
26
Table 6 — Physical Data — Fan Data by Wheel Diameter and Type (cont)
*Minimum fan shaft diameter listed. Refer to Tables 22-24 for specific
diameter by unit size.
†See the section Fan Airflow Measurement Piezometer Ring on
page 113 for K Factor use.
BELT DRIVE PLENUM FANS
FAN
WHEEL
WHEEL
DIAMETER
(in.)
INLET
CONE
DIAMETER
(in.)
MAX SPEED (RPM)
FAN SHAFT DIAMETER
(in.)*
FAN WHEEL WEIGHT
(lb)
NUMBER
OF FAN
BLADES
K FACTOR
CLASS 1
CLASS 2
CLASS 1
CLASS 2
CLASS 1
CLASS 2
123
12
1
/
4
7
1
/
2
3567
4655
1
1
3
/
16
8
8
9
890
153
15
9
1
/
4
2765
3610
1
1
3
/
16
13
13
9
1,314
163
16
1
/
2
10
1
/
8
2465
3216
1
1
27
27
9
1,560
183Q
18
1
/
4
11
15
/
17
2190
2855
1
1
3
/
16
35
35
12
2,118
223Q
22
1
/
4
14
1
/
2
1872
2442
1
7
/
16
1
7
/
16
50
50
12
3,056
243Q
24
1
/
2
15
67
/
83
1701
2218
1
7
/
16
1
7
/
16
70
70
12
4,333
273Q
27
17
17
/
33
1463
1910
1
7
/
16
1
7
/
16
80
80
12
4,333
303Q
30
19
11
/
16
1316
1715
1
7
/
16
1
7
/
16
100
100
12
5,434
333Q
33
21
33
/
68
1202
1568
1
11
/
16
1
11
/
16
135
135
12
6,436
363Q
36
1
/
2
24
1055
1378
1
11
/
16
1
11
/
16
171
171
12
7,836
403Q
40
1
/
4
26
5
/
8
955
1249
1
15
/
16
1
15
/
16
203
203
12
10,207
443Q
44
1
/
2
29
1
/
2
865
1131
2
3
/
16
2
3
/
16
277
277
12
12,324
493Q
49
32
1
/
2
808
1050
2
11
/
16
2
11
/
16
366
366
12
15,442
40HE
40
26
7
/
8
1150
1400
2
7
/
16
2
7
/
16
250
257
10
13,025
44HE
44
3
/
4
30
1100
1200
2
3
/
16
2
7
/
16
356
360
10
14,600
49HE
49
13
/
16
33
7
/
16
950
1100
2
7
/
16
2
7
/
16
454
454
10
17,550
55HE
55
1
/
4
37
1
/
16
850
975
2
15
/
16
2
15
/
16
651
651
10
21,370
DIRECT DRIVE PLENUM FANS
—
SINGLE AND DUAL
FAN WHEEL
WHEEL
DIAMETER (in.)
INLET CONE
DIAMETER (in.)
MAX SPEED
(RPM)
CLASS 2
MOTOR SHAFT
DIAMETER
(in.)*
CLASS 2
FAN WHEEL
WEIGHT (lb)
CLASS 2
NUMBER OF
FAN BLADES
K FACTOR
105
10
1
/
2
6
31
/
50
5195
5
/
8
4
9
592
122
12
1
/
5
7
18
/
25
4425
5
/
8
5
9
842
135
13
1
/
2
8
1
/
2
4038
7
/
8
7
9
963
150
15
9
11
/
25
3650
7
/
8
11
9
1147
165
16
1
/
2
10
16
/
39
3275
7
/
8
13
9
1450
182
18
1
/
5
11
1
/
2
2979
7
/
8
17
9
1571
200
20
12
23
/
39
2771
7
/
8
19
9
2087
222
22
1
/
5
14
2
/
67
2454
7
/
8
26
9
2458
245
24
1
/
2
15
11
/
25
2269
1
1
/
8
32
9
2941
270
27
17
1
/
33
2035
1
1
/
8
45
9
3597
300
30
18
47
/
50
1851
1
3
/
8
63
9
4641
330
33
20
17
/
21
1620
1
3
/
8
75
9
5352
365
36
1
/
2
23
1465
1
5
/
8
93
9
6629
402
40
1
/
5
25
19
/
50
1330
1
5
/
8
120
9
7943
DIRECT DRIVE PLENUM FANS
—
4 AND 6 FAN ARRAYS
FAN WHEEL
WHEEL
DIAMETER (in.)
INLET CONE
DIAMETER (in.)
MAX SPEED
(RPM)
CLASS 2
MOTOR SHAFT
DIAMETER
(in.)*
CLASS 2
FAN WHEEL
WEIGHT (lb)
CLASS 2
NUMBER OF
FAN BLADES
K FACTOR
182
18
1
/
8
6
5
/
8
3360
1
1
/
8
17
9
1673
200
20
7
5
/
7
3125
1
1
/
8
19
9
1942
245
24
1
/
2
8
1
/
2
2269
1
1
/
8
32
9
3010