Engineering Bulletin
Table Of Contents
H and V Series (Page 12-16)
Deflection E
400 500 600 700 800 900 1000 1100 1200 1300 1400 1600 1800 2000
.010 .016 .022 .031 .040 .050 .062 .075 .090 .105 .122 .160 .202 .249
CFM 45 60 70 85 95 105 120 130 140 155 165 190 210 235
Throw 2.5 3.5 4.0 5.0 5.5 6.0 6.5 7.5 8.0 8.5 9.5 11.0 12.0 13.0
CFM 60 75 90 105 120 135 150 165 180 195 210 240 270 300
Throw 3.0 3.5 4.5 5.0 6.0 6.5 7.5 8.0 9.0 9.5 10.0 12.0 13.0 15.0
CFM 80 100 120 140 160 175 195 215 235 255 275 315 355 395
Throw 4.5 6.0 7.5 8.5 10.0 11.0 12.0 13.0 14.0 16.0 17.0 19.0 22.0 24.0
CFM 90 115 140 160 185 210 230 255 275 300 325 370 415 460
Throw 5.0 6.5 8.0 9.0 11.0 12.0 13.0 14.0 16.0 17.0 18.0 21.0 23.0 26.0
CFM 100 125 150 180 205 230 255 280 305 330 355 405 455 510
Throw 5.5 6.5 8.0 9.5 12.0 12.0 14.0 15.0 16.0 18.0 19.0 22.0 25.0 27.0
CFM 105 130 155 180 205 230 255 285 310 335 360 410 465 515
Throw 5.5 7.5 8.5 9.5 11.0 12.0 14.0 15.0 17.0 18.0 19.0 22.0 25.0 28.0
CFM 120 150 180 210 240 270 300 330 360 385 415 475 535 595
Throw 6.0 7.5 9.0 10.0 12.0 13.0 15.0 16.0 18.0 19.0 21.0 24.0 27.0 30.0
CFM 125 155 185 220 250 280 310 340 375 405 435 500 560 620
Throw 6.0 7.5 9.0 11.0 12.0 14.0 15.0 17.0 18.0 20.0 21.0 24.0 28.0 30.0
CFM 135 170 205 240 275 310 345 375 410 445 480 550 615 685
Throw 6.5 8.0 9.5 11.0 13.0 14.0 16.0 17.0 19.0 21.0 22.0 26.0 29.0 32.0
CFM 145 185 220 255 290 330 365 400 440 475 510 585 655 730
Throw 6.5 8.5 10.0 11.0 13.0 15.0 16.0 18.0 20.0 21.0 23.0 26.0 29.0 33.0
CFM 170 215 240 300 345 390 430 475 545 560 605 690 775 860
Throw 7.0 9.0 11.0 12.0 14.0 16.0 18.0 20.0 21.0 23.0 25.0 28.0 32.0 36.0
CFM 190 235 280 330 375 425 470 515 565 610 660 750 845 940
Throw 7.5 9.5 11.0 13.0 15.0 17.0 19.0 20.0 22.0 24.0 26.0 30.0 33.0 37.0
CFM 210 260 310 365 415 470 520 570 625 675
730 830 935 1040
Throw 8.0 10.0 12.0 14.0 16.0 18.0 20.0 21.0 24.0 25.0 27.0 31.0 35.0 39.0
CFM 210 265 315 370 420 475 530 580 635 685 740 845 950 1055
Throw 8.0 10.0 12.0 14.0 16.0 18.0 20.0 22.0 24.0 26.0 28.0 32.0 35.0 39.0
CFM 255 320 380 445 510 575 635 700 765 830 890 1020 1145 1275
Throw 8.5 11.0 13.0 15.0 17.0 20.0 22.0 24.0 26.0 28.0 30.0 35.0 39.0 43.0
CFM 290 360 435 505 580 650 725 795 870 940 1010 1155 1300 1445
Throw 9.0 12.0 14.0 16.0 19.0 21.0 23.0 25.0 28.0 30.0 32.0 37.0 42.0 46.0
CFM 320 400 480 560 640 720 800 880 960 1040 1120 1280 1440 1600
Throw 10.0 12.0 15.0 17.0 19.0 22.0 24.0 27.0 29.0 32.0 34.0 39.0 44.0 49.0
CFM 350 435 525 610 700 785 870 960 1045 1135 1220 1400 1570 1745
Throw 10.0 13.0 15.0 18.0 20.0 23.0 25.0 28.0 30.0 33.0 36.0 41.0 48.0 51.0
CFM 435 545 655 765 870 980 1090 1200 1310 1415 1525 1745 1960 2180
Throw 11.0 14.0 17.0 20.0 23.0 25.0 28.0 31.0 34.0 37.0 40.0 45.0 51.0 57.0
CFM 445 555 665 775 890 1000 1110 1220 1330 1445 1555 1775 2000 2220
Throw 11.0 14.0 17.0 20.0 23.0 26.0 29.0 31.0 34.0 37.0 40.0 46.0 52.0 57.0
CFM 530 660 790 925 1055 1190 1320 1450 1585 1715 1850 2110 2375 2640
Throw 14.0 17.0 21.0 24.0 27.0 31.0 34.0 38.0 41.0 45.0 48.0 55.0 62.0 69.0
CFM 535 670 805 940 1070 1205 1340 1475 1610 1740 1875 2145 2410 2680
Throw 13.0 16.0 19.0 22.0 25.0 28.0 31.0 35.0 38.0 41.0 44.0 50.0 57.0 63.0
CFM 555 695 835 975 1110 1250 1390 1530 1670 1805 1945 2225 2500 2780
Throw 13.0 16.0 19.0 22.0 26.0 29.0 32.0 38.0 38.0 42.0 45.0 51.0 58.0 64.0
CFM 670 835 1000 1170 1335 1505 1670 1835 2005 2170 2340 2670 3005 3340
Throw 14.0 18.0 21.0 25.0 28.0 32.0 35.0 39.0 42.0 46.0 49.0 56.0 63.0 70.0
CFM 670 840 1010 1175 1345 1510 1680 1850 2015 2185 2350 2690 3025 3360
Throw 14.0 16.0 21.0 25.0 28.0 32.0 35.0 39.0 42.0 46.0 49.0 56.0 63.0 70.0
CFM 810 1015 1220 1420 1625 1825 2030 2235 2435 2640 2840 3250 3655 4060
Throw 15.0 19.0 23.0 27.0 31.0
35.0 39.0 43.0 46.0 50.0 54.0 62.0 70.0 78.0
Terminal Velocity of 75 FPM
30 x 12
Ak 1.680
36 x 12
Ak 2.030
For sizes not listed and sizing tips see page 76
36 x 8
Ak 1.320
24 x 12
Ak 1.340
30 x 10
Ak 1.390
36 x 10
Ak 1.670
30 x 6
Ak .800
24 x 8
Ak .872
30 x 8
Ak 1.090
24 x 10
Ak 1.110
24 x 5
Ak .520
20 x 6
Ak .528
24 x 6
Ak .637
20 x 8
Ak .723
16 x 5
Ak .343
14 x 6
Ak .365
16 x 6
Ak .431
20 x 5
Ak .470
12 x 5
Ak .254
10 x 6
Ak .257
14 x 5
Ak .291
12 x 6
Ak .311
8 x 4
Ak .127
10 x 4
Ak .162
12 x 4
Ak .197
14 x 4
Ak .231
Face Velocity
Pressure Loss
Deflection G
400 500 600 700 800 900 1000 1100 1200 1300 1400 1600 1800 2000
.010 .016 .022 .031 .040 .050 .062 .075 .090 .105 .122 .160 .202 .249
CFM 45 670 70 85 95 105 120 130 140 155 165 190 210 235
Throw 2.5 3.5 4.0 5.0 5.5 6.0 6.5 7.5 8.0 8.5 9.5 11.0 12.0 13.0
CFM 60 75 90 105 120 135 150 165 180 195 210 240 270 300
Throw 3.0 3.5 4.5 5.0 6.0 6.5 7.5 8.0 9.0 9.5 10.0 12.0 13.0 15.0
CFM 70 90 110 125 145 165 180 200 215 235 255 290 325 360
Throw 3.0 4.0 5.0 5.5 6.5 7.5 8.0 9.0 10.0 11.0 12.0 13.0 15.0 16.0
CFM 85 105 125 150 170 190 210 235 255 275 300 340 380 425
Throw 3.5 4.5 5.0 6.5 7.0 8.0 9.0 10.0 11.0 12.0 13.0 14.0 16.0 18.0
CFM 95 115 140 165 185 210 235 255 280 305 325 375 420 465
Throw 4.0 4.5 5.5 6.5 7.5 8.5 9.5 10.0 11.0 12.0 13.0 15.0 17.0 19.0
CFM 95 120 140 165 190 210 235 260 285 305 330 380 425 470
Throw 4.0 5.0 5.5 6.5 7.5 8.5 9.5 10.0 11.0 12.0 13.0 15.0 17.0 19.0
CFM 110 135 165 190 220 245 275 300 330 355 385 440 495 550
Throw 4.0 5.0 6.0 7.0 8.0 9.0 10.0 11.0 12.0 13.0 14.0 16.0 18.0 20.0
CFM 115 145 170 200 230 255 285 315 345 370 400 460 515 570
Throw 4.0 5.0 6.0 7.0 8.5 9.0 10.0 11.0 12.0 13.0 14.0 17.0 19.0 21.0
CFM 125 160 190 220 250 285 315 345 380 410 440 505 565 630
Throw 4.5 5.5 6.5 7.5 8.5 10.0 11.0 12.0 13.0 14.0 15.0 17.0 19.0 22.0
CFM 135 170 200 235 270 300 335 370 405 435 470 540 605 670
Throw 4.5 5.5 6.5 8.0 9.0 10.0 11.0 12.0 13.0 13.0 16.0 18.0 20.0 22.0
CFM 155 195 230 270 310 345 385 425 465 500 540 620 695 770
Throw 4.5 5.5 6.5 8.0 9.0 10.0 11.0 12.0 14.0 15.0 16.0 18.0 20.0 23.0
CFM 160 200 240 280 320 355 395 435 475 515 555 635 715 795
Throw 5.0 6.0 7.5 8.5 10.0 11.0 12.0 13.0 15.0 16.0 17.0 19.0 22.0 24.0
CFM 190 240 285 335 380 430 480 525 575 620 670
765 860 955
Throw 5.5 6.5 8.0 9.5 11.0 12.0 13.0 15.0 16.0 17.0 19.0 21.0 24.0 27.0
CFM 195 245 290 340 390 435 485 535 585 630 680 780 875 970
Throw 5.5 7.0 8.0 9.5 11.0 12.0 13.0 15.0 16.0 17.0 19.0 22.0 24.0 27.0
CFM 235 295 350 410 470 525 585 645 705 760 820 940 1055 1170
Throw 6.0 7.5 9.0 10.0 12.0 13.0 15.0 16.0 18.0 19.0 21.0 24.0 27.0 29.0
CFM 265 335 400 465 530 600 665 730 800 865 930 1065 1195 1330
Throw 6.5 8.0 9.5 11.0 13.0 14.0 16.0 17.0 19.0 21.0 22.0 25.0 28.0 32.0
CFM 295 370 440 515 590 660 735 810 885 955 1030 1180 1325 1470
Throw 6.5 8.5 10.0 12.0 13.0 15.0 17.0 18.0 20.0 21.0 23.0 27.0 30.0 33.0
CFM 320 400 480 560 640 720 800 880 960 1045 1125 1285 1445 1605
Throw 7.0 8.5 10.0 12.0 14.0 15.0 17.0 19.0 21.0 22.0 24.0 28.0 31.0 35.0
CFM 405 505 605 705 810 910 1010 1110 1210 1315 1415 1615 1820 2020
Throw 8.0 9.5 12.0 14.0 16.0 17.0 19.0 21.0 23.0 25.0 27.0 31.0 35.0 39.0
CFM 410 510 610 715 815 920 1020 1120 1225 1325 1430 1630 1835 2040
Throw 8.0 9.5 12.0 14.0 16.0 18.0 19.0 21.0 23.0 25.0 27.0 31.0 35.0 40.0
CFM 485 605 725 845 970 1090 1210 1330 1450 1575 1695 1935 2180 2420
Throw 8.5 11.0 13.0 15.0 17.0 19.0 21.0 23.0 25.0 28.0 30.0 34.0 38.0 42.0
CFM 490 615 740 860 985 1105 1230 1355 1475 1600 1720 1970 2215 2460
Throw 8.5 11.0 13.0 15.0 17.0 19.0 21.0 24.0 26.0 28.0 30.0 34.0 39.0 43.0
CFM 510 640 770 900 1025 1150 1280 1410 1535 1665 1790 2050 2305 2560
Throw 8.5 11.0 13.0 15.0 18.0 20.0 22.0 24.0 26.0 28.0 31.0 35.0 39.0 44.0
CFM 615 770 925 1080 1230 1385 1540 1695 1850 2000 2155 2465 2770 3080
Throw 9.5 12.0 14.0 17.0 19.0 22.0 24.0 26.0 29.0 31.0 34.0 38.0 43.0 48.0
CFM 620 775 930 1085 1240 1395 1550 1705 1860 2015 2170 2480 2790 3100
Throw 9.5 12.0 14.0 17.0 19.0 22.0 24.0 26.0 29.0 31.0 34.0 38.0 43.0 48.0
CFM 745 930 1115 1300 1490 1675 1860 2045 2230 2420 2605 2975 3350 3720
Throw 11.0 13.0 16.0 18.0 21.0 24.0
26.0 29.0 31.0 34.0 37.0 42.0 47.0 52.0
Terminal Velocity of 75 FPM
36 x 10
Ak 1.540
30 x 12
Ak 1.550
36 x 12
Ak 1.860
For sizes not listed and sizing tips see page 76
24 x 10
Ak 1.020
36 x 8
Ak 1.210
24 x 12
Ak 1.230
30 x 10
Ak 1.280
20 x 8
Ak .665
30 x 6
Ak .736
24 x 8
Ak .802
30 x 8
Ak 1.010
20 x 5
Ak .397
24 x 5
Ak .478
20 x 6
Ak .486
24 x 6
Ak .586
12 x 6
Ak .286
16 x 5
Ak .315
14 x 6
Ak .336
16 x 6
Ak .386
14 x 4
Ak .212
12 x 5
Ak .233
10 x 6
Ak .236
14 x 5
Ak .274
Pressure Loss
8 x 4
Ak .118
10 x 4
Ak .149
12 x 4
Ak .181
Face Velocity
*NC 30 NC 35 NC 40 **NC 45
* less than or equal to ** greater than or equal to
See Alternate Sizing Graph on Page 118.
0
0
10'
10'
10'
20' 30' 40' 50' 60'
0
0
10'
10'
10'
20' 30' 40' 50'
0
0
10'
10'
10'
20' 30'
0
0
10'
10'
10'
20' 30'
55 42 22 0 22 42
0 2222
0 22
22
4242
55
0
0
10'
10'
10'
20' 30' 40' 50' 60'
0
0
10'
10'
10'
20' 30' 40' 50'
0
0
10'
10'
10'
20' 30'
0
0
10'
10'
10'
20' 30'
55 42 22 0 22 42
0 2222 0 22
224242
55
Recommended Noise Criteria and Face Velocity Ranges are on page 75
Engineering Data
81
Engineering Data