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Inline Centrifugal Blowers

The NIS-CO Inline Centrifugal Blower FanThe consolidation of the centrifugal represents a quality-built, reliable wheel in the multiple conversion vane product design providing superior equipped tube on sizes C1220 and service and performance for our larger has produced a highly efficient, customers. Incorporating the tried unusually quiet, compact unit having and proven, highly efficient “NIS-CO” stable pressure and non-overloading

Adjustable Motor Base

The Arrangement 9is equipped with a heavy-duty motor base designed to accept a standard NEMA frame motor. This base is pivoted at one end for easy, accurate belt adjustment.

Conversion Vanes

The aerodynamically designed conversion vane system not only straightens the airflow, but also assures turbulent free flow at the discharge which minimizes noise.

Note: Due to size limitations, conversion vanes are not included on size C1050. It is suggested that straightening vanes be added to duct immediately following discharge

Wheels

Centrifanin-line centrifugal units utilize airfoil bladed wheels in all sizes 27" wheel diameter and above. The flat backward curve wheel is utilized in sizes 241/2" wheel diameter and below. The airfoil wheels have been designed to produce ultra high efficiency over a broad performance range with extremely low sound generation. Hollow heavy gauge airfoil blades, aerodynamically engineered, are die formed in one piece and welded at the trailing edge. Blades are then welded in special jigs to a spun inlet section and a heavy-duty back-plate. Rugged cast iron hubs are used, with bore, keyways, and concentricity machined to close tolerances. The CANADA BLOWER Inline Centrifugal Blower Fans airfoil bladed wheel represents the ultimate in centrifugal wheel construction and is designed for optimum trouble-free performance and longevity

Anti-Friction Bearings

Centrifanin-line centrifugal units are equipped with self-aligning single row ball bearings, double row tapered or spherical roller bearings.

Computerized selections have been made on all bearings based on radial, thrust and combined loads to give 100,000 average life hours (AFBMAL50) at the maximum design of each Inline Centrifugal Blower Fan class.

Bearings selected have effective seals to retain the lubricant and to prevent against contamination. All have extended lube lines with grease fittings for relubrication.

See table on page 7 for the type bearings used for each unit. Also listed are bearings available for 400,000 average life hours (AFBMA-L50).

CANADA BLOWER Inline Centrifugal Blower Fans reserves the right to change bearings of equal ratings

Housing

Rugged heavy gauge steel tubular housings containing curved conversion vanes are all welded. All sizes are furnished with flanged inlet and outlet. Inner cylinder and belt duct shield bearings and drive from the airstream. Standard units are furnished with an integral adjustable motor base in Arrangement No. 9. For still more versatility, Arrangement No. 1 is available, in which the motor is located adjacent to the fan housing on a separate adjustable base and the entire assembly mounted on a common base. Arrangement No. 4, direct drive, is also available in Size C3650 and smaller.

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 to insure permanent balance of the wheel. After complete Inline Centrifugal Blower Fan assembly the unit is operated as part of the rigid final inspection. Balance is again checked with portable electronic balancing equipment and refinements are made if required.

Theperformance ratings in this catalog result from test of standard equipment without accessories in place. The combining of several of the accessory items in the air stream may result in variations in air delivery from that shown in the performance tables. Where application is critical and/or unusual, it is recommended that you contact your local NIS-CO representative for engineering assistance in selection of accessory equipment.

Roof Fan

Sizes C1220 through C4900 are available for roof mounting by using a curb cap and stack hood with built in butterfly damper. Maximum velocity through butterfly damper is 3200 FPM.

Weatherproof Drive Cover Belt Guard

Drive covers as shown can be Heavy gauge metal guards are furnished when required to completely furnished for personnel protection

Thein-line centrifugal Standard construction for the are also available. Contact the factory
Inline Centrifugal Blower Fans are manufactured to AMCA Centrifanis: steel housing, bearing for pricing on special items or unusual
standard wheel diameters in sizes support, wheels and shaft. Special requirements.
C1050 throug C4900, as shown below materials, such as aluminum,
in the material specification chart. stainless steel or special coatings
CentrifansClass I CentrifansClass II
FAN SIZE HOUSING BAND BEARING HOUSING ANGLE FLANGE SHAFT DIA. 100,000 HOURS 400,000 HOURS BEARING
C1050 12 Ga. 16 Ga. 1 X 12 Ga. 1 A C
C1220 12 Ga. 16 Ga. 1 X 12 Ga. 1 A C
C1350 12 Ga. 16 Ga. 1 X 12 Ga. 1 A C
C1500 12 Ga. 14 Ga. 1 X 12 Ga. 1 A C
C1650 12 Ga. 14 Ga. 1 X 12 Ga. 1 A C
C1820 12 Ga. 14 Ga. 1 X 12 Ga. 13/16 A C
C2000 10 Ga. 12 Ga. 11/4 X 10 Ga. 13/16 A C
C2220 10 Ga. 12 Ga. 11/4 X 10 Ga. 13/16 A C
C2450 10 Ga. 12 Ga. 11/4 X 10 Ga. 17/16 A C
C2700 10 Ga. 12 Ga. 11/4 X 10 Ga. 111/16 A C
C3000 10 Ga. 12 Ga. 11/4 X 10 Ga. 111/16 A C
C3300 12 Ga. 12 Ga. 2 X 2 X 3/16 115/16 A C
C3650 12 Ga. 12 Ga. 2 X 2 X 3/16 23/16 B C
C4020 12 Ga. 12 Ga. 21/2 X21/2 X 3/16 23/16 C D
C4450 12 Ga. 12 Ga. 21/2 X21/2 X 3/16 23/16 C D
C4900 10 Ga. 10 Ga. 21/2 X21/2 X 3/16 27/16 C D
FAN SIZE HOUSING BAND BEARING HOUSING ANGLE FLANGE SHAFT DIA. 100,000 HOURS 400,000 HOURS BEARING
C1050 12 Ga. 16 Ga. 1 X 12 Ga. 1 A C
C1220 12 Ga. 16 Ga. 1 X 12 Ga. 13/16 A C
C1350 12 Ga. 16 Ga. 1 X 12 Ga. 13/16 A C
C1500 12 Ga. 14 Ga. 1 X 12 Ga. 13/16 A C
C1650 12 Ga. 14 Ga. 1 X 12 Ga. 17/16 A C
C1820 12 Ga. 14 Ga. 1 X 12 Ga. 17/16 A D
C2000 10 Ga. 12 Ga. 11/4 X 10 Ga. 17/16 C D
C2220 10 Ga. 12 Ga. 11/4 X 10 Ga. 111/16 B D
C2450 10 Ga. 12 Ga. 11/4 X 10 Ga. 111/16 B D
C2700 10 Ga. 12 Ga. 11/4 X 10 Ga. 115/16 C D
C3000 10 Ga. 12 Ga. 11/4 X 10 Ga. 115/16 C D
C3300 12 Ga. 12 Ga. 2 X 2 X 3/16 23/16 C D
C3650 12 Ga. 12 Ga. 2 X 2 X 3/16 23/16 C D
C4020 12 Ga. 12 Ga. 21/2 X21/2 X 3/16 27/16 C D
C4450 12 Ga. 12 Ga. 21/2 X21/2 X 3/16 211/16 C D
C4900 10 Ga. 10 Ga. 21/2 X21/2 X 3/16 215/16 C D

RPM 3

TIP SPEED (FPM) = 2.749 x RPM OUTLET Diameter = 141/8" MAX. HP = .0408{Area = 1.087 Ft.2 (1000 )

C1050

WHEEL DIAMETER = 101/2" INLET Diameter = 141/8" MAX. RPM{ Area = 1.087 Ft.2 CL.1 4166

CL.2 4710

VOL. OUTLET VEL. .25 S.P. .5 S.P. .75 S.P. 1 S.P. 1.25 S.P. 1.5 S.P. 2 S.P. 2.5 S.P. 3 S.P. 3.5 S.P.
CFM FPM RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
435 400 1139 0.06 1403 0.10 1637 0.15 1851 0.20
544 500 1288 0.09 1522 0.14 1729 0.19 1922 0.25 2102 0.31 2273 0.38
652 600 1446 0.12 1661 0.18 1848 0.24 2022 0.31 2186 0.37 2343 0.45 2638 0.60 2912 0.78
761 700 1613 0.17 1811 0.24 1984 0.31 2143 0.38 2294 0.45 2438 0.53 2711 0.69 2968 0.87 3211 1.07 3442 1.28
870 800 1788 0.23 1968 0.31 2130 0.39 2279 0.46 2419 0.54 2553 0.63 2807 0.80 3046 0.99 3275 1.19 3493 1.40
978 900 1971 0.31 2130 0.39 2284 0.48 2424 0.57 2556 0.65 2681 0.74 2919 0.93 3144 1.13 3359 1.34 3565 1.56
1087 1000 2157 0.41 2298 0.49 2442 0.59 2576 0.69 2701 0.78 2820 0.88 3044 1.08 3256 1.29 3459 1.51 3654 1.74
1196 1100 2342 0.52 2473 0.62 2605 0.72 2733 0.82 2852 0.93 2966 1.04 3179 1.25 3380 1.48 3572 1.71 3757 1.95
1304 1200 2527 0.65 2653 0.76 2773 0.87 2893 0.98 3008 1.10 3117 1.21 3321 1.45 3513 1.68 3696 1.93 3873 2.18
1413 1300 2715 0.81 2838 0.93 2945 1.04 3057 1.16 3167 1.29 3272 1.41 3469 1.66 3653 1.92 3828 2.18 3997 2.44
1522 1400 2911 1.00 3024 1.12 3123 1.24 3226 1.37 3330 1.50 3431 1.63 3621 1.91 3799 2.18 3968 2.45 4129 2.73
1631 1500 3109 1.21 3209 1.34 3305 1.47 3399 1.60 3496 1.74 3593 1.88 3777 2.17 3949 2.46 4112 2.75 4268 3.05
1739 1600 3288 1.43 3394 1.59 3490 1.73 3576 1.86 3666 2.01 3758 2.15 3935 2.46 4102 2.77 4261 3.08 4412 3.40
1848 1700 3473 1.72 3579 1.86 3676 2.02 3758 2.16 3841 2.31 3926 2.46 4096 2.78 4259 3.11 4413 3.44 4560 3.77
VOL. OUTLET VEL. 4 S.P. 4.5 S.P. 5 S.P. 5.5 S.P. 6 S.P. 6.5 S.P. 7 S.P. 7.5 S.P. 8 S.P. 8.5 S.P.
CFM FPM RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
870 800 3703 1.63 3905 1.87
978 900 3764 1.79 3956 2.03 4143 2.29 4324 2.56 4500 2.83
1087 1000 3843 1.98 4026 2.23 4204 2.49 4377 2.76 4546 3.04
1196 1100 3937 2.20 4111 2.46 4281 2.72 4447 3.00 4608 3.28
1304 1200 4044 2.44 4210 2.71 4372 2.99 4531 3.27 4686 3.56
1413 1300 4161 2.71 4320 2.99 4475 3.28 4627 3.58
1522 1400 4286 3.02 4439 3.31 4588 3.61
1631 1500 4419 3.35 4566 3.65 4709 3.96
1739 1600 4558 3.71 4699 4.03
1848 1700 4701 4.11

Power rating (BHP) does not include drive losses. Performance shown is fors with outlet duct. Data in bold face indicates quietest and most efficient performance.

Class I Inline Centrifugal Blower Fans

Class II Inline Centrifugal Blower Fans

RPM 3

TIP SPEED (FPM) = 3.207 x RPM OUTLET Diameter = 169/16" MAX. HP = .1099{Area = 1.50 Ft.2 (1000 )

C1220

WHEEL DIAMETER = 121/4" INLET Diameter = 169/16" MAX. RPM{ Area = 1.50 Ft.2 CL.1 3273

CL.2 4072

VOL. OUTLET VEL. .25 S.P. .5 S.P. .75 S.P. 1 S.P. 1.25 S.P. 1.5 S.P. 2 S.P. 2.5 S.P. 3 S.P. 3.5 S.P.
CFM FPM RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
600 400 793 0.05 1036 0.10 1248 0.16
750 500 875 0.07 1080 0.12 1272 0.19 1448 0.26 1609 0.33
900 600 975 0.10 1147 0.16 1316 0.22 1477 0.30 1629 0.38 1771 0.46
1050 700 1086 0.14 1231 0.20 1379 0.27 1524 0.34 1663 0.43 1797 0.52 2046 0.72 2274 0.93
1200 800 1201 0.19 1329 0.25 1457 0.33 1587 0.41 1714 0.49 1837 0.59 2072 0.79 2292 1.02 2496 1.26
1350 900 1318 0.25 1435 0.32 1548 0.40 1663 0.48 1778 0.57 1891 0.67 2110 0.88 2319 1.11 2516 1.36 2702 1.63
1500 1000 1439 0.32 1547 0.40 1648 0.49 1751 0.57 1854 0.67 1958 0.77 2161 0.99 2357 1.23 2545 1.48 2724 1.75
1650 1100 1563 0.42 1662 0.50 1755 0.59 1847 0.68 1941 0.78 2035 0.88 2222 1.11 2406 1.35 2584 1.62 2755 1.90
1800 1200 1692 0.53 1778 0.62 1866 0.71 1951 0.81 2036 0.91 2121 1.02 2294 1.25 2465 1.50 2633 1.77 2796 2.06
1950 1300 1824 0.66 1897 0.75 1980 0.85 2059 0.95 2137 1.06 2216 1.17 2375 1.41 2534 1.67 2691 1.95 2846 2.24
2100 1400 1954 0.81 2017 0.90 2096 1.01 2171 1.12 2244 1.23 2316 1.35 2463 1.59 2611 1.86 2758 2.14 2904 2.44
2250 1500 2082 0.97 2141 1.07 2214 1.19 2285 1.31 2354 1.43 2421 1.55 2557 1.80 2695 2.07 2833 2.36 2971 2.67
2400 1600 2211 1.17 2267 1.27 2333 1.39 2401 1.52 2467 1.64 2530 1.77 2657 2.03 2786 2.31 2915 2.61 3044 2.92
2550 1700 2349 1.40 2397 1.49 2453 1.61 2518 1.75 2582 1.88 2642 2.02 2762 2.29 2882 2.58 3003 2.88 3125 3.20
2700 1800 2473 1.63 2528 1.75 2576 1.86 2637 2.00 2698 2.15 2756 2.29 2870 2.58 2982 2.87 3096 3.19 3211 3.51
VOL. OUTLET VEL. 4 S.P. 4.5 S.P. 5 S.P. 5.5 S.P. 6 S.P. 6.5 S.P. 7 S.P. 7.5 S.P. 8 S.P. 8.5 S.P.
CFM FPM RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
1500 1000 2896 2.04 3060 2.34 3218 2.65
1650 1100 2921 2.19 3081 2.50 3234 2.82 3382 3.15 3525 3.49
1800 1200 2955 2.36 3108 2.68 3257 3.00 3402 3.34 3542 3.69 3678 4.05 3809 4.42 3937 4.80
1950 1300 2997 2.55 3144 2.87 3288 3.21 3428 3.56 3564 3.92 3697 4.29 3826 4.67 3952 5.05
2100 1400 3048 2.76 3189 3.09 3327 3.43 3462 3.79 3594 4.16 3723 4.53 3849 4.92 3972 5.32
2250 1500 3107 2.99 3241 3.33 3373 3.68 3503 4.04 3630 4.42 3755 4.81 3878 5.20 3998 5.61
2400 1600 3173 3.25 3301 3.60 3427 3.96 3552 4.33 3674 4.71 3795 5.10 3913 5.50 4030 5.92
2550 1700 3247 3.54 3368 3.89 3488 4.26 3607 4.63 3725 5.02 3841 5.42 3955 5.83 4068 6.26
2700 1800 3326 3.86 3441 4.22 3556 4.59 3669 4.97 3782 5.37 3894 5.77 4004 6.19
2850 1900 3411 4.20 3520 4.57 3629 4.95 3738 5.34 3846 5.74 3953 6.15 4059 6.58
3000 2000 3501 4.58 3605 4.96 3708 5.34 3812 5.74 3915 6.15 4018 6.57
3300 2200 3694 5.45 3788 5.83 3881 6.23 3976 6.64 4070 7.06
3600 2400 3901 6.46 3986 6.86 4071 7.27

Power rating (BHP) does not include drive losses. Performance shown is fors with outlet duct. Data in bold face indicates quietest and most efficient performance.

Class I Inline Centrifugal Blower Fans

RPM 3

TIP SPEED (FPM) = 3.534 x RPM OUTLET Diameter = 183/8" MAX. HP = .1787{Area = 1.84 Ft.2 (1000 )

C1350

WHEEL DIAMETER = 131/2" INLET Diameter = 183/8" MAX. RPM{ Area = 1.84 Ft.2 CL.1 2871

CL.2 3693

VOL. OUTLET VEL. .25 S.P. .5 S.P. .75 S.P. 1 S.P. 1.25 S.P. 1.5 S.P. 2 S.P. 2.5 S.P. 3 S.P. 3.5 S.P.
CFM FPM RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
736 400 720 0.06 940 0.12 1132 0.19
920 500 794 0.09 980 0.15 1154 0.23 1314 0.31 1460 0.40
1104 600 885 0.12 1041 0.19 1195 0.27 1340 0.36 1478 0.46 1607 0.56
1288 700 985 0.17 1117 0.24 1251 0.33 1383 0.42 1509 0.52 1631 0.63 1857 0.87 2064 1.13
1472 800 1090 0.23 1206 0.31 1323 0.40 1440 0.49 1555 0.60 1667 0.71 1880 0.96 2079 1.23 2265 1.53
1656 900 1196 0.30 1302 0.39 1405 0.48 1509 0.59 1613 0.70 1716 0.81 1915 1.07 2104 1.35 2283 1.65 2452 1.97
1840 1000 1306 0.39 1403 0.49 1495 0.59 1589 0.70 1683 0.81 1776 0.93 1961 1.20 2139 1.49 2309 1.80 2472 2.13
2024 1100 1418 0.50 1508 0.61 1592 0.72 1676 0.83 1761 0.95 1847 1.07 2017 1.35 2183 1.64 2344 1.96 2500 2.30
2208 1200 1535 0.64 1614 0.75 1693 0.86 1770 0.98 1847 1.10 1925 1.23 2082 1.52 2237 1.82 2389 2.15 2537 2.50
2392 1300 1655 0.80 1721 0.91 1797 1.03 1868 1.16 1939 1.29 2010 1.42 2155 1.71 2299 2.03 2442 2.36 2582 2.72
2576 1400 1773 0.98 1831 1.09 1902 1.23 1970 1.36 2036 1.50 2102 1.64 2235 1.93 2369 2.26 2503 2.60 2635 2.97
2760 1500 1889 1.18 1942 1.30 2009 1.44 2074 1.59 2136 1.73 2197 1.88 2320 2.19 2445 2.52 2571 2.87 2696 3.24
2944 1600 2006 1.42 2057 1.54 2117 1.68 2179 1.84 2238 2.00 2296 2.15 2411 2.47 2528 2.81 2645 3.17 2763 3.55
3128 1700 2131 1.70 2175 1.82 2226 1.96 2285 2.12 2343 2.29 2398 2.45 2506 2.78 2615 3.13 2725 3.50 2835 3.89
3312 1800 2244 1.98 2294 2.13 2337 2.26 2393 2.43 2448 2.61 2501 2.78 2604 3.13 2706 3.49 2809 3.87 2914 4.27
VOL. OUTLET VEL. 4 S.P. 4.5 S.P. 5 S.P. 5.5 S.P. 6 S.P. 6.5 S.P. 7 S.P. 7.5 S.P. 8 S.P. 8.5 S.P.
CFM FPM RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
1840 1000 2628 2.48 2777 2.84 2920 3.21
2024 1100 2651 2.66 2795 3.04 2935 3.42 3069 3.82 3199 4.24 3324 4.66
2208 1200 2681 2.87 2821 3.25 2956 3.65 3087 4.06 3214 4.49 3337 4.92 3457 5.37 3573 5.83
2392 1300 2719 3.10 2853 3.49 2984 3.90 3111 4.32 3234 4.76 3355 5.20 3472 5.67 3586 6.14
2576 1400 2766 3.35 2894 3.75 3019 4.17 3141 4.60 3261 5.05 3378 5.51 3493 5.98 3604 6.46
2760 1500 2819 3.64 2941 4.05 3061 4.47 3179 4.91 3294 5.37 3408 5.84 3519 6.32 3628 6.81
2944 1600 2880 3.95 2995 4.37 3110 4.80 3223 5.25 3334 5.72 3443 6.19 3551 6.69 3657 7.19
3128 1700 2946 4.30 3056 4.73 3165 5.17 3273 5.63 3380 6.10 3485 6.59 3589 7.08 3692 7.60
3312 1800 3018 4.68 3123 5.12 3226 5.57 3330 6.04 3432 6.52 3533 7.01 3633 7.52
3496 1900 3095 5.11 3194 5.55 3293 6.01 3392 6.48 3490 6.97 3587 7.47 3683 7.99
3680 2000 3177 5.57 3271 6.02 3365 6.48 3459 6.97 3553 7.46 3646 7.98
4048 2200 3352 6.62 3437 7.08 3522 7.57 3607 8.07 3693 8.58
4416 2400 3540 7.84 3617 8.33

Power rating (BHP) does not include drive losses. Performance shown is fors with outlet duct. Data in bold face indicates quietest and most efficient performance.

Class I Inline Centrifugal Blower Fans

RPM 3

TIP SPEED (FPM) = 3.927 x RPM OUTLET Diameter = 203/8" MAX. HP = .2937{Area = 2.26 Ft.2 (1000 )

C1500

WHEEL DIAMETER = 15" INLET Diameter = 203/8" MAX. RPM{ Area = 2.26 Ft.2 CL.1 2458

CL.2 3241

CL.3 3699

VOL. CFM OUTLET VEL. FPM .25 S.P. .5 S.P. .75 S.P. 1 S.P. 1.25 S.P. 1.5 S.P. 2 S.P. 2.5 S.P. 3 S.P. 3.5 S.P.
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
1356 1582 1808 600 700 800 778 865 958 0.14 0.19 0.26 921 985 1061 0.22 0.27 0.35 1067 1110 1168 0.32 0.37 0.45 1207 1234 1277 0.43 0.49 0.57 1339 1355 1386 0.55 0.62 0.70 1472 1493 0.76 0.84 1698 — 1.16 — — — — — — — — — — — — — — — — —
2034 2260 2486 900 1000 1100 1054 1153 1255 0.34 0.45 0.58 1144 1233 1325 0.44 0.55 0.68 1238 1316 1400 0.54 0.66 0.80 1333 1400 1476 0.66 0.78 0.93 1431 1487 1553 0.80 0.92 1.07 1528 1575 1632 0.95 1.07 1.22 1718 1749 1791 1.27 1.40 1.55 1900 1919 1949 1.63 1.77 1.93 2083 2103 2.17 2.33 2240 2253 — 2.59 2.77 —
2712 2938 3164 1200 1300 1400 1358 1459 1560 0.73 0.90 1.10 1420 1517 1617 0.84 1.02 1.23 1488 1579 1672 0.96 1.15 1.37 1557 1642 1731 1.10 1.29 1.52 1627 1706 1790 1.24 1.44 1.67 1698 1771 1849 1.39 1.60 1.83 1843 1903 1970 1.73 1.94 2.18 1989 2037 2094 2.11 2.32 2.57 2133 2172 2219 2.52 2.74 2.99 2275 2305 2344 2.96 3.19 3.44
3390 3616 3842 1500 1600 1700 1660 1763 1869 1.32 1.58 1.89 1718 1821 1923 1.48 1.76 2.07 1768 1866 1965 1.62 1.90 2.22 1822 1915 2011 1.77 2.06 2.38 1877 1966 2058 1.93 2.22 2.55 1932 2018 2107 2.10 2.40 2.73 2044 2122 2204 2.45 2.76 3.11 2158 2228 2303 2.84 3.16 3.51 2274 2336 2403 3.27 3.59 3.95 2391 2445 2505 3.73 4.05 4.41
4068 4294 1800 1900 1976 2081 2.23 2.60 2025 2126 2.41 2.79 2067 2169 2.57 2.97 2108 2207 2.74 3.14 2152 2247 2.92 3.32 2197 2290 3.10 3.51 2289 2376 3.49 3.92 2381 2463 3.91 4.34 2475 2552 4.35 4.79 2571 2641 4.82 5.27
4520 4972 2000 2200 2184 2408 3.00 4.02 2226 2429 3.20 4.14 2271 2475 3.41 4.41 2307 2510 3.58 4.61 2344 2543 3.77 4.80 2384 2577 3.96 5.00 2466 2650 4.38 5.44 2548 2724 4.82 5.91 2631 2799 5.28 6.39 2716 2875 5.76 6.89
VOL. OUTLET VEL. 4 S.P. 4.5 S.P. 5 S.P. 5.5 S.P. 6 S.P. 6.5 S.P. 7 S.P. 7.5 S.P. 8 S.P. 8.5 S.P.
CFM FPM RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
2712 1200 2413 3.43 2548 3.92 2677 4.43
2938 1300 2437 3.66 2565 4.16 2691 4.68 2813 5.22 2931 5.77
3164 1400 2468 3.92 2591 4.43 2711 4.96 2829 5.51 2944 6.08 3056 6.67 3166 7.26
3390 1500 2508 4.21 2623 4.73 2738 5.26 2851 5.83 2962 6.41 3071 7.00 3178 7.62 3282 8.25 3385 8.89
3616 1600 2554 4.54 2664 5.06 2772 5.60 2880 6.17 2987 6.76 3092 7.37 3195 7.99 3297 8.64 3397 9.29 3495 9.96
3842 1700 2608 4.91 2711 5.43 2814 5.98 2916 6.55 3018 7.14 3119 7.76 3218 8.40 3317 9.05 3414 9.72 3509 10.40
4068 1800 2667 5.32 2764 5.84 2861 6.39 2959 6.97 3056 7.57 3152 8.19 3247 8.84 3342 9.50 3436 10.18 3529 10.87
4294 1900 2732 5.77 2823 6.30 2915 6.86 3007 7.44 3099 8.04 3191 8.67 3283 9.31 3374 9.98 3464 10.67 3553 11.37
4520 2000 2801 6.27 2887 6.80 2974 7.36 3061 7.95 3149 8.56 3237 9.19 3324 9.84 3411 10.51 3498 11.20 3584 11.91
4972 2200 2951 7.41 3028 7.96 3106 8.53 3185 9.12 3264 9.74 3343 10.38 3423 11.04 3502 11.72 3582 12.42 3661 13.14
5424 2400 3113 8.76 3183 9.33 3253 9.91 3324 10.51 3395 11.14 3467 11.78 3540 12.45 3613 13.14 3685 13.85
5876 2600 3284 10.33 3348 10.91 3412 11.51 3476 12.13 3541 12.77 3607 13.42 3673 14.10
6328 2800 3462 12.12 3520 12.73 3579 13.35 3639 13.99 3698 14.64

Power rating (BHP) does not include drive losses. Performance shown is fors with outlet duct. Data in bold face indicates quietest and most efficient performance.

Class I Inline Centrifugal Blower Fans

Class III Inline Centrifugal Blower Fans

RPM 3

TIP SPEED (FPM) = 4.320 x RPM OUTLET Diameter = 223/8" MAX. HP = .4730{Area = 2.73 Ft.2 (1000 )

C1650

WHEEL DIAMETER = 161/2" INLET Diameter = 223/8" MAX. RPM{ Area = 2.73 Ft.2 CL.1 2402

CL.2 3165

CL.3 3473

VOL. CFM OUTLET VEL. FPM .25 S.P. .5 S.P. .75 S.P. 1 S.P. 1.25 S.P. 1.5 S.P. 2 S.P. 2.5 S.P. 3 S.P. 3.5 S.P.
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
1638 1911 2184 600 700 800 708 787 871 0.17 0.23 0.31 838 896 964 0.26 0.33 0.42 970 1009 1062 0.38 0.45 0.54 1097 1122 1161 0.52 0.59 0.69 1217 1232 1260 0.67 0.75 0.85 — 1338 1358 — 0.92 1.02 — — 1544 — — 1.41 — — — — — — — — — — — — — — — — — —
2457 2730 3003 900 1000 1100 958 1049 1141 0.41 0.54 0.70 1040 1121 1204 0.53 0.66 0.82 1125 1196 1272 0.66 0.80 0.97 1212 1273 1341 0.80 0.95 1.12 1301 1352 1412 0.97 1.11 1.29 1389 1431 1483 1.15 1.29 1.47 1562 1590 1628 1.54 1.69 1.88 1727 1745 1772 1.97 2.14 2.33 — 1894 1912 — 2.62 2.82 — 2036 2048 — 3.13 3.35
3276 3549 3822 1200 1300 1400 1234 1327 1418 0.88 1.09 1.33 1291 1379 1470 1.01 1.23 1.49 1352 1435 1520 1.16 1.39 1.66 1415 1493 1573 1.33 1.56 1.83 1479 1551 1627 1.50 1.74 2.02 1543 1610 1681 1.68 1.93 2.21 1675 1730 1791 2.09 2.35 2.64 1808 1852 1904 2.55 2.81 3.10 1939 1975 2018 3.05 3.31 3.61 2068 2096 2131 3.59 3.86 4.16
4095 4368 4641 1500 1600 1700 1509 1603 1699 1.60 1.92 2.28 1562 1655 1748 1.79 2.13 2.50 1607 1696 1787 1.96 2.30 2.68 1656 1741 1828 2.14 2.49 2.88 1706 1788 1871 2.34 2.69 3.09 1756 1834 1915 2.54 2.90 3.31 1858 1929 2003 2.97 3.34 3.76 1962 2025 2093 3.44 3.82 4.25 2067 2123 2185 3.96 4.34 4.78 2174 2223 2277 4.51 4.90 5.34
4914 5187 1800 1900 1796 1892 2.69 3.14 1841 1932 2.92 3.37 1879 1972 3.12 3.60 1916 2006 3.31 3.80 1956 2043 3.53 4.02 1998 2082 3.75 4.25 2081 2160 4.23 4.74 2165 2239 4.73 5.25 2250 2320 5.26 5.80 2337 2401 5.83 6.37
5460 6006 2000 2200 1985 2189 3.63 4.87 2023 2208 3.87 5.01 2065 2250 4.13 5.33 2097 2282 4.33 5.58 2131 2312 4.56 5.81 2167 2343 4.80 6.05 2242 2409 5.30 6.59 2317 2477 5.83 7.15 2392 2545 6.39 7.73 2469 2613 6.97 8.34
VOL. OUTLET VEL. 4 S.P. 4.5 S.P. 5 S.P. 5.5 S.P. 6 S.P. 6.5 S.P. 7 S.P. 7.5 S.P. 8 S.P. 8.5 S.P.
CFM FPM RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
3276 1200 2194 4.15 2316 4.74 2434 5.36
3549 1300 2215 4.43 2332 5.04 2446 5.67 2557 6.32 2665 6.99
3822 1400 2244 4.75 2355 5.36 2464 6.00 2571 6.67 2676 7.35 2778 8.07 2878 8.79
4095 1500 2280 5.10 2385 5.72 2489 6.37 2592 7.05 2693 7.75 2792 8.48 2889 9.22 2984 9.98 3077 10.75
4368 1600 2322 5.49 2421 6.12 2520 6.78 2618 7.47 2715 8.18 2811 8.91 2905 9.67 2997 10.45 3088 11.24 3177 12.06
4641 1700 2371 5.94 2464 6.57 2558 7.23 2651 7.93 2743 8.65 2835 9.39 2926 10.16 3015 10.95 3103 11.76 3190 12.59
4914 1800 2425 6.43 2513 7.07 2601 7.74 2690 8.43 2778 9.16 2865 9.91 2952 10.69 3038 11.49 3124 12.31 3208 13.15
5187 1900 2483 6.98 2566 7.62 2650 8.29 2734 9.00 2818 9.73 2901 10.49 2984 11.27 3067 12.08 3149 12.91 3230 13.76
5460 2000 2546 7.59 2625 8.23 2704 8.91 2783 9.62 2863 10.35 2942 11.12 3022 11.90 3101 12.72 3180 13.56 3258 14.42
6006 2200 2683 8.97 2753 9.63 2824 10.32 2895 11.04 2967 11.78 3039 12.55 3111 13.35 3184 14.18 3256 15.03 3328 15.90
6552 2400 2830 10.60 2893 11.28 2957 11.99 3022 12.72 3087 13.47 3152 14.26 3218 15.07 3284 15.90 3350 16.76 3417 17.64
7098 2600 2986 12.50 3043 13.20 3102 13.93 3160 14.68 3219 15.45 3279 16.24 3339 17.06 3399 17.91 3460 18.77
7644 2800 3147 14.67 3200 15.40 3254 16.15 3308 16.93 3362 17.72 3417 18.53 3472 19.36

Power rating (BHP) does not include drive losses. Performance shown is fors with outlet duct. Data in bold face indicates quietest and most efficient performance.

Class I Inline Centrifugal Blower Fans

RPM 3

TIP SPEED (FPM) = 4.778 x RPM OUTLET Diameter = 2411/16" MAX. HP = .7279{Area = 3.32 Ft.2 (1000 )

C1820

WHEEL DIAMETER = 181/4" INLET Diameter = 2411/16" MAX. RPM{ Area = 3.32 Ft.2 CL.1 2069

CL.2 2741

CL.3 3221

VOL. CFM OUTLET VEL. FPM .25 S.P. .5 S.P. .75 S.P. 1 S.P. 1.25 S.P. 1.5 S.P. 2 S.P. 2.5 S.P. 3 S.P. 3.5 S.P.
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
1992 2324 2656 600 700 800 670 748 828 0.22 0.30 0.41 778 839 910 0.32 0.42 0.54 894 935 991 0.46 0.55 0.68 1009 1034 1075 0.62 0.71 0.84 1121 1134 1162 0.80 0.90 1.02 — 1231 1250 — 1.10 1.22 — — 1421 — — 1.67 — — — — — — — — — — — — — — — — — —
2988 3320 3652 900 100 1100 909 992 1076 0.54 0.70 0.90 987 1066 1145 0.69 0.87 1.09 1057 1130 1207 0.84 1.03 1.26 1130 1194 1264 1.00 1.20 1.44 1205 1259 1322 1.18 1.38 1.63 1282 1327 1382 1.38 1.58 1.83 1437 1466 1506 1.84 2.04 2.29 1589 1605 1633 2.35 2.56 2.80 1734 1742 1760 2.91 3.12 3.37 — 1875 1885 — 3.73 3.99
3984 4316 4648 1200 1300 1400 1162 1248 1336 1.13 1.40 1.72 1226 1307 1390 1.33 1.62 1.94 1285 1365 1445 1.53 1.84 2.18 1339 1417 1496 1.72 2.05 2.41 1392 1466 1542 1.91 2.25 2.63 1445 1514 1587 2.12 2.46 2.86 1556 1614 1678 2.58 2.92 3.33 1671 1718 1773 3.10 3.44 3.85 1787 1824 1870 3.67 4.01 4.42 1903 1932 1969 4.29 4.64 5.04
4980 5312 5644 1500 1600 1700 1425 1515 1603 2.08 2.50 2.96 1474 1560 1645 2.32 2.74 3.21 1526 1608 1691 2.57 3.01 3.49 1575 1655 1736 2.82 3.82 3.79 1621 1700 1780 3.07 3.54 4.07 1664 1741 1820 3.30 3.80 4.35 1748 1821 1896 3.79 4.31 4.88 1834 1900 1970 4.31 4.84 5.43 1923 1982 2046 4.88 5.42 6.02 2014 2065 2123 5.51 6.04 6.64
5976 6308 1800 1900 1687 1772 3.45 3.99 1732 1819 3.74 4.34 1774 1859 4.04 4.64 1817 1900 4.34 4.96 1860 1940 4.65 5.29 1900 1980 4.95 5.61 1974 2052 5.52 6.22 2044 2120 6.09 6.82 2114 2186 6.69 7.43 2186 2253 7.32 8.07
6640 7304 2000 2200 1876 2045 4.75 6.17 1907 2087 4.99 6.54 1945 2117 5.31 6.84 1983 2152 5.64 7.20 2022 2187 5.98 7.57 2060 2222 6.32 7.94 2131 2291 6.98 8.69 2197 2354 7.62 9.41 2260 2414 8.25 10.10 2323 2471 8.90 10.80
VOL. OUTLET VEL. 4 S.P. 4.5 S.P. 5 S.P. 5.5 S.P. 6 S.P. 6.5 S.P. 7 S.P. 7.5 S.P. 8 S.P. 8.5 S.P.
CFM FPM RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
3984 1200 2018 4.95 2131 5.65 2241 6.38
4316 1300 2039 5.30 2146 6.01 2250 6.75 2353 7.53 2454 8.33
4648 1400 2068 5.71 2168 6.42 2267 7.17 2366 7.95 2462 8.77 2557 9.61 2651 10.48
4980 1500 2106 6.18 2199 6.89 2292 7.64 2385 8.43 2477 9.25 2568 10.10 2658 10.98 2747 11.89 2834 12.82
5312 1600 2151 6.71 2237 7.42 2325 8.17 2412 8.96 2499 9.79 2586 10.65 2672 11.54 2757 12.46 2841 13.40 2924 14.37
5644 1700 2202 7.31 2283 8.02 2364 8.78 2446 9.57 2528 10.40 2611 11.26 2693 12.15 2774 13.08 2855 14.03 2935 15.01
5976 1800 2259 7.99 2334 8.70 2410 9.45 2487 10.25 2564 11.07 2642 11.94 2720 12.83 2797 13.76 2874 14.72 2951 15.70
6308 1900 2321 8.75 2391 9.46 2462 10.21 2534 11.00 2606 11.83 2680 12.70 2753 13.59 2827 14.52 2900 15.48 2974 16.47
6640 2000 2387 9.58 2452 10.30 2519 11.05 2586 11.85 2654 12.67 2723 13.54 2793 14.43 2862 15.36 2932 16.33 3002 17.32
7304 2200 2528 11.50 2586 12.24 2645 13.00 2704 13.80 2764 14.63 2825 15.49 2887 16.39 2950 17.32 3012 18.28 3076 19.27
7968 2400 2678 13.76 2731 14.53 2784 15.31 2837 16.13 2890 16.96 2945 17.83 3000 18.73 3056 19.67 3112 20.63 3169 21.62
8632 2600 2834 16.36 2883 17.18 2931 18.00 2980 18.84 3028 19.70 3078 20.58 3127 21.49 3177 22.43
9296 2800 2991 19.31 3039 20.19 3085 21.07 3130 21.96 3175 22.85 3220 23.75

Power rating (BHP) does not include drive losses. Performance shown is fors with outlet duct. Data in bold face indicates quietest and most efficient performance.

Class III Inline Centrifugal Blower Fans

RPM 3

TIP SPEED (FPM) = 5.236 x RPM OUTLET Diameter = 275/16" MAX. HP = 1.1533{Area = 4.07 Ft.2 (1000 )

C2000

WHEEL DIAMETER = 20" INLET Diameter = 275/16" MAX. RPM{ Area = 4.07 Ft.2 CL.1 2054

CL.2 2507

CL.3 2774

VOL. CFM OUTLET VEL. FPM .25 S.P. .5 S.P. .75 S.P. 1 S.P. 1.25 S.P. 1.5 S.P. 2 S.P. 2.5 S.P. 3 S.P. 3.5 S.P.
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
2442 2849 3256 600 700 800 611 682 755 0.26 0.36 0.49 710 766 831 0.39 0.50 0.65 815 853 904 0.55 0.66 0.81 921 944 981 0.74 0.86 1.01 1022 1035 1061 0.96 1.08 1.23 1123 1140 1.32 1.47 1296 — 2.01 — — — — — — — — — — — — — — — — — — —
3663 4070 4477 900 1000 1100 829 905 982 0.65 0.85 1.08 900 972 1045 0.83 1.05 1.30 965 1031 1101 1.00 1.24 1.52 1031 1089 1154 1.20 1.44 1.73 1100 1149 1207 1.42 1.66 1.95 1170 1211 1261 1.66 1.90 2.20 1311 1338 1374 2.21 2.45 2.74 1450 1465 1490 2.82 3.07 3.37 1583 1590 1606 3.49 3.75 4.05 1711 1720 — 4.48 4.79 —
4884 5291 5698 1200 1300 1400 1060 1139 1219 1.36 1.68 2.06 1119 1193 1269 1.60 1.94 2.33 1173 1246 1319 1.84 2.21 2.62 1222 1293 1365 2.07 2.46 2.90 1270 1337 1407 2.30 2.70 3.16 1319 1382 1449 2.55 2.96 3.43 1420 1473 1532 3.10 3.51 3.99 1525 1568 1617 3.72 4.13 4.62 1631 1665 1706 4.41 4.82 5.31 1737 1763 1796 5.15 5.57 6.05
6105 6512 6919 1500 1600 1700 1301 1383 1463 2.50 3.01 3.56 1345 1423 1501 2.78 3.29 3.86 1392 1467 1543 3.09 3.61 4.20 1437 1511 1584 3.39 3.94 4.55 1479 1551 1624 3.68 4.26 4.89 1518 1589 1661 3.96 4.56 5.22 1595 1661 1730 4.55 5.17 5.87 1673 1734 1798 5.18 5.81 6.52 1754 1808 1867 5.87 6.50 7.23 1837 1885 1937 6.61 7.25 7.98
7326 7733 1800 1900 1539 1617 4.14 4.80 1580 1660 4.50 5.21 1619 1697 4.85 5.58 1658 1734 5.22 5.96 1697 1771 5.59 6.35 1733 1806 5.95 6.74 1801 1872 6.63 7.47 1865 1934 7.32 8.19 1929 1995 8.03 8.92 1995 2056 8.79 9.69
8140 8954 2000 2200 1712 1892 5.70 7.65 1740 1904 6.00 7.85 1775 1932 6.38 8.22 1809 1964 6.77 8.65 1845 1996 7.18 9.09 1880 2028 7.60 9.54 1945 2090 8.39 10.44 2005 2148 9.15 11.30 2062 2202 9.91 12.13 2120 2255 10.69 12.97
VOL. OUTLET VEL. 4 S.P. 4.5 S.P. 5 S.P. 5.5 S.P. 6 S.P. 6.5 S.P. 7 S.P. 7.5 S.P. 8 S.P. 8.5 S.P.
CFM FPM RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
4884 1200 1842 5.95 1945 6.79 2045 7.67 2142 8.58
5291 1300 1861 6.37 1958 7.22 2054 8.11 2147 9.04 2239 10.01 2329 11.00
5698 1400 1887 6.86 1979 7.71 2069 8.61 2159 9.55 2247 10.53 2334 11.54 2419 12.59 2502 13.65
6105 1500 1922 7.42 2007 8.27 2092 9.17 2176 10.12 2260 11.11 2344 12.13 2426 13.19 2506 14.28 2586 15.40 2664 16.54
6512 1600 1963 8.06 2042 8.91 2121 9.82 2201 10.76 2281 11.76 2360 12.79 2438 13.86 2516 14.96 2593 16.09 2668 17.25
6919 1700 2010 8.78 2083 9.64 2157 10.54 2232 11.49 2307 12.48 2382 13.52 2457 14.59 2531 15.70 2605 16.85 2678 18.02
7326 1800 2062 9.60 2130 10.45 2199 11.35 2269 12.30 2340 13.30 2411 14.34 2482 15.41 2552 16.53 2623 17.68 2693 18.86
7733 1900 2118 10.50 2182 11.36 2246 12.27 2312 13.22 2378 14.21 2445 15.25 2512 16.32 2579 17.44 2646 18.59 2713 19.78
8140 2000 2178 11.51 2238 12.37 2298 13.28 2360 14.23 2422 15.22 2485 16.26 2548 17.34 2612 18.45 2676 19.61 2739 20.80
8954 2200 2307 13.82 2360 14.70 2413 15.62 2467 16.57 2522 17.57 2578 18.61 2635 19.68 2692 20.80 2749 21.96
9768 2400 2444 16.53 2492 17.45 2540 18.39 2588 19.37 2638 20.37 2687 21.42 2738 22.50
10582 2600 2586 19.65 2631 20.63 2675 21.62 2719 22.63 2763 23.66
11396 2800 2730 23.19 2773 24.25

Power rating (BHP) does not include drive losses. Performance shown is fors with outlet duct. Data in bold face indicates quietest and most efficient performance.

Class I Inline Centrifugal Blower Fans

RPM 3

TIP SPEED (FPM) = 5.825 x RPM OUTLET Diameter = 305/16" MAX. HP = 2.0136 {Area = 5.01 Ft.2 (1000 )

C2220

WHEEL DIAMETER = 221/4" INLET Diameter = 305/16" MAX. RPM{ Area = 5.01 Ft.2 CL.1 1706

CL.2 2315

CL.3 2459

VOL. CFM OUTLET VEL. FPM .25 S.P. .5 S.P. .75 S.P. 1 S.P. 1.25 S.P. 1.5 S.P. 2 S.P. 2.5 S.P. 3 S.P. 3.5 S.P.
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
3006 3507 4008 600 700 800 526 585 649 0.29 0.40 0.54 622 665 716 0.46 0.58 0.73 720 749 789 0.68 0.80 0.96 813 833 862 0.91 1.05 1.22 902 914 935 1.17 1.32 1.50 — 992 1007 — 1.62 1.81 — — 1144 — — 2.47 — — — — — — — — — — — — — — — — — —
4509 5010 5511 900 1000 1100 714 782 850 0.72 0.94 1.21 773 834 897 0.92 1.16 1.44 836 888 946 1.16 1.40 1.69 900 946 996 1.42 1.67 1.97 966 1004 1049 1.72 1.97 2.28 1031 1063 1102 2.03 2.30 2.61 1158 1180 1209 2.72 3.01 3.34 1280 1294 1315 3.47 3.78 4.13 — 1404 1418 — 4.61 4.99 — — 1518 — — 5.89
6012 6513 7014 1200 1300 1400 919 989 1058 1.52 1.89 2.32 962 1029 1096 1.77 2.15 2.60 1006 1069 1133 2.03 2.43 2.89 1051 1110 1171 2.32 2.73 3.20 1098 1152 1209 2.64 3.05 3.53 1146 1196 1249 2.97 3.40 3.88 1244 1285 1330 3.72 4.15 4.66 1342 1376 1414 4.534.99 5.50 1439 1466 1498 5.415.88 6.42 1534 1555 1582 6.34 6.84 7.39
7515 8016 8517 1500 1600 1700 1128 1197 1267 2.80 3.34 3.95 1164 1232 1302 3.10 3.68 4.33 1199 1265 1332 3.42 4.01 4.67 1234 1298 1363 3.74 4.35 5.03 1269 1331 1394 4.08 4.70 5.39 1305 1364 1425 4.44 5.07 5.78 1380 1433 1489 5.22 5.87 6.59 1457 1504 1555 6.09 6.74 7.48 1535 1577 1622 7.02 7.69 8.44 1614 1651 1691 8.01 8.70 9.49
9018 9519 1800 1900 1336 1407 4.63 5.39 1371 1441 5.05 5.86 1400 1468 5.41 6.23 1429 1496 5.78 6.62 1458 1523 6.17 7.02 1487 1551 5.65 7.43 1547 1607 7.39 8.28 1608 1664 8.30 9.20 1671 1723 9.27 10.19 1736 1783 10.30 11.24
10020 11022 2000 2200 1478 1621 6.25 8.23 1511 1650 6.74 8.75 1537 1676 7.14 9.23 1563 1700 7.54 9.66 1589 1723 7.96 10.11 1616 1747 8.38 10.57 1668 1795 9.27 11.51 1722 1843 10.20 12.49 1777 1892 11.20 13.52 1833 1942 12.26 14.61
VOL. OUTLET VEL. 4 S.P. 4.5 S.P. 5 S.P. 5.5 S.P. 6 S.P. 6.5 S.P. 7 S.P. 7.5 S.P. 8 S.P. 8.5 S.P.
CFM FPM RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
6012 1200 1626 7.32 1716 8.34 1804 9.40
6513 1300 1643 7.84 1729 8.88 1813 9.97 1895 11.10
7014 1400 1665 8.41 1747 9.48 1827 10.59 1906 11.75 1983 12.93 2059 14.16
7515 1500 1692 9.05 1770 10.14 1847 11.28 1922 12.45 1996 13.67 2069 14.92 2141 16.20 2212 17.51
8016 1600 1724 9.76 1798 10.87 1871 12.03 1943 13.22 2014 14.46 2084 15.74 2153 17.04 2221 18.39 2289 19.76 2355 21.16
8517 1700 1761 10.54 1830 11.67 1899 12.84 1968 14.06 2036 15.32 2103 16.62 2170 17.95 2236 19.32 2300 20.72 2365 22.15
9018 1800 1801 11.40 1866 12.55 1932 13.74 1997 14.98 2062 16.26 2126 17.58 2190 18.94 2254 20.33 2316 21.75 2378 23.20
9519 1900 1844 12.34 1906 13.51 1968 14.72 2030 15.98 2092 17.28 2154 18.62 2215 20.00 2276 21.41 2336 22.85 2396 24.33
10020 2000 1891 13.38 1949 14.56 2008 15.79 2067 17.06 2126 18.38 2185 19.74 2244 21.14 2302 22.57 2360 24.04 2418 25.54
11022 2200 1993 15.76 2044 16.96 2097 18.22 2150 19.53 2203 20.88 2257 22.27 2311 23.71 2364 25.18 2418 26.69
12024 2400 2103 18.57 2149 19.80 2196 21.08 2244 22.42 2292 23.79 2341 25.22 2390 26.69 2439 28.19
13026 2600 2220 21.85 2262 23.11 2304 24.42 2347 25.78 2391 27.18 2435 28.63
14028 2800 2342 25.63 2380 26.92 2418 28.26 2458 29.65

Power rating (BHP) does not include drive losses. Performance shown is fors with outlet duct. Data in bold face indicates quietest and most efficient performance.

Class I Inline Centrifugal Blower Fans

Class III Inline Centrifugal Blower Fans Class II Inline Centrifugal Blower Fans

RPM 3

TIP SPEED (FPM) = 6.414 x RPM OUTLET Diameter = 331/4" MAX. HP = 3.2502{Area = 6.03 Ft.2 (1000 )

C2450

WHEEL DIAMETER = 241/2" INLET Diameter = 331/4" MAX. RPM{ Area = 6.03 Ft.2 CL.1 1563

CL.2 2097

CL.3 2269

VOL. CFM OUTLET VEL. FPM .25 S.P. .5 S.P. .75 S.P. 1 S.P. 1.25 S.P. 1.5 S.P. 2 S.P. 2.5 S.P. 3 S.P. 3.5 S.P.
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
3618 4221 4824 600 700 800 477 532 589 0.35 0.49 0.66 565 604 651 0.56 0.71 0.89 653 680 716 0.82 0.97 1.17 739 756 783 1.11 1.28 1.48 819 830 849 1.42 1.61 1.82 — 901 914 — 1.96 2.19 — — 1039 — — 2.99 — — — — — — — — — — — — — — — — — —
5427 6030 6633 900 1000 1100 649 710 772 0.88 1.14 1.46 702 758 815 1.12 1.40 1.74 759 807 859 1.40 1.70 2.05 818 859 905 1.73 2.03 2.39 877 912 952 2.08 2.39 2.76 936 965 1001 2.46 2.79 3.16 1052 1072 1098 3.30 3.64 4.04 1162 1175 1194 4.20 4.58 5.01 — 1275 1288 — 5.59 6.04 — 1371 1379 — 6.65 7.14
7236 7839 8442 1200 1300 1400 835 898 961 1.85 2.29 2.81 874 934 995 2.15 2.61 3.15 914 971 1029 2.47 2.953.51 955 1008 1063 2.81 3.313.88 997 1046 1098 3.20 3.704.28 1041 1086 1134 3.61 4.124.71 1130 1167 1208 4.51 5.04 5.64 1219 1249 1284 5.50 6.05 6.67 1307 1331 1361 6.56 7.13 7.78 1393 1412 1437 7.68 8.29 8.96
9045 9648 10251 1500 1600 1700 1024 1087 1150 3.39 4.05 4.79 1057 1119 1182 3.764.465.25 1089 1149 1210 4.144.865.66 1120 1179 1238 4.545.276.09 1152 1208 1266 4.955.706.56 1185 1239 1294 5.386.157.00 1253 1301 1352 6.33 7.11 7.99 1323 1366 1412 7.38 8.17 9.07 1394 1432 1473 8.51 9.32 10.23 1466 1499 1536 9.71 10.54 11.47
10854 11457 1800 1900 1214 1277 5.62 6.54 1245 1309 6.137.10 1271 1333 6.567.55 1298 1358 7.018.02 1324 1383 7.488.51 1351 1409 7.959.01 1405 1459 8.96 10.04 1460 1511 10.06 11.16 1518 1565 11.24 12.35 1576 1619 12.49 13.62
12060 13266 2000 2200 1342 1472 7.58 9.98 1372 1498 8.1710.61 1396 1522 8.6611.19 1420 1543 9.1411.72 1443 1565 9.6512.25 1467 1587 10.1612.81 1515 1630 11.23 13.96 1564 1674 12.37 15.15 1614 1718 13.58 16.40 1665 1763 14.87 17.72
VOL. OUTLET VEL. 4 S.P. 4.5 S.P. 5 S.P. 5.5 S.P. 6 S.P. 6.5 S.P. 7 S.P. 7.5 S.P. 8 S.P. 8.5 S.P.
CFM FPM RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
723678398442 1200 1300 1400 1477 1492 1512 8.87 9.50 10.20 1559 1570 1586 10.1110.77 11.50 1638 1647 1659 11.39 12.09 12.85 — 1721 1731 — 13.45 14.25 — 1794 1801 — 14.86 15.68 — — 1870 — — 17.17 — — 1937 — — 18.69 — — — — — — — — — — — — — — — — — —
9045964810251 1500 1600 1700 1537 1566 1599 10.98 11.83 12.78 1607 1633 1662 12.30 13.18 14.15 1677 1699 1725 13.67 14.58 15.57 1745 1764 1787 15.10 16.03 17.05 1813 1829 1849 16.57 17.53 18.58 1879 1893 1910 18.09 19.08 20.15 1944 1956 1970 19.64 20.67 21.77 2009 2017 2030 21.24 22.29 23.43 2071 2078 2089 22.87 23.96 25.12 — 2138 2147 — 25.66 26.86
108541145712060 1800 1900 2000 1635 1675 1717 13.8214.9716.23 1695 1731 1770 15.21 16.38 17.65 1754 1787 1824 16.66 17.85 19.14 1814 1844 1877 18.16 19.37 20.69 1873 1900 1931 19.72 20.95 22.29 1931 1956 1984 21.32 22.57 23.94 1989 2012 2037 22.96 24.24 25.63 2047 2067 2090 24.64 25.96 27.37 2104 2122 2143 26.37 27.71 29.15 2160 2176 2195 28.13 29.50 30.97
1326614472 2200 2400 1810 1910 19.1122.52 1857 1952 20.57 24.01 1904 1995 22.0925.56 1953 2038 23.6727.18 2001 2082 25.3128.85 2050 2126 27.00 30.58 2098 2171 28.74 32.36 2147 2215 30.53 34.18 2196 2260 32.36 36.06 2244 34.23
1567816884 2600 2800 2016 2127 26.4931.07 2054 2161 28.02 32.64 2092 2196 29.6134.27 2132 2232 31.2535.95 2171 2268 37.68 32.96 — 2212 — 34.71 — 2252 — 36.53 — — — — — — — — — — — —

Power rating (BHP) does not include drive losses. Performance shown is fors with outlet duct. Data in bold face indicates quietest and most efficient performance.

Class III Inline Centrifugal Blower Fans

RPM 3

TIP SPEED (FPM) = 7.069 x RPM OUTLET Diameter = 365/8" MAX. HP = 3.057{Area = 7.316 Ft.2 (1000 )

C2700

WHEEL DIAMETER = 27" INLET Diameter = 365/8" MAX. RPM{ Area = 7.316 Ft.2 CL.1 1579

CL.2 2077

CL.3 2509

VOL. CFM OUTLET VEL. FPM .25 S.P. .5 S.P. .75 S.P. 1 S.P. 1.25 S.P. 1.5 S.P. 2 S.P. 2.5 S.P. 3 S.P. 3.5 S.P.
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
3658 4390 5121 500 600 700 456 519 585 0.27 0.39 0.54 526 581 640 0.44 0.57 0.75 591 638 691 0.63 0.78 0.97 652 692 740 0.84 1.01 1.22 712 744 787 1.07 1.26 1.48 795 833 1.52 1.76 893 920 2.09 2.36 1005 — — 3.01 — — — — — — — — — — — — — —
5853 6584 7316 800 900 1000 652 719 786 0.73 0.97 1.25 703 768 834 0.97 1.24 1.57 749 810 874 1.21 1.51 1.85 794 851 911 1.48 1.79 2.16 836 890 948 1.76 2.08 2.47 878 929 983 2.05 2.40 2.80 958 1002 1052 2.69 3.06 3.50 1035 1073 1118 3.37 3.78 4.25 1109 1142 1182 4.09 4.54 5.04 1182 1209 1244 4.86 5.33 5.87
8048 8779 9511 1100 1200 1300 853 920 988 1.57 1.94 2.38 901 969 1036 1.95 2.39 2.88 939 1005 1072 2.27 2.75 3.29 974 1038 1104 2.59 3.09 3.67 1008 1070 1134 2.92 3.45 4.05 1041 1101 1163 3.27 3.81 4.43 1105 1161 1220 4.00 4.58 5.24 1167 1219 1274 4.79 5.40 6.09 1227 1276 1328 5.61 6.26 6.99 1285 1331 1380 6.48 7.16 7.92
10242 10974 11706 1400 1500 1600 1057 1127 1198 2.89 3.49 4.17 1103 1169 1236 3.44 4.06 4.76 1139 1207 1274 3.91 4.60 5.36 1170 1237 1305 4.33 5.06 5.88 1199 1265 1332 4.73 5.50 6.35 1227 1291 1357 5.145.936.82 1280 1342 1406 5.98 6.82 7.75 1332 1391 1453 6.877.748.71 1383 1440 1498 7.808.709.71 1432 1487 1543 8.77 9.70 10.74
12437 13169 1700 1800 1268 1338 4.93 5.76 1303 1371 5.52 6.38 1341 1407 6.20 7.11 1372 1439 6.78 7.76 1399 1466 7.30 8.34 1424 1491 7.808.88 1470 1536 8.78 9.92 1515 1579 9.7810.97 1559 1621 10.8212.04 1602 1662 11.89 13.15
13900 14632 1900 2000 1407 1476 6.66 7.65 1439 1509 7.34 8.41 1474 1541 8.10 9.19 1506 1573 8.82 9.98 1533 1600 9.46 10.68 1558 1625 10.0511.33 1602 1669 11.16 12.52 1643 1709 12.2613.68 1684 1748 13.3814.84 1723 1785 14.53 16.03
VOL. OUTLET VEL. 4 S.P. 4.5 S.P. 5 S.P. 5.5 S.P. 6 S.P. 6.5 S.P. 7 S.P. 7.5 S.P. 8 S.P. 8.5 S.P.
CFM FPM RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
7316 1000 1305 6.74 1365 7.65 1424 8.59 1482 9.56
8048 1100 1342 7.38 1398 8.32 1453 9.29 1507 10.29 1561 11.32 1614 12.39 1666 13.49
8779 1200 1384 8.09 1437 9.06 1489 10.06 1540 11.10 1590 12.16 1640 13.26 1689 14.38 1737 15.53 1786 16.71 1834 17.92
9511 1300 1431 8.89 1481 9.89 1530 10.93 1578 11.99 1625 13.09 1672 14.21 1719 15.37 1764 16.55 1810 17.75 1855 18.99
10242 1400 1480 9.77 1528 10.81 1574 11.88 1620 12.98 1665 14.11 1710 15.26 1754 16.45 1797 17.66 1841 18.89 1883 20.16
10974 1500 1533 10.74 1578 11.82 1622 12.92 1666 14.05 1709 15.22 1752 16.41 1794 17.62 1835 18.87 1876 20.14 1917 21.43
11706 1600 1587 11.82 1630 12.92 1673 14.06 1715 15.23 1756 16.43 1797 17.65 1837 18.90 1877 20.18 1916 21.48 1955 22.81
12437 1700 1644 13.00 1685 14.14 1726 15.31 1766 16.51 1806 17.74 1845 19.00 1883 20.29 1921 21.60 1959 22.94 1996 24.30
13169 1800 1702 14.29 1742 15.46 1781 16.67 1819 17.91 1857 19.17 1895 20.47 1932 21.79 1969 23.13 2005 25.51 2041 25.90
13900 1900 1762 15.70 1800 16.91 1837 18.15 1874 19.42 1911 20.72 1947 22.05 1983 23.41 2018 24.79 2053 26.19 2088 27.62
14632 2000 1823 17.24 1859 18.49 1896 19.76 1931 21.07 1967 22.40 2001 23.76 2036 25.15 2070 26.57 2104 28.01 2137 29.47
16095 2200 1948 20.71 1982 22.03 2016 23.38 2049 24.76 2082 26.16 2114 27.59 2147 29.05 2178 30.53 2210 32.04 2241 33.57
17558 2400 2077 24.75 2109 26.15 2140 27.58 2171 29.03 2202 30.50 2232 32.00 2263 33.53 2293 35.08 2322 36.66 2352 38.26
19022 2600 2208 29.37 2238 30.87 2268 32.39 2297 33.92 2326 35.47 2355 37.05 2383 38.65 2411 40.27 2439 41.91 2467 43.58
20485 2800 2341 34.62 2370 36.24 2398 37.85 2426 39.48 2453 41.11 2480 42.77 2507 44.45

Power rating (BHP) does not include drive losses. Performance shown is fors with outlet duct. Data in bold face indicates quietest and most efficient performance.

Class I Inline Centrifugal Blower Fans

RPM 3

TIP SPEED (FPM) = 7.854 x RPM OUTLET Diameter = 4011/16" MAX. HP = 5.177 {Area = 9.029 Ft.2 (1000 )

C3000

WHEEL DIAMETER = 30" INLET Diameter = 4011/16" MAX. RPM{ Area = 9.029 Ft.2 CL.1 1421

CL.2 1869

CL.3 2258

VOL. CFM OUTLET VEL. FPM .25 S.P. .5 S.P. .75 S.P. 1 S.P. 1.25 S.P. 1.5 S.P. 2 S.P. 2.5 S.P. 3 S.P. 3.5 S.P.
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
4515 5417 6320 500 600 700 410 467 527 0.33 0.48 0.67 473 523 576 0.54 0.71 0.92 532 574 622 0.78 0.97 1.20 587 623 666 1.04 1.25 1.51 641 670 708 1.32 1.55 1.83 715 749 1.88 2.18 — 804 828 — 2.58 2.92 — — 904 — — 3.72 — — — — — — — — — — — —
7223 8126 9029 800 900 1000 587 648 708 0.91 1.20 1.54 633 691 751 1.20 1.53 1.93 674 729 786 1.50 1.86 2.29 714 766 820 1.82 2.21 2.66 753 801 853 2.17 2.57 3.05 790 836 885 2.54 2.96 3.46 862 902 947 3.32 3.78 4.32 931 966 1006 4.16 4.66 5.25 998 1028 1064 5.05 5.60 6.22 1064 1088 1120 6.00 6.59 7.25
9932 10835 11738 1100 1200 1300 768 828 889 1.94 2.40 2.94 811 872 932 2.40 2.95 3.56 845 905 965 2.80 3.39 4.07 877 934 994 3.20 3.82 4.53 907 963 1020 3.61 4.26 5.00 937 991 1047 4.04 4.71 5.47 995 1045 1098 4.94 5.66 6.47 1050 1097 1147 5.91 6.67 7.52 1104 1148 1195 6.93 7.73 8.62 1157 1198 1242 8.00 8.84 9.78
12641 13544 14446 1400 1500 1600 951 1014 1078 3.57 4.31 5.15 992 1053 1112 4.25 5.02 5.87 1026 1086 1146 4.83 5.68 6.62 1053 1114 1174 5.34 6.25 7.26 1079 1139 1199 5.84 6.79 7.85 1104 1162 1221 6.34 7.32 8.42 1152 1208 1265 7.39 8.42 9.57 1199 1252 1307 8.48 9.56 10.75 1244 1296 1349 9.63 10.74 11.98 1289 1338 1389 10.82 11.98 13.26
15349 16252 1700 1800 1142 1204 6.09 7.11 1173 1234 6.82 7.88 1207 1267 7.65 8.77 1235 1295 8.37 9.58 1259 1319 9.01 10.29 1281 1341 9.6310.96 1323 1382 10.84 12.24 1364 1421 12.0813.54 1403 1459 13.36 14.87 1442 1495 14.68 16.23
17155 18058 1900 2000 1267 1329 8.23 9.45 1295 1358 9.06 10.39 1327 1387 10.00 11.34 1355 1415 10.89 12.31 1380 1440 11.68 13.19 1402 1462 12.4113.98 1442 1502 13.78 15.46 1479 1538 15.1416.88 1515 1573 16.52 18.32 1551 1607 17.93 19.78
VOL. OUTLET VEL. 4 S.P. 4.5 S.P. 5 S.P. 5.5 S.P. 6 S.P. 6.5 S.P. 7 S.P. 7.5 S.P. 8 S.P. 8.5 S.P.
CFM FPM RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
9029993210835 1000 1100 1200 1174 1208 1246 8.32 9.11 9.99 1228 1258 1293 9.44 10.27 11.19 1281 1308 1340 10.60 11.46 12.43 1334 1356 1386 11.80 12.70 13.70 — 1404 1431 — 13.98 15.01 — 1452 1476 — 15.2916.37 — 1499 1520 — 16.65 17.75 — — 1564 — — 19.17 — — 1607 — — 20.63 — — 1650 — — 22.12
117381264113544 1300 1400 1500 1288 1332 1379 10.97 12.06 13.26 1332 1375 1420 12.21 13.34 14.59 1377 1417 1460 13.49 14.66 15.95 1420 1458 1499 14.81 16.02 17.35 1463 1499 1538 16.16 17.41 18.79 1505 1539 1576 17.55 18.84 20.26 1547 1578 1614 18.97 20.30 21.76 1588 1618 1652 20.43 21.80 23.29 1629 1656 1689 21.9223.33 24.86 1670 1695 1725 23.44 24.89 26.46
144461534916252 1600 1700 1800 1428 1479 1532 14.59 16.05 17.64 1467 1517 1568 15.9517.4519.09 1506 1553 1603 17.36 18.90 20.58 1543 1589 1637 18.8020.3922.11 1580 1625 1672 20.28 21.91 23.67 1617 1660 1705 21.7923.46 25.27 1653 1695 1739 23.3425.05 26.90 1689 1729 1772 24.91 26.67 28.56 1724 1763 1804 26.5228.32 30.25 1759 1797 1837 28.16 30.00 31.97
17155 18058 19864 1900 2000 2200 1586 1640 1753 19.3921.2825.57 1620 1673 1784 20.88 22.82 27.20 1654 1706 1814 22.41 24.40 28.87 1687 1738 1844 23.98 26.01 30.56 1720 1770 1874 25.59 27.66 32.30 1753 1801 1903 27.2329.3434.06 1785 1832 1932 28.9031.0535.86 1817 1863 1961 30.60 32.80 37.69 1848 1893 1989 32.3434.5839.55 1879 1923 2017 34.10 36.38 41.44
21670 23475 25281 2400 2600 2800 1869 1987 2107 30.5536.2642.74 1898 2014 2133 32.28 38.12 44.74 1926 2041 2158 34.05 39.99 46.73 1954 2067 2183 35.84 41.88 48.74 1982 2093 2208 37.66 43.79 50.76 2009 2119 2232 39.5145.7452.80 2036 2145 2256 41.4047.7154.87 — 2063 2170 — 43.31 49.72 — 2090 2195 — 45.2651.75 — 2116 2220 — 47.23 53.81

Power rating (BHP) does not include drive losses. Performance shown is fors with outlet duct. Data in bold face indicates quietest and most efficient performance.

Class I Inline Centrifugal Blower Fans

RPM 3

TIP SPEED (FPM) = 8.639 x RPM OUTLET Diameter = 443/4" MAX. HP = 8.337{Area = 10.922 Ft.2 (1000 )

C3300

WHEEL DIAMETER = 33" INLET Diameter = 443/4" MAX. RPM{ Area = 10.922 Ft.2 CL.1 1292

CL.2 1699

CL.3 2053

VOL. CFM OUTLET VEL. FPM .25 S.P. .5 S.P. .75 S.P. 1 S.P. 1.25 S.P. 1.5 S.P. 2 S.P. 2.5 S.P. 3 S.P. 3.5 S.P.
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
5461 6553 7645 500 600 700 373 425 479 0.40 0.58 0.81 430 475 524 0.65 0.86 1.12 483 522 566 0.94 1.17 1.46 534 566 606 1.26 1.51 1.82 582 609 644 1.60 1.88 2.22 650 681 2.27 2.63 — 731 753 — 3.12 3.53 — — 822 — — 4.50 — — — — — — — — — — — —
8738 9830 10922 800 900 1000 534 589 643 1.10 1.45 1.86 575 628 683 1.45 1.85 2.34 613 663 715 1.81 2.25 2.77 649 696 746 2.21 2.67 3.22 684 728 775 2.63 3.11 3.69 718 760 804 3.07 3.58 4.18 784 820 861 4.01 4.58 5.23 847 878 915 5.03 5.64 6.35 908 934 967 6.11 6.77 7.53 967 989 1018 7.26 7.97 8.77
12014 13106 14199 1100 1200 1300 698 753 808 2.34 2.91 3.56 737 793 847 2.91 3.56 4.31 768 822 877 3.39 4.10 4.92 797 850 903 3.87 4.62 5.48 825 875 928 4.37 5.15 6.05 852 901 952 4.88 5.70 6.62 904 950 998 5.98 6.84 7.83 955 998 1043 7.15 8.07 9.10 1004 1044 1086 8.39 9.35 10.43 1051 1089 1129 9.68 10.69 11.83
15291 1638317475 1400 1500 1600 865 922 980 4.32 5.21 6.23 902 957 1011 5.14 6.07 7.10 932 987 1042 5.84 6.87 8.01 958 1012 1067 6.46 7.568.78 981 1035 1090 7.07 8.219.49 1004 1057 1110 7.68 8.8610.18 1047 1098 1150 8.94 10.18 11.57 1090 1138 1188 10.26 11.56 13.01 1131 1178 1226 11.65 13.0014.50 1172 1216 1263 13.09 14.50 16.05
18567 19660 1700 1800 1038 1095 7.368.61 1066 1121 8.25 9.54 1097 1151 9.25 10.62 1122 1177 10.12 11.59 1144 1199 10.90 12.45 1165 1220 11.65 13.26 1203 1257 13.12 14.82 1240 1292 14.6116.38 1275 1326 16.16 17.99 1310 1360 17.76 19.64
20752 21844 1900 2000 1152 1208 9.9511.43 1178 1234 10.97 12.57 1206 1261 12.10 13.72 1232 1287 13.18 14.90 1255 1309 14.14 15.96 1274 1329 15.02 16.92 1311 1365 16.68 18.70 1345 1398 18.3220.43 1378 1430 19.99 22.17 1410 1461 21.70 23.94
VOL. OUTLET VEL. 4 S.P. 4.5 S.P. 5 S.P. 5.5 S.P. 6 S.P. 6.5 S.P. 7 S.P. 7.5 S.P. 8 S.P. 8.5 S.P.
CFM FPM RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
10922 1000 1068 10.07 1117 11.42 1165 12.83 1212 14.28
12014 1100 1098 11.02 1144 12.42 1189 13.87 1233 15.37 1277 16.91 1320 18.51 1363 20.15
13106 1200 1133 12.09 1176 13.54 1218 15.04 1260 16.58 1301 18.17 1341 19.80 1382 21.48 1422 23.20 1461 24.96 1500 26.77
14199 1300 1171 13.28 1211 14.78 1251 16.32 1291 17.92 1330 19.55 1368 21.23 1406 22.95 1444 24.72 1481 26.52 1518 28.36
15291 1400 1211 14.59 1250 16.14 1288 17.74 1326 19.38 1362 21.07 1399 22.80 1435 24.57 1471 26.38 1506 28.23 1541 30.11
16383 1500 1254 16.05 1291 17.65 1327 19.30 1363 20.99 1398 22.73 1433 24.51 1467 26.33 1501 28.19 1535 30.08 1568 32.01
17475 1600 1299 17.65 1334 19.30 1369 21.01 1403 22.75 1437 24.54 1470 26.37 1503 28.24 1535 30.15 1568 32.09 1599 34.07
18567 1700 1345 19.41 1379 21.12 1412 22.87 1445 24.67 1477 26.51 1509 28.39 1541 30.31 1572 32.27 1603 34.26 1633 36.30
19660 1800 1393 21.35 1425 23.10 1457 24.90 1489 26.75 1520 28.64 1550 30.58 1581 32.55 1611 34.56 1640 36.61 1670 38.69
20752 1900 1441 23.46 1473 25.26 1503 27.12 1534 29.02 1564 30.96 1593 32.94 1622 34.97 1651 37.03 1680 39.13 1708 41.26
21844 2000 1491 25.75 1521 27.61 1551 29.52 1580 31.47 1609 33.46 1638 35.50 1666 37.57 1694 39.69 1721 41.84 1749 44.02
24028 2200 1594 30.94 1622 32.91 1649 34.93 1676 36.98 1703 39.08 1730 41.22 1756 43.39 1782 45.61 1808 47.86 1834 50.15
26213 2400 1699 36.97 1725 39.06 1751 41.20 1776 43.36 1802 45.57 1827 47.81 1851 50.09 1876 52.41 1900 54.76 1924 57.15
28397 2600 1806 43.88 1831 46.12 1855 48.38 1879 50.67 1903 52.99 1927 55.34 1950 57.73 1973 60.16 1996 62.61 2018 65.11
30582 2800 1915 51.71 1939 54.13 1962 56.54 1985 58.97 2007 61.42 2029 63.89 2051 66.39

Power rating (BHP) does not include drive losses. Performance shown is fors with outlet duct. Data in bold face indicates quietest and most efficient performance.

Class I Inline Centrifugal Blower Fans

RPM 3

TIP SPEED (FPM) = 9.556 x RPM OUTLET Diameter = 491/2" MAX. HP = 12.54 {Area = 13.4 Ft.2 (1000 )

C3650

WHEEL DIAMETER = 361/2" INLET Diameter = 491/2" MAX. RPM{ Area = 13.4 Ft.2 CL.1 1195

CL.2 1572

Minimum horsepower required to start fan — 11/2 HP

CL.3 1852

VOL. CFM OUTLET VEL. FPM .25 S.P. .5 S.P. .75 S.P. 1 S.P. 1.25 S.P. 1.5 S.P. 2 S.P. 2.5 S.P. 3 S.P. 3.5 S.P.
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
6700 8040 9380 500 600 700 344 393 443 0.47 0.67 0.93 395 437 483 0.76 1.00 1.31 443 479 520 1.08 1.36 1.70 489 519 555 1.43 1.74 2.12 532 558 590 1.79 2.15 2.57 574 595 624 2.17 2.57 3.03 667 689 3.45 3.99 751 — — 5.01 — — 811 — — 6.08 — — — — — — — —
10720 12060 13400 800 900 1000 493 544 596 1.24 1.62 2.07 532 582 632 1.69 2.15 2.68 565 612 661 2.12 2.63 3.23 597 641 688 2.58 3.12 3.77 628 669 714 3.06 3.64 4.32 659 697 739 3.56 4.17 4.89 718 752 790 4.61 5.30 6.09 775 805 838 5.71 6.48 7.35 830 856 886 6.86 7.71 8.66 883 905 932 8.05 8.99 10.02
14740 16080 17420 1100 1200 1300 648 701 754 2.62 3.27 4.02 682 733 783 3.29 4.00 4.80 711 761 812 3.93 4.72 5.60 737 786 836 5.42 5.38 6.35 761 809 858 5.11 6.03 7.06 784 831 879 5.72 6.67 7.75 830 874 919 6.99 8.01 9.17 876 916 959 8.32 9.41 10.64 920 957 997 9.71 10.87 12.17 963 998 1035 11.15 12.39 13.76
18760 20100 21440 1400 1500 1600 806 859 912 4.86 5.81 6.91 835 887 940 5.72 6.77 7.97 862 913 964 6.59 7.69 8.92 886 936 987 7.42 8.61 9.91 908 958 1008 8.21 9.48 10.87 928 978 1028 8.96 10.31 11.78 966 1015 1064 10.47 11.92 13.52 1003 1050 1097 12.01 13.54 15.24 1040 1084 1130 13.61 15.22 16.99 1075 1118 1162 15.27 16.94 18.78
22780 24120 1700 1800 967 1023 8.20 9.69 993 1046 9.30 10.77 1015 1067 10.29 11.83 1037 1088 11.34 12.92 1059 1109 12.39 14.04 1078 1128 13.39 15.13 1113 1163 15.28 17.18 1146 1195 17.10 19.13 1177 1225 18.93 21.06 1207 1254 20.80 23.01
25460 26800 1900 2000 1078 1130 11.3212.93 1099 1151 12.38 14.12 1120 1173 13.54 15.42 1140 1191 14.66 16.58 1160 1210 15.84 17.80 1179 1229 17.01 19.05 1213 1263 19.24 21.45 1244 1294 21.33 23.70 1273 1323 23.37 25.87 1301 1350 25.41 28.02
VOL. CFM OUTLET VEL. FPM 4 S.P. 4.5 S.P. 5 S.P. 5.5 S.P. 6 S.P. 6.5 S.P. 7 S.P. 7.5 S.P. 8 S.P. 8.5 S.P.
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
12060 1340014740 900 1000 1100 953 977 1006 10.30 11.41 12.62 1000 1022 1047 11.65 12.85 14.14 1046 1065 1088 13.04 14.32 15.69 1107 1128 15.82 17.27 1148 1167 17.35 18.89 1206 — — 20.54 — — 1244 —— 22.21 — — 1281 — — 23.92 — — — — — — — — — — — — — —
1608017420 18760 1200 1300 1400 1038 1073 1111 13.95 15.3916.98 1077 1110 1146 15.54 17.07 18.73 1116 1147 1181 17.18 18.78 20.52 1154 1183 1215 18.84 20.53 22.35 1191 1218 1248 20.54 22.31 24.21 1227 1253 1282 22.27 24.12 26.10 1263 1287 1314 24.03 25.96 28.03 1299 1321 1347 25.81 27.83 29.98 1334 1354 1379 27.62 29.72 31.95 1368 1387 1410 29.46 31.64 33.96
20100 21440 22780 1500 1600 1700 1151 1193 1237 18.7220.6322.72 1184 1225 1267 20.54 22.52 24.68 1217 1256 1296 22.41 24.46 26.69 1250 1287 1326 24.31 26.44 28.74 1282 1317 1355 26.25 28.4630.83 1313 1347 1384 28.23 30.51 32.95 1345 1377 1412 30.23 32.59 35.11 1375 1407 1441 32.26 34.70 37.31 1406 1436 1469 34.32 36.84 39.53 1436 1465 1497 36.41 39.01 41.77
24120 25460 26800 1800 1900 2000 1282 1329 1376 25.0027.4830.17 1311 1356 1402 27.03 29.58 32.35 1339 1383 1428 29.11 31.73 34.57 1367 1410 1454 31.23 33.92 36.82 1395 1436 1479 33.3936.1539.12 1422 1462 1504 35.59 38.42 41.46 1450 1489 1529 37.82 40.72 43.84 1477 1515 1554 40.0943.0646.25 1504 1540 1579 42.39 45.44 48.69 1530 1566 1604 44.71 47.84 51.17
29480 32160 2200 2400 1473 1572 36.1843.05 1498 1596 38.54 45.63 1522 1618 40.92 48.20 1545 1640 43.32 50.78 1568 1662 45.7653.38 1592 1684 48.24 56.00 1615 1705 50.75 58.66 1638 1726 53.3061.35 1661 1748 55.89 64.07 1684 1769 58.50 66.83
34840 37520 2600 2800 1672 1772 50.7859.37 1695 1795 53.64 62.56 1717 1816 56.45 65.66 1738 1837 59.24 68.70 1758 — 62.02— 1779 — 54.82 — 1799 — 67.63 — 1819 — 70.47— 1839 — 73.33 — — — — —

Power rating (BHP) does not include drive losses. Performance shown is fors with outlet duct. Data in bold face indicates quietest and most efficient performance.

Class III Inline Centrifugal Blower Fans

RPM 3

TIP SPEED (FPM) = 10.54 x RPM OUTLET Diameter = 547/16" MAX. HP = 20.45{Area = 16.163 Ft.2 (1000 )

C4020

WHEEL DIAMETER = 401/4" INLET Diameter = 547/16" MAX. RPM{ Area = 16.163 Ft.2 CL.1 1083

CL.2 1426

Minimum horsepower required to start fan — 11/2 HP

CL.3 1679

VOL. CFM OUTLET VEL. FPM .25 S.P. .5 S.P. .75 S.P. 1 S.P. 1.25 S.P. 1.5 S.P. 2 S.P. 2.5 S.P. 3 S.P. 3.5 S.P.
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
8082 9698 11314 500 600 700 312 356 402 0.57 0.82 1.13 358 396 438 0.93 1.22 1.59 402 434 471 1.32 1.65 2.07 443 471 504 1.73 2.12 2.58 483 506 535 2.18 2.61 3.12 521 540 566 2.64 3.12 3.68 605 625 4.20 4.86 — — 681 — — 6.10 — — 735 — — 7.40 — — — — — —
12930 14547 16163 800 900 1000 447 493 540 1.51 1.96 2.52 482 527 573 2.06 2.61 3.26 512 555 600 2.58 3.20 3.93 541 581 624 3.14 3.80 4.59 569 607 647 3.72 4.42 5.25 597 632 671 4.33 5.08 5.95 651 682 716 5.60 6.44 7.40 703 730 760 6.94 7.88 8.93 753 776 803 8.34 9.38 10.53 801 821 845 9.79 10.93 12.18
17779 19396 21012 1100 1200 1300 588 636 684 3.19 3.98 4.89 618 664 710 4.01 4.86 5.83 645 690 736 4.78 5.73 6.81 668 713 758 5.50 6.54 7.72 690 734 778 6.22 7.33 8.58 711 754 797 6.96 8.11 9.43 753 792 834 8.49 9.74 11.15 794 831 869 10.12 11.44 12.94 834 868 904 11.81 13.22 14.80 874905 939 13.55 15.06 16.73
22628 24245 25861 1400 1500 1600 731 779 827 5.91 7.07 8.40 757 805 853 6.95 8.24 9.69 782 828 874 8.01 9.35 10.84 804 849 895 9.03 10.47 12.05 823 869 914 9.98 11.53 13.22 842 887 932 10.90 12.53 14.33 876 920 965 12.73 14.49 16.44 910 952 995 14.61 16.47 18.53 943 983 1024 16.56 18.50 20.65 975 1013 1053 18.57 20.60 22.84
2747729093 1700 1800 877 927 9.97 11.79 901 949 11.31 13.10 921 968 12.52 14.38 941 987 13.80 15.71 960 1006 15.07 17.08 978 1023 16.2818.40 1010 1055 18.5820.89 1039 1083 20.79 23.26 1067 1111 23.02 25.61 1095 1137 25.29 27.98
30710 32326 1900 2000 977 1024 13.76 15.72 996 1044 15.05 17.17 1016 1064 16.4618.75 1033 1080 17.83 20.16 1052 1098 19.26 21.65 1069 1115 20.69 23.16 1100 1146 23.39 26.08 1128 1174 25.94 28.82 1155 1199 28.4231.46 1180 1224 30.90 34.07
VOL. CFM OUTLET VEL. FPM 4 S.P. 4.5 S.P. 5 S.P. 5.5 S.P. 6 S.P. 6.5 S.P. 7 S.P. 7.5 S.P. 8 S.P. 8.5 S.P.
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
14547 1616317779 900 1000 1100 865 886 912 12.53 13.88 15.35 907 926 950 14.17 15.62 17.19 949 965 987 15.86 17.41 19.08 1004 1023 19.23 21.01 1041 1058 21.10 22.97 1093 24.97 1128 27.01 1161 29.08
193962101222628 1200 1300 1400 941 973 1007 16.96 18.72 20.65 977 1007 1039 18.90 20.76 22.78 1012 1040 1071 20.89 22.84 24.96 1046 1072 1102 22.9124.9727.18 1080 1104 1132 24.9827.1329.44 1113 1136 1162 27.0829.3331.74 1146 1167 1192 29.2231.5734.08 1178 1198 1221 31.39 33.84 36.45 1209 1228 1250 33.59 36.14 38.86 1241 1258 1279 35.83 38.48 41.29
242452586127477 1500 1600 1700 1044 1082 1122 22.76 25.08 27.62 1074 1111 1149 24.9827.3930.01 1104 1139 1176 27.2529.7432.45 1133 1167 1202 29.57 32.15 34.95 1162 1194 1229 31.93 34.60 37.49 1191 1222 1255 34.3337.10 40.07 1219 1249 1281 36.7639.63 42.70 1247 1276 1307 39.23 42.20 45.36 1275 1302 1332 41.74 44.80 48.06 1302 1329 1357 44.27 47.44 50.80
290933071032326 1800 1900 2000 1163 1205 1248 30.40 33.42 36.68 1189 1230 1272 32.8735.9739.34 1214 1254 1295 35.3938.5842.03 1240 1278 1318 37.97 41.24 44.78 1265 1302 1341 40.60 43.96 47.57 1290 1326 1364 43.27 46.72 50.42 1315 1350 1387 45.99 49.52 53.31 1339 1374 1409 48.7552.3756.24 1364 1397 1432 51.5455.2559.21 1388 1420 1454 54.37 58.17 62.23
3555938791 2200 2400 1336 1426 44.00 52.35 1358 1447 46.8755.49 1380 1467 49.7658.62 1401 1487 52.68 61.75 1422 1507 55.65 64.91 1443 1527 58.66 68.10 1464 1546 61.71 71.33 1485 1566 64.8174.60 1506 1585 67.9677.91 1527 1604 71.14 81.26
4202445256 2600 2800 1516 1607 61.75 72.20 1537 1628 65.2376.07 1557 1647 68.6579.84 1576 1665 72.04 83.54 1594 75.42 1613 78.82 1631 82.24 1649 85.69 1667 89.18

Power rating (BHP) does not include drive losses. Performance shown is fors with outlet duct. Data in bold face indicates quietest and most efficient performance.

Class I Inline Centrifugal Blower Fans

Class III Inline Centrifugal Blower Fans

Class II Inline Centrifugal Blower Fans

RPM 3

TIP SPEED (FPM) = 11.65 x RPM OUTLET Diameter = 601/2" MAX. HP = 33.78 {Area = 19.963 Ft.2 (1000 )

C4450

WHEEL DIAMETER = 441/2" INLET Diameter = 601/2" MAX. RPM{ Area = 19.963 Ft.2 CL.1 980

CL.2 1290

Minimum horsepower required to start fan — 11/2 HP

CL.3 1519

VOL. CFM OUTLET VEL. FPM .25 S.P. .5 S.P. .75 S.P. 1 S.P. 1.25 S.P. 1.5 S.P. 2 S.P. 2.5 S.P. 3 S.P. 3.5 S.P.
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
9982 11978 13974 500 600 700 282 322 363 0.70 1.00 1.38 324 358 396 1.13 1.49 1.95 363 393 426 1.61 2.02 2.53 401 426 456 2.12 2.59 3.15 437 458 484 2.66 3.19 3.81 471 488 512 3.22 3.82 4.50 547 565 5.13 5.94 616 7.45 665 9.04 — — — —
15970 17967 19963 800 900 1000 405 446 489 1.84 2.40 3.08 436 477 518 2.51 3.19 3.99 463 502 542 3.16 3.91 4.81 489 526 564 3.83 4.64 5.61 515 549 586 4.54 5.41 6.42 540 572 607 5.29 6.20 7.27 589 617 648 6.85 7.88 9.05 636 660 688 8.48 9.63 10.92 681 702 727 10.19 11.47 12.87 725 743 765 11.97 13.36 14.89
21959 23956 25952 1100 1200 1300 532 575 618 3.90 4.87 5.98 559 601 643 4.90 5.94 7.13 583 624 666 5.84 7.01 8.32 604 645 686 6.72 8.00 9.44 624 664 704 7.60 8.96 10.49 643 682 721 8.50 9.92 11.52 681 717 754 10.38 11.90 13.63 718 751 786 12.37 13.99 15.81 755 785 818 14.43 16.16 18.09 790 819 849 16.57 18.41 20.45
27948 29944 31941 1400 1500 1600 661 704 748 7.23 8.64 10.27 685 728 771 8.50 10.07 11.84 707 748 790 9.79 11.42 13.25 727 768 809 11.03 12.79 14.73 745 786 827 12.20 14.09 16.16 761 802 843 13.32 15.32 17.51 793 832 872 15.56 17.72 20.10 823 861 900 17.86 20.13 22.65 853 889 926 20.24 22.62 25.25 882 917 953 22.70 25.18 27.92
33937 35933 1700 1800 793 839 12.19 14.41 815 858 13.82 16.01 833 875 15.30 17.58 851 893 16.86 19.21 868 910 18.41 20.87 884 925 19.90 22.49 913 954 22.70 25.54 940 980 25.42 28.44 965 1004 28.14 31.30 990 1028 30.92 34.20
37930 39926 1900 2000 884 926 16.82 19.21 901 944 18.39 20.98 919 962 20.12 22.91 935 977 21.79 24.64 951 993 23.55 26.46 967 1008 25.29 28.31 995 1036 28.60 31.88 1021 1062 31.71 35.23 1044 1085 34.74 38.46 1067 1107 37.77 41.64
VOL. CFM OUTLET VEL. FPM 4 S.P. 4.5 S.P. 5 S.P. 5.5 S.P. 6 S.P. 6.5 S.P. 7 S.P. 7.5 S.P. 8 S.P. 8.5 S.P.
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
17967 1996321959 900 1000 1100 782 802 825 15.31 16.96 18.76 820 838 859 17.32 19.10 21.02 858 873 893 19.39 21.28 23.32 908 925 23.51 25.68 942 957 25.79 28.08 989 30.53 1020 33.02 1051 35.55 — — — — — — — —
239562595227948 1200 1300 1400 851 880 911 20.73 22.88 25.24 884 911 940 23.10 25.37 27.84 915 941 968 25.53 27.92 30.50 946 970 996 28.01 30.52 33.22 977 999 1024 30.53 33.1635.99 1007 1028 1051 33.10 35.85 38.80 1036 1056 1078 35.71 38.59 41.66 1065 1083 1105 38.37 41.36 44.56 1094 1111 1131 41.06 44.18 47.50 1122 1138 1157 43.80 47.04 50.47
2994431941 33937 1500 1600 1700 944 979 1015 27.82 30.6633.76 971 1004 1039 30.53 33.4836.68 998 1030 1063 33.3136.36 39.67 1025 1055 1087 36.14 39.30 42.72 1051 1080 1111 39.03 42.30 45.82 1077 1105 1135 41.96 45.34 48.98 1103 1130 1159 44.94 48.44 52.19 1128 1154 1182 47.96 51.58 55.45 1153 1178 1205 51.02 54.76 58.75 1178 1202 1228 54.12 57.98 62.09
35933 37930 39926 1800 1900 2000 1052 1090 1129 37.1640.8444.84 1075 1112 1150 40.1843.9748.08 1098 1134 1171 43.26 47.16 51.38 1121 1156 1192 46.42 50.41 54.73 1144 1178 1213 49.63 53.73 58.15 1167 1200 1234 52.90 57.10 61.63 1189 1221 1254 56.22 60.53 65.16 1211 1242 1275 59.59 64.01 68.74 1233 1264 1295 63.00 67.54 72.38 1255 1285 1315 66.46 71.11 76.06
43919 47911 2200 2400 1208 1290 53.7863.99 1228 1309 57.2967.83 1248 1327 60.82 71.65 1267 1345 64.39 75.48 1286 1363 68.02 79.34 1306 1381 71.70 83.24 1325 1399 75.43 87.19 1343 1416 79.23 91.18 1362 1433 83.07 95.23 1381 1451 86.96 99.33
51904 55896 2600 2800 1372 1454 75.4888.25 1390 1472 79.7392.98 1408 1490 83.91 97.59 1425 1506 88.05 102.12 — 1442 — 92.19 — 1459 — 96.34 — 1475 — 100.53 — 1492 — 104.74 — 1508 — 109.00 — — — —

Power rating (BHP) does not include drive losses. Performance shown is fors with outlet duct. Data in bold face indicates quietest and most efficient performance.

Class I Inline Centrifugal Blower Fans

RPM 3

TIP SPEED (FPM) = 12.83 x RPM OUTLET Diameter = 667/16" MAX. HP = 54.68{Area = 24.074 Ft.2 (1000 )

C4900

WHEEL DIAMETER = 49" INLET Diameter = 667/16" MAX. RPM{ Area = 24.074 Ft.2 CL.1 890

CL.2 1171

Minimum horsepower required to start fan — 5 HP

CL.3 1380

VOL. CFM OUTLET VEL. FPM .25 S.P. .5 S.P. .75 S.P. 1 S.P. 1.25 S.P. 1.5 S.P. 2 S.P. 2.5 S.P. 3 S.P. 3.5 S.P.
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
12037 14444 16852 500 600 700 256 293 330 0.85 1.21 1.67 294 325 360 1.37 1.80 2.36 330 357 387 1.95 2.45 3.07 364 387 414 2.57 3.14 3.82 397 416 440 3.22 3.87 4.62 428 443 465 3.91 4.63 5.45 497 513 6.22 7.20 — — 560 — — 9.04 — — 604 — — 10.96 — — — — — —
19259 21667 24074 800 900 1000 368 405 444 2.23 2.91 3.73 396 433 471 3.05 3.87 4.83 421 456 493 3.83 4.74 5.83 444 478 513 4.65 5.63 6.80 468 499 532 5.51 6.56 7.79 491 519 551 6.41 7.52 8.81 535 560 588 8.30 9.55 10.97 577 599 624 10.29 11.68 13.24 618 637 660 12.36 13.90 15.61 658 674 694 14.51 16.20 18.05
26481 28889 31296 1100 1200 1300 483 522 562 4.73 5.90 7.25 508 546 584 5.94 7.20 8.65 530 567 604 7.08 8.50 10.09 549 586 623 8.15 9.70 11.44 567 603 639 9.22 10.86 12.72 584 619 655 10.31 12.02 13.97 619 651 685 12.59 14.43 16.52 652 682 714 14.99 16.96 19.17 685 713 743 17.50 19.60 21.93 718 743 771 20.09 22.33 24.79
33704 36111 38518 1400 1500 1600 601 640 679 8.76 10.48 12.46 622 661 700 10.31 12.21 14.36 642 680 718 11.87 13.85 16.07 660 698 735 13.38 15.51 17.86 676 714 751 14.79 17.08 19.59 691 728 766 16.16 18.58 21.23 720 756 792 18.87 21.48 24.37 747 782 817 21.65 24.41 27.46 774 807 841 24.54 27.42 30.61 801 833 865 27.52 30.53 33.85
40926 43333 1700 1800 720 762 14.78 17.47 740 779 16.76 19.41 756 795 18.55 21.32 773 811 20.44 23.29 789 826 22.33 25.31 803 840 24.13 27.27 829 866 27.53 30.96 853 890 30.82 34.48 876 912 34.12 37.96 899 934 37.49 41.47
45741 48148 1900 2000 803 841 20.40 23.29 818 857 22.30 25.44 834 874 24.39 27.78 849 888 26.42 29.87 864 902 28.55 32.08 878 916 30.66 34.33 904 941 34.67 38.66 927 964 38.45 42.72 949 985 42.12 46.63 969 1006 45.80 50.49
VOL. CFM OUTLET VEL. FPM 4 S.P. 4.5 S.P. 5 S.P. 5.5 S.P. 6 S.P. 6.5 S.P. 7 S.P. 7.5 S.P. 8 S.P. 8.5 S.P.
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
21667 24074 26481 900 1000 1100 710 728 749 18.57 20.57 22.75 745 761 780 21.00 23.15 25.48 779 793 811 23.50 25.80 28.28 824 840 28.51 31.13 855 869 31.27 34.04 — — 898 — — 37.01 — — 926 — — 40.03 — — 954 — — 43.10 — — — — — — — — — — — —
28889 31296 33704 1200 1300 1400 773 799 828 25.13 27.74 30.60 802 827 854 28.01 30.76 33.76 831 854 879 30.96 33.85 36.98 859 881 905 33.96 37.00 40.28 887 907 930 37.02 40.21 43.63 914 933 955 40.13 43.47 47.04 941 959 979 43.30 46.79 50.51 967 984 1003 46.52 50.15 54.02 994 1009 1027 49.78 53.57 57.59 1019 1033 1050 53.10 57.03 61.20
36111 38518 40926 1500 1600 1700 857 889 921 33.73 37.17 40.94 882 912 944 37.02 40.59 44.48 907 935 966 40.39 44.08 48.10 931 958 988 43.82 47.65 51.79 955 981 1009 47.32 51.28 55.56 978 1004 1031 50.87 54.98 59.39 1002 1026 1052 54.48 58.73 63.28 1025 1048 1073 58.15 62.54 67.23 1047 1070 1094 61.86 66.40 71.23 1070 1091 1115 65.62 70.30 75.28
43333 45741 48148 1800 1900 2000 955 990 1025 45.05 49.52 54.37 976 1010 1045 48.71 53.31 58.30 997 1030 1064 52.46 57.18 62.29 1018 1050 1083 56.28 61.13 66.36 1039 1070 1102 60.17 65.15 70.51 1059 1089 1120 64.13 69.24 74.72 1080 1109 1139 68.16 73.39 79.00 1100 1128 1158 72.25 77.61 83.35 1120 1148 1176 76.39 81.89 87.76 1140 1167 1195 80.58 86.22 92.22
52963 57778 2200 2400 1098 1171 65.21 77.59 1116 1188 69.46 82.24 1133 1205 73.74 86.88 1151 1222 78.07 91.52 1168 1238 82.47 96.20 1186 1254 86.93 100.93 1203 1270 91.46 105.71 1220 1286 96.06 110.56 1237 1302 100.72 115.47 1254 1318 105.44 120.43
62592 67407 2600 2800 1246 1320 91.52 107.01 1262 1337 96.67 112.74 1279 1353 101.74 118.33 1294 1368 106.76 123.82 — 1310 — 111.78 — 1325 — 116.82 — 1340 — 121.89 — 1355 — 127.00 — — — — — — — —

Power rating (BHP) does not include drive losses. Performance shown is fors with outlet duct. Data in bold face indicates quietest and most efficient performance.

Class I Inline Centrifugal Blower Fans

Class III Inline Centrifugal Blower Fans

Dimensions in inches Certified dimension prints furnished upon request.

FAN SIZE A B C D E F G H J K L M N P Q R S T V W Y Z AA AB AC AD BC1 BC2 ShafClass I t Dia. Class II O.D.
C1050 141/8 191/2 161/8 14 93/4 19 25/8 133/4 121/4 193/4 9/16 4 5/16 8 1/2-13 4 715/16 173/8 101/2 41/2 9/16 4 115/8 5 61/2 131/2 151/8 203/8 1 1 143/8
C1220 169/16 225/8 189/16 17 111/8 221/8 25/8 167/8 151/4 225/8 9/16 4 5/16 8 1/2-13 4 91/8 193/4 135/8 41/2 9/16 4 12 43/4 8 165/8 179/16 2211/16 1 13/16 1613/16
C1350 183/8 25 203/8 18 12 241/2 25/8 191/4 161/4 231/2 9/16 4 5/16 8 1/2-13 4 101/16 215/8 16 41/2 9/16 4 141/4 57/8 8 19 193/8 247/16 1 13/16 185/8
C1500 205/16 275/8 225/16 20 123/4 271/8 25/8 217/8 181/4 241/2 9/16 4 5/16 8 1/2-13 4 11 231/2 185/8 41/2 9/16 4 17 71/4 81/2 215/8 215/16 261/2 1 13/16 209/16
C1650 225/16 303/8 245/16 22 14 297/8 25/8 245/8 201/4 271/2 9/16 4 5/16 12 1/2-13 4 12 251/2 215/8 41/2 9/16 4 181/2 8 91/4 243/8 235/16 289/16 1 17/16 229/16
C1820 2411/16 333/8 2611/16 25 151/8 327/8 25/8 275/8 231/4 291/2 9/16 4 5/16 12 1/2-13 4 133/16 277/8 243/8 41/2 9/16 4 20 87/8 10 273/8 2511/16 31 13/16 17/16 2415/16
C2000 275/16 365/8 2913/16 27 161/4 361/8 25/8 307/8 251/4 301/4 9/16 6 5/16 12 1/2-13 4 149/16 305/8 275/8 41/2 9/16 4 22 93/4 107/8 305/8 289/16 333/8 13/16 17/16 279/16
C2220 305/16 401/2 3213/16 30 181/8 40 31/4 331/2 281/4 311/4 9/16 6 5/16 12 1/2-13 4 161/16 335/8 311/2 41/2 9/16 4 241/4 107/8 121/8 341/2 319/16 379/16 13/16 111/16 309/16
C2450 331/4 445/8 353/4 33 193/4 441/8 33/4 365/8 311/4 327/8 7/8 6 3/8 16 1/2-13 4 173/4 371/2 345/8 5 11/16 4 261/2 113/4 131/4 385/8 341/2 401/2 17/16 111/16 331/2
C2700 365/8 48 391/8 37 211/2 475/8 33/4 401/8 351/4 341/2 7/8 6 3/8 16 1/2-13 4 197/16 407/8 38 5 11/16 4 291/2 131/4 143/4 42 377/8 437/8 111/16 115/16 367/8
C3000 4011/16 533/8 433/16 41 231/2 53 33/4 451/2 391/4 38 7/8 6 3/8 16 1/2-13 6 211/2 45 433/8 5 11/16 6 32 141/2 16 473/8 4115/16 4715/16 111/16 115/16 4015/16
C3300 443/4 583/8 49 45 26 581/4 33/4 503/4 431/4 44 7/8 6 7/16 8 1/2-13 6 233/4 50 485/8 5 11/16 6 343/4 157/8 173/8 525/8 471/4 52 115/16 23/16 453/8
C3650 491/2 647/8 533/4 50 283/8 641/2 33/4 57 481/4 463/8 7/8 4 7/16 8 1/2-13 4 261/8 543/4 547/8 5 11/16 4 381/4 175/8 191/8 587/8 52 561/2 23/16 23/16 501/8
C4020 547/16 711/2 593/4 55 31 71 41/4 621/2 521/2 49 7/8 4 7/16 8 5/8-11 4 285/8 593/4 601/2 51/2 7/8 4 42 191/2 21 651/2 571/2 621/4 23/16 27/16 551/8
C4450 601/2 791/8 653/4 61 337/8 785/8 41/4 701/8 581/2 517/8 7/8 4 9/16 16 5/8-11 4 315/8 653/4 681/8 51/2 7/8 4 453/4 211/2 227/8 731/8 631/2 701/2 23/16 211/16 611/8
C4900 667/16 871/8 7113/16 67 37 865/8 41/4 781/8 641/2 54 7/8 4 9/16 16 5/8-11 4 3411/16 717/8 761/8 51/2 7/8 6 50 235/8 25 811/8 699/16 * 27/16 215/16 673/16

Motor Positions Shown Are Viewed From Discharge End

Dimensions in inches Certified dimension prints furnished upon request.

FAN SIZE A B C D E F G H J L M N P Q* MAX X AE BC Class I Shaft Dia. Class II MinFra Motor me K Max Fra Motor me K
C1050 141/8 191/2 161/8 14 93/4 19 25/8 133/4 121/4 9/16 4 5/16 8 27 3 37/8 x 6 151/8 1 1 48 153/8 184T 171/2
C1220 169/16 225/8 189/16 17 111/8 221/8 25/8 167/8 151/4 9/16 4 5/16 8 31 3 37/8 x 6 179/16 1 13/16 48 163/4 215T 201/2
C1350 183/8 25 203/8 18 12 241/2 25/8 191/4 161/4 9/16 4 5/16 8 32 3 37/8 x 6 193/8 1 13/16 48 171/2 215T 211/2
C1500 205/16 275/8 225/16 20 123/4 271/8 25/8 217/8 181/4 9/16 4 5/16 8 351/2 3 37/8 x 65/8 215/16 1 13/16 48 181/2 256T 231/2
C1650 225/16 303/8 245/16 22 14 297/8 25/8 245/8 201/4 9/16 4 5/16 12 361/2 31/2 47/8 x 8 235/16 1 17/16 48 191/2 256T 241/2
C1820 2411/16 333/8 2611/16 25 151/8 327/8 25/8 275/8 231/4 9/16 4 5/16 12 401/2 31/2 47/8 x 9 2511/16 13/16 17/16 48 205/8 286T 271/2
C2000 275/16 365/8 2913/16 27 161/4 361/8 25/8 307/8 251/4 9/16 6 5/16 12 413/4 31/2 47/8 x 9 289/16 13/16 17/16 48 22 286T 283/4
C2220 305/16 401/2 3213/16 30 181/8 40 31/4 331/2 281/4 9/16 6 5/16 12 43 31/2 47/8 x 10 319/16 13/16 111/16 48 233/8 286T 30
C2450 331/4 445/8 353/4 33 193/4 441/8 33/4 365/8 311/4 7/8 6 3/8 16 47 31/2 47/8 x11 341/2 17/16 111/16 48 243/4 326T 321/2
C2700 365/8 48 391/8 37 211/2 475/8 33/4 401/8 351/4 7/8 6 3/8 16 481/2 101/2 12 377/8 111/16 115/16 56 27 326T 34
C3000 4011/16 533/8 433/16 41 231/2 53 33/4 451/2 391/4 7/8 6 3/8 16 551/2 111/2 13 4115/16 111/16 115/16 182T 301/2 365T 391/2
C3300 443/4 583/8 49 45 26 581/4 33/4 503/4 431/4 7/8 6 7/16 8 571/2 121/2 14 471/4 115/16 23/16 182T 321/2 365T 411/2
C3650 491/2 647/8 533/4 50 283/8 641/2 33/4 57 481/4 7/8 4 7/16 8 621/2 14 16 52 23/16 23/16 182T 341/2 405T 45
C4020 547/16 711/2 593/4 55 31 71 41/4 621/2 521/2 7/8 4 7/16 8 66 15 17 571/2 23/16 27/16 213T 39 405T 471/2
C4450 601/2 791/8 653/4 61 337/8 785/8 41/4 701/8 581/2 7/8 4 9/16 16 69 161/2 19 631/2 23/16 211/16 213T 42 405T 501/2
C4900 667/16 871/8 7113/16 67 37 867/8 41/4 781/8 641/2 7/8 4 9/16 16 761/2 18 21 699/16 27/16 215/16 213T 443/4 445T 561/2

“Q” Dim. will vary based on motor frame size.

25

Correction Factor Table

AIR TEMP. DEG. F. 0 500 1000 1500 2000 2500 3000 3500 A 4000 LTITUDE 4500 IN FEET 5000 ABOVE S 5500 EA LEVE L 6000 6500 7000 7500 8000 8500 9000 10000
0.87 0.89 0.91 0.92 0.94 0.96 0.98 0.99 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 0.96 0.98 1.00 1.02 1.04 1.06 1.08 1.10 1.12 1.14 1.16 1.19 1.20 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 1.3 0 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

Procedure for Using Correction Factors

Example: Use of correction factor table.

Requirements: A Inline Centrifugal Blower Fan to deliver 14,740 cfm at 2.5" S.P. at 200°F and 3000 ft. above sea level. Data Needed to Fill Requirement: Fan size, BHP

and RPM.

  1. From table above, correction factor for 200°F and 3000 ft. above sea level = 1.40.
    1. 2.5" S.P. (design S.P.) x 1.40 = 3.50" S.P.
    2. (S.P. corrected to 70 degrees at sea level).
  2. Select from performance table a Inline Centrifugal Blower Fan to deliver 14,740 cfm at 3.5" S.P. Best selection indicates a No. C3650at 963 RPM and 11.15 BHP.
  3. Correct BHP by dividing 11.15 by 1.40. This equals 7.964 BHP (correct for 200°F at 3000 ft. altitude).

Recommended Selection: “Centrifan®” size C3650: capacity 14,740 cfm, S.P. 2.5", temperature 200°F, altitude 3000 ft., 963 RPM, 7.964 BHP.

TEMPERATURE OPERATING LIMITS
ARRANGEMENT STEEL CONSTRUCTION ARRANGEMENT 1 AND 9 ARRANGEMENT 4
Class I, II and III -20°F to 150°F -20°F to 100°F

Note: Contact Factory for Special Hi-Temperature Units

Wheel Weights and WR2 in Lbs. Ft2

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

FAN SIZE WEIGHT CLA SS I WR2 WEIGHT CLA SS II WR2
C1050 12.7 0.92 15.1 0.93
C1220 20.2 1.9 24.3 2.7
C1350 23.4 2.9 28.4 3.9
C1500 27.5 4.3 33.6 5.7
C1650 35 6.9 42.3 8.3
C1820 41 10.5 49.6 12.6
C2000 56.5 17 56.4 17.4
C2220 67.5 22.9 60.3 23
C2450 80.5 38.4 77.6 34.2
C2700 93 49 92 49
C3000 111 76 111 76
C3300 132 111 132 111
C3650 198 209 198 209
C4020 247 322 280 327
C4450 298 481 332 487
C4900 430 795 430 795

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

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.

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. 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.

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.

CentrifanTypical Specifications Upblast Class I

Furnish and install where shown on the plans NIS-CO Inline Centrifugal Blower Fans “Centrifan®” inline centrifugal fans having wheel diameters, outlet velocities, speeds and horsepower not to exceed that shown on the equipment schedule. Cataloged performance shall be based on tests made in accordance with AMCA Standard 210.

Fan housings shall be all welded cylindrical selections with flanged inlet and outlet connections. Inlet and outlet areas shall be identical to accommodate a single duct size. Housing shall contain multiple conversion vanes to minimize noise generation. Inner cylindrical section, entirely concentric with housing, thus removing the bearings and drive from the airstream. All units shall be statically and dynamically balanced.

All vertical fans shall be Arrangement No. 9 with motor mounted on an adjustable base welded to the housing. All horizontal fans shall be Arrangement No. 9, as above, or Arrangement No.1 with the motor mounted on the fan base. Arrangement No. 4 fans may be used as indicated on the schedule.

Fan wheels 27" diameter and larger shall have die formed hollow airfoil section blades. Fan wheels 241/2" and smaller in diameter shall have single plate backward inclined blades.

FAN SIZE A B C D
C1050 345/8 193/8 22 3
C1220 393/4 241/4 25 3
C1350 431/8 261/4 26 3
C1500 463/4 283/8 28 3
C1650 501/2 30 30 3
C1820 551/2 323/8 31 4
C2000 61 351/2 36 4
C2220 667/8 383/8 40 4
C2450 73 413/8 42 4
C2700 80 45 461/2 4
C3000 87 49 501/2 4
C3300 945/8 53 541/2 4
C3650 1037/8 58 58 4
C4020 1131/2 63 63 4
C4450 1241/8 69 69 4
C4900 1345/8 78 75 4

 

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