QEI-40 Class II
Performance Data
Maximum Fan RPM | 1251 | ||
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Specification Data |
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Maximum Motor | 364T | ||
Frame Size | |||
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Minimum Motor | 71⁄2 hp | 5.5 kW | |
Starting hp | |||
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Wheel Diameter | 49 in. | 1245 mm | |
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Approximate Weight | 1900 lbs. | 862 kg. | |
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Maximum Bhp = (Fan RPM / 324)3 |
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Outlet Velocity (FPM) = CFM / 16.77 |
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Tip Speed (FPM) = Fan RPM x 12.8 |
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%WOV = (CFM x 100) / (Fan RPM x 42.4) Imperial data — Metric data
100)x
Static (PaPressure
20
15
10
5
0
PressureStatic wg).(in
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| RPM |
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| 40 |
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| 50 |
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| 60 | 50% WOV |
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| % WOV |
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| 60% WOV |
| Density | 0.075 lb/ft |
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| Density 1.2 kg/m |
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| 70% WOV |
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| 80% WOV |
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| 1251 |
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| Y |
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| 1192 |
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| F | T | H |
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| 1107 |
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4 | 10 |
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| F | T |
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| 1006 |
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| 90% WOV |
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| C |
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0 | 5 | 10 |
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| 25 | 30 | 35 | 40 | 45 | 50 |
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| Volume (cfm x 1000) |
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0 |
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| 40 |
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Performance Data
Volume
(m
3/hr
x 1000)
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| STATIC PRESSURE (inches wg) |
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CFM | OV | 0.5 |
| 1 |
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| RPM |
| BHP | RPM |
| BHP | RPM |
| BHP | RPM |
| BHP | RPM |
| BHP | RPM |
| BHP | RPM |
| BHP | RPM |
| BHP | RPM |
| BHP |
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18000 | 1077 | 481 |
| 2.48 | 540 |
| 4.06 | 649 |
| 7.91 | 754 |
| 12.4 | 853 |
| 17.3 |
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20000 | 1197 | 523 |
| 3.03 | 575 |
| 4.70 | 675 |
| 8.71 | 772 |
| 13.5 | 866 |
| 18.6 | 953 |
| 24.1 |
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22000 | 1317 | 566 |
| 3.68 | 613 |
| 5.45 | 705 |
| 9.61 | 794 |
| 14.5 | 880 |
| 20.0 | 966 |
| 25.7 | 1045 |
| 31.8 |
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24000 | 1437 | 609 |
| 4.43 | 652 |
| 6.31 | 739 |
| 10.7 | 819 |
| 15.7 | 902 |
| 21.3 | 979 |
| 27.4 | 1058 |
| 33.7 | 1130 |
| 40.4 |
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26000 | 1556 | 653 |
| 5.30 | 691 |
| 7.29 | 773 |
| 11.8 | 849 |
| 17.0 | 923 |
| 22.8 | 999 |
| 29.1 | 1071 |
| 35.7 | 1143 |
| 42.6 | 1210 |
| 49.8 |
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28000 | 1676 | 698 |
| 6.29 | 733 |
| 8.40 | 808 |
| 13.1 | 881 |
| 18.4 | 950 |
| 24.4 | 1021 |
| 30.9 | 1089 |
| 37.8 | 1156 |
| 44.9 | 1223 |
| 52.3 |
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30000 | 1796 | 743 |
| 7.41 | 776 |
| 9.65 | 846 |
| 14.6 | 915 |
| 20.1 | 981 |
| 26.2 | 1043 |
| 32.7 | 1111 |
| 39.8 | 1174 |
| 47.3 | 1236 |
| 55.0 |
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32000 | 1916 | 788 |
| 8.67 | 820 |
| 11.0 | 884 |
| 16.2 | 949 |
| 21.8 | 1011 |
| 28.1 | 1073 |
| 34.9 | 1132 |
| 42.0 | 1195 |
| 49.7 |
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34000 | 2035 | 833 |
| 10.1 | 863 |
| 12.6 | 923 |
| 17.9 | 984 |
| 23.7 | 1046 |
| 30.2 | 1104 |
| 37.1 | 1160 |
| 44.5 | 1217 |
| 52.2 |
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36000 | 2155 | 879 |
| 11.7 | 907 |
| 14.3 | 963 |
| 19.8 | 1022 |
| 25.9 | 1080 |
| 32.5 | 1135 |
| 39.5 | 1190 |
| 47.1 | 1242 |
| 55.0 |
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38000 | 2275 | 925 |
| 13.4 | 951 |
| 16.2 | 1003 |
| 21.9 | 1060 |
| 28.2 | 1114 |
| 34.9 | 1169 |
| 42.2 | 1221 |
| 49.8 |
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40000 | 2395 | 971 |
| 15.3 | 996 |
| 18.2 | 1046 |
| 24.2 | 1099 |
| 30.7 | 1150 |
| 37.6 | 1203 |
| 45.0 |
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Shaded values show where Class I fan selections are more efficient than Class II.
| Inlet Sound Power, LWi | [dB ref |
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RPM | % WOV | 1 | 2 | 3 |
| 4 | 5 | 6 | 7 | 8 | LWiA |
| 100 | 82 | 73 | 69 |
| 69 | 68 | 58 | 49 | 42 | 72 |
350 | 80 | 79 | 70 | 67 |
| 67 | 64 | 55 | 46 | 38 | 68 |
60 | 77 | 68 | 64 |
| 66 | 63 | 54 | 46 | 38 | 67 | |
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| 50 | 75 | 67 | 63 |
| 65 | 63 | 54 | 46 | 38 | 66 |
| 100 | 87 | 84 | 78 |
| 77 | 77 | 75 | 60 | 54 | 81 |
500 | 80 | 83 | 80 | 75 |
| 74 | 73 | 65 | 56 | 49 | 76 |
60 | 80 | 77 | 72 |
| 73 | 72 | 64 | 56 | 50 | 75 | |
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| 50 | 81 | 77 | 72 |
| 72 | 72 | 63 | 55 | 50 | 75 |
| 100 | 85 | 93 | 86 |
| 85 | 84 | 85 | 73 | 64 | 90 |
700 | 80 | 82 | 90 | 84 |
| 83 | 80 | 75 | 67 | 60 | 85 |
60 | 80 | 87 | 80 |
| 80 | 78 | 74 | 67 | 61 | 82 | |
|
| ||||||||||
| 50 | 84 | 88 | 80 |
| 79 | 77 | 72 | 66 | 62 | 82 |
| 100 | 89 | 96 | 98 |
| 95 | 92 | 92 | 90 | 74 | 99 |
1000 | 80 | 85 | 93 | 95 |
| 92 | 88 | 84 | 79 | 70 | 94 |
60 | 85 | 90 | 92 |
| 89 | 86 | 82 | 77 | 71 | 91 | |
|
| ||||||||||
| 50 | 87 | 89 | 90 |
| 88 | 85 | 81 | 77 | 72 | 90 |
| 100 | 93 | 97 | 104 |
| 101 | 97 | 96 | 99 | 83 | 105 |
1251 | 80 | 89 | 92 | 99 |
| 99 | 94 | 90 | 87 | 78 | 100 |
60 | 90 | 91 | 95 |
| 95 | 91 | 88 | 84 | 78 | 97 | |
|
| ||||||||||
| 50 | 93 | 93 | 95 |
| 94 | 90 | 88 | 84 | 79 | 96 |
Outlet Sound Power, LWo [dB ref
RPM | % WOV | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | LWoA | |
| 100 | 85 | 76 | 73 | 74 | 71 | 61 | 52 | 46 | 75 | |
350 | 80 | 83 | 75 | 72 | 72 | 68 | 58 | 50 | 42 | 73 | |
60 | 83 | 74 | 70 | 71 | 68 | 57 | 50 | 43 | 72 | ||
| |||||||||||
| 50 | 82 | 74 | 68 | 70 | 68 | 57 | 50 | 43 | 72 | |
| 100 | 85 | 84 | 81 | 81 | 78 | 75 | 62 | 54 | 83 | |
500 | 80 | 85 | 83 | 80 | 80 | 75 | 68 | 60 | 51 | 81 | |
60 | 85 | 82 | 77 | 78 | 75 | 67 | 59 | 52 | 79 | ||
| |||||||||||
| 50 | 85 | 82 | 76 | 77 | 74 | 66 | 59 | 53 | 78 | |
| 100 | 88 | 91 | 90 | 90 | 86 | 84 | 74 | 65 | 92 | |
700 | 80 | 85 | 89 | 87 | 88 | 82 | 77 | 69 | 61 | 88 | |
60 | 85 | 86 | 84 | 85 | 80 | 75 | 68 | 62 | 85 | ||
| |||||||||||
| 50 | 87 | 88 | 84 | 84 | 79 | 74 | 67 | 62 | 85 | |
| 100 | 92 | 95 | 98 | 99 | 94 | 93 | 91 | 76 | 101 | |
1000 | 80 | 89 | 92 | 96 | 98 | 92 | 88 | 81 | 73 | 98 | |
60 | 91 | 91 | 93 | 94 | 89 | 85 | 79 | 73 | 95 | ||
| |||||||||||
| 50 | 94 | 93 | 94 | 94 | 88 | 84 | 78 | 74 | 94 | |
| 100 | 97 | 99 | 104 | 105 | 100 | 97 | 99 | 85 | 107 | |
1251 | 80 | 94 | 95 | 101 | 104 | 97 | 94 | 89 | 80 | 104 | |
60 | 97 | 97 | 98 | 100 | 94 | 91 | 86 | 79 | 101 | ||
| |||||||||||
| 50 | 99 | 99 | 100 | 100 | 94 | 90 | 85 | 80 | 100 |
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).
The sound power level ratings shown are in decibels, referred to
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