BULLETIN 111
JUNE, 2007
JUNIOR FANS
PACKAGED UNITS WITH FORWARD CURVED WHEELS
• Capacities—160 to 4600 CFM
• Static pressures to 21⁄2”WG
• Temperatures to 450°F.
• Direct-Drive or Belt-Drive
THE NEW YORK BLOWER COMPANY
7660 Quincy Street
Willowbrook, IL 60527-5530
Visit us on the Web: http://www.nyb.com
Phone: (800) 208-7918 Email: nyb@nyb.com
GENERAL FEATURES
•
. . . self-contained units of small
and medium capacities for ventilation
and process-air applications.
•
•
DIRECT-DRIVE
•
SIZE 53
195 to 500 CFM
SP to 2”WG
Rugged construction–heavy-gauge [primarily
12 gauge] steel . . . housings are continuously
welded [exception: Size 53 Junior Fan housing is cast-aluminum].
Small packaged design–provides easy lowcost installation.
Baked enamel finish–standard finish is baked
green enamel [exception: Size 53 housing is
unpainted] . . . shaft is coated with rustpreventative material.
Rotation and discharge–Junior Fans are available in clockwise or counterclockwise rotation
in any of seven discharge positions [see pages
4-5] . . . note: Size 53 available only in clockwise rotation.
BELT-DRIVE
Cast-aluminum housing
and zinc-coated forward
curved steel wheel . . .
two motor sizes available . . . maximum temperature: 180°F.
SIZES
78/93
See page 4.
160 to
1430 CFM
SP to 21 ⁄ 2”WG
SIZES
75/90
Adjustable V-belt drive provides a variety of
fan speeds . . . maximum temperature: 200°F.
Heat Fan available for 450°F.
300 to 1880 CFM
SP to 2”WG
See page 6.
Direct-drive arrangement
for maximum simplicity
. . . maximum temperature: 180°F.
See page 5.
SIZES
125/155
1030 to
4640 CFM
SP to 21 ⁄ 2”WG
The New York Blower
Company certifies that
the Junior 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 comply with
the requirements of the
AMCA Certified Ratings
Program.
Copyright © 2007 by The New York Blower Company.
®Registered trademark of The New York Blower Company.
Compact base design provides for ease of
installation and maintenance . . . adjustable
V-belt drives . . . maximum temperature:
200°F. For higher temperatures or pressures,
see either GPA Fans or General Purpose Fans
bulletin.
See page 7.
PAGE 2
WHEELS
FORWARD
CURVED
WHEEL
For slow speeds and quiet operation . . . choice of
five wheel diameters: 51 ⁄ 4”, 71 ⁄ 2”, 9”, 121 ⁄ 4”, and 15”
. . . steel wheels are standard.
ACCESSORIES
Outlet shutters feature steel casings with aluminum
blades. Heavy-duty shutters available for outlet velocities
to 3000 FPM. Air movement opens the shutters which
are positively held in open position by external tie rod.
When fan stops, shutters drop to a closed position. The
die-formed edges overlap, keeping out drafts and protecting the fan against weather. Not available on Size 53.
Maximum temperature: 200°F.
OUTLET
SHUTTER
For Horizontal,
Angular Up, and
Up Blast discharges
INLET
AND
OUTLET
GUARDS
Inlet and outlet guards are available for all Junior Fans
except Size 53.
Sizes 125/155
Junior Fans can be equipped with a weather cover/belt
guard to completely enclose the drive assembly. The
steel assembly can be easily removed for inspection and
maintenance. The louvered end panel provides ample
motor ventilation.
WEATHER
COVER/
BELT
GUARD
The weather cover/belt guard cannot be used on Sizes
75/90 Junior Fans with integral horsepower motors. On
Sizes 78/93 Junior Heat Fans, the weather cover/belt
guard is moved back to leave a gap over the shaft cooler.
Sizes 78/93
PAGE 3
SIZE 53–DIRECT-DRIVE
MAXIMUM TEMPERATURE: 180˚F.
WITH
1⁄ 3
OR
1⁄ 2
HP MOTOR
Inlet and outlet dimensions are OD.
Dimensions not to be used for construction unless certified.
AVAILABLE ONLY IN
CLOCKWISE ROTATION
DIMENSIONS [inches] AND WEIGHTS [lbs.]
Motor frame
A
H [minimum]
H [maximum]
Wheel weight
Fan weight†
48
56
61 ⁄ 2
61 ⁄ 2
131 ⁄ 4
141 ⁄ 4
147 ⁄ 8
151 ⁄ 4
1
1
9
9
Tolerance: ± 1⁄8”
† Fan weight does not included motor weight.
SIZE 53
Fan
size
53
Capacities based on air density of .075 lbs. per cu. ft.
Outlet area: .123 sq. ft.
Motor
CFM at various static pressures
1 ⁄ 2"SP
1"SP
11 ⁄ 4"SP
HP
RPM
0"SP
1 ⁄ 8"SP
1 ⁄ 4"SP
3 ⁄ 8"SP
1⁄ 3
1725
3500
286
—
261
—
236
—
218
—
1⁄ 2
198
—
Performance certified is for installation Type B: Free inlet, Ducted outlet.
Performance ratings do not include the effects of appurtenances [accessories].
PAGE 4
—
482
—
462
11 ⁄ 2"SP
13 ⁄ 4"SP
2"SP
Max.
BHP*
—
445
—
428
—
300
.07
.47
* Maximum BHP
over cataloged range.
SIZES 75/90–DIRECT-DRIVE
MAXIMUM TEMPERATURE: 180˚F.
Inlet and outlet dimensions are outside.
Dimensions not to be used for construction unless certified.
DIMENSIONS [inches] AND WEIGHTS [lbs.]
Outlet
Size Wheel
area
dia. sq.
ft.
A
B
C
D
E
F
G
T
V
W
a
b
c
d
Base Wheel Fan
holes wt.
wt.†
71 ⁄ 2 .40 103 ⁄ 8 61 ⁄ 2 71 ⁄ 8 181 ⁄ 4 51 ⁄ 8 81 ⁄ 8 61 ⁄ 8 53 ⁄ 4 51 ⁄ 2 61 ⁄ 2 65 ⁄ 8 101 ⁄ 2 75 ⁄ 8 55 ⁄ 8
91 ⁄ 2 .52 101 ⁄ 2 73 ⁄ 4 81 ⁄ 2 101 ⁄ 2 53 ⁄ 4 97 ⁄ 8 71 ⁄ 8 61 ⁄ 4 51 ⁄ 2 63 ⁄ 4 77 ⁄ 8 121 ⁄ 2 91 ⁄ 4 61 ⁄ 2
75
90
3⁄ 8
31
37
Tolerance: ± 1⁄8”
† Fan weight does not included motor weight.
SIZES 75/90
Fan
size
3
5
1⁄ 2
Capacities based on air density of .075 lbs. per cu. ft.
Motor
CFM at various static pressures
3 ⁄ 4"SP
1"SP
11 ⁄ 4"SP
HP
RPM
1 ⁄ 8"SP
1 ⁄ 4"SP
3 ⁄ 8"SP
1 ⁄ 2"SP
75
11 ⁄ 6
11 ⁄ 3
11 ⁄ 2
1150
1725
1725
1651
—
1026
1589
—
1988
1510
—
1948
1411
1905
1905
—
1808
1808
—
1685
1685
90
11 ⁄ 3
13 ⁄ 4
11 ⁄ 2
11 ⁄ 2
1150
1750
1750
1750
1214
—
—
1915
1143
—
—
1862
1076
—
—
1815
1004
—
—
1768
1805
—
—
1677
—
—
1590
1590
Performance certified is for installation Type B: Free inlet, Ducted outlet.
Performance ratings do not include the effects of appurtenances [accessories].
PAGE 5
11 ⁄ 2"SP
13 ⁄ 4"SP
2"SP
Max.
BHP*
—
—
—
—
—
—
—
—
—
—
—
—
—
1.41
1.48
—
—
1490
1490
—
—
1370
1370
—
1225
1225
1225
—
915
915
915
1.41
1.83
1.15
1.50
* Maximum BHP
over cataloged range.
SIZES 78/93–BELT-DRIVE
MAXIMUM TEMPERATURE: 200˚F.–HEAT FAN CONSTRUCTION: 450˚F.
Inlet and outlet dimensions are outside.
Dimensions not to be used
for construction unless certified.
DIMENSIONS [inches] AND WEIGHTS [lbs.]
Size
Wheel
dia.
Outlet
area sq. ft.
78
93
71 ⁄ 2
91 ⁄ 2
.40
.52
B
C
D
E
F
G
a*
b*
c*
d*
61 ⁄ 2 71 ⁄ 8 181 ⁄ 4 51 ⁄ 8 81 ⁄ 8 61 ⁄ 8 65 ⁄ 8 101 ⁄ 2 75 ⁄ 8 55 ⁄ 8
73 ⁄ 4 81 ⁄ 2 101 ⁄ 2 53 ⁄ 4 97 ⁄ 8 71 ⁄ 8 77 ⁄ 8 121 ⁄ 2 91 ⁄ 4 61 ⁄ 2
Shaft
dia.
Keyway
5⁄ 8
3 ⁄ 16
5⁄ 8
3 ⁄ 16
x 3 ⁄ 32
x 3 ⁄ 32
Wheel
weight.
Fan
weight.†
3
6
42
50
Tolerance: ± 1⁄8”
*Discharge dimensions . . . see pages 4 and 5. †Fan weight does not include motor weight.
Bearings: Sealmaster NP Series ball bearings or equal.
SIZE 78
CFM
OV
Capacities based on air density of .075 lbs. per cu. ft.
Maximum safe speed at 70˚F.: 2800 RPM
1 ⁄ 8"SP
RPM BHP
1 ⁄ 4"SP
RPM BHP
1 ⁄ 2"SP
RPM BHP
3 ⁄ 4"SP
RPM BHP
1"SP
RPM BHP
11 ⁄ 2"SP
RPM BHP
2"SP
RPM BHP
21 ⁄ 2"SP
RPM BHP
159
239
319
400
600
800
549
606
693
.01
.02
.03
768
784
838
.03
.04
.05
1087
1101
.07
.08
1332
1332
.10
.12
1536
.15
399
479
559
1000
1200
1400
792
900
1012
.05
.07
.10
920
1014
1115
.07
.09
.13
1144
1212
1295
.10
.13
.16
1350
1394
1458
.14
.17
.21
1541
1567
1614
.18
.21
.26
1883
1886
1907
.28
.31
.36
2176
2173
2178
.37
.42
.46
2431
2432
.53
.58
639
719
799
1600
1800
2000
1130
1250
1371
.15
.20
.27
1220
1330
1445
.17
.23
.29
1387
1484
1587
.22
.27
.35
1537
1623
1716
.26
.33
.40
1678
1755
1841
.31
.37
.46
1945
2001
2070
.41
.48
.56
2201
2236
2288
.52
.59
.68
2439
2463
2499
.65
.72
.81
879
959
1039
2200
2400
2600
1494
1619
1744
.34
.44
.54
1560
1679
1801
.36
.46
.57
1691
1801
1913
.43
.52
.64
1815
1917
2024
.48
.59
.70
1932
2026
2127
.54
.64
.77
2146
2233
2321
.66
.77
.91
2351
.79
2423
.90
2503 1.04
SIZE 93
CFM
OV
2547
.92
2611 1.05
2632 1.18
Capacities based on air density of .075 lbs. per cu. ft.
Maximum safe speed at 70˚F.: 2200 RPM
1 ⁄ 8"SP
RPM BHP
1 ⁄ 4"SP
RPM BHP
1 ⁄ 2"SP
RPM BHP
3 ⁄ 4"SP
RPM BHP
1"SP
RPM BHP
11 ⁄ 2"SP
RPM BHP
2"SP
RPM BHP
21 ⁄ 2"SP
RPM BHP
207
311
415
400
600
800
434
461
517
.01
.02
.03
609
616
642
.02
.03
.04
862
869
.06
.08
1054
1057
.10
.12
1219
.16
519
623
727
1000
1200
1400
587
665
747
.05
.07
.10
691
754
826
.06
.09
.13
887
923
973
.10
.13
.17
1065
1084
1115
.15
.18
.22
1223
1233
1253
.19
.22
.26
1493
1497
1504
.28
.32
.37
1721
1724
1728
.38
.43
.49
1925
1929
.55
.62
831
935
1039
1600
1800
2000
831
917
1003
.16
.21
.28
902
983
1065
.18
.23
.31
1034
1102
1174
.22
.29
.36
1161
1216
1279
.27
.33
.41
1285
1328
1381
.32
.39
.47
1521
1546
1581
.44
.51
.59
1738
1752
1775
.56
.64
.73
1934
1941
1957
.70
.78
.88
1143
1247
1351
2200
2400
2600
1092
1180
1268
.37
.46
.58
1149
1234
1320
.40
.50
.61
1251
1330
1412
.45
.56
.69
1348
1420
1496
.51
.62
.75
1442
1507
1578
.57
.68
.81
1626
1677
1737
.70
.82
.96
1805
.84
1845
.97
1893 1.11
1979
.99
2008 1.12
2046 1.27
Performance certified is for installation Type B: Free inlet, Ducted outlet. Power rating [BHP] does not include transmission losses.
Performance ratings do not include the effects of appurtenances [accessories].
Tinted capacities indicate BHP requirements which may exceed maximum motor limitations . . . see below.
NOTE: For calculating performance at elevated temperature or altitude, see performance correction factors in separate Engineering Letter.
MAXIMUM
MOTOR
LIMITATIONS
Maximum motor frame*
Open
TE
56
56
Maximum
C-NW dimension
123 ⁄ 4”
*Frame sizes vary in length with motor manufacturer. Check
C-NW dimension above if specific make of motor is required.
MINIMUM/MAXIMUM
V-BELT DRIVE
CENTER DISTANCES
PAGE 6
Motor frame
size
Minimum/maximum
centers in inches
48
56
6.0/7.5
6.0/7.0
SIZES 125/155–BELT-DRIVE
MAXIMUM TEMPERATURE: 200˚F.
Inlet and outlet dimensions are outside.
Dimensions not to be used
for construction unless certified.
DIMENSIONS [inches] AND WEIGHTS [lbs.]
Size
Wheel
dia.
125
155
121 ⁄ 4
Size
Outlet
area sq. ft.
1.86
1.52
151 ⁄ 4
R
S
T
125 61 ⁄ 8 127 ⁄ 8 91 ⁄ 4
155 71 ⁄ 8 127 ⁄ 8 91 ⁄ 4
A
B
C
D
E
F
G
H
J
17
17
10
12
123 ⁄ 8
133 ⁄ 4
77 ⁄ 8
137 ⁄ 8
103 ⁄ 8
271 ⁄ 2
11 ⁄ 8
151 ⁄ 8 167 ⁄ 8
93 ⁄ 4
157 ⁄ 8 123 ⁄ 4 301 ⁄ 2
15 ⁄ 8
V
W
Y
81 ⁄ 8 101 ⁄ 8
81 ⁄ 8 101 ⁄ 8
5⁄ 8
5⁄ 8
a*
b*
c*
d*
115 ⁄ 8 161 ⁄ 4 127 ⁄ 8 191 ⁄ 4
141 ⁄ 8 193 ⁄ 4 153 ⁄ 4 113 ⁄ 8
Shaft
1
1
Keyway
1⁄ 4
1⁄ 4
K
L
M
N
3
3
133 ⁄ 4
193 ⁄ 8
17
17
163 ⁄ 4 113 ⁄ 8
Base holes
x 1⁄ 8
x 1⁄ 8
9 ⁄ 16
9 ⁄ 16
Wheel
weight.
Fan
weight.†
11
14
188
133
Tolerance: ± 1⁄8”
*Discharge dimensions . . . see pages 4 and 5. †Fan weight does not include motor weight.
Bearings: Link-Belt P3-U200 Series ball bearings or equal.
SIZE 125
Capacities based on air density of .075 lbs. per cu. ft.
Maximum safe speed at 70˚F.: 1715 RPM
1 ⁄ 8"SP
RPM BHP
420
.09
464
.13
509
.19
1 ⁄ 4"SP
RPM BHP
498
.12
535
.17
575
.23
1 ⁄ 2"SP
RPM BHP
638
.20
658
.25
688
.31
CFM
OV
1031
1203
1375
1200
1400
1600
1547
1719
1891
1800
2000
2200
557
608
658
.26
.34
.44
616
660
706
.30
.39
.49
723
760
801
2063
2235
2407
2400
2600
2800
711
764
819
.56
.72
.88
752
801
852
.61
.76
.93
842
.73
884
.88
928 1.05
2579
2751
2923
3095
3000
3200
3400
3600
873
927
982
1038
1.07
1.29
1.54
1.82
903
954
1007
1060
1.12
1.34
1.59
1.87
SIZE 155
972
1019
1066
1114
3 ⁄ 4"SP
RPM BHP
772
.29
777
.34
793
.41
.39
.48
.60
11 ⁄ 2"SP
RPM BHP
2"SP
RPM BHP
21 ⁄ 2"SP
RPM BHP
893
896
.44
.51
910
934
963
.59
.70
.83
1094
.84
1100
.95
1116 1.08
1262 1.23
1266 1.37
1412 1.68
922
.85
961 1.02
1002 1.20
997
.98
1032 1.14
1071 1.33
1137 1.23
1166 1.42
1197 1.62
1276 1.53
1293 1.71
1317 1.92
1413 1.85
1421 2.04
1436 2.25
1044
1086
1130
1174
1109
1150
1192
1234
1230
1267
1305
1343
1345
1375
1409
1445
1456
1482
1511
1542
818
850
884
1.26
1.48
1.73
2.01
1"SP
RPM BHP
.49
.59
.71
1.40
1.63
1.88
2.18
1.54
1.79
2.06
2.35
1.85
2.10
2.39
2.70
2.17
2.43
2.73
3.06
2.50
2.78
3.09
3.43
Capacities based on air density of .075 lbs. per cu. ft.
Maximum safe speed at 70˚F.: 1400 RPM
1 ⁄ 8"SP
RPM BHP
342
.13
380
.19
418
.27
CFM
OV
1535
1791
2047
1200
1400
1600
2303
2559
2815
1800
2000
2200
459
500
542
3071
3327
3583
2400
2600
2800
584
.81
628 1.01
672 1.24
3839
4095
4351
4607
3000
3200
3400
3600
715
759
804
848
.37
.48
.63
1.51
1.81
2.16
2.55
1 ⁄ 4"SP
RPM BHP
401
.17
433
.24
467
.32
3 ⁄ 4"SP
RPM BHP
609
.36
619
.44
637
.55
1"SP
RPM BHP
.55
.69
.86
658
.67
685
.82
714 1.00
731
.80
751
.96
776 1.16
620
.89
660 1.09
702 1.33
685 1.05
721 1.27
759 1.52
745 1.20
780 1.45
814 1.72
803 1.37
833 1.62
865 1.90
743
785
828
872
798
838
877
918
850
887
924
963
503
540
579
.43
.55
.71
1.61
1.93
2.28
2.67
1 ⁄ 2"SP
RPM BHP
510
.26
529
.33
554
.44
584
615
649
1.82
2.14
2.51
2.91
2.02
2.36
2.73
3.16
704
715
899
934
970
1006
.56
.67
2.21
2.57
2.97
3.40
11 ⁄ 2"SP
RPM BHP
2"SP
RPM BHP
21 ⁄ 2"SP
RPM BHP
866 1.08
878 1.26
895 1.46
991 1.39
997 1.58
1007 1.80
1106 1.92
1113 2.15
914 1.70
939 1.97
964 2.27
1020 2.05
1039 2.34
1060 2.66
1122 2.42
1135 2.72
1150 3.06
993 2.61
1023 2.99
1056 3.41
1083 3.01
1109 3.41
1170 3.44
858
.93
Performance certified is for installation Type B: Free inlet, Ducted outlet. Power rating [BHP] does not include transmission losses.
Performance ratings do not include the effects of appurtenances [accessories].
Tinted capacities indicate BHP requirements which may exceed maximum motor limitations . . . see below.
MAXIMUM
MOTOR
LIMITATIONS
Maximum motor frame*
Open
TE
182T
182T
Maximum
C-NW dimension
12”
*Frame sizes vary in length with motor manufacturer. Check
C-NW dimension above if specific make of motor is required.
MINIMUM/MAXIMUM
V-BELT DRIVE
CENTER DISTANCES
PAGE 7
Motor frame
size
Minimum/maximum
centers in inches
48
56, 143T, 145T
182T
7.75/10.75
7.25/10.25
8.25/9.75
COMPLETE SELECTION OF
AIR-MOVING EQUIPMENT
The New York Blower Company offers
thousands of different types, models, and
sizes of air-moving equipment. Contact
your nyb representative for assistance in
identifying the best fan for your application.
AIR-HANDLING
[AXIAL]
For the ideal handling of clean
to moderately dirty airstreams.
Commercial and industrial HVAC,
drying and cooling systems, fume
extraction, and process-heat
removal are typical applications.
DUST/MATERIAL
HANDLING
Wide range of duty available
with unique fan lines capable
of handling light dust to heavy
material. Typical applications
include dust-collection and
high-pressure process along
with material-conveying.
AIR-HANDLING
[CENTRIFUGAL]
Designed for clean to moderately
dirty gas streams. Commercial
and industrial HVAC, process
cooling, light material-conveying,
heat removal, and dryer exhaust
are just a few of the numerous
sample applications
FIBERGLASS
REINFORCED
PLASTIC [FRP]
Choice of performance and duty for
corrosive gas streams. Applications
include chemical process, wastewater
treatment, laboratory hood exhaust,
and tank aeration.
CUSTOM PRODUCTS
Designed for unique applications. Variety of configurations,
temperatures, flows, and pressures. Wide range of
modifications and
accessories are
available to
meet the most
demanding
specifications.
Leading the industry forward since 1889
ROOF VENTILATORS
Including both hooded and upblast ventilators,
propeller fans, and centrifugal roof exhausters.
These units are ideal for industrial, commercial,
and institutional applications.
HEATING
PRODUCTS
Industrial-duty steam
unit heaters with steam
heating coils are available
for facility heating and
process-heat transfer.
PROCESS/FAN
COMPONENTS
Plug fans, plenum fans, wheels, inlet cones,
and housings for a wide variety of OEM
applications. Process/fan components are
used in air-handling units, ovens, dryers,
freezer tunnels, and filtration systems.