SILENTVANE
™
DOUBLE WIDTH
SIZE 3012
Wheel Diameter 12.25 inches 311 mm
Wheel Circumference 3.21 feet .9784 m
Inlet Diameter/Area 13.5 inches dia./1.98 sq. ft. 343 mm/.1839 m
Outlet Size/Area 12.79 x 17.35 inches I.D./1.54 sq. ft. 325 x 441 mm/.1431 m
Tip Speed 3.21 x RPM ft./minute .9779 x RPM m/minute
Maximum BHP .123 x (RPM ¸ 1000)
VOL
CFMOVFPM
1240 800 894 0.10 977 0.13 1057 0.17 1128 0.20 1197 0.24 1265 0.28 1329 0.32 1466 0.41
1395 900 964 0.12 1043 0.16 1114 0.20 1185 0.23 1249 0.27 1309 0.31 1372 0.36 1489 0.45 1606 0.54
1550 1000 1035 0.15 1110 0.19 1178 0.23 1242 0.27 1306 0.31 1365 0.36 1421 0.40 1531 0.50 1637 0.59 1734 0.70
1705 1100 1107 0.18 1179 0.22 1245 0.27 1305 0.31 1364 0.36 1422 0.40 1477 0.45 1578 0.55 1679 0.65 1776 0.76
1860 1200 1180 0.22 1250 0.27 1313 0.31 1372 0.36 1427 0.41 1480 0.46 1534 0.51 1634 0.61 1726 0.72 1819 0.83
2015 1300 1256 0.27 1322 0.31 1383 0.36 1440 0.41 1493 0.46 1544 0.52 1592 0.57 1691 0.68 1782 0.79 1867 0.91
2170 1400 1335 0.32 1394 0.37 1453 0.42 1509 0.47 1561 0.53 1610 0.58 1657 0.64 1749 0.75 1838 0.87 1922 0.99
2325 1500 1415 0.38 1468 0.43 1525 0.48 1579 0.54 1629 0.59 1677 0.65 1723 0.71 1810 0.84 1896 0.96 1979 1.09
2480 1600 1495 0.44 1544 0.50 1598 0.56 1650 0.61 1699 0.67 1746 0.73 1791 0.80 1875 0.92 1954 1.05 2036 1.19
2635 1700 1577 0.52 1623 0.58 1672 0.63 1722 0.70 1770 0.76 1815 0.82 1859 0.89 1942 1.02 2020 1.16 2094 1.30
2790 1800 1658 0.60 1703 0.66 1746 0.72 1795 0.79 1841 0.85 1886 0.92 1929 0.98 2010 1.12 2086 1.27 2158 1.41
2945 1900 1740 0.69 1783 0.75 1824 0.82 1868 0.89 1914 0.95 1957 1.02 1999 1.09 2078 1.24 2153 1.39 2224 1.54
3100 2000 1823 0.79 1864 0.86 1904 0.93 1943 1.00 1987 1.07 2029 1.14 2070 1.21 2148 1.36 2221 1.51 2290 1.67
3410 2200 1989 1.02 2027 1.09 2064 1.17 2100 1.24 2135 1.32 2175 1.40 2214 1.48 2288 1.64 2359 1.80 2426 1.97
3720 2400 2156 1.29 2192 1.37 2226 1.46 2260 1.54 2292 1.62 2324 1.70 2361 1.79 2432 1.96 2500 2.13 2565 2.31
4030 2600 2324 1.61 2357 1.70 2390 1.79 2421 1.88 2452 1.97 2482 2.06 2511 2.15 2578 2.33 2643 2.52 2706 2.70
4340 2800 2493 1.99 2524 2.08 2555 2.17 2584 2.27 2613 2.36 2642 2.46 2670 2.56 2726 2.75 2789 2.95 2849 3.15
4650 3000 2662 2.41 2692 2.51 2720 2.61 2748 2.71 2776 2.82 2803 2.92 2830 3.02 2881 3.23 2936 3.44 2994 3.65
4960 3200 2832 2.90 2860 3.00 2887 3.11 2914 3.22 2940 3.33 2965 3.44 2991 3.55 3040 3.77 3088 3.99 3142 4.21
5270 3400 3002 3.45 3029 3.56 3054 3.67 3080 3.79 3104 3.90 3129 4.02 3153 4.13 3200 4.37 3246 4.60 3291 4.84
5580 3600 3173 4.06 3198 4.18 3222 4.30 3246 4.42 3270 4.54 3293 4.67 3317 4.79 3362 5.03 3406 5.28 3449 5.53
5890 3800 3344 4.75 3368 4.87 3391 5.00 3414 5.13 3436 5.26 3459 5.39 3481 5.51 3524 5.77 3567 6.03 3608 6.29
6200 4000 3515 5.51 3538 5.64 3560 5.78 3582 5.91 3603 6.04 3625 6.18 3646 6.31 3688 6.59 3728 6.86 3768 7.13
0.250 0.375 0.500 0.625 0.750 0.875 1.000 1.250 1.500 1.750
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
DOUBLE INLET
3
BHP .0917 x (RPM ¸ 1000)3kW
STATIC PRESSURE IN INCHES W.G.
2
2
MAXIMUM CLASS OPERATING RPM
FAN TEMPERATURE
SIZE 3012 -20° to 150°F -29° to 66°C
CLASS I 3545
CLASS II 4621
CLASS III —
CLASS IV —
VOL
CFMOVFPM
1860 1200 1909 0.95 2075 1.20
2015 1300 1952 1.03 2117 1.29 2271 1.56
2170 1400 2001 1.12 2159 1.39 2309 1.67 2453 1.96
2325 1500 2057 1.22 2203 1.49 2351 1.78 2488 2.08 2622 2.40
2480 1600 2113 1.33 2257 1.61 2394 1.90 2531 2.22 2659 2.54 2781 2.88 2932 3.25
2635 1700 2171 1.44 2313 1.73 2443 2.04 2574 2.36 2701 2.69 2821 3.04 2935 3.39 3075 3.78
2790 1800 2229 1.56 2369 1.87 2498 2.18 2619 2.51 2744 2.85 2864 3.21 2977 3.57 3086 3.94 3211 4.35
2945 1900 2291 1.69 2427 2.01 2555 2.34 2674 2.67 2788 3.02 2907 3.39 3020 3.76 3128 4.15 3231 4.54 3342 4.95
3100 2000 2356 1.83 2485 2.16 2611 2.50 2730 2.85 2841 3.20 2950 3.57 3063 3.96 3170 4.36 3273 4.76 3372 5.17
3410 2200 2490 2.14 2611 2.50 2727 2.86 2843 3.23 2953 3.61 3057 4.00 3157 4.39 3257 4.80 3359 5.23 3457 5.66
3720 2400 2626 2.50 2744 2.87 2853 3.26 2960 3.66 3067 4.06 3170 4.47 3268 4.89 3362 5.31 3453 5.75 3544 6.19
4030 2600 2766 2.89 2879 3.30 2986 3.71 3087 4.13 3184 4.56 3285 4.99 3382 5.44 3474 5.88 3564 6.34 3650 6.80
4340 2800 2907 3.35 3017 3.77 3121 4.21 3220 4.65 3314 5.10 3404 5.56 3497 6.03 3589 6.50 3677 6.98 3762 7.47
4650 3000 3050 3.87 3158 4.30 3259 4.76 3355 5.23 3447 5.70 3535 6.19 3619 6.68 3705 7.18 3792 7.68 3876 8.19
4960 3200 3196 4.44 3300 4.90 3398 5.37 3492 5.86 3582 6.36 3668 6.87 3751 7.39 3831 7.91 3909 8.44 3992 8.97
5270 3400 3343 5.08 3444 5.56 3539 6.05 3631 6.55 3718 7.08 3803 7.61 3884 8.15 3963 8.70 4039 9.25 4113 9.81
5580 3600 3492 5.78 3589 6.29 3682 6.81 3772 7.33 3857 7.86 3940 8.42 4019 8.99 4097 9.56 4172 10.14 4244 10.72
5890 3800 3649 6.56 3737 7.09 3827 7.63 3914 8.18 3998 8.73 4078 9.30 4156 9.89 4232 10.49 4306 11.09 4377 11.69
6200 4000 3808 7.41 3886 7.97 3973 8.53 4058 9.11 4140 9.68 4219 10.26 4295 10.86 4369 11.48 4442 12.11 4512 12.74
2.000 2.500 3.000 3.500 4.000 4.500 5.000 5.500 6.000 6.500
RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP RPM BHP
STATIC PRESSURE IN INCHES W.G.
Underlined figures in columns approximate Max. Static Efficiency and Quietest Selection. CL. I CL. II CL. III CL. IV
Refer to factors on page 54 to convert numbers above to the desired metric units.
The standard AMCA class range is shown by the shaded areas. Standard carbon steel fans may be used up to the Maximum Design RPM as listed above for each fan class.
For minimum motor size required see “Fan Starting Requirements,” page 9.
If the Maximum Safe Operating RPM is not shown, consult the factory.
Performance shown is for Installation Type B - Free Inlet, Ducted Outlet.
Performance ratings do not include the effects of appurtenances in the airstream. Power rating (BHP) does not include drive losses.
All capacities listed above are based on standard Air Density of 0.075 Lbs./Cu. Ft. at 70°F & 0 Ft. elevation (1.2 kg/m
3
at 21.1°C&0m).
32
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