Series 7600 Centrifugal Airfoil Fan

Bulletin 7610-3 August 1993 Series 7600 Centrifugal Airfoil Fan Design 7610 Class I, II, & III

CML Northern Blower Inc. is one of the largest industrial fan companies in North America. In all that we do we are committed to the construction of an excellent product and the provision of outstanding customer service. Northern Blower quality is a tradition. From our first day we have devoted our best efforts to the production of high grade fan equipment. Every day we strive to improve. Our sales representatives are located coast-to-coast across the continent. Backed by the factory sales team, Northern Blower representatives are ready to provide product information and application advice whenever you need it. CML NORTHERN BLOWER Gordon Christie PRESIDENT/CEO

Description Index Series 7600 Centrifugal Airfoil Fans The Design 7610 Airfoil fan is a quiet, highly efficient, and stable operating fan suited for a broad range of industrial and commercial applications. Design Features 2 General Information 3 Commercial air conditioning systems, general supply and exhaust ventilation: Public Buildings Hospitals Warehouses Offices Department Stores Schools Industrial supply and exhaust: Forced Draft Combustion Air Supply Locomotive Traction Motor Cooling Spray Booth Supply and Exhaust Pulp and Paper Machines Grain Drying Drying Kilns Accessories 4 Selection 6 Performance Data 8 Dimensions 24 Sound Data 27 Fan Geometry 27 Centrifugal Fan Arrangements 28 CML Northern Blower Inc. certifies that the Series 7600, Design 7610 Airfoil Fan shown herein is licensed to bear the AMCA seal. The ratings shown are based on tests and procedures performed in accordance with AMCA publication 211 and AMCA publication 311 and comply with the requirements of the AMCA Certified Ratings program. 1

Design Features Housing & Framing Rugged heavy gauge all welded steel housings with substantial framing sections for maximum rigidity. Airfoil Wheel Superior combination of high efficiency, stable operation and low noise level. Bearings Heavy duty precision ball or roller bearings sized for generous B-10 life. Shafts Turned ground and polished or fully machined to close dimensional tolerance. Balancing Wheels are dynamically balanced to ANSI S2.19-1989 specifications for smooth operation. 2

General Information Shafts and Bearings Shafts Selected to have suitable strength and operate well below the first critical speed for each maximum class condition. Bearings Antifriction, grease lubricated, self aligning ball or roller types, solid or split housing, manufactured to internationally adopted standards by companies having worldwide acceptance and support services. Bearings are selected for continuous belt driven operation with a generous bearing life throughout each full class range. Classes of Construction Fan Range Arrangement Class I & II Class III 1 - SW 1225-5425 2225-5425 9 - SW 1225-5425 2225-5425 Capacities 350 CFM to 85,000 CFM Pressures Class I to 9" S.P. ( 1225-3000) Class I to 8" S.P. ( 3300-5425) Class II to 12" S.P. ( 1225-5425) Class III to 21" S.P. ( 2225-5425) Temperatures Operating Temperatures to 800 F See Table 2, Page 6 Design 7610 Centrifugal Airfoil Wheel The Northern Blower Airfoil wheel is designed for high operating efficiency. Blades are die formed hollow airfoil sections reinforced as required for class of duty. Continuously welded steel construction is standard. Available from 12 1/4" to 54 1/4" diameters. 3

Accessories Variable Inlet Vanes Variable Inlet Vanes provide accurate volume control with minimal reduction in performance efficiency. Fan performance remains stable through fully open to fully closed positions. Available for both manual and automatic operation to temperatures of 300 F. Special design available for temperatures to 650 F. Outlet Damper Outlet Dampers are the least expensive air volume control device but are less efficient than Variable Inlet Vanes or Inlet Box with Inlet Damper. Northern Blower Outlet Dampers have punched flanges on both ends to allow for convenient fan and duct connections. Both parallel blade and opposed blade designs are available for operating temperatures to 650 F. Shaft and Bearing Guard Encloses the shaft and bearings from the fan drive side to just beyond the outboard fan bearing. Guard includes accessible grease fittings for both bearings. Raised Access Door Access door raised 6" beyond scroll surface to provide room for insulation on exterior of fan housing. Insulated door plug surface is flush with inside of housing scroll. Flush Access Door Access door mounted flush to the fan scroll and secured with bolted clips. Quick release handle system also available. Inlet Screen Steel screen mounted to the inlet cone. 4

Accessories Cooling Wheel Split aluminum wheel mounted between the inboard bearing and the fan housing. Protects the inboard bearing from shaft conveyed heat and housing radiated heat. Supplied with protective guard as standard. Required for high temperature application; see Table 2 on Page 6. Shaft Seal Used to reduce leakage through the shaft hole in the housing. Seal material aluminum, brass, or compressed nonasbestos gasket sheet, depending on fan application. Belt Guard Enclosed on all sides for safe operation and vented to prevent overheating. Tachometer holes, hinged cover, and safety colour coatings also available. Flanged Outlet/ Flanged Inlet Punched flanges to facilitate the bolting of duct connections to the fan inlet and outlet. Flanged Outlet needed when the fan is to be fitted with an Outlet Damper. Vibration Isolation Base Rigid steel frame to provide a common mounting platform for fan and motor. May be ordered with spring or rubberin-shear isolators and motor slide base. Additional Accessories Spark Resistant Construction Protective Coatings Special Metals Drain Openings High Temperature Construction Extended Grease Fittings Insulation Clips Mounted Drive Package Due to the wide variety of fans available from Northern Blower we are unable to publish all information in one bulletin. Further information on custom fans is available from your Northern Blower sales representative. 5

Selection Fan Selection at Elevated Temperature and Altitude Fan Selection Tables Ratings shown in the Performance Tables are based on standard air density of.075 pounds per cubic foot at the fan inlet. Standard air is dry air at 70 F and 29.92" Hg barometric pressure. When air density varies from standard, due to temperature or altitude changes, the Air Density Correction Factor from Table 3 is applied. Refer to the sample selection that follows. Note that data in the selection tables does not include the effects of accessories such as inlet dampers, outlet dampers, screens, or other components in the air stream. High Temperature Fans selected for high temperature service must fall within the limits for a particular arrangement as shown in Table 2. For selection, both fan performance and physical operating limits must be corrected. Refer to the sample selection on the following page. Table 1 Wheel & Shaft Maximum Speeds at 70 F ( SISW only ) Class I Class II Class III Shaft Wheel Shaft Wheel Shaft Wheel 1225 4029 4029 4846 4846 1350 3644 4926 4446 4926 1500 3267 4433 3986 4433 1650 2969 4031 3623 4031 1825 2657 3439 3244 3439 2000 2430 3138 2956 3138 2225 2180 2820 2669 2820 3357 3775 2450 1988 2562 2428 2562 3054 3310 2700 1804 2239 2203 2239 2771 2861 3000 1623 2143 1982 2143 2493 2637 3300 1447 1857 1769 1857 2225 2366 3650 1307 1782 1598 1782 2010 2142 4025 1134 1230 1450 1575 1824 1943 4450 1019 1058 1305 1352 1641 1747 4900 925 1024 1184 1308 1490 1548 5425 836 879 1071 1123 1347 1441 Table 2 * Class III fan with cooling wheel and shaft seal to 800 F. (Applies to pedestal base fans only) Table 3 Table 4 Arrangement High Temperature Operating Limits Without Cooling Wheel With Cooling Wheel 1 SW 300 F 650 F * 9 SW 300 F 650 F Air Density Correction Factor Air Temp Elevation (Feet) above Sea Level F 0 500 1000 2000 3000 4000 5000-40.79.81.82.85.88.92.95 0.87.88.90.93.97 1.00 1.04 40.94.96.98 1.01 1.05 1.09 1.13 70 1.00 1.02 1.04 1.08 1.12 1.16 1.20 100 1.06 1.08 1.10 1.14 1.18 1.22 1.27 140 1.13 1.15 1.17 1.22 1.26 1.31 1.36 180 1.21 1.23 1.25 1.30 1.35 1.40 1.45 200 1.25 1.27 1.29 1.34 1.39 1.44 1.50 250 1.34 1.36 1.39 1.44 1.49 1.55 1.61 300 1.43 1.46 1.49 1.54 1.60 1.66 1.72 350 1.53 1.56 1.58 1.64 1.71 1.77 1.84 400 1.62 1.65 1.68 1.75 1.81 1.88 1.95 450 1.72 1.75 1.78 1.85 1.92 1.99 2.06 500 1.81 1.84 1.88 1.95 2.02 2.10 2.18 600 2.00 2.04 2.07 2.15 2.23 2.32 2.40 700 2.19 2.23 2.27 2.35 2.44 2.53 2.63 800 2.38 2.42 2.46 2.56 2.65 2.75 2.86 Safe Speed Deration Factors Temp F Steel Wheel Steel Shaft -50 to 150 1.0 1.0 200.93 1.0 300.89 1.0 400.86.99 500.82.97 600.79.96 700.76.95 800.68.94 6

Selection Sample Selection of a Belt Drive Fan Select a fan for the operating conditions of 6000 CFM at 2-1/2" SP, 500 F and 1000 feet elevation. Operating BHP = Equivalent BHP Air Density Correction Factor 1) Multiply the Operating SP by the Air Density Correction Factor (Table 3) to obtain Equivalent SP: = 5.47 = 2.91 BHP 1.88 Equivalent SP = Operating SP x Air Density Corr. Factor = 2-1/2" x 1.88 = 4.7" 2) From the Performance Tables, select the fan size. For 6000 CFM at 4.7" SP an efficient selection would be a size 2450 fan. Interpolating from the Performance Table given on page 14, the selected fan performance is 1526 RPM and 4.62 BHP at standard temperature and pressure. 3) Divide the Equivalent BHP by the Air Density Correction Factor to obtain the Operating BHP: 4) Multiply the Wheel & Shaft Maximum Speed 70 F values at (Table 1) by the Wheel & Shaft Safe Speed Devation Factors (Table 4). Fan size 2450, Class I, the maximum speed at 500 F is: Wheel = 2562 x 0.82 = 2101 RPM Shaft = 1988 x 0.97 = 1928 RPM Since the fan selection speed of 1526 RPM is below both the maximum allowable wheel and shaft speeds, the Class I fan is a suitable selection. Design 7610 Performance Curve 120 TP Percent Pressure, Brake Horsepower, and Efficiency 100 80 60 40 20 SP BHP ME SE 0 High Efficiency Stable Operation Quiet 20 40 60 80 100 Percent free delivery volume - CFM 6

1225 SISW Wheel Diameter = 12.25 in. Outlet Area = 0.86 sq. ft. inside Maximum BHP =.053 x (RPM/1000) 3 Tip Speed, fpm = 3.21 x RPM Class I RPM 4029 Class II RPM 4846 Volume O.Vel 1/4"SP 1/2"SP 3/4"SP 1"SP 1-1/4"SP 1-1/2"SP 1-3/4"SP 2"SP 2-1/4"SP 2-1/2"SP 350 406 716 0.02 963 0.04 1159 0.07 400 464 751 0.02 973 0.04 1173 0.07 1337 0.10 450 522 793 0.03 990 0.05 1183 0.08 1352 0.11 1495 0.14 500 580 834 0.03 1015 0.05 1195 0.08 1362 0.12 1511 0.15 1639 0.19 600 696 913 0.04 1090 0.07 1236 0.10 1387 0.13 1531 0.17 1665 0.21 1789 0.25 1902 0.30 2005 0.34 700 812 1004 0.05 1174 0.08 1306 0.12 1431 0.15 1561 0.19 1688 0.23 1809 0.28 1925 0.32 2032 0.37 2133 0.42 800 928 1105 0.07 1252 0.10 1390 0.14 1501 0.17 1610 0.21 1724 0.26 1836 0.30 1946 0.35 2052 0.41 2154 0.46 900 1044 1210 0.09 1336 0.12 1472 0.17 1585 0.21 1682 0.25 1779 0.29 1878 0.34 1979 0.39 2079 0.44 2177 0.50 1000 1160 1317 0.11 1430 0.15 1549 0.20 1668 0.24 1767 0.29 1854 0.33 1940 0.38 2029 0.43 2119 0.48 2210 0.54 1100 1276 1428 0.14 1530 0.18 1633 0.23 1746 0.28 1850 0.33 1939 0.38 2019 0.43 2097 0.48 2176 0.53 2257 0.59 1200 1392 1540 0.17 1633 0.21 1727 0.27 1825 0.32 1928 0.38 2022 0.43 2104 0.48 2178 0.54 2250 0.59 2321 0.65 1300 1508 1654 0.21 1739 0.26 1826 0.31 1913 0.37 2006 0.43 2101 0.49 2187 0.54 2263 0.60 2333 0.66 2400 0.72 1400 1624 1768 0.25 1847 0.30 1928 0.36 2008 0.42 2090 0.48 2178 0.54 2266 0.61 2347 0.67 2419 0.74 2485 0.80 1500 1740 1884 0.30 1957 0.35 2032 0.41 2107 0.47 2182 0.54 2260 0.61 2343 0.68 2424 0.75 2500 0.82 2569 0.88 1600 1856 2000 0.36 2069 0.41 2138 0.47 2208 0.54 2278 0.61 2349 0.68 2424 0.75 2501 0.82 2578 0.90 2649 0.97 1700 1972 2117 0.42 2181 0.48 2246 0.54 2312 0.61 2378 0.68 2444 0.75 2511 0.83 2582 0.91 2655 0.99 2727 1.06 1800 2088 2234 0.49 2294 0.55 2356 0.62 2418 0.69 2480 0.76 2542 0.84 2605 0.92 2669 1.00 2735 1.08 2804 1.16 1900 2204 2352 0.57 2409 0.63 2466 0.70 2525 0.78 2584 0.85 2643 0.93 2702 1.01 2761 1.09 2822 1.18 2885 1.27 2000 2320 2470 0.66 2524 0.73 2578 0.80 2634 0.87 2690 0.95 2746 1.03 2802 1.11 2857 1.20 2914 1.29 2971 1.38 2200 2552 2707 0.86 2756 0.93 2805 1.01 2854 1.09 2905 1.17 2955 1.26 3006 1.35 3057 1.44 3108 1.53 3159 1.63 2400 2784 2944 1.10 2989 1.18 3034 1.26 3079 1.35 3124 1.44 3171 1.53 3217 1.62 3263 1.72 3310 1.81 3356 1.92 2600 3016 3182 1.39 3224 1.47 3265 1.56 3306 1.65 3348 1.74 3390 1.84 3432 1.94 3475 2.04 3518 2.14 3561 2.25 2800 3248 3420 1.72 3460 1.81 3497 1.90 3536 2.00 3574 2.10 3613 2.20 3652 2.30 3691 2.40 3731 2.51 3770 2.62 3000 3480 3659 2.10 3696 2.20 3731 2.30 3767 2.40 3802 2.50 3838 2.60 3874 2.71 3911 2.82 3947 2.94 3984 3.05 3200 3712 3898 2.54 3933 2.64 3967 2.75 4000 2.85 4033 2.96 4066 3.07 4100 3.18 4133 3.29 4167 3.41 4202 3.53 3400 3945 4138 3.03 4170 3.14 4202 3.25 4233 3.36 4265 3.47 4296 3.59 4327 3.70 4359 3.83 4390 3.95 4422 4.07 3600 4177 4378 3.58 4408 3.70 4439 3.82 4468 3.93 4497 4.05 4527 4.17 4556 4.29 4585 4.42 4615 4.54 4645 4.67 Volume O.Vel 3"SP 3-1/2"SP 4"SP 4-1/2"SP 5"SP 5-1/2"SP 6"SP 6-1/2"SP 7"SP 7-1/2"SP 900 1044 2365 0.61 2539 0.74 2701 0.87 2850 1.00 2986 1.12 3114 1.26 1000 1160 2387 0.66 2558 0.79 2722 0.92 2875 1.06 3017 1.21 3150 1.35 3273 1.49 3393 1.64 1100 1276 2422 0.71 2584 0.84 2742 0.98 2893 1.13 3038 1.28 3175 1.43 3306 1.59 3425 1.74 3541 1.90 3654 2.06 1200 1392 2469 0.77 2620 0.90 2770 1.04 2915 1.19 3057 1.35 3193 1.51 3325 1.67 3452 1.84 3570 2.01 3682 2.18 1300 1508 2532 0.84 2668 0.97 2808 1.11 2946 1.27 3082 1.42 3215 1.59 3344 1.76 3469 1.93 3591 2.11 3709 2.29 1400 1624 2608 0.92 2731 1.05 2858 1.19 2987 1.35 3117 1.51 3244 1.68 3369 1.85 3491 2.03 3610 2.21 3726 2.40 1500 1740 2692 1.01 2807 1.15 2921 1.29 3039 1.44 3159 1.60 3279 1.77 3399 1.94 3517 2.13 3633 2.31 3748 2.51 1600 1856 2777 1.11 2889 1.25 2997 1.39 3104 1.54 3214 1.70 3326 1.87 3440 2.05 3552 2.24 3663 2.43 3772 2.62 1700 1972 2860 1.22 2974 1.37 3079 1.52 3180 1.67 3281 1.83 3383 1.99 3488 2.17 3594 2.35 3700 2.55 3806 2.75 1800 2088 2939 1.33 3058 1.49 3164 1.65 3262 1.80 3357 1.96 3452 2.13 3548 2.30 3647 2.49 3747 2.68 3848 2.88 1900 2204 3016 1.44 3138 1.62 3249 1.79 3348 1.95 3440 2.12 3530 2.28 3619 2.46 3710 2.64 3803 2.83 3897 3.03 2000 2320 3094 1.56 3216 1.74 3330 1.93 3433 2.11 3526 2.28 3613 2.45 3698 2.63 3783 2.81 3869 3.00 3956 3.19 2200 2552 3262 1.82 3372 2.03 3485 2.23 3593 2.43 3692 2.63 3784 2.83 3867 3.01 3947 3.20 4025 3.39 4102 3.59 2400 2785 3449 2.12 3544 2.34 3643 2.55 3746 2.77 3848 2.99 3944 3.21 4034 3.43 4118 3.65 4194 3.85 4269 4.06 2600 3017 3647 2.46 3732 2.69 3819 2.92 3909 3.16 4003 3.39 4098 3.63 4191 3.86 4278 4.10 4361 4.34 4438 4.57 2800 3249 3850 2.85 3929 3.09 4008 3.33 4088 3.57 4170 3.82 4256 4.08 4344 4.33 4433 4.59 4517 4.84 4598 5.10 3000 3481 4058 3.29 4132 3.53 4206 3.78 4279 4.04 4353 4.30 4429 4.57 4507 4.85 4588 5.11 4670 5.39 4753 5.66 3200 3713 4270 3.78 4339 4.03 4408 4.29 4478 4.56 4546 4.83 4615 5.11 4685 5.40 4757 5.68 4831 5.97 3400 3945 4486 4.33 4551 4.59 4615 4.86 4680 5.14 4745 5.42 4809 5.71 3600 4177 4705 4.94 4765 5.21 4826 5.49 Volume O.Vel 8"SP 8-1/2"SP 9"SP 9-1/2"SP 10"SP 10-1/2"SP 11"SP 11-1/2"SP 12"SP 13"SP 1500 1740 3858 2.70 3967 2.90 4075 3.11 4176 3.31 4279 3.53 4372 3.73 4469 3.95 4557 4.15 4645 4.36 4814 4.79 1600 1856 3881 2.82 3989 3.03 4092 3.23 4196 3.45 4295 3.66 4394 3.88 4488 4.10 4583 4.33 4671 4.55 4844 5.00 1700 1972 3911 2.95 4013 3.16 4116 3.37 4217 3.59 4314 3.80 4413 4.03 4507 4.25 4602 4.49 4692 4.72 1800 2088 3947 3.08 4046 3.29 4146 3.51 4242 3.73 4339 3.96 4433 4.18 4528 4.41 4619 4.65 4711 4.89 1900 2204 3991 3.23 4087 3.45 4181 3.66 4274 3.89 4369 4.12 4460 4.34 4553 4.59 4641 4.82 4733 5.07 2000 2320 4044 3.40 4135 3.61 4224 3.83 4314 4.05 4404 4.28 4493 4.52 4582 4.76 4669 5.00 4757 5.25 2100 2436 4107 3.58 4191 3.79 4275 4.01 4361 4.23 4447 4.46 4532 4.70 4618 4.94 4702 5.19 4787 5.44 2200 2552 4179 3.79 4258 4.00 4336 4.21 4416 4.43 4497 4.66 4579 4.90 4660 5.14 4742 5.39 4823 5.64 2300 2668 4258 4.02 4332 4.22 4405 4.44 4480 4.66 4556 4.88 4632 5.12 4710 5.36 4788 5.60 2400 2784 4341 4.26 4411 4.47 4482 4.69 4552 4.90 4624 5.13 4695 5.36 4768 5.60 4841 5.84 2500 2900 4426 4.52 4495 4.74 4563 4.95 4630 5.17 4698 5.40 4766 5.62 4835 5.86 2600 3016 4510 4.79 4581 5.02 4647 5.24 4714 5.46 4778 5.69 4843 5.92 2700 3132 4594 5.07 4665 5.30 4732 5.54 4798 5.77 2800 3248 4676 5.35 4747 5.60 4817 5.85 2900 3364 4754 5.63 4830 5.90 3000 3480 4831 5.93 The BHP shown does not include belt drive losses. Belt drive is not recommended above 3600 RPM. The performance shown is for fan with outlet duct. 8

Wheel Diameter = 13.50 in. Outlet Area = 1.05 sq. ft. inside Maximum BHP =.088 x (RPM/1000) 3 Tip Speed, fpm = 3.53 x RPM Class I RPM 3644 Class II RPM 4446 1350 SISW Volume O.Vel 1/4"SP 1/2"SP 3/4"SP 1"SP 1-1/4"SP 1-1/2"SP 1-3/4"SP 2"SP 2-1/4"SP 2-1/2"SP 500 477 677 0.03 857 0.05 600 572 737 0.03 902 0.06 1045 0.09 700 668 805 0.04 953 0.07 1088 0.11 1209 0.15 1324 0.18 800 763 878 0.06 1011 0.09 1137 0.13 1252 0.16 1358 0.21 1460 0.25 900 858 953 0.07 1076 0.11 1191 0.15 1301 0.19 1402 0.23 1497 0.28 1589 0.33 1000 954 1031 0.09 1146 0.13 1251 0.17 1353 0.21 1451 0.26 1543 0.31 1629 0.36 1712 0.41 1795 0.47 1874 0.52 1100 1049 1111 0.11 1218 0.15 1316 0.20 1410 0.24 1502 0.29 1592 0.34 1675 0.40 1755 0.45 1832 0.51 1907 0.57 1200 1145 1192 0.13 1292 0.18 1385 0.23 1473 0.28 1559 0.33 1643 0.38 1725 0.44 1803 0.50 1877 0.55 1948 0.62 1300 1240 1274 0.16 1369 0.21 1457 0.26 1540 0.32 1620 0.37 1699 0.42 1776 0.48 1852 0.54 1925 0.60 1995 0.67 1400 1335 1357 0.19 1447 0.25 1531 0.30 1610 0.36 1685 0.41 1759 0.47 1832 0.53 1904 0.60 1975 0.66 2043 0.73 1500 1431 1440 0.23 1526 0.29 1606 0.35 1681 0.41 1753 0.47 1824 0.53 1892 0.59 1960 0.65 2028 0.72 2094 0.79 1600 1526 1525 0.27 1606 0.33 1682 0.39 1755 0.46 1824 0.52 1891 0.59 1956 0.65 2020 0.72 2084 0.78 2147 0.86 1700 1622 1610 0.31 1687 0.38 1760 0.45 1829 0.51 1896 0.58 1960 0.65 2023 0.72 2084 0.79 2144 0.86 2204 0.93 1800 1717 1695 0.37 1769 0.43 1839 0.50 1906 0.58 1970 0.65 2031 0.72 2091 0.79 2150 0.86 2208 0.93 2265 1.01 1900 1812 1781 0.42 1852 0.49 1919 0.57 1983 0.64 2044 0.72 2104 0.79 2162 0.87 2219 0.94 2274 1.02 2329 1.10 2000 1908 1868 0.48 1935 0.56 2000 0.64 2061 0.71 2121 0.79 2178 0.87 2234 0.95 2289 1.03 2342 1.11 2395 1.19 2200 2099 2041 0.63 2103 0.71 2163 0.79 2220 0.88 2276 0.97 2330 1.05 2382 1.14 2433 1.23 2483 1.31 2533 1.40 2400 2289 2215 0.80 2273 0.89 2329 0.98 2382 1.07 2434 1.16 2485 1.26 2534 1.35 2582 1.45 2630 1.54 2676 1.64 2600 2480 2390 1.00 2444 1.09 2496 1.19 2546 1.29 2596 1.39 2643 1.49 2689 1.59 2735 1.70 2780 1.80 2824 1.90 2800 2671 2566 1.23 2617 1.33 2665 1.44 2712 1.54 2758 1.65 2804 1.76 2848 1.87 2891 1.98 2933 2.09 2975 2.20 3000 2862 2742 1.50 2789 1.61 2835 1.72 2880 1.83 2924 1.95 2966 2.06 3008 2.18 3049 2.29 3089 2.41 3129 2.53 3200 3052 2918 1.80 2963 1.92 3007 2.03 3049 2.15 3090 2.27 3131 2.40 3170 2.52 3209 2.64 3248 2.77 3286 2.89 3400 3243 3095 2.15 3137 2.27 3179 2.39 3219 2.52 3258 2.64 3297 2.77 3334 2.90 3372 3.04 3408 3.17 3445 3.30 3600 3434 3272 2.53 3312 2.66 3352 2.79 3390 2.92 3428 3.06 3464 3.19 3500 3.33 3536 3.47 3571 3.61 3605 3.75 3800 3625 3449 2.96 3488 3.10 3525 3.24 3562 3.37 3597 3.51 3633 3.66 3667 3.80 3701 3.95 3734 4.09 3768 4.24 4000 3816 3627 3.44 3664 3.59 3699 3.73 3735 3.87 3768 4.02 3802 4.17 3835 4.32 3867 4.47 3900 4.62 3931 4.77 4200 4006 3804 3.97 3840 4.12 3874 4.27 3908 4.42 3940 4.57 3972 4.73 4004 4.88 4035 5.04 4066 5.20 4097 5.36 4400 4197 3982 4.55 4016 4.71 4049 4.86 4081 5.02 4113 5.18 4143 5.34 4174 5.50 4204 5.67 4233 5.83 4263 6.00 Volume O.Vel 3"SP 3-1/2"SP 4"SP 4-1/2"SP 5"SP 5-1/2"SP 6"SP 6-1/2"SP 7"SP 7-1/2"SP 1100 1049 2055 0.69 1200 1145 2087 0.74 2222 0.88 1300 1240 2127 0.80 2255 0.94 2380 1.08 1400 1335 2173 0.86 2295 1.01 2414 1.16 2530 1.31 2643 1.47 1500 1431 2221 0.93 2340 1.08 2454 1.23 2565 1.39 2675 1.56 2782 1.73 1600 1526 2271 1.00 2389 1.16 2500 1.31 2606 1.48 2710 1.65 2813 1.82 2914 2.00 3012 2.18 1700 1622 2323 1.08 2438 1.24 2548 1.40 2652 1.57 2752 1.74 2851 1.92 2948 2.11 3044 2.29 3138 2.48 3329 2.67 1800 1717 2378 1.17 2489 1.33 2597 1.50 2700 1.67 2799 1.85 2894 2.03 2988 2.22 3079 2.41 3169 2.60 3259 2.80 1900 1812 2437 1.26 2543 1.42 2648 1.60 2749 1.77 2847 1.96 2941 2.14 3032 2.34 3120 2.53 3206 2.73 3293 2.94 2000 1908 2498 1.36 2600 1.53 2701 1.70 2800 1.89 2896 2.07 2989 2.26 3079 2.46 3164 2.66 3248 2.87 3332 3.08 2200 2099 2629 1.58 2723 1.76 2816 1.94 2907 2.13 2998 2.33 3087 2.53 3175 2.74 3260 2.94 3341 3.16 3421 3.38 2400 2289 2767 1.83 2854 2.02 2940 2.21 3025 2.41 3110 2.61 3194 2.82 3277 3.04 3359 3.26 3439 3.48 3517 3.71 2600 2480 2910 2.11 2993 2.31 3074 2.52 3154 2.73 3233 2.94 3311 3.16 3388 3.38 3465 3.61 3542 3.84 3618 4.08 2800 2671 3057 2.42 3136 2.64 3213 2.86 3289 3.08 3362 3.31 3435 3.53 3508 3.76 3581 4.00 3653 4.24 3724 4.48 3000 2862 3207 2.76 3282 3.00 3356 3.24 3428 3.47 3498 3.71 3568 3.95 3637 4.19 3705 4.43 3772 4.68 3839 4.93 3200 3052 3359 3.14 3432 3.40 3502 3.65 3571 3.90 3638 4.15 3705 4.40 3771 4.66 3835 4.91 3899 5.17 3963 5.43 3400 3243 3515 3.56 3584 3.83 3651 4.10 3718 4.37 3782 4.63 3846 4.90 3909 5.17 3971 5.43 4032 5.70 4093 5.98 3600 3434 3673 4.03 3739 4.31 3804 4.59 3867 4.87 3930 5.16 3990 5.43 4051 5.72 4111 6.00 4169 6.28 4228 6.57 3800 3625 3832 4.53 3896 4.82 3959 5.12 4019 5.42 4079 5.71 4138 6.02 4195 6.31 4253 6.61 4309 6.90 4365 7.20 4000 3816 3994 5.08 4055 5.39 4114 5.70 4173 6.01 4231 6.32 4287 6.64 4344 6.95 4398 7.26 4200 4006 4156 5.68 4215 6.00 4273 6.33 4329 6.65 4385 6.98 4439 7.31 4400 4197 4320 6.33 4378 6.68 4432 7.01 Volume O.Vel 8"SP 8-1/2"SP 9"SP 9-1/2"SP 10"SP 10-1/2"SP 11"SP 11-1/2"SP 12"SP 13"SP 1800 1717 3349 3.01 3436 3.21 1900 1812 3380 3.15 3463 3.36 3548 3.57 3630 3.79 2000 1908 3415 3.29 3496 3.51 3578 3.73 3657 3.95 3737 4.18 3815 4.40 2200 2099 3500 3.60 3575 3.82 3651 4.06 3726 4.29 3800 4.53 3874 4.77 3947 5.01 4020 5.25 4093 5.50 2400 2289 3593 3.94 3668 4.18 3739 4.41 3812 4.66 3881 4.90 3951 5.16 4019 5.40 4088 5.66 4155 5.92 4290 6.45 2600 2480 3691 4.32 3764 4.56 3836 4.81 3905 5.06 3974 5.32 4040 5.57 4106 5.83 4170 6.10 4234 6.37 4361 6.91 2800 2671 3795 4.74 3865 4.99 3934 5.24 4003 5.50 4069 5.76 4136 6.03 4200 6.30 4263 6.57 4325 6.85 3000 2862 3906 5.19 3973 5.45 4040 5.72 4104 5.99 4171 6.26 4233 6.53 4298 6.82 4359 7.09 4421 7.38 3200 3052 4025 5.69 4089 5.96 4151 6.24 4214 6.51 4276 6.79 4337 7.08 4398 7.37 3400 3243 4152 6.24 4212 6.53 4270 6.80 4330 7.09 4388 7.38 3600 3434 4284 6.85 4341 7.14 4397 7.42 3800 3625 4420 7.50 The BHP shown does not include belt drive losses. Belt drive is not recommended above 3600 RPM. The performance shown is for fan with outlet duct. 9

1500 SISW Wheel Diameter = 15.00 in. Outlet Area = 1.29 sq. ft. inside Maximum BHP =.148 x (RPM/1000) 3 Tip Speed, fpm = 3.93 x RPM Class I RPM 3267 Class II RPM 3986 Volume O.Vel 1/4"SP 1/2"SP 3/4"SP 1"SP 1-1/4"SP 1-1/2"SP 1-3/4"SP 2"SP 2-1/4"SP 2-1/2"SP 600 464 602 0.03 766 0.06 700 541 644 0.04 797 0.07 930 0.11 800 618 692 0.05 833 0.08 957 0.12 1072 0.17 900 695 743 0.06 872 0.10 991 0.14 1098 0.19 1199 0.23 1000 773 797 0.07 916 0.11 1028 0.16 1131 0.21 1226 0.26 1317 0.31 1100 850 852 0.09 963 0.13 1067 0.18 1167 0.23 1258 0.28 1344 0.34 1427 0.40 1508 0.46 1200 927 908 0.10 1013 0.15 1110 0.20 1204 0.25 1293 0.31 1376 0.37 1455 0.43 1531 0.50 1607 0.56 1680 0.63 1400 1082 1024 0.15 1119 0.20 1206 0.26 1288 0.31 1369 0.37 1447 0.44 1523 0.51 1594 0.58 1662 0.65 1728 0.72 1600 1236 1143 0.20 1229 0.26 1309 0.32 1384 0.39 1456 0.45 1527 0.52 1597 0.59 1665 0.67 1731 0.74 1794 0.82 1800 1391 1265 0.26 1343 0.33 1416 0.40 1486 0.48 1552 0.55 1616 0.62 1680 0.70 1742 0.78 1804 0.86 1865 0.94 2000 1545 1388 0.34 1460 0.42 1528 0.50 1593 0.58 1654 0.66 1714 0.74 1772 0.82 1829 0.90 1886 0.99 1942 1.07 2200 1700 1512 0.44 1579 0.52 1642 0.61 1703 0.70 1761 0.78 1816 0.87 1871 0.96 1924 1.05 1977 1.14 2028 1.23 2400 1854 1637 0.55 1700 0.64 1759 0.74 1816 0.83 1870 0.93 1923 1.02 1974 1.12 2024 1.21 2074 1.31 2122 1.41 2600 2009 1763 0.69 1822 0.78 1877 0.88 1931 0.99 1982 1.09 2032 1.19 2081 1.29 2128 1.40 2175 1.50 2220 1.60 2800 2163 1890 0.84 1945 0.95 1997 1.05 2048 1.16 2096 1.27 2144 1.38 2190 1.49 2235 1.60 2279 1.71 2323 1.82 3000 2318 2017 1.02 2069 1.13 2118 1.24 2166 1.36 2212 1.48 2257 1.59 2301 1.71 2345 1.83 2387 1.95 2428 2.07 3200 2472 2145 1.22 2193 1.34 2240 1.46 2286 1.58 2330 1.71 2373 1.83 2415 1.96 2456 2.08 2496 2.21 2536 2.33 3400 2627 2273 1.45 2319 1.57 2364 1.70 2407 1.83 2449 1.96 2490 2.09 2530 2.23 2569 2.36 2608 2.49 2646 2.63 3600 2782 2401 1.71 2445 1.84 2487 1.97 2528 2.10 2569 2.24 2608 2.38 2646 2.52 2684 2.66 2721 2.80 2757 2.94 3800 2936 2529 1.99 2571 2.13 2612 2.27 2651 2.41 2690 2.55 2727 2.70 2764 2.85 2800 2.99 2836 3.14 2871 3.29 4000 3091 2658 2.31 2698 2.45 2737 2.60 2775 2.74 2811 2.89 2848 3.05 2883 3.20 2918 3.36 2952 3.51 2986 3.67 4200 3245 2787 2.66 2825 2.80 2863 2.96 2898 3.11 2934 3.27 2969 3.43 3003 3.59 3036 3.75 3069 3.91 3102 4.08 4400 3400 2916 3.04 2953 3.19 2989 3.35 3023 3.51 3057 3.68 3090 3.84 3124 4.01 3155 4.18 3188 4.35 3218 4.52 4600 3554 3045 3.46 3081 3.62 3115 3.78 3148 3.95 3181 4.12 3213 4.29 3244 4.47 3276 4.65 3306 4.82 3337 5.00 4800 3709 3174 3.91 3209 4.08 3242 4.25 3274 4.43 3305 4.60 3337 4.79 3367 4.96 3397 5.15 3426 5.33 3455 5.51 5000 3863 3304 4.41 3337 4.59 3369 4.76 3400 4.94 3430 5.12 3460 5.31 3490 5.50 3518 5.69 3547 5.88 3575 6.07 5200 4018 3434 4.94 3465 5.13 3496 5.31 3526 5.50 3556 5.69 3584 5.88 3613 6.07 3641 6.27 3668 6.46 3696 6.67 5400 4172 3563 5.52 3594 5.71 3624 5.90 3653 6.10 3682 6.29 3709 6.49 3736 6.69 3764 6.89 3790 7.09 3817 7.30 Volume O.Vel 3"SP 3-1/2"SP 4"SP 4-1/2"SP 5"SP 5-1/2"SP 6"SP 6-1/2"SP 7"SP 7-1/2"SP 1400 1082 1858 0.88 1600 1236 1913 0.99 2028 1.16 2141 1.34 1800 1391 1981 1.11 2089 1.29 2193 1.48 2294 1.68 2394 1.87 2492 2.08 2000 1545 2053 1.26 2159 1.45 2259 1.64 2354 1.85 2447 2.06 2538 2.27 2629 2.49 2717 2.72 2200 1700 2131 1.42 2232 1.62 2329 1.82 2422 2.04 2511 2.25 2597 2.48 2682 2.71 2765 2.95 2848 3.19 2928 3.43 2400 1854 2217 1.60 2311 1.81 2403 2.03 2494 2.25 2581 2.48 2665 2.71 2746 2.95 2825 3.19 2903 3.45 2979 3.70 2600 2009 2310 1.81 2397 2.03 2484 2.25 2570 2.48 2654 2.72 2737 2.96 2816 3.21 2893 3.47 2967 3.72 3040 3.99 2800 2163 2408 2.05 2490 2.27 2571 2.50 2652 2.74 2731 2.99 2810 3.24 2887 3.50 2963 3.76 3038 4.03 3108 4.30 3000 2318 2509 2.31 2587 2.54 2664 2.78 2740 3.03 2815 3.29 2890 3.55 2964 3.82 3037 4.09 3108 4.36 3178 4.64 3200 2472 2613 2.59 2688 2.84 2762 3.09 2834 3.35 2905 3.61 2975 3.88 3045 4.16 3115 4.44 3184 4.72 3252 5.02 3400 2627 2720 2.89 2792 3.16 2862 3.43 2931 3.70 2999 3.98 3066 4.25 3132 4.53 3198 4.82 3264 5.12 3329 5.42 3600 2782 2828 3.23 2898 3.51 2965 3.79 3032 4.08 3097 4.37 3161 4.65 3224 4.94 3286 5.24 3349 5.55 3411 5.85 3800 2936 2939 3.59 3006 3.89 3071 4.19 3135 4.49 3197 4.79 3259 5.09 3319 5.39 3379 5.69 3439 6.01 3498 6.32 4000 3091 3052 3.98 3116 4.30 3179 4.61 3240 4.93 3300 5.24 3360 5.55 3418 5.87 3476 6.19 3533 6.51 3589 6.83 4200 3245 3165 4.40 3227 4.73 3288 5.06 3347 5.40 3406 5.72 3463 6.05 3519 6.39 3575 6.71 3630 7.05 3685 7.38 4400 3400 3280 4.86 3340 5.21 3399 5.55 3456 5.89 3512 6.24 3568 6.59 3622 6.93 3677 7.28 3729 7.62 3782 7.97 4600 3554 3396 5.36 3454 5.71 3511 6.07 3567 6.44 3621 6.79 3675 7.15 3728 7.51 3780 7.87 3832 8.24 3882 8.59 4800 3709 3513 5.88 3569 6.26 3624 6.63 3678 7.00 3731 7.38 3783 7.75 3834 8.13 3885 8.51 3935 8.88 3985 9.26 5000 3863 3631 6.46 3685 6.84 3738 7.22 3791 7.62 3842 8.00 3893 8.40 3943 8.79 5200 4018 3750 7.06 3802 7.46 3855 7.87 3905 8.26 3955 8.67 5400 4172 3869 7.71 3921 8.13 3970 8.54 Volume O.Vel 8"SP 8-1/2"SP 9"SP 9-1/2"SP 10"SP 10-1/2"SP 11"SP 11-1/2"SP 12"SP 13"SP 2200 1700 3009 3.68 2400 1854 3054 3.96 3130 4.23 3203 4.49 3277 4.76 3348 5.04 2600 2009 3112 4.26 3182 4.53 3253 4.82 3322 5.09 3392 5.38 3459 5.67 3528 5.96 3593 6.25 2800 2163 3177 4.58 3246 4.87 3312 5.15 3378 5.45 3443 5.74 3509 6.05 3572 6.34 3638 6.66 3700 6.96 3826 7.59 3000 2318 3248 4.94 3313 5.22 3379 5.52 3442 5.82 3505 6.13 3567 6.44 3628 6.75 3689 7.07 3750 7.39 3870 8.04 3200 2472 3318 5.31 3384 5.61 3449 5.92 3511 6.22 3573 6.54 3632 6.85 3692 7.18 3750 7.50 3808 7.84 3922 8.51 3400 2627 3393 5.72 3458 6.04 3520 6.34 3582 6.66 3642 6.98 3702 7.31 3760 7.64 3818 7.98 3873 8.31 3983 9.00 3600 2782 3473 6.16 3534 6.49 3595 6.81 3656 7.14 3714 7.46 3774 7.81 3830 8.14 3888 8.49 3942 8.83 3800 2936 3557 6.64 3616 6.97 3673 7.30 3732 7.64 3789 7.98 3847 8.33 3902 8.67 3958 9.03 4000 3091 3645 7.16 3702 7.50 3757 7.83 3813 8.18 3868 8.53 3923 8.89 3977 9.24 4200 3245 3738 7.72 3792 8.07 3845 8.41 3898 8.76 3951 9.11 4400 3400 3834 8.32 3885 8.67 3936 9.02 4600 3554 3933 8.96 3982 9.32 The BHP shown does not include belt drive losses. Belt drive is not recommended above 3600 RPM. The performance shown is for fan with outlet duct. 10

Wheel Diameter = 16.50 in. Outlet Area = 1.56 sq. ft. inside Maximum BHP =.239 x (RPM/1000) 3 Tip Speed, fpm = 4.32 x RPM Class I RPM 2969 Class II RPM 3623 1650 SISW Volume O.Vel 1/4"SP 1/2"SP 3/4"SP 1"SP 1-1/4"SP 1-1/2"SP 1-3/4"SP 2"SP 2-1/4"SP 2-1/2"SP 600 383 513 0.03 800 511 570 0.04 713 0.08 838 0.13 1000 639 641 0.06 767 0.11 879 0.15 980 0.21 1200 766 720 0.09 829 0.13 931 0.19 1026 0.25 1112 0.31 1195 0.38 1400 894 803 0.12 901 0.17 992 0.23 1080 0.29 1162 0.36 1238 0.43 1311 0.51 1383 0.58 1452 0.66 1600 1022 890 0.15 979 0.22 1061 0.28 1140 0.35 1217 0.42 1290 0.50 1360 0.58 1425 0.66 1489 0.74 1552 0.83 1800 1149 978 0.20 1060 0.27 1136 0.34 1208 0.42 1278 0.49 1346 0.57 1413 0.66 1477 0.74 1537 0.83 1596 0.92 2000 1277 1069 0.26 1145 0.34 1215 0.42 1282 0.50 1346 0.58 1409 0.66 1471 0.75 1532 0.84 1591 0.93 1647 1.03 2200 1405 1160 0.33 1231 0.41 1297 0.50 1359 0.59 1419 0.67 1477 0.76 1534 0.86 1591 0.95 1647 1.05 1701 1.15 2400 1533 1252 0.41 1319 0.50 1381 0.59 1440 0.69 1496 0.78 1551 0.88 1604 0.98 1656 1.08 1708 1.18 1760 1.28 2600 1660 1345 0.50 1408 0.60 1466 0.70 1522 0.80 1575 0.91 1627 1.01 1678 1.11 1727 1.22 1775 1.33 1824 1.44 2800 1788 1439 0.61 1498 0.71 1553 0.82 1606 0.93 1657 1.04 1706 1.16 1754 1.27 1801 1.38 1847 1.49 1892 1.60 3000 1916 1534 0.73 1589 0.84 1642 0.96 1692 1.08 1740 1.20 1787 1.31 1833 1.43 1877 1.55 1921 1.67 1964 1.79 3200 2043 1629 0.87 1681 0.99 1731 1.11 1779 1.24 1825 1.36 1870 1.49 1914 1.62 1956 1.74 1998 1.87 2039 2.00 3400 2171 1724 1.03 1774 1.16 1821 1.29 1867 1.42 1911 1.55 1954 1.68 1996 1.82 2037 1.95 2077 2.09 2116 2.22 3600 2299 1819 1.21 1867 1.34 1912 1.47 1956 1.61 1998 1.75 2039 1.89 2079 2.04 2119 2.18 2158 2.32 2195 2.46 3800 2426 1915 1.40 1960 1.54 2004 1.68 2045 1.83 2086 1.98 2126 2.13 2165 2.28 2202 2.42 2239 2.57 2276 2.73 4000 2554 2011 1.62 2054 1.77 2096 1.92 2136 2.07 2175 2.22 2213 2.38 2250 2.53 2287 2.69 2323 2.85 2358 3.01 4200 2682 2108 1.86 2149 2.01 2189 2.17 2227 2.33 2265 2.49 2302 2.65 2338 2.82 2373 2.98 2407 3.15 2441 3.31 4400 2810 2204 2.13 2244 2.28 2282 2.44 2319 2.61 2355 2.78 2391 2.95 2425 3.12 2459 3.29 2493 3.46 2525 3.64 4600 2937 2300 2.41 2339 2.58 2375 2.74 2411 2.92 2446 3.09 2480 3.27 2514 3.45 2547 3.63 2579 3.81 2611 3.99 4800 3065 2397 2.73 2434 2.90 2469 3.07 2504 3.25 2537 3.43 2571 3.62 2603 3.80 2635 3.99 2666 4.17 2697 4.36 5000 3193 2494 3.07 2529 3.24 2564 3.43 2597 3.61 2629 3.80 2661 3.99 2693 4.18 2724 4.38 2754 4.57 2784 4.76 5400 3448 2688 3.83 2721 4.02 2753 4.22 2784 4.41 2815 4.62 2844 4.82 2874 5.02 2903 5.23 2931 5.44 2960 5.65 5800 3704 2882 4.71 2913 4.92 2943 5.13 2973 5.34 3001 5.55 3030 5.77 3057 5.98 3084 6.21 3111 6.43 3138 6.65 6200 3959 3077 5.73 3106 5.95 3134 6.17 3162 6.39 3189 6.62 3215 6.84 3242 7.08 3267 7.31 3293 7.55 3318 7.78 6600 4214 3271 6.88 3299 7.11 3326 7.35 3352 7.58 3378 7.83 3403 8.06 3428 8.31 3452 8.55 3476 8.80 3500 9.05 Volume O.Vel 3"SP 3-1/2"SP 4"SP 4-1/2"SP 5"SP 5-1/2"SP 6"SP 6-1/2"SP 7"SP 7-1/2"SP 1600 1022 1674 1.01 1800 1149 1709 1.12 1819 1.32 2000 1277 1755 1.23 1857 1.44 1958 1.66 2056 1.89 2200 1405 1807 1.36 1904 1.58 1999 1.81 2090 2.05 2181 2.29 2269 2.54 2400 1533 1860 1.50 1957 1.73 2048 1.97 2135 2.22 2220 2.47 2303 2.73 2386 2.99 2467 3.27 2600 1660 1918 1.66 2011 1.90 2101 2.15 2186 2.40 2268 2.67 2347 2.94 2424 3.21 2501 3.49 2577 3.78 2653 4.08 2800 1788 1981 1.84 2069 2.09 2155 2.34 2239 2.61 2319 2.88 2396 3.15 2470 3.44 2544 3.74 2616 4.04 2687 4.34 3000 1916 2048 2.04 2131 2.29 2213 2.56 2294 2.83 2373 3.11 2449 3.40 2522 3.69 2592 3.99 2661 4.30 2729 4.62 3200 2043 2119 2.26 2198 2.52 2275 2.79 2352 3.07 2428 3.36 2502 3.66 2574 3.96 2644 4.27 2712 4.59 2777 4.91 3400 2171 2193 2.49 2268 2.77 2341 3.05 2414 3.33 2487 3.63 2558 3.94 2628 4.25 2697 4.57 2765 4.90 2828 5.22 3600 2299 2269 2.75 2341 3.03 2411 3.33 2480 3.62 2549 3.93 2618 4.24 2686 4.57 2753 4.90 2818 5.23 2881 5.57 3800 2426 2347 3.03 2416 3.33 2484 3.63 2550 3.94 2616 4.25 2681 4.57 2746 4.90 2810 5.24 2873 5.58 2936 5.93 4000 2554 2426 3.32 2493 3.64 2559 3.96 2622 4.27 2685 4.60 2747 4.93 2809 5.27 2871 5.61 2932 5.96 2992 6.32 4200 2682 2508 3.64 2572 3.98 2636 4.31 2697 4.64 2757 4.97 2817 5.31 2876 5.66 2936 6.01 2994 6.37 3052 6.74 4400 2810 2590 3.98 2652 4.33 2713 4.68 2773 5.02 2832 5.37 2889 5.72 2946 6.08 3003 6.44 3059 6.81 3115 7.18 4600 2937 2673 4.35 2733 4.71 2792 5.07 2850 5.43 2907 5.80 2964 6.16 3018 6.53 3073 6.89 3127 7.28 3180 7.65 4800 3065 2757 4.74 2816 5.11 2874 5.49 2930 5.87 2985 6.25 3039 6.62 3093 7.01 3145 7.38 3197 7.77 3249 8.16 5000 3193 2842 5.15 2899 5.54 2955 5.94 3010 6.33 3064 6.73 3116 7.12 3168 7.51 3220 7.91 3269 8.30 3320 8.70 5400 3448 3015 6.07 3069 6.49 3121 6.91 3173 7.33 3224 7.76 3274 8.18 3323 8.60 3372 9.03 3419 9.45 3467 9.88 5800 3704 3190 7.10 3241 7.55 3291 8.00 3340 8.45 3389 8.91 3436 9.36 3483 9.81 3529 10.27 3574 10.72 3619 11.18 6200 3959 3368 8.26 3416 8.73 3464 9.22 3510 9.70 3556 10.18 3602 10.67 6600 4214 3547 9.55 3594 10.06 Volume O.Vel 8"SP 8-1/2"SP 9"SP 9-1/2"SP 10"SP 10-1/2"SP 11"SP 11-1/2"SP 12"SP 13"SP 2800 1788 2758 4.65 2828 4.96 2896 5.27 3000 1916 2796 4.94 2862 5.26 2930 5.59 2994 5.92 3060 6.26 3123 6.59 3200 2043 2841 5.24 2905 5.58 2968 5.91 3031 6.26 3093 6.61 3154 6.96 3215 7.31 3276 7.67 3335 8.04 3400 2171 2891 5.56 2954 5.91 3013 6.25 3074 6.62 3133 6.97 3193 7.34 3250 7.70 3309 8.08 3366 8.44 3480 9.21 3600 2299 2944 5.91 3005 6.26 3064 6.62 3122 6.99 3179 7.35 3236 7.73 3291 8.10 3348 8.49 3403 8.87 3513 9.67 3800 2427 2998 6.29 3057 6.65 3116 7.01 3173 7.38 3229 7.76 3284 8.14 3338 8.53 3392 8.92 3446 9.32 3552 10.13 4000 2554 3053 6.69 3111 7.05 3169 7.43 3226 7.81 3281 8.19 3336 8.58 3389 8.98 3441 9.38 3493 9.79 3595 10.62 4200 2682 3111 7.11 3167 7.49 3224 7.87 3280 8.26 3334 8.65 3388 9.05 3441 9.45 3492 9.86 3544 10.28 4400 2810 3171 7.56 3226 7.95 3281 8.34 3335 8.74 3389 9.14 3442 9.55 3494 9.96 3545 10.38 3595 10.80 4600 2937 3234 8.04 3288 8.44 3340 8.84 3394 9.25 3445 9.66 3498 10.08 3548 10.50 3599 10.93 4800 3065 3300 8.56 3352 8.96 3403 9.37 3454 9.79 3504 10.20 3555 10.64 3604 11.06 5000 3193 3369 9.11 3419 9.51 3468 9.93 3517 10.35 3566 10.79 3614 11.22 5400 3448 3513 10.30 3560 10.74 3605 11.16 The BHP shown does not include belt drive losses. Belt drive is not recommended above 3600 RPM. The performance shown is for fan with outlet duct. 11

1825 SISW Wheel Diameter = 18.25 in. Outlet Area = 1.91 sq. ft. inside Maximum BHP =.394 x (RPM/1000) 3 Tip Speed, fpm = 4.78 x RPM Class I RPM 2657 Class II RPM 3244 Volume O.Vel 1/4"SP 1/2"SP 3/4"SP 1"SP 1-1/4"SP 1-1/2"SP 1-3/4"SP 2"SP 2-1/4"SP 2-1/2"SP 1000 523 516 0.05 643 0.10 1200 628 568 0.07 683 0.12 783 0.18 1400 733 626 0.09 726 0.15 822 0.21 906 0.28 1600 837 686 0.12 776 0.18 864 0.25 945 0.32 1020 0.40 1092 0.48 1800 942 747 0.15 833 0.22 909 0.29 987 0.37 1059 0.46 1126 0.54 1190 0.63 2000 1046 810 0.19 891 0.27 962 0.34 1031 0.43 1100 0.52 1166 0.61 1227 0.71 1285 0.80 1342 0.90 2200 1151 874 0.23 950 0.32 1018 0.40 1081 0.49 1145 0.58 1207 0.68 1267 0.79 1324 0.89 1377 0.99 1430 1.10 2400 1256 940 0.29 1011 0.38 1077 0.47 1136 0.56 1193 0.66 1251 0.76 1309 0.87 1364 0.98 1417 1.09 1468 1.21 2600 1360 1006 0.35 1073 0.44 1136 0.54 1193 0.65 1246 0.75 1299 0.85 1353 0.97 1407 1.08 1458 1.20 1508 1.32 2800 1465 1073 0.42 1136 0.52 1196 0.63 1251 0.74 1303 0.85 1352 0.96 1401 1.07 1451 1.19 1501 1.32 1549 1.44 3000 1570 1140 0.50 1200 0.61 1257 0.72 1310 0.84 1360 0.95 1407 1.07 1453 1.19 1499 1.31 1546 1.44 1592 1.58 3200 1674 1208 0.59 1265 0.70 1319 0.82 1370 0.95 1419 1.07 1465 1.20 1509 1.32 1551 1.45 1594 1.58 1638 1.72 3400 1779 1276 0.69 1330 0.81 1382 0.94 1431 1.07 1478 1.20 1524 1.33 1566 1.47 1607 1.60 1647 1.73 1687 1.87 3600 1884 1345 0.80 1396 0.93 1446 1.07 1493 1.20 1539 1.34 1582 1.48 1624 1.62 1664 1.76 1702 1.90 1740 2.04 3800 1988 1414 0.93 1463 1.06 1510 1.21 1556 1.35 1599 1.49 1642 1.64 1682 1.79 1721 1.93 1759 2.08 1795 2.23 4000 2093 1483 1.07 1530 1.21 1575 1.36 1619 1.51 1661 1.66 1702 1.81 1742 1.96 1780 2.12 1817 2.28 1852 2.43 4200 2198 1553 1.22 1598 1.37 1641 1.52 1683 1.68 1724 1.84 1763 2.00 1802 2.16 1839 2.32 1875 2.48 1910 2.65 4400 2302 1622 1.39 1665 1.54 1707 1.70 1748 1.87 1787 2.03 1825 2.20 1862 2.36 1899 2.53 1934 2.70 1969 2.88 4600 2407 1692 1.57 1733 1.73 1773 1.90 1813 2.07 1851 2.24 1888 2.41 1924 2.59 1959 2.76 1993 2.94 2027 3.12 4800 2511 1762 1.77 1802 1.94 1840 2.11 1878 2.29 1915 2.47 1951 2.65 1986 2.83 2020 3.01 2054 3.19 2086 3.38 5000 2616 1833 1.98 1871 2.16 1908 2.34 1944 2.52 1980 2.71 2014 2.89 2049 3.08 2082 3.27 2114 3.46 2146 3.65 5400 2825 1973 2.47 2009 2.66 2043 2.85 2077 3.04 2111 3.24 2143 3.44 2175 3.64 2207 3.85 2238 4.05 2268 4.25 5800 3035 2114 3.03 2147 3.23 2180 3.43 2212 3.65 2243 3.85 2274 4.07 2304 4.28 2334 4.50 2363 4.72 2392 4.93 6200 3244 2255 3.66 2287 3.88 2317 4.10 2347 4.32 2376 4.55 2406 4.77 2434 5.00 2463 5.23 2490 5.46 2518 5.69 6600 3453 2397 4.39 2427 4.62 2455 4.85 2483 5.09 2511 5.33 2539 5.56 2566 5.80 2593 6.04 2619 6.29 2645 6.53 7000 3663 2539 5.20 2567 5.45 2594 5.70 2621 5.95 2647 6.19 2673 6.45 2699 6.70 2725 6.96 2749 7.21 2775 7.47 7500 3924 2716 6.36 2743 6.63 2768 6.89 2793 7.16 2817 7.42 2842 7.69 2866 7.96 2890 8.22 2914 8.50 2937 8.77 8000 4186 2894 7.68 2919 7.97 2943 8.25 2966 8.53 2990 8.81 3012 9.09 3035 9.38 3058 9.67 3080 9.95 3102 10.24 Volume O.Vel 3"SP 3-1/2"SP 4"SP 4-1/2"SP 5"SP 5-1/2"SP 6"SP 6-1/2"SP 7"SP 7-1/2"SP 2300 1203 1548 1.38 2600 1360 1602 1.57 1690 1.82 1780 2.09 2800 1465 1641 1.70 1729 1.97 1810 2.24 1892 2.52 3000 1570 1682 1.85 1767 2.13 1849 2.41 1925 2.70 2001 3.00 2079 3.31 3200 1674 1725 2.00 1808 2.29 1888 2.59 1964 2.89 2036 3.20 2107 3.51 2179 3.84 3400 1779 1769 2.16 1851 2.47 1928 2.78 2003 3.10 2074 3.42 2142 3.74 2209 4.07 2277 4.41 2345 4.77 3600 1884 1816 2.34 1895 2.66 1970 2.98 2043 3.31 2113 3.64 2181 3.98 2246 4.32 2310 4.67 2373 5.02 2438 5.39 3800 1988 1867 2.53 1940 2.86 2014 3.19 2085 3.53 2154 3.88 2221 4.23 2285 4.59 2348 4.95 2409 5.31 2468 5.67 4000 2093 1920 2.74 1989 3.07 2059 3.41 2128 3.77 2196 4.12 2261 4.49 2325 4.86 2388 5.24 2447 5.62 2505 5.99 4200 2198 1977 2.97 2041 3.30 2106 3.65 2173 4.02 2239 4.39 2303 4.76 2366 5.15 2427 5.54 2487 5.93 2543 6.32 4400 2302 2033 3.22 2095 3.56 2157 3.91 2220 4.28 2284 4.66 2347 5.05 2408 5.45 2468 5.85 2527 6.26 2583 6.66 4600 2407 2091 3.48 2152 3.83 2211 4.19 2270 4.56 2331 4.95 2391 5.35 2451 5.76 2510 6.17 2568 6.59 2623 7.01 4800 2511 2150 3.75 2210 4.12 2267 4.49 2323 4.87 2380 5.26 2438 5.67 2496 6.09 2553 6.51 2610 6.94 2665 7.38 5000 2616 2208 4.04 2267 4.43 2323 4.81 2378 5.20 2432 5.60 2486 6.01 2542 6.44 2598 6.87 2653 7.31 2708 7.76 5400 2825 2327 4.67 2384 5.08 2439 5.50 2491 5.92 2542 6.34 2592 6.76 2641 7.19 2692 7.64 2744 8.10 2795 8.57 5800 3035 2448 5.37 2503 5.81 2556 6.26 2607 6.71 2657 7.17 2704 7.61 2750 8.05 2797 8.51 2843 8.97 2890 9.45 6200 3244 2572 6.16 2624 6.62 2675 7.10 2724 7.57 2773 8.06 2819 8.54 2863 9.01 2908 9.49 2950 9.97 2994 10.46 6600 3453 2697 7.03 2747 7.53 2796 8.02 2843 8.52 2890 9.03 2935 9.54 2979 10.05 3022 10.57 3063 11.06 3104 11.58 7000 3663 2823 7.99 2871 8.51 2918 9.04 2964 9.56 3009 10.09 3053 10.64 3096 11.17 3138 11.71 3178 12.25 3218 12.79 7500 3924 2984 9.33 3029 9.88 3074 10.44 3118 11.01 3160 11.56 3202 12.13 3244 12.70 8000 4186 3146 10.82 3190 11.42 3232 12.01 Volume O.Vel 8"SP 8-1/2"SP 9"SP 9-1/2"SP 10"SP 10-1/2"SP 11"SP 11-1/2"SP 12"SP 13"SP 3800 1988 2528 6.06 2590 6.45 4000 2093 2562 6.38 2618 6.77 2676 7.17 2733 7.59 4200 2198 2600 6.72 2654 7.12 2708 7.52 2762 7.94 2817 8.36 2872 8.80 4400 2302 2639 7.07 2693 7.49 2745 7.90 2798 8.33 2848 8.74 2900 9.18 2952 9.62 3005 10.09 4600 2407 2678 7.43 2733 7.87 2784 8.30 2835 8.74 2885 9.16 2934 9.61 2983 10.05 3033 10.51 3083 10.97 4800 2511 2719 7.81 2772 8.26 2824 8.70 2874 9.15 2924 9.61 2972 10.05 3019 10.51 3067 10.97 3113 11.43 3209 12.38 5000 2616 2760 8.21 2812 8.66 2864 9.12 2913 9.58 2964 10.06 3011 10.51 3059 11.00 3104 11.45 3150 11.93 3239 12.88 5400 2825 2847 9.05 2897 9.52 2946 10.00 2996 10.49 3043 10.98 3091 11.48 3136 11.97 3183 12.48 3227 12.98 5800 3035 2938 9.95 2986 10.45 3034 10.97 3081 11.47 3128 11.99 3173 12.50 3219 13.03 6200 3244 3037 10.95 3081 11.46 3126 11.99 3171 12.52 3215 13.06 6600 3453 3144 12.08 3185 12.60 3225 13.12 The BHP shown does not include belt drive losses. The performance shown is for fan with outlet duct. 12

Wheel Diameter = 20.00 in. Outlet Area = 2.29 sq. ft. inside Maximum BHP =.622 x (RPM/1000) 3 Tip Speed, fpm = 5.24 x RPM Class I RPM 2430 Class II RPM 2956 2000 SISW Volume O.Vel 1/4"SP 1/2"SP 3/4"SP 1"SP 1-1/4"SP 1-1/2"SP 1-3/4"SP 2"SP 2-1/4"SP 2-1/2"SP 1400 610 510 0.08 617 0.14 709 0.21 1600 697 553 0.10 649 0.17 737 0.24 817 0.32 1800 784 598 0.13 684 0.20 768 0.28 845 0.36 915 0.45 2000 871 644 0.15 725 0.23 801 0.32 875 0.41 942 0.50 1005 0.60 2200 958 691 0.19 768 0.27 837 0.36 907 0.46 972 0.56 1033 0.66 1090 0.77 2400 1046 739 0.23 813 0.32 877 0.41 941 0.51 1004 0.62 1063 0.73 1119 0.85 1172 0.96 1225 1.08 2600 1133 787 0.27 858 0.37 920 0.47 978 0.57 1037 0.69 1095 0.80 1150 0.93 1201 1.05 1251 1.17 1299 1.30 2800 1220 837 0.32 904 0.43 964 0.54 1019 0.65 1073 0.76 1128 0.88 1181 1.01 1232 1.14 1281 1.27 1327 1.41 3000 1307 887 0.38 950 0.49 1008 0.61 1062 0.72 1112 0.84 1163 0.97 1214 1.10 1263 1.24 1311 1.38 1357 1.52 3200 1394 937 0.44 998 0.56 1054 0.68 1105 0.81 1153 0.93 1200 1.06 1248 1.20 1296 1.34 1343 1.49 1388 1.63 3400 1481 988 0.52 1046 0.64 1100 0.77 1150 0.90 1197 1.04 1241 1.17 1285 1.31 1331 1.45 1376 1.60 1419 1.76 3600 1568 1039 0.60 1094 0.73 1146 0.86 1195 1.00 1241 1.14 1284 1.28 1325 1.43 1367 1.57 1410 1.73 1453 1.89 3800 1656 1091 0.68 1144 0.82 1193 0.97 1240 1.11 1285 1.26 1328 1.41 1367 1.56 1406 1.71 1446 1.87 1487 2.03 4000 1743 1143 0.78 1193 0.93 1241 1.08 1287 1.23 1330 1.39 1371 1.54 1410 1.70 1448 1.85 1485 2.01 1523 2.18 4200 1830 1195 0.89 1243 1.04 1289 1.20 1333 1.36 1375 1.52 1416 1.68 1454 1.85 1491 2.01 1527 2.17 1562 2.34 4400 1917 1247 1.01 1294 1.17 1338 1.33 1381 1.50 1422 1.67 1461 1.84 1499 2.01 1535 2.18 1570 2.35 1603 2.52 4600 2004 1300 1.14 1344 1.30 1387 1.47 1428 1.65 1468 1.82 1506 2.00 1543 2.18 1579 2.35 1613 2.53 1646 2.71 4800 2091 1352 1.28 1395 1.45 1436 1.63 1476 1.81 1515 1.99 1552 2.17 1589 2.36 1623 2.54 1657 2.73 1689 2.92 5000 2178 1405 1.43 1446 1.61 1486 1.79 1525 1.98 1562 2.16 1599 2.35 1634 2.55 1668 2.74 1702 2.94 1733 3.13 5400 2353 1511 1.77 1549 1.96 1587 2.16 1623 2.36 1659 2.56 1693 2.76 1726 2.97 1759 3.17 1791 3.38 1822 3.59 5800 2527 1618 2.16 1653 2.37 1688 2.57 1723 2.79 1756 3.00 1789 3.22 1820 3.44 1852 3.66 1882 3.88 1912 4.10 6200 2701 1724 2.61 1758 2.83 1791 3.05 1823 3.27 1855 3.50 1886 3.73 1916 3.97 1946 4.20 1975 4.43 2004 4.67 6600 2875 1831 3.12 1863 3.35 1894 3.58 1924 3.82 1955 4.06 1984 4.30 2013 4.55 2042 4.80 2069 5.04 2097 5.30 7000 3050 1938 3.68 1968 3.93 1998 4.18 2027 4.43 2055 4.68 2083 4.94 2111 5.20 2138 5.46 2165 5.73 2191 5.98 7500 3267 2073 4.49 2101 4.76 2129 5.02 2155 5.29 2182 5.56 2209 5.83 2235 6.11 2261 6.39 2286 6.66 2311 6.94 8000 3485 2207 5.41 2234 5.70 2260 5.98 2285 6.26 2310 6.55 2335 6.83 2360 7.13 2384 7.42 2408 7.72 2432 8.01 8500 3703 2342 6.45 2367 6.76 2391 7.05 2416 7.36 2439 7.65 2463 7.96 2486 8.26 2509 8.58 2532 8.89 2555 9.20 9000 3921 2476 7.62 2501 7.94 2524 8.26 2547 8.58 2569 8.89 2591 9.21 2614 9.54 2635 9.86 2657 10.19 2679 10.52 9500 4139 2611 8.93 2634 9.26 2657 9.60 2678 9.93 2700 10.27 2721 10.60 2742 10.94 2763 11.28 2783 11.62 2804 11.97 Volume O.Vel 3"SP 3-1/2"SP 4"SP 4-1/2"SP 5"SP 5-1/2"SP 6"SP 6-1/2"SP 7"SP 7-1/2"SP 2800 1220 1417 1.68 3000 1307 1444 1.80 1527 2.10 3200 1394 1473 1.93 1553 2.24 1632 2.56 3400 1481 1503 2.07 1582 2.39 1657 2.72 1731 3.06 3600 1568 1535 2.22 1612 2.55 1687 2.90 1756 3.24 1826 3.59 1897 3.97 3800 1656 1567 2.37 1643 2.71 1716 3.07 1785 3.43 1851 3.80 1917 4.17 1984 4.57 4000 1743 1601 2.53 1675 2.89 1747 3.26 1815 3.63 1880 4.01 1943 4.40 2006 4.79 2068 5.20 4200 1830 1635 2.70 1708 3.07 1778 3.45 1846 3.84 1910 4.24 1972 4.63 2033 5.04 2091 5.44 2151 5.86 4400 1917 1672 2.88 1742 3.26 1811 3.66 1877 4.06 1940 4.46 2002 4.88 2062 5.30 2119 5.71 2175 6.13 2232 6.58 4600 2004 1711 3.08 1777 3.47 1844 3.87 1908 4.28 1971 4.70 2032 5.13 2091 5.56 2149 6.00 2203 6.43 2257 6.87 4800 2091 1752 3.29 1814 3.68 1878 4.09 1941 4.52 2003 4.95 2063 5.39 2121 5.83 2178 6.29 2233 6.74 2285 7.19 5000 2178 1794 3.52 1853 3.91 1914 4.33 1975 4.77 2036 5.21 2095 5.66 2152 6.11 2208 6.58 2263 7.05 2315 7.52 5400 2353 1881 4.02 1937 4.43 1992 4.86 2047 5.30 2104 5.77 2161 6.24 2217 6.73 2270 7.21 2323 7.70 2375 8.20 5800 2527 1970 4.56 2024 5.01 2076 5.45 2127 5.91 2178 6.38 2231 6.87 2283 7.37 2336 7.88 2387 8.41 2437 8.92 6200 2701 2059 5.15 2112 5.63 2163 6.11 2212 6.59 2259 7.07 2307 7.56 2355 8.08 2405 8.62 2454 9.16 2502 9.70 6600 2875 2150 5.80 2201 6.31 2251 6.82 2299 7.34 2344 7.84 2389 8.35 2433 8.87 2479 9.41 2525 9.96 2571 10.53 7000 3050 2242 6.51 2292 7.05 2340 7.59 2387 8.13 2432 8.68 2474 9.21 2517 9.75 2559 10.30 2601 10.86 2644 11.44 7500 3267 2359 7.51 2407 8.07 2453 8.64 2498 9.22 2542 9.81 2584 10.38 2625 10.96 2665 11.54 2704 12.11 2743 12.71 8000 3485 2479 8.61 2524 9.21 2568 9.81 2611 10.42 2654 11.04 2695 11.65 2734 12.27 2774 12.89 2811 13.50 2849 14.12 8500 3703 2599 9.83 2642 10.46 2685 11.11 2726 11.74 2767 12.38 2807 13.04 2845 13.69 2884 14.36 2920 15.00 9000 3921 2721 11.19 2762 11.85 2803 12.51 2843 13.20 2882 13.86 2920 14.55 9500 4139 2844 12.66 2884 13.36 2923 14.07 Volume O.Vel 8"SP 8-1/2"SP 9"SP 9-1/2"SP 10"SP 10-1/2"SP 11"SP 11-1/2"SP 12"SP 13"SP 4600 2004 2312 7.33 2367 7.80 4800 2091 2337 7.65 2389 8.12 2441 8.60 2495 9.11 5000 2178 2365 7.99 2416 8.48 2465 8.95 2515 9.45 2566 9.96 2617 10.49 5400 2353 2425 8.71 2474 9.21 2523 9.73 2568 10.23 2615 10.75 2660 11.26 2707 11.80 2753 12.34 2802 12.92 5800 2527 2486 9.45 2535 9.99 2582 10.52 2628 11.07 2673 11.61 2717 12.16 2760 12.70 2804 13.26 2845 13.81 2932 14.96 6200 2701 2551 10.26 2597 10.81 2643 11.37 2689 11.94 2733 12.51 2777 13.10 2819 13.67 2861 14.25 2903 14.84 6600 2875 2617 11.12 2662 11.69 2708 12.29 2751 12.87 2795 13.47 2837 14.06 2880 14.68 2921 15.28 7000 3050 2687 12.03 2731 12.63 2774 13.25 2817 13.86 2860 14.49 2901 15.10 2942 15.74 7500 3268 2782 13.30 2822 13.92 2862 14.54 2903 15.19 2943 15.83 8000 3485 2885 14.73 2921 15.36 The BHP shown does not include belt drive losses. The performance shown is for fan with outlet duct. 13

2225 SISW Wheel Diameter = 22.25 in. Outlet Area = 2.85 sq. ft. inside Maximum BHP = 1.07 x (RPM/1000) 3 Tip Speed, fpm = 5.83 x RPM Class I RPM 2180 Class II RPM 2669 Class III RPM 3357 Volume O.Vel 1/4"SP 3/8"SP 1/2"SP 5/8"SP 3/4"SP 7/8"SP 1"SP 1-1/4"SP 1-1/2"SP 1-3/4"SP 1000 352 368 0.05 1500 528 425 0.08 480 0.11 529 0.15 576 0.19 2000 704 500 0.13 543 0.17 586 0.21 627 0.26 665 0.30 701 0.35 736 0.40 2500 880 583 0.19 621 0.24 655 0.29 689 0.34 723 0.40 757 0.45 789 0.51 850 0.63 906 0.75 3000 1056 669 0.29 703 0.34 735 0.40 765 0.46 793 0.52 821 0.58 850 0.64 906 0.78 959 0.92 1009 1.06 3500 1232 758 0.41 789 0.47 818 0.54 846 0.61 872 0.68 897 0.74 921 0.81 969 0.95 1018 1.11 1066 1.27 4000 1408 850 0.56 877 0.64 904 0.71 929 0.79 954 0.86 977 0.94 1000 1.02 1043 1.18 1085 1.34 1127 1.51 4500 1584 943 0.76 968 0.84 992 0.92 1015 1.01 1038 1.09 1060 1.18 1081 1.27 1122 1.44 1161 1.62 1198 1.79 5000 1760 1037 0.99 1059 1.09 1081 1.18 1103 1.27 1124 1.37 1145 1.46 1165 1.55 1204 1.75 1241 1.94 1276 2.14 5500 1936 1132 1.28 1152 1.38 1173 1.48 1193 1.58 1212 1.69 1232 1.79 1250 1.89 1287 2.10 1322 2.31 1356 2.53 6000 2112 1227 1.62 1246 1.73 1265 1.84 1284 1.95 1302 2.06 1320 2.17 1338 2.28 1372 2.51 1405 2.74 1438 2.97 6500 2288 1323 2.03 1341 2.14 1358 2.26 1376 2.38 1393 2.49 1410 2.61 1426 2.74 1459 2.98 1490 3.22 1521 3.47 7000 2464 1420 2.49 1436 2.61 1452 2.74 1469 2.87 1485 2.99 1501 3.12 1516 3.25 1547 3.51 1577 3.77 1606 4.04 7500 2640 1516 3.03 1532 3.16 1547 3.29 1562 3.42 1578 3.56 1592 3.69 1607 3.83 1636 4.11 1664 4.39 1692 4.67 8000 2816 1613 3.63 1628 3.77 1642 3.91 1657 4.06 1671 4.20 1685 4.35 1699 4.49 1726 4.78 1753 5.08 1780 5.38 8500 2992 1711 4.32 1724 4.47 1738 4.62 1752 4.77 1765 4.92 1778 5.07 1792 5.23 1817 5.53 1843 5.84 1868 6.16 9000 3168 1808 5.09 1821 5.25 1834 5.40 1847 5.56 1860 5.72 1872 5.88 1885 6.04 1909 6.37 1934 6.70 1958 7.03 9500 3344 1905 5.94 1918 6.12 1930 6.28 1942 6.45 1955 6.62 1967 6.78 1978 6.95 2002 7.30 2025 7.64 2048 7.99 10000 3520 2003 6.90 2015 7.07 2027 7.25 2038 7.42 2050 7.60 2062 7.78 2073 7.95 2095 8.31 2117 8.67 2139 9.04 10500 3696 2101 7.94 2112 8.13 2124 8.32 2135 8.50 2146 8.68 2157 8.87 2168 9.06 2189 9.43 2210 9.81 2231 10.18 11000 3872 2199 9.10 2210 9.29 2221 9.49 2231 9.68 2242 9.87 2252 10.06 2263 10.26 2283 10.65 2303 11.04 2324 11.44 11500 4048 2297 10.36 2307 10.56 2318 10.77 2328 10.97 2338 11.17 2348 11.37 2358 11.57 2378 11.98 2397 12.38 2417 12.80 12000 4224 2395 11.73 2405 11.94 2415 12.15 2425 12.37 2435 12.58 2444 12.78 2454 12.99 2473 13.43 2491 13.84 2510 14.27 13000 4576 2591 14.84 2601 15.06 2610 15.29 2619 15.53 2628 15.76 2637 15.98 2646 16.20 2663 16.66 2681 17.13 2698 17.57 14000 4928 2788 18.45 2797 18.70 2805 18.94 2814 19.19 2822 19.44 2831 19.69 2839 19.93 2855 20.41 2871 20.91 2888 21.41 Volume O.Vel 2"SP 2-1/2"SP 3"SP 3-1/2"SP 4"SP 4-1/2"SP 5"SP 5-1/2"SP 6"SP 6-1/2"SP 3000 1056 1057 1.20 1151 1.51 3500 1232 1111 1.43 1197 1.76 1277 2.10 4000 1408 1170 1.68 1252 2.05 1328 2.42 1400 2.80 1470 3.20 4500 1584 1235 1.98 1311 2.37 1385 2.78 1454 3.19 1520 3.62 1583 4.05 1645 4.49 1709 4.96 5000 1760 1309 2.33 1376 2.74 1445 3.17 1511 3.62 1575 4.08 1637 4.55 1696 5.02 1752 5.50 1807 5.98 1864 6.49 5500 1936 1388 2.74 1449 3.17 1510 3.62 1572 4.09 1634 4.58 1693 5.08 1751 5.59 1806 6.11 1859 6.63 1910 7.14 6000 2112 1469 3.20 1528 3.67 1583 4.14 1639 4.62 1696 5.14 1752 5.67 1808 6.20 1861 6.75 1914 7.31 1964 7.87 6500 2288 1551 3.72 1608 4.23 1661 4.73 1713 5.24 1764 5.76 1816 6.31 1868 6.87 1920 7.45 1970 8.03 2020 8.62 7000 2464 1634 4.30 1689 4.84 1741 5.39 1791 5.93 1838 6.47 1885 7.03 1933 7.61 1982 8.21 2031 8.83 2078 9.45 7500 2640 1719 4.95 1772 5.52 1822 6.10 1870 6.69 1916 7.27 1961 7.85 2005 8.44 2049 9.05 2094 9.68 2139 10.33 8000 2816 1806 5.68 1856 6.28 1904 6.89 1951 7.51 1996 8.13 2039 8.75 2081 9.37 2122 10.00 2163 10.63 2205 11.30 8500 2992 1893 6.48 1941 7.12 1988 7.76 2033 8.41 2077 9.07 2119 9.73 2159 10.39 2199 11.04 2237 11.70 2276 12.37 9000 3168 1982 7.37 2028 8.04 2073 8.71 2116 9.40 2159 10.09 2199 10.78 2239 11.48 2278 12.18 2315 12.86 2351 13.56 9500 3344 2071 8.33 2115 9.04 2158 9.75 2200 10.47 2241 11.19 2281 11.92 2320 12.65 2357 13.39 2394 14.13 2429 14.84 10000 3520 2161 9.40 2204 10.14 2245 10.89 2286 11.64 2325 12.38 2364 13.15 2402 13.92 2438 14.68 2474 15.46 2509 16.23 10500 3696 2252 10.57 2293 11.34 2333 12.11 2372 12.90 2410 13.69 2447 14.47 2484 15.27 2520 16.09 2554 16.88 2589 17.71 11000 3872 2343 11.83 2383 12.63 2421 13.45 2459 14.27 2496 15.08 2532 15.91 2567 16.74 2602 17.57 2636 18.42 2669 19.25 11500 4048 2435 13.21 2474 14.05 2510 14.89 2547 15.73 2583 16.60 2617 17.45 2652 18.31 2686 19.18 2719 20.04 2751 20.93 12000 4224 2528 14.70 2565 15.56 2600 16.44 2636 17.33 2670 18.21 2704 19.10 2737 20.00 2770 20.89 2802 21.80 2834 22.70 13000 4576 2715 18.03 2749 18.96 2782 19.91 2815 20.84 2847 21.81 2879 22.75 2911 23.73 2941 24.68 2972 25.66 3001 26.61 14000 4928 2903 21.89 2935 22.88 2966 23.88 2997 24.89 3027 25.90 3057 26.93 3086 27.95 3115 28.98 3144 30.02 3172 31.04 Volume O.Vel 7"SP 8"SP 9"SP 10"SP 12"SP 14"SP 16"SP 18"SP 20"SP 21"SP 5500 1936 1960 7.67 2063 8.78 6000 2112 2013 8.43 2107 9.58 2199 10.75 6500 2288 2068 9.23 2160 10.44 2247 11.66 2332 12.91 7000 2464 2125 10.08 2215 11.36 2302 12.67 2384 13.98 2542 16.68 7500 2640 2185 11.00 2272 12.33 2356 13.70 2438 15.09 2590 17.90 2738 20.81 8000 2816 2247 11.99 2332 13.39 2414 14.80 2493 16.25 2644 19.22 2785 22.23 2922 25.33 8500 2992 2315 13.06 2394 14.51 2474 15.99 2551 17.50 2699 20.59 2837 23.74 2969 26.95 3098 30.23 9000 3168 2388 14.27 2461 15.72 2536 17.25 2611 18.83 2755 22.04 2891 25.30 3021 28.67 3144 32.04 3265 35.50 3327 37.31 9500 3344 2464 15.59 2533 17.06 2602 18.61 2673 20.22 2814 23.56 2947 26.93 3075 30.44 3197 33.99 3312 37.51 10000 3520 2542 16.99 2608 18.53 2673 20.09 2739 21.72 2874 25.17 3004 28.66 3130 32.27 3250 35.97 10500 3696 2622 18.50 2686 20.11 2748 21.72 2810 23.37 2937 26.86 3063 30.49 3186 34.20 3305 38.02 11000 3872 2703 20.12 2766 21.80 2826 23.47 2884 25.15 3003 28.67 3125 32.40 3245 36.25 11500 4048 2783 21.80 2845 23.57 2905 25.34 2962 27.09 3074 30.64 3189 34.42 3305 38.40 12000 4224 2865 23.62 2926 25.45 2984 27.28 3040 29.12 3148 32.77 3256 36.59 13000 4576 3031 27.59 3089 29.55 3145 31.53 3200 33.53 3303 37.46 14000 4928 3201 32.10 3255 34.16 3309 36.26 The BHP shown does not include belt drive losses. The performance shown is for fan with outlet duct. 14