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 1
0
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