Twin City ES-495 User Manual
Torque Requirements
ES-495
April 1997
SWSI BC/BAF Torque Requirements (in-lb)
FAN NESTED INLET VANES EXTERNAL INLET VANES
SIZE CL 1 CL 2 CL 3 CL 4 CL 1 CL2 CL 3 CL 4
122 N/A N/A N/A N/A 100 100 100 100
135 N/A N/A N/A N/A 100 100 100 110
150 N/A N/A N/A N/A 100 100 100 140
165 100 100 100 130 100 100 130 170
182 100 100 120 160 100 100 150 210
200 100 100 140 190 100 110 180 250
222 100 110 180 240 100 140 230 300
245 100 130 210 290 100 170 280 370
270 100 160 260 350 130 210 340 450
300 120 200 320 430 160 260 410 550
330 150 240 390 520 190 310 500 670
365 180 300 480 640 230 380 610 820
402 220 360 580 770 280 460 750 1000
445 260 440 710 950 340 570 910 1220
490 320 530 860 1150 410 690 1110 1480
542 390 650 1050 1400 510 840 1780 2380
600 480 800 1280 1720 820 1360 2180 2920
660 580 970 1550 2080 990 1640 2640 3530
730 710 1190 2290 3060 1210 2010 3230 4320
807 1050 1750 2800 3750 N/A N/A N/A N/A
890 1280 2120 3410 4550 N/A N/A N/A N/A
982 1550 2590 4150 5550 N/A N/A N/A N/A
DWDI BC/BAF
Torque Requirements (in-lb)
FAN NESTED INLET VANES
SIZE CL 1 CL 2 CL 3 CL 4
165 100 120 200 260
182 100 140 240 320
200 100 180 280 380
222 140 220 360 480
245 160 260 420 580
270 200 320 520 700
300 240 400 640 860
330 300 480 780 1040
365 360 600 960 1280
402 440 720 1160 1540
445 520 880 1420 1900
490 640 1060 1720 2300
542 780 1300 2100 2800
600 960 1600 2560 3440
660 1160 1940 3100 4160
730 1420 2380 4580 6120
807 2100 3500 5600 7500
890 2560 4240 6820 9100
982 3100 5180 8300 —
BCS Torque Requirements (in-lb)
FAN NESTED INLET VANES EXTERNAL INLET VANES
SIZE CL 17 CL 23 CL 26 CL 17 CL 23 CL 26
270 310 520 730 400 670 940
300 380 640 900 500 830 1160
330 460 780 1090 600 1000 1400
365 570 950 1330 730 1230 1720
402 690 1160 1620 890 1490 2740
445 840 1420 1980 1090 2400 3350
490 1020 1720 2400 1320 2910 4070
542 1260 2100 3540 2130 3570 4990
600 1540 3100 4330 2610 4370 6100
660 1860 3750 5240 3150 5280 7380
730 2740 4590 6410 3860 6460 9030
807 3350 5610 7840 N/A N/A N/A
890 4070 6820 9530 N/A N/A N/A
982 4960 8310 — N/A N/A N/A
©1997 Twin City Fan Companies, Ltd.
NOTES:
1. Standard length of the handle supplied
by Twin City Fan is 10". The force
required to operate inlet vane is:
Torque in In-Lb
Length of Lever
2. For sizing actuator, multiply above
torque by 1.2 for rotary and 1.5 for linear actuators.
RTF/HIB Torque Requirements (in-lb)
FAN NESTED INLET VANES EXTERNAL INLET VANES
SIZE CL 18/20 CL 23/24 CL 18/20 CL 23/24
180 N/A N/A 190 310
200 N/A N/A 230 370
220 N/A N/A 280 460
240 N/A N/A 340 550
270 390 640 410 670
300 480 780 500 820
330 580 950 610 1000
360 710 1170 750 1230
400 870 1430 920 1490
450 1060 1740 1120 1820
490 1290 2120 1360 2920
540 1580 2590 1670 3570
600 1930 3830 2690 4370
660 2810 4630 3250 5290
730 3430 5650 3970 6460
800 4200 6920 4860 7910
NOTES:
1. Standard length of the handle supplied by Twin City Fan is
10". The force required to operate inlet vane is:
Torque in In-Lb
Length of Lever
2. For sizing actuator, multiply above torque by 1.2 for rotary and
1.5 for linear actuators.
Industrial Torque Requirements (in-lb)
FAN EXTERNAL INLET VANES
SIZE CL 18/20 CL 23/24 CL 18/20
913 120 170 240
915 170 230 330
917 210 290 420
919 260 360 520
921 320 440 630
923 390 530 760
926 490 680 970
929 620 850 1220
933 800 1100 1580
937 1000 1380 1970
941 1230 1690 3180
945 1480 2680 3840
949 2320 3180 4560
954 2800 3840 5510
960 3470 4750 6810
Twin ciTy fan & blower | www.Tcf.com
5959 Trenton Lane N | Minneapolis, MN 55442 | Phone: 763-551-7600 | Fax: 763-551-7601
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