Inlet vanes are often used for capacity modulation. They give accurate modulation and power savings over other styles of dampers at reduced air flow (Centrifugal Power Foil Fan).

When an inlet vane is partially closed, each blade directs the air into the wheel in the direction of rotation and so the air is prespun. This brings about a reduction in the CFM, static pressure and BHP. The amount of BHP savings at reduced CFM is determined by the type of system and type of Fan-Vane combination. Centrifugal Power Foil Fan.

NIS-CO Centrifugal Power Foil Fan Blowers realizes the importance of providing accurate and complete engineering information

Centrifugal Power Foil Fan - Powerfoil Nested Type Inlet Vane Corrections

The nested inlet vane corrections for all sizes are with the vanes fully open.

Due to additional losses at the fan inlet caused by the installation of variable inlet vanes, a slight correction above catalog RPM and BHP ratings is necessary to reach design performance. Centrifugal Power Foil Fan

These correction factors are as follows: Fan Size AF270 thru AF330 RPM x 1.05

BHP x 1.145 AF365 thru AF490 RPM x 1.035

BHP x 1.09

regarding inlet vanes. This comprehensive engineering data is a direct result of information derived from tests performed in our laboratory. (Centrifugal Power Foil Fan)

In selecting vanes caution must be used below 50% of the design CFM since there is a possibility that fan pulsation may occur.

DWDI fan

Motor Positions for Belt Drive Centrifugal Fans

Location of motor is determined by facing the drive side of fan and designating the motor position by letters W, X, Y, or Z as the case may be.

Standards adopted for spark-resistant fans AMCA Standard 99-0401-86

Example: AF365SW Class I is to operate at 16,852 CFM at 2" S.P.

CENTRIFUGAL POWER FOIL FAN TABLES

Step 1: Through interpolation establish the design RPM and BHP of the unit from the performance tables. For this unit it would be 865 RPM and 8.01 BHP.
Step 2: Multiply design RPM and BHP by the following factors to determine the required RPM and BHP for a fan with nested type inlet vanes.

Example: 8.65 (design RPM) x 1.035 = 895 (corrected RPM) 8.01 (design BHP) x 1.09 = 8.73 (corrected BHP)

CENTRIFUGAL POWER FOIL FAN TABLES

Final Selection: AF365SW, Class I to deliver 16,852 CFM at 2" S.P. with nested inlet vanes requires 895 RPM and 8.73 BHP.

Caution: Check RPM and BHP to insure they do not exceed selected blower class or motor horsepower.

Spark Resistant — Type A:

AMCA Standards require that all parts of the fan in contact with the air or gas being handled shall be made of non-ferrous material.

Spark Resistant — Type B:

AMCA Standards require the fan to have the wheel and ring about the opening through which the shaft passes of non-ferrous material. Ferrous hubs, shafts and hardware are permitted. Fans for this condition are furnished with a non-ferrous wheel (except hub and hardware) and a non-ferrous shaft seal around the shaft opening. A variety of construction materials are available for the Canada Blower fan wheel, airstream accessories, or the entire fan.

Spark Resistant — Type C:

AMCA standards require the fan to be so constructed that a shift of the wheel or shaft will not permit two ferrous parts of the fan to rub or strike. Fans for this condition will be furnished with a non-ferrous inlet cone and rubbing plate around the shaft opening.

Note: For all type spark resistant fans, the user shall electrically ground all fan parts. Either A or B construction conforms to requirements of National Board of Fire Underwriters Pamphlet No. 91 for fans handling flammable vapors. Bearings shall not be placed in the air or gas stream. A non-ferrous material shall be any material with less than 5% iron or any other material with demonstrated ability to be spark resistant.

The use of these constructions in no way implies a guarantee of safety for any level of spark resistance. Spark resistant construction does not protect against ignition of explosive gases caused by catastrophic failure or from any airstream material that may be present in a system.

Spark-proof construction available for SWSI units in arrangements 1, 2, 8, 9, and 10 only.

Reprinted from AMCA publication 99 with the expressed written permission from the Air Movement and Control Association International, Inc., 30 West University Drive, Arlington Heights, IL 60004-1893.

Powerfoil blowers using newly designed wheels with airfoil section blades have been developed to produce ultra-high total and static efficiencies over a broad performance range with extremely low sound generation. Hollow heavy gauge airfoil section blades, aerodynamically engineered, are die-formed in one piece and welded at the trailing hydraulic riveters. Metal gauges of all components are increased for higher construction classes and blades are internally reinforced as required (shown below). Canada Powerfoil wheel represents the ultimate in centrifugal wheel construction and is designed for optimum trouble-free performance and longevity.

Static and Dynamic Balancing

Complete wheel assemblies of all sizes are statically and dynamically balanced on electronically controlled balancing machines. The necessary weights are arc welded into place so that the wheel will always stay in balance.

After complete blowers are assembled, they are all given a running-in

CENTRIFUGAL POWER FOIL FAN TABLES

FAN SIZE CLASS 1 WEIGHT WR2 CLASS 2 WEIGHT WR2 SWSI WEIGHT WR2 CLASS 3 WEIGHT WR2 CLASS 1 DWDI WEIGHT WR2 CLASS 2 WEIGHT WR2 CLASS 3
AF270 77 48 78 48 92 55 133 76 132 76 168 92
AF300 99 72 99 72 109 81 156 112 154 112 193 134
AF330 133 121 133 121 183 146 200 181 218 184 299 231
AF365 159 181 161 182 221 223 238 268 257 272 356 351
AF402 204 285 204 285 262 330 331 440 386 461 545 590
AF445 247 427 282 437 315 500 395 654 447 676 627 862
AF490 363 776 400 789 438 881 593 1131 587 1132 779 1381

CENTRIFUGAL POWER FOIL FAN TABLES

fanTwo separate horsepower requirements must be considered when selecting the motor for a fan:
    1. The brake horsepower (BHP) required to turn the fan at the proper speed (RPM) to deliver the design volume (CFM) at the necessary static pressure (SP).
  1. The minimum motor horsepower required to bring the fan to the necessary RPM, by overcoming the inertia load of the wheel and shaft.

The inertia load of the wheel and shaft is measured as moment of inertia (WR2) in lbs. ft.2 units. This value is used to determine the capability of a motor to bring the load up to the required speed before the motor overheats.

Fans selected in the lower static pressures, may specify motors, which are not large enough to start the fan without overheating the motor or the electrical system. Generally, smaller fans do not present a starting problem.

Whenever devices such as inlet vanes and outlet dampers are used and kept closed until the fan has reached operating speed, both motor heating and starting load are decreased.

Under certain operating conditions it may be possible to use motors smaller than the minimum horsepower recommendations shown on the performance pages, by checking with the motor supplier

CAUTION:

The minimum motor starting requirements shown on the performance pages are for belt driven units.

Motor manufacturers differ on the WR2F capabilities of their motors, an average value for standard design B, open drip-proof, 1750 rpm motors was used to determine the minimum motor hp. WRF2 referred to the motor is

RPM FAN 2

( ) X WR2FAN X 1.1

RPM MOTOR

Direct driven units generally will require larger motors to accelerate the fan inertia load to the designed speed.

Procedure for using correction factors

The density of air at 70 deg. F. and 29.92" barometric pressure (sea level) is .075lbs./cu.ft. and all fan performance tables shown herein have been developed at this standard density. When either temperature or barometric pressure deviates from the above, a change in density obviously results, thus changing fan BHP requirements (system capacity and pressure requirements being fixed by design conditions).

In order to use standard performance tables to determine correct BHP when installation environment involves either or both non-standard temperature and barometric pressure, the following density correction factor table has been developed through applicable physical laws.

Example: Use of correction factor table. Requirement – A blower to deliver

13022 CFM at 1.5" S.P. at 350 deg. F. and 7000 ft. above sea level. Data Needed to Fill Requirement: Fan

size, BHP and RPM.

  1. From table below correction factor for 350 deg. F. and 7000 ft. above sea level = 2.00.
    1. 1.5" S.P. (design S.P.) x 2.00 = 3"
    2. S.P. (S.P. corrected to 70 degrees at sea level).
    1. Select from performance table a blower to deliver 13022 CFM at 3"
    2. S.P. Best selection indicates a No. AF365 SW Powerfoil Blower at 834 RPM and 7.52 BHP .
  2. Correct BHP by dividing 7.52 BHP by 2. This equals 3.76 BH (correct for 350 deg. F. at 7000 ft.altitude).

Recommended Selection: NIS-CO Centrifugal Power Foil Fan Blowers Powerfoil Size AF365SW Blower: capacity 13022 CFM, S.P. 1.5", temperature 350 deg. F. altitude 7000 ft., 834 RPM, 3.76 BHP.

Note: Caution should be exercised in selecting the motor sizes for operating fans handling high temperature air. If the operation of the system is such that there is a build-up period starting with lower temperature air, this will result in the fan requiring more horsepower during that period and the motor size should be selected for the most severe condition. Centrifugal Power Foil Fan.

The following correction factor table is shaded to show standard table altitude (0 ft.) and temperature (70°). Where only one non-standard condition exists, read the other condition as standard.

Altitude And Temperature Correct ION Factor Table

AIR TEMP. DEG. F. 0 500 1000 1500 2000 2500 3000 ALTITUDE IN FEET ABOVE SEA LEVEL 3500 4000 4500 5000 5500 6000 6500 7000 7500 8000 8500 9000 10000
0° 0.87 .89 .91 .92 .94 .96 .98 .99 1.01 1.03 1.05 1.06 1.09 1.10 1.13 1.15 1.17 1.19 1.22 1.26
40° 0.94 .96 .98 1.00 1.02 1.04 1.06 1.08 1.10 1.12 1.14 1.16 1.19 1.21 1.23 1.26 1.28 1.30 1.32 1.36
70° 1.00 1.02 1.04 1.06 1.08 1.10 1.12 1.14 1.16 1.18 1.20 1.22 1.25 1.27 1.30 1.32 1.35 1.37 1.40 1.45
80° 1.02 1.04 1.06 1.08 1.10 1.12 1.14 1.16 1.19 1.21 1.23 1.26 1.28 1.30 1.33 1.36 1.38 1.41 1.43 1.48
100° 1.06 1.08 1.10 1.12 1.14 1.16 1.19 1.21 1.23 1.25 1.28 1.30 1.33 1.35 1.38 1.41 1.43 1.46 1.48 1.54
120° 1.09 1.12 1.14 1.16 1.18 1.20 1.23 1.25 1.28 1.30 1.32 1.35 1.38 1.40 1.43 1.46 1.48 1.51 1.53 1.58
140° 1.13 1.15 1.18 1.20 1.22 1.25 1.27 1.29 1.32 1.34 1.37 1.40 1.42 1.45 1.48 1.51 1.54 1.57 1.58 1.65
160° 1.17 1.19 1.22 1.24 1.26 1.29 1.31 1.34 1.36 1.39 1.42 1.44 1.47 1.50 1.53 1.56 1.59 1.62 1.64 1.70
180° 1.21 1.23 1.26 1.28 1.30 1.33 1.36 1.38 1.41 1.43 1.46 1.49 1.52 1.55 1.58 1.61 1.64 1.67 1.70 1.75
200° 1.25 1.27 1.29 1.32 1.34 1.37 1.40 1.42 1.45 1.48 1.51 1.54 1.57 1.60 1.63 1.66 1.69 1.72 1.75 1.81
250° 1.34 1.36 1.39 1.42 1.45 1.47 1.50 1.53 1.56 1.59 1.62 1.65 1.68 1.71 1.74 1.78 1.82 1.85 1.88 1.94
300° 1.43 1.46 1.49 1.52 1.55 1.58 1.61 1.64 1.67 1.70 1.74 1.77 1.80 1.84 1.87 1.91 1.94 1.98 2.00 2.08
350° 1.53 1.56 1.59 1.62 1.65 1.68 1.72 1.75 1.78 1.81 1.85 1.88 1.92 1.96 2.00 2.04 2.07 2.11 2.14 2.22
400° 1.62 1.65 1.69 1.72 1.75 1.79 1.82 1.85 1.89 1.93 1.96 2.00 2.04 2.08 2.12 2.16 2.20 2.25 2.27 2.35
450° 1.72 1.75 1.79 1.82 1.86 1.89 1.93 1.96 2.00 2.04 2.08 2.12 2.16 2.20 2.24 2.29 2.33 2.38 2.41 2.50
500° 1.81 1.85 1.88 1.92 1.96 1.99 2.03 2.07 2.11 2.15 2.19 2.23 2.28 2.32 2.36 2.41 2.46 2.51 2.54 2.62
550° 1.91 1.94 1.98 2.02 2.06 2.10 2.14 2.18 2.22 2.26 2.30 2.35 2.40 2.44 2.49 2.54 2.58 2.63 2.68 2.77
600° 2.00 2.04 2.08 2.12 2.16 2.20 2.24 2.29 2.33 2.38 2.42 2.47 2.50 2.56 2.61 2.66 2.71 2.77 2.80 2.90
650° 2.10 2.14 2.18 2.22 2.26 2.31 2.35 2.40 2.44 2.49 2.54 2.58 2.63 2.68 2.74 2.79 2.84 2.90 2.94 3.04
700° 2.19 2.23 2.27 2.32 2.36 2.41 2.46 2.50 2.55 2.60 2.65 2.70 2.75 2.80 2.86 2.91 2.97 3.03 3.06 3.18
750° 2.28 2.33 2.37 2.42 2.47 2.51 2.56 2.61 2.66 2.71 2.76 2.81 2.87 2.92 2.98 3.04 3.10 3.16 3.19 3.31
800° 2.38 2.43 2.48 2.52 2.57 2.62 2.66 2.72 2.76 2.81 2.86 2.90 2.98 3.02 3.10 3.14 3.21 3.26 3.33 3.45
850° 2.47 2.52 2.57 2.62 2.67 2.72 2.76 2.82 2.87 2.92 2.97 3.02 3.09 3.14 3.21 3.26 3.33 3.38 3.46 3.58
900° 2.57 2.62 2.67 2.72 2.76 2.83 2.88 2.93 2.98 3.03 3.08 3.14 3.21 3.26 3.34 3.39 3.47 3.52 3.60 3.73
950° 2.66 2.72 2.77 2.82 2.87 2.92 2.98 3.03 3.08 3.14 3.19 3.24 3.32 3.38 3.46 3.51 3.58 3.64 3.72 3.86
1000° 2.76 2.82 2.87 2.92 2.98 3.04 3.09 3.14 3.20 3.26 3.31 3.37 3.45 3.50 3.59 3.64 3.72 3.78 3.86 4.00
TEMPERATURE OPERATING LIMITS TEMPERATURE RPM DERATING FACTORS IN PERCENT:
STEEL WHEEL ALUMINUM WHEEL
300°F 100% 301-400°F 96% 401-500°F 92% 501-600°F 85% 150°F 100% 151-200°F 95% 201-250°F 80%

Better Products by Design with Quality in Every Product

Performance Engineered Fan Arrangements,

blower ventilator

RPM 3

powerfoil fanTIP SPEED (FPM) = 7.069 x RPM OUTLET 4.19 Sq. Ft. Inside MAX. HP = 3.15{29" x 211/4" Outside (1000 )

WHEEL DIAMETER = 27" INLET 4.430 Sq. Ft. Inside MAX. RPM{ 29" Dia. Outside CL.1 1453

CL.2 1893

CL.3 2389

VOL. CFM OUTLET VEL. FPM .25 S.P. .375 S.P. .5 S.P. .625 S.P. .75 S.P. .875 S.P. 1 S.P. 1.25 S.P. 1.5 S.P. 1.75 S.P.
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
3352 3771 4190 800 900 1000 412 447 482 0.21 0.26 0.32 445 478 511 0.28 0.33 0.40 478 507 539 0.34 0.41 0.48 511 536 565 0.41 0.48 0.57 544 565 591 0.49 0.56 0.65 578 595 617 0.58 0.65 0.74 613 624 644 0.67 0.74 0.83 — 685 697 — 0.94 1.02 — — 752 — — 1.25 — — — — — —
4609 5028 5447 1100 1200 1300 519 555 592 0.38 0.46 0.55 546 582 618 0.47 0.56 0.65 572 606 641 0.56 0.66 0.76 596 629 663 0.66 0.76 0.87 620 652 684 0.75 0.86 0.98 644 674 705 0.84 0.96 1.09 668 695 725 0.94 1.06 1.19 716 739 766 1.13 1.26 1.41 764 783 806 1.35 1.48 1.64 814 828 847 1.60 1.72 1.87
5866 6285 6704 1400 1500 1600 630 668 706 0.64 0.75 0.88 654 691 728 0.76 0.88 1.01 677 713 750 0.88 1.01 1.15 698 734 769 0.99 1.13 1.28 718 753 788 1.11 1.25 1.41 738 772 806 1.23 1.38 1.54 757 790 824 1.34 1.50 1.68 795 826 858 1.58 1.75 1.94 832 861 891 1.81 2.00 2.21 870 895 924 2.06 2.26 2.48
7123 7542 7961 1700 1800 1900 745 784 823 1.02 1.18 1.35 766 804 842 1.16 1.32 1.50 786 823 861 1.30 1.47 1.66 806 842 879 1.44 1.62 1.82 824 860 896 1.59 1.77 1.98 841 877 913 1.73 1.92 2.14 858 893 929 1.87 2.07 2.29 891 925 959 2.15 2.37 2.61 922 955 989 2.43 2.67 2.92 954 985 1017 2.72 2.97 3.24
8380 9218 10056 2000 2200 2400 862 940 1019 1.54 1.97 2.48 880 958 1036 1.70 2.15 2.68 898 975 1052 1.86 2.33 2.88 916 991 1067 2.03 2.51 3.07 933 1007 1082 2.20 2.69 3.27 949 1022 1096 2.36 2.88 3.47 965 1037 1110 2.53 3.06 3.67 994 1066 1138 2.86 3.43 4.07 1023 1093 1164 3.19 3.79 4.47 1050 1118 1188 3.52 4.16 4.87
10894 11732 12570 2600 2800 3000 1098 1178 1258 3.07 3.77 4.56 1115 1193 1272 3.30 4.00 4.81 1130 1208 1286 3.51 4.24 5.07 1144 1221 1299 3.72 4.47 5.32 1157 1234 1312 3.93 4.69 5.56 1171 1247 1324 4.14 4.92 5.80 1185 1260 1336 4.36 5.15 6.04 1211 1285 1359 4.80 5.62 6.54 1236 1309 1382 5.23 6.09 7.04 1260 1332 1405 5.66 6.55 7.54
13408 14246 3200 3400 1338 1419 5.47 6.48 1351 1431 5.72 6.76 1365 1443 6.00 7.04 1377 1456 6.27 7.34 1390 1468 6.53 7.62 1401 1479 6.79 7.90 1412 1490 7.04 8.17 1435 1511 7.57 8.71 1457 1532 8.10 9.27 1478 1552 8.63 9.84
VOL. CFM OUTLET VEL. FPM 2 S.P. 2.5 S.P. 3 S.P. 3.5 S.P. 4 S.P. 4.5 S.P. 5 S.P. 5.5 S.P. 6 S.P. 6.5 S.P.
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
5447 5866 6285 1300 1400 1500 888 907 930 2.13 2.31 2.52 971 984 1001 2.70 2.87 3.07 1062 1073 — 3.51 3.70 — 1146 — — 4.41 — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — —
6704 7123 7542 1600 1700 1800 956 984 1014 2.75 3.00 3.27 1022 1046 1072 3.31 3.58 3.88 1088 1108 1131 3.93 4.20 4.51 1156 1171 1189 4.61 4.87 5.17 1225 1235 1249 5.38 5.61 5.89 1300 1309 — 6.42 6.68 — 1371 — — 7.54 — — 1433 — — 8.47 — — — — — — — — — — — — — —
7961 8380 9218 1900 2000 2200 1045 1077 1144 3.55 3.86 4.52 1100 1130 1193 4.19 4.53 5.25 1155 1182 1241 4.84 5.20 5.99 1211 1235 1288 5.52 5.89 6.73 1267 1287 1336 6.23 6.61 7.48 1323 1341 1384 7.00 7.37 8.26 1380 1394 1432 7.83 8.19 9.06 1438 1449 1480 8.74 9.07 9.91 1497 1504 1529 9.71 10.01 10.81 1559 1578 — 11.01 11.76 —
10056 10894 11732 2400 2600 2800 1212 1283 1354 5.26 6.10 7.02 1258 1327 1396 6.06 6.96 7.95 1303 1369 1437 6.86 7.82 8.87 1347 1410 1476 7.66 8.68 9.80 1391 1451 1514 8.47 9.55 10.74 1435 1491 1552 9.28 10.42 11.67 1478 1531 1589 10.11 11.30 12.61 1522 1572 1627 10.97 12.19 13.55 1566 1612 1664 11.85 13.10 14.50 1610 1652 1702 12.78 14.03 15.46
12570 13408 14246 3000 3200 3400 1426 1499 1573 8.04 9.17 10.41 1467 1539 1611 9.04 10.24 11.55 1506 1576 1648 10.03 11.30 12.68 1543 1613 1683 11.03 12.36 13.81 1580 1648 1717 12.02 13.42 14.93 1616 1682 1749 13.02 14.48 16.06 1651 1715 1782 14.02 15.55 17.19 1686 1749 1813 15.02 16.61 18.32 1721 1782 1845 16.03 17.68 19.45 1756 1814 1876 17.04 18.75 20.59
15084 15922 16760 3600 3800 4000 1647 1721 1797 11.78 13.27 14.90 1684 1758 1832 12.98 14.54 16.24 1720 1792 1866 14.19 15.82 17.58 1754 1826 1898 15.38 17.08 18.92 1787 1858 1929 16.57 18.34 20.25 1819 1889 1960 17.76 19.60 21.58 1850 1919 1989 18.96 20.86 22.90 1880 1948 2017 20.15 22.12 24.22 1910 1977 2046 21.35 23.38 25.55 1940 2006 2073 22.55 24.64 26.87
17598 18436 4200 4400 1873 1949 16.68 18.62 1906 1982 18.07 20.07 1939 2013 19.48 21.54 1971 2044 20.89 23.01 2001 2074 22.29 24.49 2031 2103 23.69 25.96 2060 2131 25.08 27.42 2088 2158 26.47 28.88 2115 2185 27.86 30.33 2142 2211 29.25 31.79
VOL. CFM OUTLET VEL. FPM 7 S.P. 7.5 S.P. 8 S.P. 8.5 S.P. 9 S.P. 10 S.P. 11 S.P. 12 S.P. 13 S.P. 14 S.P.
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
100561089411732 2400 2600 2800 1655 1693 1739 13.75 14.99 16.44 1700 1734 1777 14.7715.9917.44 1746 1775 1814 15.8417.0218.47 1791 1817 1852 16.9618.1019.54 1838 1858 1890 18.14 19.2320.63 1943 1967 — 21.63 22.95 — 2029 2045 — 24.23 25.44 — 2124 — — 28.11 — — 2204 — — 30.98 — — — — — — — —
125701340814246 3000 3200 3400 1791 1847 1907 18.06 19.83 21.72 1826 1880 1938 19.1020.9122.87 1861 1913 1969 20.1522.0024.01 1896 1945 2000 21.22 23.1025.16 1931 1978 2030 22.31 24.22 26.32 2002 2044 2092 24.59 26.52 28.67 2073 2110 2154 27.01 28.91 31.09 2145 2177 2216 29.59 31.43 33.60 2219 2244 2279 32.33 34.09 36.22 2293 2312 2342 35.25 36.90 38.96
150841592216760 3600 3800 4000 1970 2034 2100 23.75 25.90 28.20 1999 2062 2127 24.9527.1729.53 2028 2090 2154 26.1628.4430.86 2057 2118 2181 27.3629.7132.20 2086 2146 2207 28.5830.9833.53 2144 2201 2260 31.02 33.54 36.21 2203 2256 2312 33.50 36.11 38.90 2261 2311 2365 36.04 38.72 41.61 2320 2366 2417 38.66 41.39 44.35 2379 2422 2469 41.38 44.12 47.13
175981843619274 4200 4400 4600 2168 2237 2307 30.64 33.24 36.00 2194 2262 2331 32.0434.7037.53 2220 2287 2356 33.4336.1639.05 2246 2312 2380 34.8337.6240.57 2271 2337 2403 36.2339.0842.10 2322 2385 2450 39.04 42.02 45.16 2372 2433 2497 41.85 44.96 48.23 2422 2481 2543 44.67 47.90 51.30 2471 2529 2589 47.51 50.86 54.38 2521 2576 2634 50.38 53.83 57.47
2011220950 4800 5000 2377 2448 38.93 42.04 2401 2472 40.5243.69 2425 2495 42.1145.34 2448 2518 43.7047.00 2471 2540 45.2948.65 2517 2585 48.47 51.96 2562 2628 51.67 55.28 2606 2671 54.87 58.61 2650 2714 58.07 61.95 2694 2756 61.28 65.28
2178822626 5200 5400 2519 2591 45.32 48.78 2543 2614 47.0450.57 2565 2636 48.7652.36 2588 2658 50.4854.15 2610 2680 52.2055.94 2653 2723 55.64 59.51 2696 2764 59.09 63.08 2738 2805 62.54 66.66 2779 — 66.00 — 2820 — 69.47 —
airfoil wheelbackward inclined wheel

Arrangement #1 Arrangement #3

Arrangement #1 & #3 — SWSI — Class I & II

backward curved wheel

RPM 3

BC fan wheelTIP SPEED (FPM) = 7.854 x RPM OUTLET 5.17 Sq. Ft. Inside MAX. HP = 5.33{321/4" x 233/8" Outside (1000 )

WHEEL DIAMETER = 30" INLET 5.469 Sq. Ft. Inside MAX. RPM{ 321/4" Dia. Outside CL.1 1308

CL.2 1703

CL.3 2150

VOL. CFM OUTLET VEL. FPM .25 S.P. .375 S.P. .5 S.P. .625 S.P. .75 S.P. .875 S.P. 1 S.P. 1.25 S.P. 1.5 S.P. 1.75 S.P.
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
4136 4653 5170 800 900 1000 371 402 434 0.26 0.32 0.39 401 430 460 0.34 0.41 0.49 430 456 485 0.42 0.50 0.60 460 483 508 0.51 0.60 0.70 490 509 532 0.61 0.70 0.80 520 535 556 0.71 0.80 0.91 551 562 579 0.83 0.91 1.02 617 627 — 1.16 1.26 — 677 — — 1.54 — — — — — — — —
5687 6204 6721 1100 1200 1300 467 500 533 0.47 0.57 0.67 492 524 556 0.59 0.69 0.81 515 546 577 0.70 0.81 0.94 537 566 597 0.81 0.94 1.07 558 586 616 0.92 1.06 1.21 580 606 635 1.04 1.18 1.34 601 626 653 1.15 1.31 1.47 644 665 689 1.40 1.56 1.74 688 705 725 1.67 1.83 2.02 733 745 762 1.97 2.12 2.31
7238 7755 8272 1400 1500 1600 567 601 636 0.79 0.93 1.09 589 622 656 0.94 1.09 1.25 609 642 675 1.08 1.24 1.42 628 660 692 1.23 1.40 1.58 646 678 709 1.37 1.55 1.74 664 695 726 1.51 1.70 1.91 681 711 741 1.66 1.86 2.07 715 743 772 1.95 2.16 2.40 749 775 802 2.24 2.47 2.73 783 806 831 2.54 2.79 3.06
8789 9306 9823 1700 1800 1900 670 705 740 1.26 1.45 1.67 689 723 758 1.43 1.63 1.85 708 741 775 1.61 1.82 2.05 725 758 791 1.78 2.00 2.24 742 774 807 1.96 2.19 2.44 757 789 822 2.13 2.37 2.64 772 804 836 2.30 2.56 2.83 802 832 863 2.65 2.93 3.22 830 860 890 3.00 3.29 3.61 858 886 915 3.35 3.66 4.00
10340 11374 12408 2000 2200 2400 776 846 917 1.90 2.43 3.06 792 862 933 2.10 2.66 3.31 809 877 947 2.30 2.87 3.55 824 892 960 2.51 3.10 3.79 839 906 973 2.71 3.32 4.03 854 920 987 2.92 3.55 4.28 868 933 999 3.12 3.78 4.53 895 959 1024 3.53 4.23 5.02 921 983 1047 3.94 4.68 5.52 945 1007 1070 4.35 5.13 6.01
13442 14476 15510 2600 2800 3000 988 1060 1132 3.79 4.65 5.63 1003 1074 1145 4.07 4.94 5.94 1017 1087 1157 4.34 5.24 6.26 1029 1099 1169 4.59 5.51 6.56 1042 1111 1180 4.85 5.79 6.86 1054 1122 1191 5.12 6.07 7.16 1066 1134 1202 5.38 6.36 7.46 1090 1156 1223 5.92 6.93 8.07 1112 1178 1244 6.46 7.51 8.69 1134 1199 1264 6.99 8.09 9.31
16544 17578 3200 3400 1205 1277 6.75 8.00 1216 1288 7.07 8.34 1228 1299 7.41 8.69 1240 1310 7.74 9.06 1251 1321 8.06 9.41 1261 1331 8.38 9.75 1271 1341 8.70 10.08 1291 1360 9.34 10.76 1311 1379 10.00 11.45 1330 1397 10.66 12.15
VOL. CFM VEL. FPM OUTLET 2 S.P. 2.5 S.P. 3 S.P. 3.5 S.P. 4 S.P. 4.5 S.P. 5 S.P. 5.5 S.P. 6 S.P. 6.5 S.P.
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
672172387755 1300 1400 1500 799 817 837 2.63 2.85 3.11 874 885 901 3.34 3.54 3.80 956 965 — 4.34 4.57 — 1032 — — 5.44 — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — —
827287899306 1600 1700 1800 861 886 913 3.40 3.71 4.04 920 941 965 4.09 4.42 4.79 980 997 1017 4.85 5.18 5.56 1040 1054 1070 5.69 6.01 6.39 1103 1111 1124 6.64 6.92 7.28 1170 1178 — 7.93 8.25 — 1233 — — 9.31 — — 1290 — — 10.46 — — — — — — — — — — — — — —
9823 10340 11374 1900 2000 2200 941 969 1029 4.39 4.76 5.58 990 1017 1073 5.18 5.59 6.48 1040 1064 1117 5.98 6.42 7.39 1090 1111 1159 6.81 7.27 8.31 1140 1159 1202 7.69 8.16 9.24 1191 1206 1245 8.64 9.10 10.19 1242 1255 1288 9.67 10.11 11.19 1295 1304 1332 10.79 11.19 12.24 1348 1353 1376 11.98 12.35 13.34 1404 1420 — 13.59 14.52 —
12408 13442 14476 2400 2600 2800 1091 1154 1219 6.50 7.52 8.67 1133 1194 1257 7.488.599.81 1173 1232 1293 8.479.6510.95 1212 1269 1328 9.4610.7212.10 1252 1306 1363 10.4511.7913.25 1291 1342 1397 11.46 12.87 14.41 1330 1328 1430 12.49 13.95 15.57 1370 1415 1464 13.54 15.05 16.73 1409 1451 1498 14.64 16.17 17.90 1449 1487 1531 15.78 17.32 19.09
15510 16544 17578 3000 3200 3400 1284 1349 1415 9.93 11.32 12.86 1320 1385 1450 11.16 12.64 14.26 1355 1419 1483 12.39 13.95 15.66 1389 1451 1515 13.61 15.26 17.05 1422 1483 1545 14.84 16.57 18.44 1454 1514 1575 16.07 17.88 19.83 1486 1544 1604 17.31 19.19 21.22 1518 1574 1632 18.55 20.51 22.62 1549 1603 1660 19.79 21.83 24.02 1580 1633 1688 21.04 23.15 25.42
18612 19646 20680 3600 3800 4000 1482 1549 1617 14.54 16.38 18.40 1516 1582 1649 16.03 17.95 20.04 1548 1613 1679 17.51 19.53 21.70 1579 1643 1708 18.99 21.09 23.35 1608 1672 1736 20.46 22.65 25.00 1637 1700 1764 21.93 24.20 26.64 1665 1727 1790 23.40 25.75 28.27 1692 1753 1816 24.88 27.30 29.90 1719 1780 1841 26.35 28.86 31.54 1746 1805 1866 27.84 30.42 33.17
21714 22748 4200 4400 1685 1754 20.59 22.99 1716 1783 22.31 24.77 1745 1812 24.05 26.59 1774 1840 25.79 28.41 1801 1867 27.52 30.23 1828 1893 29.25 32.05 1854 1918 30.97 33.85 1879 1943 32.68 35.65 1903 1967 34.40 37.45 1928 1990 36.11 39.24
VOL. CFM OUTLET VEL. FPM 7 S.P. 7.5 S.P. 8 S.P. 8.5 S.P. 9 S.P. 10 S.P. 11 S.P. 12 S.P. 13 S.P. 14 S.P.
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
12408 13442 14476 2400 2600 2800 1490 1524 1565 16.98 18.51 20.30 1530 1561 1599 18.23 19.74 21.54 1571 1598 1633 19.55 21.02 22.81 1612 1635 1667 20.94 22.35 24.12 1654 1672 1701 22.40 23.74 25.48 1748 1771 — 26.70 28.33 — 1826 1841 — 29.92 31.41 — 1912 — — 34.71 — — 1984 — — 38.25 — — — — — — — —
15510 16544 17578 3000 3200 3400 1612 1663 1716 22.30 24.48 26.82 1643 1692 1744 23.58 25.82 28.23 1675 1721 1772 24.87 27.16 29.64 1706 1751 1800 26.20 28.52 31.06 1738 1780 1827 27.55 29.90 32.49 1802 1840 1883 30.36 32.74 35.40 1866 1899 1938 33.35 35.69 38.38 1931 1959 1994 36.53 38.80 41.48 1997 2020 2051 39.91 42.09 44.71 2063 2081 2107 43.52 45.56 48.10
18612 19646 20680 3600 3800 4000 1773 1831 1890 29.32 31.98 34.81 1799 1856 1915 30.80 33.54 36.46 1825 1881 1939 32.29 35.11 38.10 1852 1906 1963 33.78 36.68 39.75 1878 1931 1987 35.28 38.25 41.40 1930 1981 2034 38.30 41.40 44.70 1982 2030 2081 41.36 44.58 48.02 2035 2080 2128 44.50 47.81 51.37 2088 2130 2175 47.73 51.10 54.75 2141 2179 2223 51.09 54.47 58.19
21714 22748 23782 4200 4400 4600 1951 2013 2076 37.83 41.04 44.45 1975 2036 2098 39.55 42.84 46.33 1998 2059 2120 41.28 44.64 48.21 2021 2081 2142 43.00 46.45 50.09 2044 2103 2163 44.73 48.25 51.98 2089 2147 2205 48.19 51.87 55.75 2134 2190 2247 51.66 55.50 59.54 2179 2233 2289 55.15 59.14 63.33 2224 2276 2330 58.65 62.79 67.13 2269 2319 2371 62.19 66.45 70.94
24816 25850 4800 5000 2139 2203 48.07 51.90 2161 2224 50.03 53.94 2182 2245 51.99 55.98 2203 2266 53.95 58.02 2224 2286 55.91 60.06 2265 2326 59.84 64.15 2306 2365 63.79 68.25 2346 2404 67.74 72.36 2385 2443 71.69 76.48 2425 2481 75.66 80.60
26884 27918 5200 5400 2267 2332 55.95 60.22 2288 2353 58.07 62.44 2309 2373 60.20 64.65 2329 2393 62.32 66.85 2349 2412 64.44 69.06 2388 2450 68.69 73.47 2426 2488 72.95 77.88 2464 2525 77.21 82.30 2501 — 81.48 — 2538 — 85.76 —
airfoil fan

Arrangement #1 & #3 — SWSI — Class I & II

acoustafoil fan wheel

RPM 3

acoustafoil fan industrialTIP SPEED (FPM) = 8.639 x RPM OUTLET 6.26 Sq. Ft. Inside MAX. HP = 8.59{353/8" x 257/8" Outside (1000 )

WHEEL DIAMETER = 33" INLET 6.618 Sq. Ft. Inside MAX. RPM{ 353/8" Dia. Outside CL.1 1189

CL.2 1548

CL.3 1955

VOL. CFM OUTLET VEL. FPM .25 S.P. .375 S.P. .5 S.P. .625 S.P. .75 S.P. .875 S.P. 1 S.P. 1.25 S.P. 1.5 S.P. 1.75 S.P.
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
5008 5634 6260 800 900 1000 337 365 395 0.31 0.39 0.47 364 391 418 0.41 0.50 0.60 391 415 441 0.51 0.61 0.72 418 439 462 0.62 0.72 0.85 445 462 484 0.73 0.84 0.97 473 487 505 0.86 0.97 1.10 501 511 527 1.00 1.10 1.23 561 570 — 1.41 1.53 — 615 — — 1.87 — — — — — — — —
688675128138 1100 1200 1300 424 454 485 0.57 0.68 0.81 447 476 506 0.71 0.83 0.98 468 496 525 0.84 0.98 1.14 488 515 543 0.98 1.13 1.30 508 533 560 1.12 1.28 1.46 527 551 577 1.26 1.43 1.62 546 569 593 1.40 1.58 1.78 586 605 626 1.69 1.89 2.11 625 641 659 2.02 2.21 2.45 666 677 693 2.38 2.57 2.80
8764 9390 10016 1400 1500 1600 515 546 578 0.96 1.13 1.32 535 566 596 1.14 1.31 1.51 554 583 613 1.31 1.50 1.71 571 600 630 1.48 1.69 1.91 588 616 645 1.66 1.87 2.11 604 631 660 1.83 2.06 2.31 619 646 674 2.00 2.24 2.51 650 675 702 2.35 2.62 2.90 681 704 729 2.71 2.99 3.30 711 733 756 3.07 3.37 3.70
10642 11268 11894 1700 1800 1900 609 641 673 1.53 1.76 2.02 627 658 689 1.73 1.98 2.24 643 674 704 1.94 2.20 2.48 659 689 719 2.16 2.42 2.72 674 704 733 2.37 2.65 2.95 688 718 747 2.58 2.87 3.19 702 731 760 2.79 3.09 3.43 729 757 785 3.21 3.54 3.89 755 781 809 3.63 3.99 4.36 780 806 832 4.06 4.43 4.84
12520 13772 15024 2000 2200 2400 705 769 834 2.30 2.94 3.70 720 784 848 2.54 3.21 4.01 735 797 861 2.78 3.48 4.30 749 811 873 3.03 3.75 4.58 763 824 885 3.28 4.02 4.88 776 836 897 3.53 4.30 5.18 789 849 909 3.78 4.57 5.48 814 872 931 4.28 5.12 6.08 837 894 952 4.77 5.66 6.68 859 915 972 5.27 6.21 7.27
1627617528 18780 2600 2800 3000 898 964 1029 4.59 5.63 6.82 912 976 1041 4.93 5.98 7.18 924 988 1052 5.25 6.34 7.57 936 999 1063 5.56 6.67 7.94 947 1010 1073 5.87 7.01 8.30 958 1020 1083 6.19 7.35 8.66 969 1031 1093 6.51 7.69 9.02 991 1051 1112 7.17 8.39 9.76 1011 1071 1131 7.829.09 10.51 1031 1090 1149 8.46 9.79 11.27
2003221284 3200 3400 1095 1161 8.17 9.68 1105 1171 8.5510.10 1116 1181 8.9610.52 1127 1191 9.37 10.96 1137 1201 9.76 11.39 1146 1210 10.1411.80 1156 1219 10.5212.20 1174 1236 11.30 13.02 1192 1253 12.1013.85 1209 1270 12.90 14.70
VOL. CFM OUTLET VEL. FPM 2 S.P. 2.5 S.P. 3 S.P. 3.5 S.P. 4 S.P. 4.5 S.P. 5 S.P. 5.5 S.P. 6 S.P. 6.5 S.P.
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
813887649390 1300 1400 1500 726 742 761 3.18 3.45 3.76 795 805 819 4.04 4.29 4.59 869 878 — 5.25 5.52 — 938 — — 6.58 — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — —
100161064211268 1600 1700 1800 782 805 830 4.11 4.48 4.88 836 856 877 4.95 5.35 5.79 891 907 925 5.87 6.27 6.73 946 958 973 6.89 7.27 7.73 1002 1010 1022 8.03 8.38 8.81 1063 1071 — 9.59 9.98 — 1121 — — 11.27 — — 1173 — — 12.66 — — — — — — — — — — — — — —
11894 12520 13772 1900 2000 2200 855 881 936 5.31 5.76 6.75 900 925 976 6.26 6.76 7.85 945 967 1015 7.23 7.77 8.94 991 1010 1054 8.24 8.80 10.05 1036 1053 1093 9.31 9.88 11.18 1082 1097 1132 10.46 11.0212.33 1129 1141 1171 11.70 12.2313.54 1177 1185 1211 13.05 13.54 14.81 1225 1230 1251 14.50 14.9516.15 1276 1291 — 16.45 17.57 —
15024 16276 17528 2400 2600 2800 992 1049 1108 7.869.10 10.49 1030 1085 1142 9.0510.39 11.87 1066 1120 1175 10.2511.68 13.26 1102 1154 1207 11.44 12.97 14.64 1138 1187 1239 12.6514.27 16.04 1174 1220 1270 13.87 15.57 17.43 1209 1253 1300 15.11 16.88 18.83 1245 1286 1331 16.38 18.21 20.24 1281 1319 1362 17.71 19.57 21.66 1318 1352 1392 19.09 20.96 23.10
18780 20032 21284 3000 3200 3400 1167 1226 1287 12.02 13.70 15.56 1200 1259 1318 13.50 15.30 17.26 1232 1290 1348 14.99 16.88 18.95 1263 1319 1377 16.47 18.46 20.63 1293 1348 1405 17.96 20.04 22.31 1322 1376 1431 19.45 21.63 23.99 1351 1403 1458 20.95 23.22 25.68 1380 1431 1484 22.44 24.82 27.37 1408 1458 1509 23.95 26.41 29.06 1437 1485 1535 25.46 28.02 30.75
22536 23788 25040 3600 3800 4000 1347 1408 1470 17.59 19.82 22.26 1378 1438 1499 19.40 21.72 24.25 1407 1467 1526 21.19 23.63 26.26 1435 1494 1553 22.98 25.52 28.26 1462 1520 1579 24.76 27.40 30.25 1488 1545 1603 26.54 29.28 32.23 1513 1570 1627 28.32 31.16 34.21 1538 1594 1651 30.10 33.04 36.18 1563 1618 1674 31.89 34.92 38.16 1587 1641 1696 33.68 36.81 40.14
26292 27544 4200 4400 1532 1595 24.92 27.82 1560 1621 27.00 29.97 1587 1647 29.10 32.17 1613 1673 31.21 34.38 1638 1697 33.30 36.58 1662 1721 35.39 38.77 1685 1744 37.47 40.96 1708 1766 39.55 43.14 1730 1788 41.62 45.31 1752 1809 43.70 47.78
VOL. CFM VEL. FPM OUTLET 7 S.P. 7.5 S.P. 8 S.P. 8.5 S.P. 9 S.P. 10 S.P. 11 S.P. 12 S.P. 13 S.P. 14 S.P.
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
15024 16276 17528 2400 2600 2800 1354 1385 1423 20.54 22.39 24.56 1391 1419 1454 22.06 23.88 26.06 1428 1452 1485 23.66 25.43 27.60 1466 1486 1516 25.34 27.04 29.18 1504 1520 1547 27.10 28.73 30.82 1590 1610 — 32.31 34.28 — 1660 1673 — 36.20 38.00 — 1738 — — 42.00 — — 1803 — — 46.28 — — — — — — — —
18780 20032 21284 3000 3200 3400 1465 1511 1560 26.99 29.62 32.45 1494 1538 1586 28.5331.24 34.16 1523 1565 1611 30.1032.87 35.87 1551 1592 1636 31.70 34.51 37.58 1580 1619 1661 33.33 36.18 39.31 1638 1672 1712 36.74 39.61 42.83 1696 1727 1762 40.35 43.19 46.44 1755 1781 1813 44.20 46.95 50.19 1815 1836 1864 48.29 50.92 54.10 1876 1892 1916 52.66 55.12 58.20
22536 23788 25040 3600 3800 4000 1611 1664 1719 35.47 38.70 42.12 1635 1687 1741 37.27 40.59 44.11 1659 1710 1763 39.07 42.48 46.10 1683 1733 1784 40.88 44.38 48.10 1707 1755 1806 42.69 46.28 50.09 1755 1801 1849 46.34 50.10 54.09 1802 1846 1892 50.05 53.95 58.11 1850 1891 1935 53.84 57.85 62.15 1898 1936 1978 57.76 61.83 66.25 1946 1981 2020 61.82 65.91 70.41
26292 27544 28796 4200 4400 4600 1774 1830 1887 45.78 49.66 53.78 1795 1851 1907 47.86 51.84 56.06 1816 1871 1927 49.94 54.02 58.33 1837 1892 1947 52.03 56.20 60.61 1858 1912 1966 54.12 58.39 62.89 1899 1951 2005 58.31 62.77 67.46 1940 1991 2043 62.51 67.16 72.04 1981 2030 2081 66.73 71.56 76.63 2022 2069 2118 70.97 75.97 81.23 2063 2108 2155 75.25 80.41 85.84
30048 31300 4800 5000 1945 2003 58.16 62.79 1964 2022 60.53 65.27 1984 2041 62.90 67.74 2003 2060 65.28 70.21 2022 2078 67.65 72.68 2059 2115 72.41 77.63 2096 2150 77.18 82.59 2132 2186 81.96 87.56 2169 2221 86.75 92.54 2204 2255 91.55 97.52
32552 33804 5200 5400 2061 2120 67.69 72.87 2080 2139 70.27 75.55 2099 2157 72.84 78.22 2117 2175 75.41 80.89 2135 2193 77.98 83.56 2171 2228 83.12 88.90 2206 2262 88.27 94.24 2240 2295 93.43 99.58 2274 — 98.60 — 2307 — 103.77 —
square centrifugal fan

Arrangement #1 & #3 — SWSI — Class I & II

double width fan

RPM 3

double width double-inlet fanTIP SPEED (FPM) = 9.566 x RPM OUTLET 7.66 Sq. Ft. Inside MAX. HP = 13.01{391/4" x 281/2" Outside (1000 )

WHEEL DIAMETER = 361/2" INLET 8.11 Sq. Ft. Inside MAX. RPM{ 39" Dia. Outside CL.1 1098

CL.2 1431

CL.3 1802

VOL. CFM OUTLET VEL. FPM .25 S.P. .375 S.P. .5 S.P. .625 S.P. .75 S.P. .875 S.P. 1 S.P. 1.25 S.P. 1.5 S.P. 1.75 S.P.
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
6128 6894 7660 800 900 1000 311 336 362 0.37 0.45 0.54 338 362 386 0.49 0.59 0.70 362 385 408 0.62 0.73 0.86 385 406 428 0.74 0.87 1.01 408 427 448 0.88 1.01 1.16 447 466 — 1.16 1.32 — 467 485 — 1.31 1.48 — 522 — — 1.82 — — — — — — — — — — — — — —
8426 9192 9958 1100 1200 1300 388 415 442 0.65 0.78 0.93 411 436 462 0.83 0.96 1.12 432 457 482 1.00 1.15 1.32 452 476 501 1.17 1.34 1.53 470 494 518 1.34 1.53 1.74 488 511 534 1.51 1.71 1.94 505 527 550 1.68 1.90 2.14 539 558 580 2.03 2.27 2.53 572 589 609 2.41 2.65 2.93 620 637 — 3.06 3.36 —
10724 11490 12256 1400 1500 1600 470 499 527 1.10 1.29 1.50 489 516 544 1.29 1.49 1.72 508 534 560 1.51 1.72 1.95 526 551 577 1.73 1.95 2.20 543 567 593 1.96 2.19 2.45 559 583 608 2.18 2.43 2.71 574 598 622 2.40 2.67 2.96 603 626 650 2.82 3.13 3.47 630 652 676 3.25 3.59 3.96 657 678 700 3.68 4.05 4.44
13022 13788 14554 1700 1800 1900 556 585 614 1.74 2.01 2.30 572 600 629 1.97 2.26 2.57 587 615 642 2.21 2.50 2.82 603 629 656 2.47 2.76 3.09 618 644 670 2.73 3.04 3.37 633 658 684 3.00 3.32 3.67 647 672 698 3.27 3.61 3.97 674 699 723 3.81 4.18 4.57 699 723 748 4.34 4.75 5.18 723 747 771 4.86 5.31 5.77
15320 16852 18384 2000 2200 2400 643 701 760 2.61 3.34 4.22 658 715 773 2.90 3.67 4.56 671 728 785 3.17 3.98 4.91 684 740 797 3.45 4.27 5.24 697 751 807 3.74 4.57 5.56 710 763 818 4.04 4.89 5.89 723 775 829 4.35 5.22 6.23 748 799 851 4.99 5.90 6.95 772 822 873 5.63 6.60 7.70 795 844 894 6.26 7.31 8.47
19916 21448 22980 2600 2800 3000 820 880 939 5.27 6.46 7.78 831 890 949 5.59 6.80 8.21 843 900 958 5.98 7.20 8.59 854 912 969 6.36 7.62 9.04 864 922 979 6.71 8.02 9.49 874 931 989 7.06 8.39 9.91 884 940 997 7.41 8.77 10.31 904 959 1015 8.16 9.54 11.12 925 978 1032 8.95 10.36 11.96 945 997 1050 9.76 11.21 12.84
24512 26044 3200 3400 998 1060 9.3011.11 1009 1069 9.81 11.59 1017 1077 10.18 12.00 1027 1085 10.64 12.43 1037 1094 11.1212.94 1046 1104 11.59 13.46 1055 1112 12.04 13.95 1071 1128 12.90 14.88 1087 1143 13.7715.79 1104 1159 14.67 16.73
VOL. CFM OUTLET VEL. FPM 2 S.P. 2.5 S.P. 3 S.P. 3.5 S.P. 4 S.P. 4.5 S.P. 5 S.P. 5.5 S.P. 6 S.P. 6.5 S.P.
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
9958 10724 11490 1300 1400 1500 665 683 703 3.80 4.14 4.51 736 752 — 5.10 5.50 — 801 — — 6.54 — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — —
12256 13022 13788 1600 1700 1800 724 746 769 4.93 5.38 5.85 770 790 812 5.94 6.42 6.95 816 834 853 7.02 7.52 8.07 877 894 — 8.68 9.26 — 935 — — 10.50 — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — —
14554 15320 16852 1900 2000 2200 792 816 865 6.36 6.88 8.01 834 857 904 7.51 8.10 9.38 874 895 941 8.67 9.32 10.72 913 933 976 9.88 10.56 12.05 951 970 1010 11.15 11.85 13.40 990 1006 1044 12.46 13.19 14.79 1043 1077 — 14.57 16.23 — 1111 — — 17.72 — — 1144 — — 19.24 — — 1178 — — 20.78 — —
18384 19916 21448 2400 2600 2800 914 964 1015 9.23 10.58 12.08 952 1002 1051 10.76 12.25 13.87 988 1036 1085 12.25 13.90 15.66 1022 1069 1117 13.71 15.51 17.43 1054 1100 1148 15.17 17.10 19.17 1086 1130 1177 16.63 18.67 20.88 1117 1160 1205 18.12 20.25 22.58 1148 1189 1233 19.66 21.84 24.27 1178 1217 1260 21.24 23.47 25.98 1209 1246 1287 22.86 25.14 27.71
22980 24512 26044 3000 3200 3400 1067 1120 1174 13.75 15.62 17.70 1102 1153 1205 15.64 17.58 19.73 1135 1185 1236 17.56 19.61 21.85 1166 1216 1266 19.47 21.66 24.02 1196 1245 1294 21.37 23.71 26.20 1225 1273 1322 23.23 25.73 28.37 1252 1300 1348 25.08 27.72 30.52 1279 1326 1374 26.90 29.69 32.64 1305 1351 1399 28.71 31.64 34.74 1330 1376 1423 30.53 33.58 36.82
27576 29108 30640 3600 3800 4000 1229 1285 1341 20.01 22.57 25.39 1258 1312 1367 22.10 24.71 27.58 1288 1340 1394 24.30 26.98 29.90 1316 1368 1420 26.56 29.32 32.32 1344 1395 1446 28.86 31.73 34.82 1371 1421 1472 31.17 34.15 37.35 1397 1447 1497 33.47 36.59 39.91 1422 1472 1521 35.75 39.02 42.47 1447 1495 1545 38.00 41.43 45.03 1470 1519 1568 40.24 43.82 47.57
32172 33704 4200 4400 1398 1456 28.47 31.81 1423 1479 30.73 34.17 1448 1503 33.10 36.59 1473 1527 35.58 39.13 1498 1551 38.15 41.76 1523 1575 40.78 44.47 1547 1598 43.44 47.23 1571 ` 1622 46.13 50.02 1594 1644 48.82 52.83 1617 1666 51.51 55.65
VOL. CFM OUTLET VEL. FPM 7 S.P. 7.5 S.P. 8 S.P. 8.5 S.P. 9 S.P. 10 S.P. 11 S.P. 12 S.P. 13 S.P. 14 S.P.
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
18384 19916 21448 2400 2600 2800 1240 1274 1313 24.51 26.8529.47 1270 1302 1340 26.19 28.6031.26 1331 1366 — 30.39 33.10 — 1359 1392 — 32.19 34.97— 1388 1418 — 34.02 36.88— 1471 — — 40.77 — — — — — — — — — — — — — — — — — — — — — — — — — —
22980 24512 26044 3000 3200 3400 1356 1400 1446 32.3635.5238.89 1381 1424 1469 34.2237.4640.95 1405 1448 1492 36.11 39.42 43.00 1430 1471 1515 38.0341.4045.07 1454 1494 1537 39.9843.40 47.15 1503 1540 1581 44.00 47.52 51.37 1552 1586 1624 48.13 51.77 55.72 1602 1632 1667 52.34 56.13 60.19 1678 1711 — 60.58 64.77 — 1754 — — 69.46 — —
27576 29108 30640 3600 3800 4000 1493 1541 1590 42.4546.1850.09 1516 1563 1612 44.6448.5352.59 1538 1585 1633 46.83 50.86 55.07 1560 1606 1654 49.0153.1757.54 1581 1627 1674 51.1855.4759.98 1623 1668 1714 55.57 60.07 64.83 1665 1708 1753 60.03 64.69 69.67 1706 1747 1791 64.60 69.39 74.53 1747 1786 1828 69.28 74.17 79.45 1788 1825 1866 74.08 79.07 84.46
32172 33704 35236 4200 4400 4600 1639 1688 1738 54.1858.4762.98 1660 1709 1759 56.8461.2765.92 1681 1730 1779 59.48 64.07 68.86 1701 1750 1799 62.0966.8471.78 1722 1770 1818 64.6969.5974.69 1761 1808 1856 69.83 75.04 80.45 1799 1845 1893 74.93 80.42 86.14 1836 1882 1928 80.01 85.76 91.77 1872 1917 1963 85.10 91.08 97.35 1908 1952 1997 90.25 96.42 102.91
36768 38300 4800 5000 1788 1839 67.7372.75 1808 1859 70.8075.94 1829 1878 73.88 79.14 1848 1898 76.9582.35 1867 1917 80.0085.55 1905 1954 86.08 91.92 1941 1989 92.08 98.23 1976 2024 98.01 104.47 2010 2058 103.88 110.65 2043 — 109.71 —
39832 41364 5200 5400 1890 1941 78.0683.69 1909 1960 81.3687.09 1929 1979 84.68 90.51 1948 1998 88.0193.95 1967 2017 91.3497.41 2003 2053 97.99 104.32 2038 2088 104.61 111.23 2072 — 111.16 — — — — — — — — —
centrifugal utility fan acoustafoil fan balde

Arrangement #1 & #3 — SWSI — Class I & II

industrial belt driven fan

RPM 3

BI fan impellerTIP SPEED (FPM) = 10.54 x RPM OUTLET 9.31 Sq. Ft. Inside MAX. HP = 21.01{431/4" x 315/8" Outside (1000 )

WHEEL DIAMETER = 401/4" INLET 9.85 Sq. Ft. Inside MAX. RPM{ 43" Dia. Outside CL.1 996

CL.2 1297

CL.3 1634

VOL. CFM OUTLET VEL. FPM .25 S.P. .375 S.P. .5 S.P. .625 S.P. .75 S.P. .875 S.P. 1 S.P. 1.25 S.P. 1.5 S.P. 1.75 S.P.
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
7448 8379 9310 800 900 1000 282 305 328 0.45 0.55 0.66 306 328 350 0.60 0.72 0.86 328 349 370 0.75 0.89 1.05 349 368 389 0.90 1.06 1.23 370 387 406 1.07 1.23 1.42 405 423 — 1.41 1.60 — 424 440 — 1.60 1.80 — 473 — — 2.21 — — — — — — — — — — — — — —
10241 11172 12103 1100 1200 1300 352 376 401 0.79 0.95 1.13 373 396 419 1.00 1.17 1.36 392 415 437 1.22 1.40 1.61 410 432 454 1.43 1.64 1.86 427 448 470 1.63 1.86 2.11 443 463 485 1.83 2.08 2.36 458 478 499 2.04 2.31 2.60 488 506 526 2.47 2.75 3.08 519 534 552 2.92 3.23 3.57 562 578 — 3.73 4.08 —
13034 13965 14896 1400 1500 1600 426 452 478 1.33 1.57 1.83 443 468 493 1.57 1.82 2.09 460 484 508 1.84 2.09 2.37 477 500 523 2.11 2.38 2.67 492 515 537 2.38 2.67 2.98 507 529 551 2.65 2.96 3.29 520 542 564 2.91 3.25 3.60 546 568 589 3.43 3.81 4.21 571 592 613 3.95 4.36 4.81 595 615 635 4.48 4.92 5.40
15827 16758 17689 1700 1800 1900 504 530 556 2.12 2.44 2.79 518 544 570 2.40 2.74 3.12 532 557 583 2.69 3.04 3.43 546 571 595 3.00 3.36 3.76 560 584 608 3.32 3.69 4.10 574 597 620 3.65 4.04 4.46 587 610 633 3.98 4.39 4.82 611 634 656 4.64 5.09 5.56 634 656 678 5.28 5.78 6.30 656 677 699 5.91 6.45 7.02
18620 20482 22344 2000 2200 2400 583 636 689 3.17 4.06 5.14 596 648 701 3.53 4.46 5.54 608 660 712 3.86 4.84 5.97 620 671 722 4.19 5.19 6.37 632 681 732 4.55 5.56 6.76 644 692 742 4.91 5.95 7.16 656 703 752 5.29 6.35 7.58 679 725 772 6.07 7.18 8.45 700 746 792 6.84 8.03 9.37 721 765 811 7.61 8.89 10.29
24206 26068 27930 2600 2800 3000 744 798 851 6.41 7.85 9.47 753 807 861 6.80 8.27 9.98 764 817 869 7.27 8.75 10.44 775 827 879 7.73 9.27 10.99 784 836 888 8.16 9.75 11.54 793 844 896 8.58 10.21 12.05 802 853 904 9.01 10.66 12.54 820 870 920 9.92 11.60 13.52 839 887 936 10.88 12.59 14.54 857 904 952 11.87 13.63 15.61
29792 31654 3200 3400 905 961 11.31 13.51 915 969 11.93 14.10 922 977 12.38 14.59 931 984 12.93 15.12 940 992 13.53 15.74 949 1001 14.10 16.37 957 1009 14.64 16.97 971 1023 15.68 18.10 986 1037 16.74 19.20 1001 1051 17.84 20.34
VOL. CFM OUTLET VEL. FPM 2 S.P. 2.5 S.P. 3 S.P. 3.5 S.P. 4 S.P. 4.5 S.P. 5 S.P. 5.5 S.P. 6 S.P. 6.5 S.P.
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
12103 13034 13965 1300 1400 1500 603 619 637 4.62 5.03 5.49 667 682 — 6.20 6.69 — 726 — — 7.96 — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — —
14896 15827 16758 1600 1700 1800 656 677 697 5.99 6.54 7.12 698 717 736 7.22 7.81 8.45 740 756 774 8.53 9.15 9.82 795 811 — 10.56 11.26 — 848 — — 12.76 — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — —
17689 18620 20482 1900 2000 2200 719 740 784 7.73 8.37 9.74 756 777 820 9.13 9.85 11.41 792 812 853 10.55 11.33 13.04 828 846 885 12.02 12.84 14.66 863 879 916 13.56 14.41 16.30 898 913 947 15.15 16.04 17.99 946 977 — 17.72 19.74 — 1007 — — 21.55 — — 1038 — — 23.40 — — 1068 — — 25.27 — —
22344 24206 26068 2400 2600 2800 829 875 921 11.23 12.87 14.69 864 908 953 13.08 14.90 16.86 896 940 984 14.90 16.90 19.04 927 969 1013 16.68 18.86 21.19 956 998 1041 18.44 20.79 23.31 985 1025 1067 20.22 22.70 25.39 1013 1052 1093 22.04 24.62 27.45 1041 1078 1118 23.90 26.56 29.51 1068 1104 1143 25.82 28.55 31.59 1096 1130 1167 27.79 30.58 33.69
27930 29792 31654 3000 3200 3400 968 1016 1065 16.72 18.99 21.52 999 1046 1093 19.02 21.38 23.99 1029 1075 1121 21.35 23.85 26.57 1058 1102 1148 23.68 26.34 29.21 1085 1129 1174 25.98 28.83 31.85 1110 1154 1199 28.25 31.29 34.49 1135 1179 1223 30.49 33.71 37.11 1160 1202 1246 32.71 36.11 39.70 1183 1225 1268 34.92 38.48 42.25 1206 1248 1290 37.13 40.84 44.78
33516 35378 37240 3600 3800 4000 1115 1165 1216 24.33 27.44 30.87 1141 1190 1240 26.87 30.05 33.54 1168 1215 1264 29.55 32.80 36.36 1194 1240 1288 32.30 35.66 39.31 1219 1265 1311 35.10 38.58 42.34 1244 1289 1335 37.90 41.53 45.42 1267 1312 1357 40.70 44.49 48.53 1290 1334 1379 43.47 47.44 51.64 1312 1356 1401 46.21 50.38 54.75 1333 1377 1422 48.93 53.28 57.84
39102 40964 4200 4400 1268 1320 34.62 38.69 1290 1341 37.37 41.55 1313 1363 40.25 44.50 1336 1384 43.27 47.58 1359 1406 46.39 50.78 1381 1428 49.59 54.07 1403 1449 52.83 57.43 1425 1471 56.09 60.83 1446 1491 59.37 64.25 1466 1511 62.63 67.67
VOL. CFM OUTLET VEL. FPM 7 S.P. 7.5 S.P. 8 S.P. 8.5 S.P. 9 S.P. 10 S.P. 11 S.P. 12 S.P. 13 S.P. 14 S.P.
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
22344 24206 26068 2400 2600 2800 1124 1155 1191 29.81 32.66 35.83 1152 1181 1215 31.85 34.78 38.02 1207 1239 — 36.95 40.25 — 1232 1262 — 39.15 42.53 — 1258 1286 — 41.37 44.85 — 1334 — — 49.57 — — — — — — — — — — — — — — — — — — — — — — — — — —
27930 29792 31654 3000 3200 3400 1229 1270 1312 39.35 43.19 47.29 1252 1291 1332 41.61 45.55 49.79 1274 1313 1353 43.91 47.93 52.29 1297 1334 1373 46.24 50.34 54.81 1319 1355 1394 48.62 52.78 57.33 1363 1397 1433 53.51 57.78 62.47 1408 1439 1473 58.53 62.95 67.75 1453 1480 1512 63.64 68.26 73.19 1522 1551 — 73.67 78.77 — 1590 — — 84.86 — —
33516 35378 37240 3600 3800 4000 1354 1398 1442 51.62 56.16 60.91 1375 1418 1461 54.29 59.01 63.96 1395 1437 1481 56.94 61.84 66.97 1414 1457 1499 59.59 64.66 69.97 1434 1475 1518 62.24 67.46 72.94 1472 1513 1554 67.57 73.05 78.84 1510 1549 1589 73.00 78.67 84.72 1547 1585 1624 78.55 84.38 90.64 1584 1620 1658 84.25 90.19 96.62 1621 1655 1692 90.09 96.15 102.70
39102 40964 42826 4200 4400 4600 1486 1531 1576 65.89 71.10 76.58 1505 1550 1595 69.12 74.51 80.16 1524 1569 1613 72.32 77.91 83.74 1543 1587 1631 75.51 81.28 87.29 1561 1605 1649 78.66 84.63 90.83 1597 1640 1683 84.92 91.25 97.84 1631 1673 1717 91.11 97.80 104.75 1665 1706 1749 97.29 104.29 111.59 1698 1738 1780 103.49 110.76 118.38 1730 1770 1811 109.75 117.25 125.15
44688 46550 4800 5000 1621 1667 82.36 88.47 1640 1686 86.10 92.35 1658 1703 89.84 96.24 1676 1721 93.57 100.14 1693 1738 97.29 104.03 1727 1772 104.67 111.77 1760 1804 111.97 119.45 1792 1835 119.18 127.04 1823 1866 126.32 134.55 1853 1896 133.41 141.99
48412 50274 5200 5400 1714 1760 94.93 101.77 1731 1778 98.94 105.90 1749 1795 102.97 110.06 1766 1812 107.02 114.25 1783 1829 111.07 118.45 1816 1861 119.16 126.86 1848 1893 127.20 135.26 1879 — 135.18 — — — — — — — — —
direct drive BI fanBC fan impeller wheel

Arrangement #1 Arrangement #3

Arrangement #1 & #3 — SWSI — Class I & II

DWDI industrial fan

RPM 3

Airfoil utility fan setTIP SPEED (FPM) = 11.65 x RPM OUTLET 11.39 Sq. Ft. Inside MAX. HP = 35.04{473/4" x 35" Outside (1000 )

WHEEL DIAMETER = 441/2" INLET 12.05 Sq. Ft. Inside MAX. RPM{ 471/2" Dia. Outside CL.1 901

CL.2 1173

CL.3 1480

VOL. CFM OUTLET VEL. FPM .25 S.P. .375 S.P. .5 S.P. .625 S.P. .75 S.P. .875 S.P. 1 S.P. 1.25 S.P. 1.5 S.P. 1.75 S.P.
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
9112 10251 11390 800 900 1000 255 276 297 0.55 0.67 0.81 277 297 317 0.73 0.88 1.05 297 315 335 0.92 1.09 1.28 316 333 351 1.10 1.29 1.51 335 350 367 1.30 1.50 1.73 367 383 — 1.72 1.96 — 383 398 — 1.95 2.20 — 428 — — 2.71 — — — — — — — — — — — — — —
12529 13668 14807 1100 1200 1300 318 340 363 0.97 1.16 1.38 337 358 379 1.23 1.43 1.66 355 375 396 1.49 1.72 1.97 371 391 411 1.74 2.00 2.28 386 405 425 1.99 2.28 2.58 400 419 438 2.24 2.55 2.88 414 432 451 2.49 2.82 3.18 442 458 476 3.02 3.37 3.76 469 483 499 3.57 3.95 4.36 508 523 — 4.55 4.99 —
15946 17085 18224 1400 1500 1600 386 409 433 1.63 1.92 2.24 401 423 446 1.92 2.22 2.56 416 438 459 2.24 2.56 2.90 431 452 473 2.58 2.91 3.27 445 465 486 2.91 3.26 3.64 458 478 499 3.24 3.62 4.02 471 490 511 3.56 3.97 4.40 494 513 533 4.19 4.66 5.15 517 535 554 4.83 5.33 5.88 539 556 574 5.47 6.01 6.60
19363 20502 21641 1700 1800 1900 456 480 503 2.59 2.98 3.41 469 492 516 2.93 3.35 3.81 482 504 527 3.29 3.72 4.19 494 516 538 3.67 4.11 4.59 507 528 550 4.06 4.51 5.01 519 540 561 4.46 4.94 5.45 531 551 572 4.87 5.36 5.89 553 573 593 5.67 6.22 6.80 574 593 613 6.46 7.06 7.70 593 612 632 7.23 7.89 8.58
22780 25058 27336 2000 2200 2400 527 575 624 3.88 4.96 6.28 539 587 634 4.32 5.45 6.77 550 597 644 4.72 5.91 7.30 561 607 653 5.13 6.35 7.79 572 616 662 5.56 6.80 8.27 582 626 671 6.01 7.27 8.76 593 636 680 6.47 7.76 9.27 614 656 698 7.41 8.77 10.33 633 674 716 8.37 9.82 11.45 652 692 733 9.31 10.86 12.58
29614 31892 34170 2600 2800 3000 673 722 770 7.83 9.60 11.57 681 730 779 8.31 10.10 12.20 691 739 786 8.89 10.70 12.76 701 748 795 9.45 11.33 13.44 709 756 803 9.97 11.92 14.10 717 764 811 10.49 12.48 14.72 725 771 818 11.02 13.03 15.32 742 787 832 12.13 14.18 16.52 758 802 846 13.30 15.39 17.77 775 817 861 14.50 16.66 19.08
36448 38726 3200 3400 819 869 13.83 16.52 828 877 14.59 17.23 834 883 15.13 17.84 842 890 15.81 18.48 850 898 16.53 19.24 858 905 17.23 20.00 865 912 17.89 20.74 879 925 19.17 22.12 892 938 20.46 23.47 905 950 21.81 24.86
VOL. CFM OUTLET VEL. FPM 2 S.P. 2.5 S.P. 3 S.P. 3.5 S.P. 4 S.P. 4.5 S.P. 5 S.P. 5.5 S.P. 6 S.P. 6.5 S.P.
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
14807 15946 17085 1300 1400 1500 546 560 576 5.65 6.15 6.71 603 617 — 7.57 8.18 — 657 — — 9.72 — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — —
18224 19363 20502 1600 1700 1800 594 612 631 7.32 7.99 8.70 632 648 666 8.83 9.55 10.32 669 684 700 10.43 11.18 12.00 719 733 — 12.91 13.76 — 767 — — 15.60 — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — — —
21641 22780 25058 1900 2000 2200 650 670 709 9.45 10.23 11.90 684 703 742 11.16 12.05 13.94 717 734 772