
3" SP
4" SP
5" SP
6" SP
Max. BHP = 2203 (RPM÷1000)3
8" SP
10" SP
12" SP
14" SP
CFM OV RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
65584 800
81980 1000
98376 1200
114772 1400
131168 1600
147564 1800
163960 2000
180356 2200
196752 2400
213148 2600
229544 2800
245940 3000
262336 3200
278732 3400
311524 3800
344316 4200
144
6.57
159
8.77 196 16.29
176 11.58 208 19.82 271 40.46
194 15.04 223 24.22 276 45.37
214 19.58 240 29.67 287 52.01 335 79.23
234 24.90 258 36.08 302 60.57 342 87.25 385 118.98
254 31.08 277 43.68 317 69.51 354 97.68 391 129.33 430 165.34
275 38.61 296 52.16 334 80.31 369 110.51 402 142.67 436 178.54 472 219.05
296 47.28 316 62.18 352 92.66 385 124.77 416 158.57 446 194.37 477 233.50 542 323.66
317 57.18 336 73.36 370 105.97 401 139.69 431 175.89 459 212.96 487 252.71 546 342.35
339 69.00 356 85.76 389 121.24 419 157.60 446 193.78 473 232.88 499 273.49 552 362.94 608 465.37
360 81.70 377 100.27 408 137.75 437 176.64 463 215.04 489 256.35 513 297.29 562 388.33 613 490.35 665 603.09
382 96.66 398 116.34 427 155.57 455 196.87 481 238.82 505 280.65 529 325.12 574 416.09 620 517.12 669 631.00 717
404 113.37 419 134.06 447 175.94 474 219.75 499 263.90 522 307.60 544 351.93 588 447.80 631 550.55 675 662.02 721
448 152.48 462 175.93 487 221.65 512 270.12 535 318.19 557 367.05 578 416.39 619 519.92 658 627.52 696 740.27 734
493 201.06 505 225.88 528 276.08 551 328.87 573 382.45 594 436.54 614 490.87 651 598.56 688 714.47 723 832.38 757
MAXIMUM RPM:
Class I — 457
Class II — 596
Performance certified is for installation Type B & D: Free
or ducted inlet, ducted outlet.
Power rating (BHP) does not include transmission losses.
Performance ratings do not include the effects of appurtenances (accessories).
34
Class III — 751
751.83
784.61
858.72
954.02
Class IV — 837
Legend:
Class I = Regular face to left of Class II
Class III = Italic face to right of Class II
Class II = Regular face in light shaded area Class IV= Italic face in darker shaded area
Max. Static Efficiency = Underlined
Twin City Bulletin 370
BAE DWDI 982
Outlet Area - 99.90 ft2
0.5" SP
Wheel Dia. - 98.25 inches Tip Speed - 25.72 x RPM
1" SP
2" SP
3" SP
4" SP
5" SP
6" SP
Max. BHP = 3611 (RPM÷1000)3
8" SP
10" SP
12" SP
14" SP
CFM OV RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
79920 800
99900 1000
119880 1200
139860 1400
159840 1600
179820 1800
199800 2000
219780 2200
239760 2400
259740 2600
279720 2800
299700 3000
319680 3200
339660 3400
379620 3800
419580 4200
130
144
159
176
194
212
230
249
268
287
307
326
346
366
406
446
MAXIMUM RPM:
7.92
10.68 177 19.67
14.00 188 24.00 245 49.01
18.41 202 29.52 250 55.28
23.92 218 36.45 260 63.40 303 96.11
30.36 234 44.14 273 73.36 310 106.53 349 145.31
37.83 251 53.28 287 84.57 321 119.40 354 157.36 390 202.23
46.99 268 63.47 303 98.31 334 134.36 364 173.65 395 217.65 427 265.90
57.53 286 75.59 319 113.07 348 151.07 376 191.97 404 236.85 432 284.38 491
69.57 304 89.08 336 130.11 364 171.30 390 213.65 416 259.92 441 307.65 495
84.02 323 105.02 352 147.28 379 191.23 404 236.14 429 284.87 452 333.25 500
99.47 341 121.66 370 168.44 396 215.50 420 263.18 443 312.49 465 363.00 509
117.76 360 141.16 387 189.88 412 239.64 435 289.62 457 341.01 479 395.73 520
138.20 379 162.66 405 214.55 429 267.11 452 321.57 473 375.21 493 429.46 533
186.06 418 213.63 441 269.84 464 329.63 485 388.66 505 448.49 524 508.66
244.06 457 274.46 479 337.96 499 400.48 519 465.94 538 531.78
Class I — 414
Class II — 539
Performance certified is for installation Type B & D: Free
or ducted inlet, ducted outlet.
Power rating (BHP) does not include transmission losses.
Performance ratings do not include the effects of appurtenances (accessories).
35
394.49
418.23
442.22
472.99
507.19
546.82
Legend:
Class I = Regular face to left of Class II
Class III = Italic face to right of Class II
Class II = Regular face in light shaded area Class IV= Italic face in darker shaded area
Max. Static Efficiency = Underlined
Twin City Bulletin 370
HG
CW DBD
D
HN
NOTE 4
HJ
D
HE
GC
GA. SIDES
GA
HE
G
13.00
14.31
15.88
17.44
19.38
21.19
23.56
25.94
28.63
HG
9.31
10.25
11.38
12.50
13.81
15.91
16.81
18.50
20.44
122
135
150
165
182
200
222
245
270
SIZE
122
135
150
165
182
200
222
245
270
17.25
19.06
14.13
15.69
8.69
9.56
10.63
11.69
12.88
HH
9.75
10.81
11.94
13.19
14.56
15.94
17.69
19.44
21.38
B
19.00
20.94
15.31
17.19
9.25
10.25
11.44
12.63
14.00
HJ
0.44
0.44
0.44
0.44
0.44
0.56
0.56
0.56
0.56
BH
CW TAU
DB
HB
SE
KL
HK
13.25
14.56
16.19
17.75
19.50
21.38
23.75
26.06
28.50
C
HH
31.75
35.00
25.75
28.75
15.69
17.31
19.25
21.19
23.56
HD
N
KWY
SIZE
KS
DX
HN
14.50
15.75
17.75
19.00
21.00
22.75
25.50
28.00
30.50
D
25.88
28.56
21.13
23.50
12.94
14.25
15.81
17.38
19.31
DISCH.
FLANGE
P
B
13.31
14.25
11.56
12.44
7.44
8.00
9.06
9.69
10.88
J
1.00
1.00
1.00
1.00
1.25
1.25
1.25
1.25
1.50
DX
5.75
6.31
6.88
7.50
8.19
K
145T
184T
184T
215T
254T
254T
256T
256T
284T
FR
HG
A
10.88
11.81
8.88
10.00
HC
CW UBD
H
GA. SCROLL
GB
OUTS.
HSG.
J
4.5
4.5
3.5
4.0
2.5
2.5
3.0
3.0
3.5
KL
16.00
17.50
19.00
20.50
22.50
25.00
27.25
29.75
33.00
G
D
HA
C
O.D.
INLET
BH
DIA. BASE
HOLES
0.38x0.19
0.38x0.19
0.38x0.19
0.38x0.19
14
14
14
14
14
14
14
14
14
8.00
8.75
9.50
10.25
11.25
12.50
13.63
14.88
16.50
GC
HF
0.38x0.19
0.38x0.19
0.38x0.19
0.38x0.19
KS
CL II
0.25x0.13
0.25x0.13
0.25x0.13
0.25x0.13
0.38x0.19
GB
KS
CL I
0.25x0.13
0.25x0.13
0.25x0.13
0.25x0.13
0.25x0.13
14
14
14
14
12
12
12
12
12
GA
CW BAU
HB
H
23.50
26.38
24.25
23.50
14.50
17.00
17.00
19.88
24.25
L
12.88
14.13
10.63
11.75
6.75
7.38
8.25
8.75
9.63
M
9.75
10.75
11.94
13.13
14.50
15.81
17.69
19.50
21.44
HA
CW BHD
27.00
30.63
31.75
36.13
41.88
43.25
45.25
47.00
51.75
D
HH
HA
0.88
0.88
0.63
0.88
0.50
0.50
0.50
0.63
0.63
N
16.75
18.38
20.31
22.25
24.81
27.00
30.00
33.00
36.44
HB
HE
38.50
42.31
22.50
25.56
26.63
29.75
35.31
36.00
37.13
P
13.94
15.25
16.81
18.38
20.56
22.38
24.75
27.13
30.06
HC
DG
HG
NOTES:
1. DISCHARGE ANGLES ARE INCLUDED ON ALL
DISCHARGES EXCEPT "TAD" AND "DBD."
2. "CW" ROTATION IS SHOWN. "CCW" ROTATION IS
SIMILAR BUT OPPOSITE.
3. SHAFT DIAMETER IS INCREASED TO 1.187 ON
HI-TEMP. FANS WHICH REQUIRE SHAFT COOLERS.
4. STANDARD ARR. 9 MOTOR LOCATION IS ON THE
LEFT FOR "CW" ROTATION UNITS, AND ON THE
RIGHT FOR "CCW" ROTATION. DIMENSION "FR"
EQUALS MAX. MOTOR FRAME.
*
FAN HSG.
CL
M
FOUNDATION PLAN
L
K
K
M
CL
FAN SHAFT
JOB:
SP
CLASS
12.94
14.25
6.44
7.13
7.88
8.69
9.63
10.56
11.75
Q
11.19
12.31
13.75
15.06
16.69
18.38
20.44
22.38
24.69
HD
1.437
1.687
SD
CL I
1.000
1.000
1.000
1.000*
1.187
1.437
1.437
10.56
11.63
12.88
14.13
15.69
17.31
19.06
21.00
23.19
HE
HF
1.687
1.687
SD
CL II
1.000*
1.000*
1.187
1.188
1.437
1.437
1.437
ROT.
5.25
5.25
3.25
3.25
3.75
3.75
4.25
4.25
4.75
SE
122
135
150
165
182
200
222
245
270
SIZE
RPM
DISCH.
9.94
10.94
12.13
13.31
14.75
16.25
17.94
19.75
21.81
ACCESSORIES REQ'D.
CFM
SIZE
S.O. NO.
ENG./ARCH.
CONT.
LOC.
245
270
122
135
150
165
182
200
222
SIZE
BHP
MTR. HP
MINNEAPOLIS, MINNESOTA 55442
OV
TWIN CITY FAN & BLOWER
8-13-82
MTR. LOC.
TS
UNIT NO.
REVISED 7-15-05
DWG. NO. AC-9239F
DRAWN
"BAE" ARR. NO. 9 SWSI ROTATABLE CLASS I & II
DIMENSIONS ARE NOT TO BE USED FOR CONSTRUCTION. CERTIFIED DRAWINGS AVAILABLE UPON REQUEST.
HN
HJ
A
HK
SD
DIA. SHAFT
Q
HC
CW THD
SIZE
CW TAD
D
HD
HF
CL
DISCH.
HA
OUTSIDE
HOUSING
36
Twin City Bulletin 370
CW DBD
HG
DC
HQ
40.88
44.88
49.75
55.00
60.38
66.94
445
490
542
600
660
730
HD
SIZE
27.44
30.13
33.50
37.00
31.81
35.13
38.69
42.63
47.13
51.94
57.38
63.50
69.69
77.25
300
330
365
402
445
490
542
600
660
730
300
330
365
402
A
DB
DA
HF
38.25
42.19
46.69
51.69
56.81
62.88
25.75
28.38
31.50
34.69
HE
17.25
19.06
21.13
23.31
25.81
28.13
31.81
34.94
39.13
42.63
AH
36.00
39.69
43.94
48.63
53.38
59.13
24.25
26.69
29.63
32.63
HF
23.81
26.06
28.88
31.81
35.19
38.63
42.88
47.31
52.19
57.56
B
CL
DISCH.
HA
CW TAD
HD
HE
G
MOTOR
(ARR. 9 ONLY)
SEE NOTE 3
SIZE
HP
GC
GA. SIDES
GA
HE
SE
N
Twin City Bulletin 370
47.13
51.00
55.50
60.50
HL
31.63
34.75
38.50
42.44
46.88
51.63
57.13
63.13
69.38
76.75
C
31.50 65.69
34.69 72.31
38.44 78.88
42.50 86.25
46.50 94.81
51.63 104.19
21.25
23.31
25.88
28.50
HH
0.56
0.56
0.56
0.81
0.81
0.81
0.81
0.81
0.81
0.81
BH
HD
44.38
48.44
52.31
56.56
62.00
67.69
33.44
35.56
38.38
41.56
HM
26.75
30.00
29.00
32.00
35.38
39.00
43.06
47.69
52.44
58.00
DA
NOTE 4
HH
KWY
SIZE
KS
DX
DISCH.
FLANGE
OUTS.
HSG.
HQ
HC
50.06
54.88
61.31
67.44
74.63
82.13
34.25
37.56
41.13
45.56
HP
26.75
30.00
30.50
32.50
36.25
38.75
42.25
45.00
49.50
54.25
DB
NOTE 4
59.75
65.75
72.25
79.75
HQ
26.75
30.00
29.50
33.00
35.50
39.00
43.50
48.00
52.50
57.00
DC
NOTE 4
CW UBD
H
BA
13.31
14.44
15.81
17.56
19.25
20.94
23.56
25.81
28.75
31.44
20.00
21.69
23.38
26.50
28.75
32.19
34.94
K
28.50
31.00
33.50
37.00
40.00
44.00
49.00
54.00
59.00
64.50
15.50
16.63
18.00
J
26.75
30.00
31.50
35.25
38.50
42.25
46.50
51.25
55.75
61.75
DE
DE
HA
O.D.
INLET
C
NOTE 4 NOTE 4
DD
HG
BASE ANGLES
GB
GA. SCROLL
A
B
J
K
FAN HSG.
CL
M
BH
DIA. BASE
HOLES
AH
DBD ONLY
5.0
5.5
5.5
6.0
6.0
7.0
7.5
5.0
5.0
5.0
KL
30.00
32.75
35.50
39.50
43.25
47.50
52.25
57.50
63.00
69.50
DF
CW BAU
35.50
39.00
41.00
45.50
50.00
54.75
60.25
66.25
73.25
80.75
DG
HF
1.50
1.50
1.50
1.50
1.50
2.00
2.00
2.00
2.50
2.50
DX
DF
HH
HA
26.88
29.50
29.50
30.00
31.63
32.00
36.63
36.38
39.00
42.00
L
286T
324T
324T
326T
364T
364T
404T
404T
405T
405T
FR
ARR. 9
CW BHD
KS
KS
CL I
CL II
0.50x0.25 0.50x0.25
0.50x0.25 0.50x0.25
0.50x0.25 0.63x0.31
0.50x0.25 0.63x0.31
0.63x0.31 0.63x0.31
0.63x0.31 0.75x0.38
0.75x0.38 0.88x0.44
0.75x0.38 0.88x0.44
0.88x0.44 1.0x0.50
0.88x0.44 1.0x0.50
HB
G
15.88
17.38
18.88
20.88
22.88
25.38
27.63
30.63
33.13
37.13
M
41.00
44.00
48.00
52.50
56.50
61.50
67.00
73.00
80.00
88.00
HE
DG
HG
1.13
1.13
1.13
1.38
1.38
1.38
1.88
1.88
2.38
2.38
N
10
10
10
10
10
10
10
10
10
10
SP
CLASS
44.56
48.31
49.69
51.69
55.50
57.56
64.81
66.81
72.88
79.06
P
12
12
12
12
12
12
12
12
12
10
GB
15.81
17.50
19.25
21.25
23.50
25.88
28.63
31.69
34.75
38.50
Q
20.50
22.00
24.00
26.25
28.25
30.75
33.50
36.50
40.00
44.00
GC
ACCESSORIES REQ'D.
CFM
SIZE
S.O. NO.
CERT. BY:
ENG./ARCH.
LOC.
JOB:
SD
CL I
1.937
1.937
1.937
2.187
2.437
2.687
2.937
2.937
3.437
3.437
55.75
60.63
63.38
67.88
72.88
76.63
87.50
91.75
101.25
109.63
H
RPM
DISCH.
BHP
SD
CL II
1.937
2.187
2.437
2.437
2.687
2.937
3.437
3.437
3.937
3.937
23.81
26.25
29.00
32.00
35.38
39.00
43.06
47.69
52.44
58.00
HA
ROT.
HB
5.75
5.75
5.75
5.75
6.25
6.25
6.75
6.75
7.75
8.25
SE
40.31
44.44
48.88
53.81
59.38
65.69
72.38
80.00
88.06
97.31
300
330
365
402
445
490
542
600
660
730
SIZE
33.25
36.56
40.13
44.06
48.56
53.88
59.31
65.44
72.13
79.63
8-14-82
300
330
365
402
445
490
542
600
660
730
SIZE
TS
REVISED 7-15-05
DWG. NO. AC-9238E
DRAWN
UNIT NO.
HC
OV
MTR. LOC.
MINNEAPOLIS, MINNESOTA 55442
TWIN CITY FAN & BLOWER
"BAE" ARR. NO. 1 & ARR. NO. 9 NON-ROTATABLE CL I & II
GA
NOTES:
1. DISCHARGE ANGLES ARE INCLUDED ON ALL
DISCHARGES.
2. "CW" ROTATION IS SHOWN. "CCW" ROTATION IS
SIMILAR BUT OPPOSITE.
3. STANDARD ARR. 9 MOTOR LOCATION IS ON THE
LEFT FOR "CW" ROTATION UNITS, AND ON THE
RIGHT FOR "CCW" ROTATION. DIMENSION "FR"
EQUALS MAX. MOTOR FRAME.
4. FOR FANS WITH INLET BOX AT 90 DEGREES OR
270 DEGREES, USE “BAU” DISCHARGE DIMENSION
“DF” FOR CENTERLINE HEIGHT.
FOUNDATION PLAN
L
K
M
CL
FAN SHAFT
DIMENSIONS ARE NOT TO BE USED FOR CONSTRUCTION. CERTIFIED DRAWINGS AVAILABLE UPON REQUEST.
33.75
37.19
41.19
45.56
49.94
55.38
22.75
25.00
27.75
30.56
HG
2.5x2.5
2.5x2.5
2.5x2.5
3.0x3.0
3.0x3.0
3.0x3.0
3.0x4.0
3.0x4.0
3.5x5.0
3.5x5.0
BA
CW TAU
DD
HB
CW THD
H
O (TA M
NL D
Y)
HL
SD
KL
DIA. SHAFT
Q
HC
P
OUTSIDE
HOUSING
37
85.44
94.13
104.00
HD
74.00
81.56
90.06
807
890
982
SIZE
807
890
982
CW DBD
HP
A
HG
GC
AH
G
69.50
76.63
84.63
HE
53.75
47.06
50.25
DA
HE
NOTE 3
SIZE
DC
HQ
GA. SIDES
GA
HE
HF
77.50
63.63
70.13
B
BA
Twin City Bulletin 370
61.25
67.50
74.50
57.13
62.94
69.44
HH
0.81
0.81
0.81
BH
DD
HB
DA
NOTE 4
HM
113.69 73.00
125.38 80.75
140.06 91.75
HL
103.50 77.75
OUTS.
HSG.
HP
71.50
59.50
65.50
DB
NOTE 4
CW
UBD
H
HQ
76.50
63.00
69.25
DC
NOTE 4
HQ
HC
DD
DE
HA
J
80.00
67.50
73.75
K
K
M
BH
DIA. BASE
HOLES
DBD ONLY
AH
FOUNDATION PLAN
L
FAN HSG.
CL
M
S.O. NO.
SIZE
DISCH
DE
NOTE 4
CW
BAU
34.44
37.69
41.88
K
86.50
8.00
8.00
8.00
KL
92.00
76.50
85.00
DF
HB
1.00x0.50
1.00x0.50
1.25x0.63
KS
CL I
108.25
DF
HH
89.00
97.75
DG
HF
45.00
48.00
51.13
1.25x0.63
53.13
40.88
46.38
M
7
7
L
10
GA
95.50
CW BHD
DG
HG
106.50
122.00
G
HE
1.00x0.50
1.25x0.63
KS
CL II
2.50
2.50
2.50
DX
HA
2.88
2.38
2.38
N
10
7
10
GB
98.88
85.81
92.06
P
53.25
61.00
47.75
GC
H
51.81
42.63
46.94
Q
128.13
140.63
118.63
RPM
ROT.
4.937
3.937
3.937
SD
CL I
70.00
77.75
64.19
HA
BHP
UNIT NO.
MINNEAPOLIS, MINNESOTA 55442
5.437
4.437
4.937
SD
CL II
117.75
130.13
107.50
HB
OV
7-15-05
REVISED
9.00
9.00
9.00
SE
96.50
106.31
87.81
HC
TS
982
807
890
SIZE
890
982
807
SIZE
DWG. NO. AC-9259G
3-11-87
DRAWN
CLASS I & II
TWIN CITY FAN & BLOWER
ARR. NO. 1 SWSI NON-ROTATABLE
ENG./ARCH.
CONT.
LOC.
JOB:
"BAE"
NOTES:
CFM
SP
1. DISCHARGE ANGLES ARE INCLUDED ON ALL
DISCHARGES.
2. "CW" ROTATION IS SHOWN. "CCW" ROTATION IS
ACCESSORIES REQ'D.
SIMILAR BUT OPPOSITE.
3. FRAME SUPPORTS VARY IN CONSTRUCTION BY
SIZE AND BY DISCHARGE POSITION.
4. FOR FANS WITH INLET BOX AT 90 DEGREES OR 270
DEGREES, USE “BAU” DISCHARGE DIMENSION “DF”
FOR CENTERLINE HEIGHT.
72.00
78.25
C
O.D.
INLET
NOTE 4
HG
BASE ANGLES
BA
GA. SCROLL
GB
A
B
J
90.31
87.75 37.81
99.00
96.50 41.06
109.75 106.75 45.75
CW TAU
HH
84.88 64.19
93.38 70.00
C
HD
KWY
SIZE
KS
DISCH.
FLANGE
DX
P
CL
FAN SHAFT
DIMENSIONS ARE NOT TO BE USED FOR CONSTRUCTION. CERTIFIED DRAWINGS AVAILABLE UPON REQUEST.
4.0 x 6.0
HG
N
CW THD
HM
O (TA
NL D
Y)
HL
SD
SE
KL
DIA. SHAFT
Q
HC
3.5 x 5.0
3.5 x 5.0
CW TAD
65.38
72.06
79.56
DB
HB
HF
CL
DISCH.
HA
OUTSIDE
HOUSING
38
GC
HG
G
DC
HP
GA
A
13.00
14.31
15.88
17.44
19.38
21.19
23.56
25.94
28.63
HD
11.19
12.31
13.75
15.06
16.69
18.38
20.44
22.38
24.69
122
135
150
165
182
200
222
245
270
SIZE
122
135
150
165
182
200
222
245
270
DB
HD
AH
G
CL
23.19
10.56
11.63
12.88
14.13
15.69
17.31
19.06
21.00
HE
Twin City Bulletin 370
SD
x
x
x
x
x
x
x
x
x
20.44
9.31
10.25
11.38
12.50
13.81
15.19
16.81
18.50
1.5
1.5
1.5
2.0
2.0
2.0
2.0
2.0
2.0
BA
HG
1.5
1.5
1.5
1.5
1.5
1.5
2.0
2.0
2.0
BH
HH
0.44
0.44
0.44
0.44
0.44
0.56
0.56
0.56
0.56
19.06
G
N
C
HH
42.38
22.50
24.06
26.00
27.88
30.44
32.75
36.06
38.88
HL
BA
B
J
A
DA
29.88
17.88
18.75
20.00
21.06
22.50
23.94
26.25
27.81
HM
9.75
10.75
11.94
13.13
14.50
15.81
17.69
19.50
21.44
H
30.56
14.44
15.75
17.31
19.38
21.31
23.13
25.50
27.88
HP
15.25
16.00
16.75
17.50
18.50
19.50
21.00
22.00
23.50
DB
GC
HC
BASE ANGLES
GB
KWY
SIZE
KS
GA. SCROLL
13.25
14.56
16.19
17.75
19.50
21.38
23.75
26.06
28.50
KL
GC
8.69
9.56
10.63
11.69
12.88
14.13
15.69
17.25
CW TAU
DD
HB
HD
CW THD
DIA. SHAFT
Q
HC
DX
DISCH.
FLANGE
OUTS.
HSG.
P
G
DD
5.75
6.31
6.88
7.75
8.44
9.13
10.00
10.88
11.81
13.31
14.25
K
11.00
12.00
13.25
14.50
15.75
17.25
19.25
21.25
23.50
7.44
8.00
9.06
9.69
10.88
11.56
12.44
J
DE
HA
CW UBD
10.25
11.25
12.25
13.50
14.75
16.25
18.00
20.00
22.00
DC
HG
O.D.
INLET
C
M
AH
DBD ONLY
FOUNDATION PLAN
M
BH
DIA. BASE
HOLES
FAN HSG.
CL
DE
4.50
4.50
2.50
2.50
3.00
3.00
3.50
3.50
4.00
KL
11.50
12.75
14.00
15.25
16.75
18.25
20.50
22.50
24.75
HB
G
DF
HH
15.00
16.25
18.00
19.50
21.50
23.50
26.00
28.25
31.00
DG
0.38 x 0.19
0.38 x 0.19
DX
1.00
1.00
1.00
1.00
1.25
1.25
1.25
1.25
1.50
N
0.63
0.63
0.63
0.88
0.88
0.88
0.88
0.88
0.88
6.75
7.38
8.25
8.75
9.63
10.63
11.75
12.88
14.13
14
14
14
14
14
14
14
14
14
GB
CW BHD
DG
HG
M
14
14
14
14
12
12
12
12
12
GA
HE
GC
GD
19.75
21.00
22.75
24.25
26.00
28.00
31.25
33.50
36.00
G
HA
KS
CL II
0.25 x 0.13
0.25 x 0.13
0.25 x 0.13
0.25 x 0.13
0.38 x 0.19
0.38 x 0.19
0.38 x 0.19
0.38 x 0.19
0.38 x 0.19
CW BAU
KS
CL I
0.25 x 0.13
0.25 x 0.13
0.25 x 0.13
0.25 x 0.13
0.25 x 0.13
0.38 x 0.19
0.38 x 0.19
12.25
13.25
14.75
16.25
17.75
19.25
22.00
24.00
26.25
DF
GC
HF
NOTES:
1. DISCHARGE ANGLES ARE INCLUDED ON ALL
DISCHARGES.
2. INLET BEARING BAR SUPPORT IS REMOVABLE.
3. "CW" ROTATION IS SHOWN. "CCW" ROTATION IS
SIMILAR BUT OPPOSITE.
4. BEARING BAR SUPPORTS MAY EXTEND BEYOND
BASE ANGLES. SEE DRAWING AC1000851 FOR
DIMENSIONS IF SPACE LIMITATIONS ARE REQUIRED
FOR MOUNTING FAN.
K
K
JOB:
SP
CLASS
P
CL I
10.00
10.56
11.63
12.25
13.81
15.31
16.69
18.06
19.00
9.88
10.50
11.38
12.13
13.00
14.00
15.63
16.75
18.00
GC
P
CL II
10.00
10.56
12.00
12.63
14.63
15.31
16.69
18.44
19.38
18.50
19.75
21.50
24.25
26.00
28.00
31.25
33.50
36.00
GD
H
6.44
7.13
7.88
8.69
9.63
10.56
11.75
12.94
14.25
Q
SD
CL I
1.000
1.000
1.000
1.000
1.187
1.437
1.437
1.437
1.437
BHP
SD
CLII
1.000
1.000
1.187
1.187
1.437
1.437
1.437
1.687
1.687
16.75
18.38
20.31
22.25
24.81
27.00
30.00
33.00
36.44
HB
ROT.
9.75
10.75
11.94
13.13
14.50
15.81
17.69
19.50
21.44
HA
RPM
DISCH.
12.75
13.88
15.00
17.25
18.63
20.00
21.75
23.50
25.38
ACCESSORIES REQ'D.
CFM
SIZE
S.O. NO.
CERT. BY.
ENG./ARCH.
LOC.
MINNEAPOLIS, MINNESOTA 55442
122
135
150
165
182
200
222
245
270
SIZE
13.94
15.25
16.81
18.38
20.56
22.38
24.75
27.13
30.06
HC
MTR. HP.
OV
10-20-83
122
135
150
165
182
200
222
245
270
SIZE
MTR. LOC.
TS
UNIT NO.
REVISED 7-15-05
DWG. NO. AC-9834G
DRAWN
SWSI NON-ROTATABLE CLASS I & II
TWIN CITY FAN & BLOWER
"BAE" ARR. NO. 3
DIMENSIONS ARE NOT TO BE USED FOR CONSTRUCTION. CERTIFIED DRAWINGS AVAILABLE UPON REQUEST.
21.81
9.94
10.94
12.13
13.31
14.75
16.25
17.94
19.75
HF
9.75
10.81
11.94
13.19
14.56
15.94
17.69
19.44
21.38
B
CW TAD
H
O (TA M
NL D
Y)
HL
DISCH.
7.06
7.75
8.44
9.75
10.81
11.63
12.88
14.13
15.56
GC
HF
GD
SIZE
CW DBD
DA
HE
GC
GA. SIDES
HA
OUTSIDE
HOUSING
HE
CL
FAN SHAFT
39
CW DBD
HG
DC
HQ
HP
HF
G
A
31.81
35.13
38.69
42.63
47.13
51.94
57.38
63.50
69.69
77.25
HD
27.44
30.13
33.50
37.00
40.88
44.88
49.75
55.00
60.38
66.94
300
330
365
402
445
490
542
600
660
730
SIZE
300
330
365
402
445
490
542
600
660
730
AH
62.88
51.69
56.81
38.25
42.19
46.69
25.75
28.38
31.50
34.69
HE
HA
59.13
48.63
53.38
36.00
39.69
43.94
24.25
26.69
29.63
32.63
HF
23.81
26.06
28.88
31.81
35.19
38.63
42.88
47.31
52.19
57.56
B
H
O (TA M
NL D
Y)
HL
CL
DISCH.
17.25
19.06
21.13
23.31
25.81
28.13
31.81
34.94
39.13
42.63
CW TAD
DB
HD
SIZE
DA
HE
GC
GA. SIDES
GA
HE
Twin City Bulletin 370
BH
C
86.25
94.81
65.59
72.31
78.88
47.13
51.00
55.50
60.50
HL
31.63
34.75
38.50
42.44
46.88
51.63
57.13
63.13
69.38
76.75
51.63 104.19
42.50
46.50
31.50
34.69
38.44
21.25
23.31
25.88
28.50
HH
0.56
0.56
0.56
0.81
0.81
0.81
0.81
0.81
0.81
0.81
HH
DA
67.69
56.56
62.00
44.38
48.44
52.31
33.44
35.56
38.38
41.56
HM
23.81
26.25
29.00
32.00
35.38
39.00
43.06
47.69
52.44
58.00
BA
A
HQ
HC
82.13
67.44
74.63
50.06
54.88
61.31
34.25
37.56
41.13
45.56
HP
26.00
27.75
30.50
32.50
36.25
38.75
42.25
45.00
49.50
54.25
DB
CW UBD
H
DC
79.75
65.75
72.25
59.75
HQ
DE
HA
34.88
28.75
32.19
22.69
24.44
26.56
16.00
17.13
19.06
20.50
J
26.00
28.50
31.50
35.25
38.50
42.25
46.50
51.25
55.75
61.75
DD
C
O.D.
INLET
HG
24.50
27.00
29.50
33.00
35.50
39.00
43.50
48.00
52.50
57.00
BASE ANGLES
GB
B
GA. SCROLL
KWY
SIZE
KS
OUTS.
HSG.
J
DE
28.50
31.00
33.50
37.00
40.00
44.00
49.00
54.00
59.00
64.50
31.44
25.81
28.75
19.25
20.94
23.56
13.31
14.44
15.81
17.56
7.50
6.00
7.00
5.50
5.50
6.00
5.00
5.00
5.00
5.00
KL
29.50
32.25
35.50
39.50
43.25
47.50
52.25
57.50
63.00
69.50
DF
HB
CW BAU
K
M
CL
FAN HSG.
AH
DBD ONLY
FOUNDATION PLAN
M
DIA. BASE
HOLES
BH
0.88x0.44
0.75x0.38
0.75x0.38
1.00x0.50
0.88x0.44
1.00x0.50
17.38
18.88
20.88
22.88
25.38
27.63
0.50x0.25
0.50x0.25
0.63x0.31
15.88
0.50x0.25
0.63x0.31
0.63x0.31
0.63x0.31
0.63x0.31
0.75x0.38
37.13
30.63
33.13
M
KS
CL II
0.50x0.25
G
41.00
44.00
48.00
52.50
56.50
61.50
67.00
73.00
80.00
88.00
KS
CL I
0.38x.019
0.38x.019
0.50x0.25
0.50x0.25
DX
CW BHD
HE
1.50
1.50
1.50
1.50
1.50
2.00
2.00
2.00
2.50
2.50
DF
HH
HA
34.25
37.25
41.00
45.50
50.00
54.75
60.25
66.25
73.25
80.75
DG
HF
2.38
1.88
2.38
1.13
1.13
1.38
1.38
1.38
1.88
1.13
N
10
10
10
10
10
10
10
10
10
10
GA
DG
HG
NOTES:
1. DISCHARGE ANGLES ARE INCLUDED ON ALL
DISCHARGES.
2. INLET BEARING BAR SUPPORT IS REMOVABLE.
3. "CW" ROTATION IS SHOWN. "CCW" ROTATION IS
SIMILAR BUT OPPOSITE.
4. FRAME SUPPORTS VARY IN CONSTRUCTION BY
SIZE AND BY DISCHARGE POSITION.
5. BEARING BAR SUPPORTS MAY EXTEND BEYOND
BASE ANGLES. SEE DRAWING AC1000851 FOR
DIMENSIONS IF SPACE LIMITATIONS ARE
REQUIRED FOR MOUNTING FAN.
K
K
CL
FAN SHAFT
SP
CLASS
43.50
35.50
39.88
22.25
23.75
25.25
27.44
30.25
33.38
P
CL I
21.13
12
12
12
12
12
12
12
12
12
10
GB
44.00
36.88
40.81
22.88
24.63
26.13
29.19
30.88
33.75
P
CL II
21.25
20.50
22.00
24.00
26.25
28.25
30.75
33.50
36.50
40.00
44.00
GC
H
38.50
31.69
34.75
15.81
17.50
19.25
21.25
23.50
25.88
28.63
Q
28.88
31.13
33.88
37.88
41.25
44.63
50.88
55.38
62.25
67.63
ACCESSORIES REQ'D.
CFM
SIZE
S.O. NO.
CERT. BY.
HA
ROT.
3.437
2.937
2.937
1.687
1.687
1.937
1.937
1.937
2.187
2.437
SD
CL I
23.81
26.25
29.00
32.00
35.38
39.00
43.06
47.69
52.44
58.00
RPM
DISCH.
3.937
3.437
3.937
1.937
2.187
2.437
2.437
2.687
2.687
2.937
SD
CL II
40.31
44.44
48.88
53.81
59.38
65.69
72.38
80.00
88.06
97.31
HB
BHP
MINNEAPOLIS, MINNESOTA 55442
NON-ROTATABLE
OV
730
600
660
300
330
365
402
445
490
542
SIZE
33.25
36.56
40.13
44.06
48.56
53.88
59.31
65.44
72.13
79.63
HC
MTR. HP
8-13-82
300
330
365
402
445
490
542
600
660
730
SIZE
MTR. LOC.
TS
UNIT NO.
REVISED 7-15-05
DWG. NO. AC-9241F
DRAWN
CLASS I & II
TWIN CITY FAN & BLOWER
ARR. NO. 3 SWSI
ENG./ARCH.
LOC.
JOB:
"BAE"
DIMENSIONS ARE NOT TO BE USED FOR CONSTRUCTION. CERTIFIED DRAWINGS AVAILABLE UPON REQUEST.
55.38
45.56
49.94
33.75
37.19
41.19
22.75
25.00
27.75
30.56
HG
2.5x2.5
2.5x2.5
2.5x2.5
3.0x3.0
3.0x3.0
3.0x3.0
3.0x4.0
3.0x4.0
3.5x5.0
3.5x5.0
BA
CW TAU
DD
HB
N
KL
HD
CW THD
DIA. SHAFT
SD
Q
HC
DX
DISCH.
FLANGE
P
OUTSIDE
HOUSING
40
CW DBD
HG
DC
HQ
GA
HP
HF
G
A
85.44
94.13
104.00
HD
74.00
81.56
90.06
807
890
982
SIZE
807
890
982
69.50
76.63
84.63
HE
47.06
50.25
53.75
AH
CW TAD
DB
SIZE
DA
HE
HD
NOTE 4
GC
GA. SIDES
B
65.38
72.06
79.56
HF
63.63
70.13
77.50
BA
57.13
62.94
69.44
HH
0.81
0.81
0.81
BH
CW TAU
DD
HB
HH
DA
HM
113.69 73.00
125.38 80.75
140.06 91.75
HL
84.88 64.19
93.38 70.00
103.50 77.75
HD
C
N
GB
BA
B
J
A
DB
DC
HQ
J
67.50
73.75
80.00
DD
DE
HA
O.D.
INLET
C
90.31
87.75 38.88
99.00
96.50 43.19
109.75 106.75 47.88
HP
59.50
65.50
71.50
HG
63.00
69.25
76.50
HQ
HC
CW UBD
H
BASE ANGLES
GA.
SCROLL
KWY
SIZE
KS
OUTS.
HSG.
P
HB
72.00
78.25
86.50
DE
34.44
37.69
41.88
8.0
8.0
8.0
KL
76.50
85.00
92.00
DF
CW BAU
K
M
AH
DBD ONLY
FOUNDATION PLAN
M
BH
DIA. BASE
HOLES
CL
FAN HSG.
DF
HH
KS
CL I
1.00x0.50
1.00x0.50
1.25x0.63
89.00
97.81
108.25
DG
HF
DX
KS
CL II
1.00x0.50
1.25x0.63
1.25x0.63
2.5
2.5
2.5
CW BHD
G
HE
40.88
46.38
53.13
M
95.50
106.50
122.00
HA
2.38
2.38
2.88
N
10
7
7
GA
DG
HG
NOTES:
1. DISCHARGE ANGLES ARE INCLUDED ON ALL
DISCHARGES.
2. INLET BEARING BAR SUPPORT IS REMOVABLE.
3. "CW" ROTATION IS SHOWN. "CCW" ROTATION IS
SIMILAR BUT OPPOSITE.
4. FRAME SUPPORTS VARY IN CONSTRUCTION BY
SIZE AND BY DISCHARGE POSITION.
5. BEARING BAR SUPPORTS MAY EXTEND BEYOND
BASE ANGLES. SEE DRAWING AC1000851 FOR
DIMENSIONS IF SPACE LIMITATIONS ARE
REQUIRED FOR MOUNTING FAN.
K
K
JOB:
SP
CLASS
P
CL I
47.63
50.75
56.88
10
10
7
GB
P
CL II
49.56
53.44
57.88
47.75
53.25
61.00
GC
H
42.63
46.94
51.81
Q
HA
ROT.
SD
CL I
3.937
3.937
4.937
64.19
70.00
77.75
RPM
DISCH.
73.63
80.13
89.50
ACCESSORIES REQ'D.
CFM
SIZE
S.O. NO.
CERT. BY.
ENG./ARCH.
LOC.
SD
CL II
4.437
4.937
5.437
107.50
117.75
130.13
HB
BHP
OV
807
890
982
SIZE
87.81
96.50
106.31
HC
MTR. HP
MINNEAPOLIS, MINNESOTA 55442
8-16-82
807
890
982
SIZE
TS
UNIT NO.
REVISED 7-15-05
DWG. NO. AC-9257E
DRAWN
MTR. LOC.
TWIN CITY FAN & BLOWER
"BAE" ARR. NO. 3 SWSI NON-ROTATABLE CLASS I & II
DIMENSIONS ARE NOT TO BE USED FOR CONSTRUCTION. CERTIFIED DRAWINGS AVAILABLE UPON REQUEST.
61.25
67.50
74.50
HG
KL
DIA. SHAFT
SD
DX
DISCH.
FLANGE
CW THD
Q
HC
3.5 x 5.0
3.5 x 5.0
4.0 x 6.0
H
O (TA M
NL D
Y)
HL
CL
DISCH.
HA
OUTSIDE
HOUSING
HE
FAN SHAFT
CL
41
Twin City Bulletin 370
HG
DC
GA
G
HP
HD
DB
DA
HF
HE
GD
A
13.13
14.44
16.00
17.56
19.50
21.31
23.69
26.19
28.88
32.00
35.31
HB
17.00
18.63
20.56
22.50
24.81
27.06
30.06
33.25
36.50
40.38
44.44
SIZE
122
135
150
165
182
200
222
245
270
300
330
G
DISCH.
122
135
150
165
182
200
222
245
270
300
330
CL
SIZE
CW DBD
GC
GC
GA. SIDES
HA
AH
14.25
15.56
17.13
18.69
20.63
22.44
24.81
27.50
30.19
33.31
36.63
HC
7.63
8.31
9.00
9.81
10.88
11.69
13.44
14.63
16.19
17.81
19.63
Twin City Bulletin 370
x
x
x
x
x
x
x
x
x
x
x
BA
2.0
2.0
2.0
2.0
2.0
2.0
2.5
2.5
2.5
3.0
3.0
10.63
11.69
12.94
14.19
15.75
17.38
19.13
21.13
23.31
25.81
28.44
HE
1.5
1.5
1.5
1.5
2.0
2.0
2.5
2.5
2.5
3.0
3.0
CW TAU
HF
0.44
0.44
0.44
0.44
0.56
0.56
0.56
0.56
0.56
0.81
0.81
BH
G
10.00
11.00
12.19
13.38
14.81
16.31
18.00
19.88
21.94
24.31
26.75
HD
C
GC
HH
9.38
10.31
11.44
12.56
13.88
15.25
16.88
18.63
20.56
22.81
25.06
HG
13.25
14.56
16.19
17.75
19.50
21.38
23.75
26.06
28.50
31.63
34.75
KWY
SIZE
KS
DX
DISCH.
FLANGE
OUTS.
HSG.
8.75
9.63
10.69
11.75
12.94
14.19
15.75
17.38
19.19
21.13
23.38
HH
22.94
24.50
26.50
28.31
31.06
33.31
36.69
38.88
42.06
46.75
50.63
HL
15.25
16.00
16.75
17.50
18.50
19.50
21.00
22.00
23.50
26.00
27.75
DB
9.75
10.75
11.94
13.13
14.50
15.81
17.69
19.50
21.44
23.81
26.25
NOTE 3
G
DA
HC
N
NOTE 3
CW UBD
H
BA
18.19
19.06
20.31
21.38
23.31
24.69
27.06
27.50
29.25
32.81
34.94
HM
10.25
11.25
12.25
13.50
14.75
16.25
18.00
20.00
22.00
24.50
27.00
DC
GC
DE
HA
HG
O.D.
INLET
C
L
FAN HSG.
CL
M
BH
DIA. BASE
HOLES
AH
DBD ONLY
FOUNDATION PLAN
M
DD
DE
HB
15.00
16.31
17.88
19.44
21.38
23.19
26.06
28.50
31.19
34.81
38.13
HP
11.00
12.00
13.25
14.50
15.75
17.25
19.25
21.25
23.50
26.00
28.50
7.94
8.50
9.06
9.69
10.31
11.00
12.38
13.31
14.31
16.00
17.13
J
11.50
12.75
14.00
15.25
16.75
18.25
20.50
22.50
24.75
27.50
30.00
DF
6.06
6.63
7.19
7.81
8.44
9.13
10.25
11.19
12.19
13.63
14.75
K
GC
DF
HH
3.00
3.00
3.50
3.50
4.50
4.50
5.00
6.00
6.00
7.00
7.00
KL
15.50
16.75
18.50
19.50
22.00
24.00
26.50
28.75
31.50
34.75
37.75
DG
CW BAU
12.25
13.25
14.75
16.25
17.75
19.25
22.00
24.00
26.25
29.50
32.25
G
HF
DX
x
x
x
x
x
x
x
x
x
x
x
KS
1.25
1.25
1.25
1.25
1.25
1.25
1.25
1.50
1.50
1.50
1.50
0.38
0.38
0.38
0.38
0.38
0.50
0.50
0.50
0.50
0.63
0.63
HA
0.19
0.19
0.19
0.19
0.19
0.25
0.25
0.25
0.25
0.31
0.31
L
7.50
8.00
9.50
9.50
10.50
11.50
13.75
15.25
17.25
19.00
21.00
10
10
7
7
7
7
29.00
32.25
34.50
37.00
42.00
45.00
GA
10
10
10
10
10
G
SP
10
10
7
7
7
7
10
10
10
10
10
GB
0.88
0.88
0.88
0.88
0.88
0.88
1.13
1.13
1.13
1.38
1.38
N
14.50
16.13
17.25
18.50
21.00
22.50
9.88
10.50
11.38
12.13
13.50
GC
18.94
20.00
22.56
23.19
25.81
27.50
31.38
34.81
37.81
42.25
45.38
P
29.00
32.25
34.50
37.00
42.00
45.00
18.63
19.88
21.63
23.13
27.00
GD
ACCESSORIES REQ'D.
CFM
CLASS
S.O. NO.
CERT. BY.
6.44
7.13
7.88
8.69
9.63
10.56
11.75
12.94
14.25
15.81
17.50
Q
32.50
37.25
40.63
44.63
49.50
53.75
22.38
24.00
26.63
27.88
30.13
H
RPM
DISCH.
1.437
1.437
1.687
1.687
1.687
1.937
1.937
2.187
2.187
2.437
2.687
SD
15.81
17.69
19.50
21.44
23.81
26.25
9.75
10.75
11.94
13.13
14.50
HA
ROT.
3.50
3.50
4.00
4.00
5.00
5.00
5.50
6.50
6.50
7.75
7.75
SE
200
222
245
270
300
330
122
135
150
165
182
OV
122
135
150
165
182
200
222
245
270
300
330
SIZE
MTR. HP
SIZE
BHP
MINNEAPOLIS, MINNESOTA 55442
8-16-82
MTR. LOC.
TS
UNIT NO.
REVISED 7-15-05
DWG. NO. AC-9244D
DRAWN
SWSI NON-ROTATABLE CLASS III
TWIN CITY FAN & BLOWER
ARR. NO. 1
ENG./ARCH.
LOC.
JOB:
"BAE"
SIZE
6.50
7.13
8.00
8.75
9.63
10.63
11.50
12.63
13.88
15.63
17.13
M
CW BHD
GC
19.75
21.00
22.75
24.25
27.00
GD
DG
HG
HE
NOTES:
1. DISCHARGE ANGLES ARE INCLUDED ON ALL
DISCHARGES.
2. "CW" ROTATION IS SHOWN. "CCW" ROTATION IS
SIMILAR BUT OPPOSITE.
3. FOR FANS SIZE 182-330 (EXCEPT TAD 182-200)
WITH INLET BOX AT 90 DEGREES OR 270 DEGREES,
USE “BAU” DISCHARGE DIMENSION “DF” FOR
CENTERLINE HEIGHT.
K
K
NOTE 3 NOTE 3 NOTE 3
BASE ANGLES
GA. SCROLL
GB
A
B
J
DIMENSIONS ARE NOT TO BE USED FOR CONSTRUCTION. CERTIFIED DRAWINGS AVAILABLE UPON REQUEST.
11.25
12.38
13.81
15.13
16.75
18.38
20.50
22.50
24.81
27.50
30.19
HD
9.88
10.94
12.06
13.31
14.63
16.00
17.75
19.63
21.56
23.94
26.19
B
CW TAD
GC
DD
HB
CW THD
H
O (TA M
NL D
Y)
HL
SD
SE
KL
DIA. SHAFT
Q
HC
P
OUTSIDE
HOUSING
HE
CL
FAN SHAFT
42
CW DBD
HG
DC
HQ
HP
A
38.88
42.81
47.31
52.13
57.56
63.69
69.88
77.38
85.56
94.25
HC
40.19
44.63
49.13
53.94
59.88
66.00
72.19
79.69
87.88
96.56
SIZE
365
402
445
490
542
600
660
730
807
890
CW TAD
DB
HD
HF
365
402
445
490
542
600
660
730
807
890
DA
HE
G
HA
74.13
81.63
33.63
37.06
41.00
44.94
49.88
55.06
60.50
67.00
HD
21.69
24.38
26.88
29.19
32.88
36.00
40.19
43.69
48.13
51.31
AH
CL
DISCH.
SIZE
GC
GA. SIDES
GA
HE
B
69.56
76.69
31.56
34.75
38.31
42.25
46.75
51.75
56.88
62.94
HE
Twin City Bulletin 370
x
x
x
x
x
x
x
x
x
x
BA
BH
55.44
61.31
67.56
59.19
65.44
72.13
HG
0.81
0.81
0.81
0.81
0.81
0.81
0.81
0.81
0.81
0.81
27.81
30.63
33.81
37.25
41.25
45.63
50.00
3.0
4.0
4.0
4.0
5.0
5.0
6.0
6.0
6.0
6.0
29.69
32.69
36.06
39.75
44.00
48.69
53.44
HF
3.0
3.0
3.0
3.0
3.5
3.5
4.0
4.0
4.0
4.0
HD
DB
55.13
60.38
66.56
72.44
79.75
87.56
94.94
HL
67.75
73.75
81.50
37.75
40.75
44.94
48.50
52.88
57.81
62.06
HM
29.25
31.75
36.25
38.75
42.25
45.00
49.50
54.25
59.50
65.50
NOTE 3
29.00
32.00
35.38
39.00
43.06
47.69
52.44
58.00
64.19
70.00
DA
CW UBD
HQ
HC
HQ
31.50
35.25
38.50
42.25
46.50
51.25
55.75
61.75
67.50
73.75
83.19 79.75
91.38 88.38
100.06 97.00
K
K
L
M
BH
DIA. BASE
HOLES
DBD ONLY
AH
FOUNDATION PLAN
FAN HSG.
CL
M
DE
CW BAU
HB
35.88
38.88
42.06
18.50
21.00
22.69
24.38
27.50
29.75
33.19
J
33.50
37.00
40.00
44.00
49.00
54.00
59.00
64.50
72.00
78.25
DF
32.00
35.00
38.19
16.13
18.13
19.81
21.50
24.13
26.38
29.31
K
35.50
39.50
43.25
47.50
52.25
57.50
63.00
69.50
76.50
85.00
DG
DF
HH
10.50
10.50
11.00
7.00
8.00
8.00
9.00
9.00
9.50
10.00
KL
41.50
45.50
50.00
54.75
60.75
66.75
73.75
81.25
89.50
98.25
HF
x
x
x
x
x
x
x
x
x
x
0.31
0.38
0.44
0.44
0.50
0.50
0.50
0.63
0.63
0.63
1.5
2.0
2.0
2.0
2.5
2.5
2.5
2.5
2.5
2.5
KS
x
x
x
x
x
x
x
x
x
x
DX
0.63
0.75
0.88
0.88
1.00
1.00
1.00
1.25
1.25
1.25
1.5
2.0
2.0
2.0
2.5
2.5
2.5
2.5
2.5
2.5
CW BHD
HA
G
22.50
24.00
27.00
29.00
29.50
32.50
35.00
38.00
41.00
44.00
L
49.00
52.50
56.50
61.50
67.00
74.00
80.00
88.00
96.50
107.50
M
7
7
7
7
7
7
7
7
7
7
GA
18.63
20.38
22.38
24.88
27.13
30.13
32.63
36.63
40.63
45.88
DG
HG
HE
NOTES:
1. DISCHARGE ANGLES ARE INCLUDED ON ALL
DISCHARGES.
2. "CW" ROTATION IS SHOWN. "CCW" ROTATION IS
SIMILAR BUT OPPOSITE.
3. FOR FANS WITH INLET BOX AT 90 DEGREES OR
270 DEGREES, USE “BAU” DISCHARGE DIMENSION
“DF” FOR CENTERLINE HEIGHT.
NOTE 3 NOTE 3
DD
DE
HA
HG
O.D.
INLET
C
41.69
46.63
51.13
55.94
62.38 59.75
68.50 66.25
75.69 72.38
HP
29.50
33.00
35.50
39.00
43.50
48.00
52.50
57.00
63.00
69.25
NOTE 3
DC
N
BASE ANGLES
BA
GB
GA. SCROLL
A
B
NOTE 3
HH
H
51.69 104.25
57.19 114.31
63.00 125.94
25.94
28.56
31.56
34.75
38.50
42.56
46.56
HH
38.50
42.44
46.88
51.63
57.13
63.13
69.38
76.75
84.88
93.38
C
KWY
SIZE
KS
DX
DISCH.
FLANGE
OUTS.
HSG.
J
CL
FAN SHAFT
SP
CLASS
1.38
1.88
1.88
1.88
2.38
2.38
2.88
2.88
2.88
2.88
N
7
7
7
7
7
7
7
7
7
7
GB
48.25
52.75
57.69
62.38
65.50
71.25
77.19
83.38
89.38
96.06
P
24.50
26.25
28.25
30.75
33.50
37.00
40.00
44.00
48.25
53.75
GC
ACCESSORIES REQ'D.
CFM
SIZE
S.O. NO.
CERT. BY.
19.25
21.25
23.50
25.88
28.63
31.69
34.75
38.50
42.63
46.94
Q
58.00
64.00
70.38
75.75
82.00
89.50
98.38
106.75
115.75
125.13
H
RPM
DISCH.
2.687
2.937
3.437
3.437
3.937
4.437
4.437
4.937
4.937
5.437
SD
29.00
32.00
35.38
39.00
43.06
47.69
52.44
58.00
64.19
70.00
HA
ROT.
HB
7.75
8.75
9.00
10.00
10.00
10.50
11.00
11.50
11.50
12.00
SE
48.94
54.19
59.75
65.69
72.81
80.38
88.13
97.38
107.50
117.75
BHP
MTR. HP
MINNEAPOLIS, MINNESOTA 55442
MTR. LOC.
365
402
445
490
542
600
660
730
807
890
SIZE
365
402
445
490
542
600
660
730
807
890
SIZE
OV
8-16-82
TS
UNIT NO.
REVISED 7-15-05
DWG. NO. AC-9245E
DRAWN
SWSI NON-ROTATABLE CLASS III
TWIN CITY FAN & BLOWER
ARR. NO. 1
ENG./ARCH.
LOC.
JOB:
"BAE"
DIMENSIONS ARE NOT TO BE USED FOR CONSTRUCTION. CERTIFIED DRAWINGS AVAILABLE UPON REQUEST.
29.00
31.94
35.31
38.75
43.00
47.44
52.31
57.69
63.75
70.13
CW TAU
DD
HB
CW THD
H
O (TA M
NL D
Y)
HL
SD
SE
KL
DIA. SHAFT
Q
HC
P
OUTSIDE
HOUSING
43
CE
DC
GA
GA. SIDES
GC
HE
CJ
23.56
25.94
28.63
GD
18.50
19.75
21.50
24.25
26.00
28.00
31.25
33.50
222
245
270
SIZE
122
135
150
165
182
200
222
245
36.00
21.19
200
270
19.38
182
21.44 1.5 x 1.5
15.88
17.44
150
165
19.44 1.5 x 1.5
14.31
135
Twin City Bulletin 370
23.19
21.00
19.06
17.31
15.69
14.13
12.88
11.63
10.56
HE
20.44
18.50
16.81
15.19
13.81
12.50
11.38
10.25
9.31
HG
0.56
0.56
0.56
0.56
0.44
0.44
0.44
0.44
0.44
BH
CE
20.94
19.00
17.19
15.31
14.00
12.63
11.44
10.25
9.25
HJ
50.56
45.88
41.50
37.38
34.06
30.88
28.06
25.50
23.19
CW UBD
28.56
25.88
23.50
21.13
19.31
17.38
15.81
14.25
12.94
HN
44.13
40.00
36.25
32.62
29.69
26.76
24.32
21.88
19.81
H
23.50
21.81
19.56
17.78
16.63
15.44
14.38
12.44
24.31
22.31
20.63
18.56
16.75
15.56
14.38
13.38
12.38
J
CL II
J
CL I
11.44
54.75
50.75
46.88
42.12
38.50
35.62
33.13
30.63
28.63
53.00
49.62
44.62
40.63
38.13
35.25
33.13
28.69
26.69
CG
CL II
CG
CM
CL I
DE
HJ
(NOTE 4)
BA
OUTSIDE
BHOUSING
J
BASE ANGLES
CG
A
HG
CF
G
CK
GC
HN
N
GA. SCROLL
GB
KS
KWY SIZE
P
C
L
FAN SHAFT
BH
DIA. BASE
HOLES
C
L
FAN HSG.
K
CJ
20.25
18.56
16.94
15.38
14.13
12.94
11.63
10.63
9.63
K
51.44
46.75
42.81
38.69
35.31
32.00
29.38
26.50
24.31
CK
CM
DC
CL II
KS
22.00
20.00
18.00
16.25
14.75
13.50
12.25
11.25
10.25
DE
5.00
5.00
.50 x .25 .63 x .31 14.13
.50 x .25 .63 x .31 12.88
.38 x .19 .50 x .25 10.63
.50 x .25 .63 x .31 11.75
9.63
8.75
8.25
7.38
4.00
.38 x .19 .50 x .25
.38 x .19 .50 x .25
.38 x .19 .38 x .19
.25 x .13 .38 x .19
6.75
M
24.75
22.50
20.50
18.25
16.75
15.25
14.00
12.75
11.50
.25 x .13 .38 x .19
CL I
KS
45.69
41.50
37.69
33.56
30.75
27.88
25.44
23.00
20.75
4.50
4.00
3.50
3.50
3.00
3.00
KL
49.00
44.38
40.31
36.31
33.13
29.88
27.19
24.50
22.25
DG
0.88
0.88
0.88
0.88
0.88
0.88
0.63
0.63
0.63
N
31.00
28.25
26.00
23.50
21.50
19.50
18.00
16.25
15.00
SP
DISCH.
14
14
14
12
12
12
12
12
21.00
22.75
24.25
26.00
28.00
31.25
33.50
36.00
29.50
27.81
25.06
22.75
21.50
19.81
18.75
16.25
15.25
CL I
30.44
28.44
26.25
23.56
21.75
20.06
18.75
17.25
16.25
CL II
P
14
P
GA
G
19.75
14.25
12.94
11.75
10.56
9.63
8.69
7.88
7.13
6.44
Q
14
14
14
14
14
14
14
14
14
GB
ACCESSORIES REQ'D.
CFM
SIZE
S.O. NO.
CERT. BY:
2.187
2.187
1.937
1.687
1.687
1.437
1.437
1.187
1.187
CL I
SD
18.00
16.75
15.63
14.00
13.00
12.13
11.38
10.50
9.88
GC
RPM
ROT.
2.687
2.437
2.437
2.187
1.937
1.937
1.687
1.687
1.437
CL II
SD
270
245
222
200
182
165
150
135
122
SIZE
270
245
222
200
182
165
150
135
122
SIZE
BHP
UNIT NO.
MINNEAPOLIS, MINNESOTA
OV
CLASS I & II
TWIN CITY FAN & BLOWER
ARR. 3 DWDI NON-ROTATABLE
ENG./ARCH.
LOC.
JOB:
"BAE”
NOTES:
1. INLET BEARING BAR SUPPORTS ARE REMOVABLE.
2. "CW" ROTATION IS SHOWN. "CCW" ROTATION IS
SIMILAR BUT OPPOSITE.
3. FOR OPTIONAL FLANGED OUTLET AND DOWNBLAST
DISCHARGE SEE DWG. AC14895.
4. BEARING BAR SUPPORTS MAY EXTEND BEYOND BASE
ANGLES. SEE DWG. AC1000648 FOR DIMENSIONS IF
SPACE LIMITATIONS ARE REQUIRED FOR MOUNTING FAN.
FOUNDATION PLAN
M
M
K
DIMENSIONS ARE NOT TO BE USED FOR CONSTRUCTION. CERTIFIED DRAWINGS AVAILABLE UPON REQUEST.
42.25
38.88
35.63
32.50
30.00
27.63
24.50
22.50
20.50
H
38.25 2.0 x 2.0
34.81 2.0 x 2.0
31.63 2.0 x 2.0
28.50 1.5 x 2.0
26.00 1.5 x 2.0
23.56 1.5 x 2.0
17.44 1.5 x 1.5
13.00
BA
DG
HG
122
B
GC
GD
HE
KL
DIA. SHAFT
SD
CW THD
Q
HN
A
HJ
CF
CL
DISCH.
HJ
SIZE
CW BHD
GD
CF
OUTSIDE
HOUSING
44
TS
DWG. NO. AC14967D
REVISED 7-15-05
DRAWN 5-5-94
542
TO
730
CE
DC
HQ
GC
GA. SIDES
GA
HE
DY
CF
HE
DG
HG
CJ
N
HQ
HN
CK
GA. SCROLL
GB
KS
P
KWY SIZE
CW UBD
KL
DIA. SHAFT
SD
CW THD
Q
HN
DY
A
HG
(NOTE 4)
DE
HJ
DY
CM
BA
OUTSIDE
B HOUSING
J
BASE ANGLES
H
CG
CL
FAN HSG.
FOUNDATION PLAN
M
CL FAN SHAFT
BH
DIA. BASE
HOLES
K
NOTES:
1. INLET BEARING BAR SUPPORTS ARE REMOVABLE.
2. "CW" ROTATION IS SHOWN. "CCW" ROTATION IS
SIMILAR BUT OPPOSITE.
3. FOR OPTIONAL FLANGED OUTLET CONNECTION
AND DOWNBLAST DISCHARGE SEE DWG. AC14896.
4. BEARING BAR SUPPORTS MAY EXTEND BEYOND
BASE ANGLES. SEE DWG. AC1000648 FOR
DIMENSIONS IF SPACE LIMITATIONS ARE REQUIRED
FOR MOUNTING FAN.
300
TO
490
CE
M
K
ARR. 3
SP
DISCH.
ACCESSORIES REQ'D.
CFM
SIZE
S.O. NO.
CERT. BY:
NON-ROTATABLE
RPM
ROT.
BHP
OV
TS
DWG. NO. AC14968F
REVISED 1-30-07
DRAWN 5-5-94
CLASS I & II
UNIT NO.
MINNEAPOLIS, MINNESOTA
DWDI
TWIN CITY FAN & BLOWER
ENG./ARCH.
LOC.
JOB:
"BAE"
DIMENSIONS ARE NOT TO BE USED FOR CONSTRUCTION. CERTIFIED DRAWINGS AVAILABLE UPON REQUEST.
HJ
CL
DISCH.
HJ
CW BHD
GD
CF
OUTSIDE
HOUSING
45
Twin City Bulletin 370
Typical Specifications - SWSI
Fans shall be Type BAE Airfoil, as manufactured by Twin City Fan & Blower, Minneapolis, Minnesota.
PERFORMANCE — Fans shall be tested in accordance with AMCA 210 and AMCA 300 test codes for air
moving devices and shall be licensed to bear the AMCA certified ratings seal for both sound and air.
Fans shall have a sharply rising pressure characteristic extending through the operating range and continuing to
rise beyond the efficiency peak to ensure quiet and stable operation. Fans shall have a non-overloading design
with self-limiting horsepower characteristics and shall reach a peak in the normal selection area. All fans shall
be capable of operating over the minimum pressure class limits, as specified in AMCA Standard 99-2408-69.
HOUSING — BAE fan housings shall be of heavy gauge, continuously welded construction. Housings with lock
seams or partially welded construction are not acceptable. Discharge flanges are to be provided for rigidity
and duct connection. Housings shall be suitably braced to prevent vibration or pulsation. Housings shall have
tapered spun, aerodynamically designed inlet cones or shrouds providing stable flow and high rigidity.
Class I and II sizes 270 and smaller, excluding Arrangement 3, shall be of the rotatable design, convertible to
8 standard discharge configurations.
WHEEL — Wheels shall be of the non-overloading type. Wheels shall have a precision spun, flat inlet cone to
allow higher efficiencies over the performance range of the fan. Sizes 245 and smaller shall have airfoil-shaped,
extruded aluminum blades. Sizes 270 and larger shall have die-formed airfoil steel blades with the option of
extruded aluminum blades. All hollow blade wheels shall be continuously welded around all edges. All wheels
shall be statically and dynamically balanced on precision electronic balancers to a Balance Quality Grade G6.3
per ANSI/AMCA 204 or better.
SHAFT — Shafts shall be AISI 1040 or 1045 hot rolled steel, accurately turned, ground, polished, and ring
gauged for accuracy. Shafts shall be sized for the first critical speed of at least 1.43 times the maximum
speed.
BEARINGS — Bearings shall be heavy duty, grease lubricated, spherical roller or adapter mounted anti-friction
ball, self-aligning, pillow block type and selected for a minimum average bearing life (AFBMA L-50) in excess
of 200,000 hours at the maximum fan RPM.
DRIVE — Motor sheaves shall be cast iron, variable pitch on applications 10 HP and smaller, and fixed pitch
on 15 HP and larger. Drives and belts shall be located external to the fan casing and rated for 150% of the
required motor HP.
FINISH AND COATING — The entire fan assembly, excluding the shaft, shall be thoroughly degreased and
deburred before application of a rust-preventative primer. After the fan is completely assembled, a finish coat
of paint shall be applied to the entire assembly. The fan shaft shall be coated with a petroleum-based rust
protectant.
ACCESSORIES — When specified, accessories such as belt guards, weather covers, access doors, companion
flanges, variable inlet vanes, outlet dampers, inlet boxes, shaft coolers, shaft seals, inlet screens, etc., shall be
provided by Twin City Fan & Blower to maintain one source responsibility.
When specified, fans shall be supplied with internal or nested type variable inlet vanes for wheel diameters
161∕2" and larger. Cantilevered vane blades are to be used through Size 660 to minimize air performance insertion losses and noise. The operating mechanism shall be out of the inlet airstream.
FACTORY RUN TEST — All fans prior to shipment shall be completely assembled and test run as a unit at the
specified operating speed or maximum RPM allowed for the particular construction type. Each wheel shall be
statically and dynamically balanced in accordance with ANSI/AMCA 204 “Balance Quality and Vibration Levels
for Fans” to Fan Application Category BV-3, Balance Quality Grade G6.3. Balance readings shall be taken by
electronic type equipment in the axial, vertical, and horizontal directions on each of the bearings. Records shall
be maintained and a written copy shall be available upon request.
GUARANTEE — The manufacturer shall guarantee the workmanship and materials for its BAE airfoil fans for at
least one (1) year from startup or eighteen (18) months from shipment, whichever occurs first.
46
Twin City Bulletin 370
Typical Specifications - DWDI
Fans shall be Type BAE Airfoil, as manufactured by Twin City Fan & Blower, Minneapolis, Minnesota.
PERFORMANCE — Fans shall be tested in accordance with AMCA 210 and AMCA 300 test codes for air
moving devices and shall be licensed to bear the AMCA certified ratings seal for both sound and air.
Fans shall have a sharply rising pressure characteristic extending through the operating range and continuing to
rise beyond the efficiency peak to ensure quiet and stable operation. Fans shall have a non-overloading design
with self-limiting horsepower characteristics and shall reach a peak in the normal selection area. All fans shall
be capable of operating over the minimum pressure class limits, as specified in AMCA Standard 99-2408-69.
HOUSING — BAE fan housings shall be of heavy gauge, continuously welded construction. Housings with lock
seams or partially welded construction are not acceptable. Housings shall be suitably braced to prevent vibration or pulsation. Housings shall have spun, aerodynamically designed inlet cones or inlet venturies for smooth
airflow into the wheels.
WHEEL — Wheels shall have a precision spun, flat inlet cone to allow higher efficiencies over the performance
range of the fan. Sizes 245 and smaller shall have airfoil-shaped, extruded aluminum blades. Sizes 270 and
larger shall have die-formed airfoil steel blades with the option of extruded aluminum blades. All hollow blade
wheels shall be continuously welded around all edges. All wheels shall be statically and dynamically balanced
on precision electronic balancers to a Balance Quality Grade G6.3 per ANSI/AMCA 204 or better.
SHAFT — Shafts shall be AISI 1040 or 1045 hot rolled steel, accurately turned, ground, polished, and ring
gauged for accuracy. Shafts shall be sized for the first critical speed of at least 1.43 times the maximum
speed.
BEARINGS — Bearings shall be heavy duty, grease lubricated, spherical roller or adapter mounted anti-friction
ball, self-aligning, pillow block type and selected for a minimum average bearing life (AFBMA L-50) in excess
of 200,000 hours at the maximum fan RPM.
DRIVE — Motor sheaves shall be cast iron, variable pitch on applications 10 HP and smaller, and fixed pitch
on 15 HP and larger. Drives and belts shall be located external to the fan casing and rated for 150% of the
required motor HP.
FINISH AND COATING — The entire fan assembly, excluding the shaft, shall be thoroughly degreased and
deburred before application of a rust-preventative primer. After the fan is completely assembled, a finish coat
of paint shall be applied to the entire assembly. The fan shaft shall be coated with a petroleum-based rust
protectant.
ACCESSORIES — When specified, accessories such as belt guards, weather covers, access doors, companion
flanges, variable inlet vanes, outlet dampers, inlet boxes, shaft coolers, shaft seals, inlet screens, etc., shall be
provided by Twin City Fan & Blower to maintain one source responsibility.
When specified, fans shall be supplied with internal or nested type variable inlet vanes for wheel diameters 161∕2"
and larger. Cantilevered vane blades are to be used through Size 660 to minimize air performance insertion
losses and noise. The operating mechanism shall be out of the inlet airstream. Double width fans shall have
interconnecting linkage to ensure operation in unison.
FACTORY RUN TEST — All fans prior to shipment shall be completely assembled and test run as a unit at the
specified operating speed or maximum RPM allowed for the particular construction type. Each wheel shall be
statically and dynamically balanced in accordance with ANSI/AMCA 204 “Balance Quality and Vibration Levels
for Fans” to Fan Application Category BV-3, Balance Quality Grade G6.3. Balance readings shall be taken by
electronic type equipment in the axial, vertical, and horizontal directions on each of the bearings. Records shall
be maintained and a written copy shall be available upon request.
GUARANTEE — The manufacturer shall guarantee the workmanship and materials for its BAE airfoil fans for at
least one (1) year from startup or eighteen (18) months from shipment, whichever occurs first.
47
Twin City Bulletin 370
Industrial & Commercial Fans
Centrifugal Fans | Utility Sets | Plenum & Plug Fans | Inline Centrifugal Fans
Mixed Flow Fans | Tubeaxial & Vaneaxial Fans | Propeller Wall Fans | Propeller Roof Ventilators
Centrifugal Roof & Wall Exhausters | Ceiling Ventilators | Gravity Ventilators | Duct Blowers
Radial Bladed Fans | Radial Tip Fans | High Efficiency Industrial Fans | Pressure Blowers
Laboratory Exhaust Fans | Filtered Supply Fans | Mancoolers | Fiberglass Fans | Custom Fans
Twin city fan & blower | www.tcf.com
A Twin City Fan Company
1MWG12/10
5959 Trenton Lane N | Minneapolis, MN 55442 | Phone: 763-551-7600 | Fax: 763-551-7601
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