Submittal Sheet

Engineering Data
111
661 & A661 2-Way Supply Register (Page 19)
Face Velocity
300
400
500
600
700
800
900
1000
Pressure Loss
.006
.010
.016
.022
.031
.040
.050
.062
6x4
Ak .080
cfm
Throw
25
4
30
4.5
40
6
50
7
55
8.5
65
10
70
11
80
12.5
8x4
Ak .110
cfm
Throw
35
4.5
45
5.5
55
7
65
8.5
75
10
90
11.5
100
13
110
14.5
10x4 & 8x5
Ak .145
cfm
Throw
45
5
60
6.5
75
8
85
9.5
100
11.5
115
13
130
14.5
145
16
12x4 & 8x6
Ak .180
cfm
Throw
55
5.5
70
7
90
9
110
10.5
125
12.5
145
14
160
16
180
18
14x4
Ak .215
cfm
Throw
65
6
85
7.5
110
9.5
130
11.5
150
13.5
170
15.5
195
17
215
19
10x6 & 12x5
Ak .245
cfm
Throw
75
6
100
8
125
10
145
12
170
14
195
16
220
18
245
20
12x6 & 14x5
Ak .295
cfm
Throw
90
6.5
120
8.5
150
11
175
13
205
15.5
235
17.5
265
19.5
295
22
10x8
Ak .345
cfm
Throw
105
7
140
9
175
11.5
205
13.5
240
16.5
275
18.5
310
21
345
23.5
14x6
Ak .360
cfm
Throw
110
7
145
9.5
180
12
215
14
250
16.5
290
19
325
21.5
360
24
16x6 & 12x8
Ak .425
cfm
Throw
130
7.5
170
10
215
12.5
255
15
300
18
340
20.5
385
23
425
25.5
14x8
Ak .515
cfm
Throw
155
8
205
10.5
260
14
310
16
360
19.5
410
22
465
25
515
28
20x6
Ak .550
cfm
Throw
165
8.5
220
11
275
14.5
330
17
385
20
440
23
495
25.5
550
29
16x8
Ak .600
cfm
Throw
180
8.5
240
11
300
14.5
360
17
420
20
480
23
540
25.5
600
29
24x6 & 18x8
Ak .680
cfm
Throw
205
9.5
270
12
340
15.5
410
18.5
475
22
545
25
610
28
680
31.5
20x8
Ak .760
cfm
Throw
230
10
305
13
380
16.5
455
19
530
23
610
26
685
28.5
760
33
30x6
Ak .880
cfm
Throw
265
10.5
350
14
440
17.5
530
20.5
615
24.5
705
28
790
31.5
880
35
24x8
Ak .980
cfm
Throw
295
11
390
14
490
18
590
21.5
685
25.5
785
29
880
33
980
37
30x8
Ak 1.25
cfm
Throw
375
12
500
16
625
20
750
24
875
28.5
1000
32
1125
37
1250
41
Terminal velocity of 75 fpm
672/674 Return Air Grille (Page 20, 11)
673 Return Air Filter Grille (Page 20)
300 400 500 600 700
6
x 4 CFM 34 45 56 68 79
Ak 0.11 Ps. 0.020 0.035 0.054 0.079 0.108
6
x 6 CFM 50 67 84 101 117
Ak 0.17 Ps. 0.019 0.035 0.054 0.079 0.107
8
x 4 CFM 45 60 75 90 105
Ak 0.15 Ps. 0.019 0.035 0.054 0.079 0.108
8
x 6 CFM 67 89 111 134 156
Ak 0.22 Ps. 0.019 0.035 0.054 0.079 0.107
8
x 8 CFM 89 118 148 178 207
Ak 0.30 Ps. 0.019 0.035 0.054 0.078 0.107
10
x 4 CFM 56 74 93 112 130
Ak 0.19 Ps. 0.019 0.035 0.054 0.079 0.107
10
x 6 CFM 83 111 139 167 194
Ak 0.28 Ps. 0.019 0.035 0.054 0.078 0.107
10
x 8 CFM 111 147 184 221 258
Ak 0.37 Ps. 0.019 0.034 0.054 0.078 0.106
10
x 10 CFM 138 184 230 276 322
Ak 0.46 Ps. 0.019 0.034 0.054 0.078 0.106
12
x 6 CFM 100 133 166 199 233
Ak 0.33 Ps. 0.019 0.034 0.054 0.078 0.106
12
x 8 CFM 132 177 221 265 309
Ak 0.44 Ps. 0.019 0.034 0.054 0.078 0.106
12
x 10 CFM 165 220 275 330 385
Ak 0.55 Ps. 0.019 0.034 0.053 0.077 0.105
12
x 12 CFM 197 263 329 395 461
Ak 0.66 Ps. 0.019 0.034 0.053 0.077 0.104
12
x 18 CFM 294 392 491 589 687
Ak 0.98 Ps. 0.019 0.034 0.053 0.075 0.102
14
x 6 CFM 116 155 193 232 271
Ak 0.39 Ps. 0.019 0.034 0.054 0.078 0.106
14
x 8 CFM 154 205 257 308 360
Ak 0.51 Ps. 0.019 0.034 0.053 0.077 0.105
14
x 10 CFM 192 256 320 384 448
Ak 0.64 Ps. 0.019 0.034 0.053 0.077 0.104
14
x 12 CFM 230 306 383 460 536
Ak 0.77 Ps. 0.019 0.034 0.053 0.076 0.103
14
x 14 CFM 267 357 446 535 624
Ak 0.89 Ps. 0.019 0.034 0.053 0.075 0.103
14
x 18 CFM 343 457 571 685 800
Ak 1.14 Ps. 0.019 0.033 0.052 0.074 0.101
Face velocity
300 400 500 600 700
16
x 6 CFM 132 177 221 265 309
Ak 0.44 Ps. 0.019 0.034 0.054 0.078 0.106
16
x 8 CFM 176 234 293 352 410
Ak 0.59 Ps. 0.019 0.034 0.053 0.077 0.105
16
x 10 CFM 219 292 365 438 511
Ak 0.73 Ps. 0.019 0.034 0.053 0.076 0.104
16
x 12 CFM 262 349 437 524 612
Ak 0.87 Ps. 0.019 0.034 0.053 0.076 0.103
16
x 14 CFM 305 407 509 610 712
Ak 1.02 Ps. 0.019 0.034 0.052 0.075 0.102
16
x 16 CFM 348 464 580 696 812
Ak 1.16 Ps. 0.019 0.033 0.052 0.074 0.101
16
x 24 CFM 519 692 865 1038 1211
Ak 1.73 Ps. 0.018 0.033 0.051 0.071 0.097
16
x 25 CFM 540 720 900 1081 1261
Ak 1.80 Ps. 0.018 0.033 0.051 0.071 0.097
18
x 6 CFM 149 198 248 297 347
Ak 0.50 Ps. 0.019 0.034 0.054 0.077 0.105
18
x 18 CFM 439 585 732 878 1024
Ak 1.46 Ps. 0.019 0.033 0.052 0.073 0.099
18
x 24 CFM 583 777 971 1166 1360
Ak 1.94 Ps. 0.018 0.032 0.051 0.070 0.096
20
x 6 CFM 165 220 275 330 385
Ak 0.55 Ps. 0.019 0.034 0.053 0.077 0.105
20
x 10 CFM 273 364 455 546 637
Ak 0.91 Ps. 0.019 0.034 0.053 0.075 0.103
20
x 12 CFM 327 435 544 653 762
Ak 1.09 Ps. 0.019 0.033 0.052 0.074 0.101
20
x 14 CFM 380 507 634 760 887
Ak 1.27 Ps. 0.019 0.033 0.052 0.074 0.100
20
x 20 CFM 540 720 900 1081 1261
Ak 1.80 Ps. 0.018 0.033 0.051 0.071 0.097
20
x 24 CFM 647 862 1078 1293 1509
Ak 2.16 Ps. 0.018 0.032 0.050 0.069 0.094
20
x 25 CFM 673 898 1122 1346 1571
Ak 2.24 Ps. 0.018 0.032 0.050 0.069 0.094
24
x 4 CFM 132 177 221 265 309
Ak 0.44 Ps. 0.019 0.034 0.054 0.078 0.106
24
x 6 CFM 197 263 329 395 461
Ak 0.66 Ps. 0.019 0.034 0.053 0.077 0.104
24
x 8 CFM 262 349 437 524 612
Ak 0.87 Ps. 0.019 0.034 0.053 0.076 0.103
24
x 10 CFM 327 435 544 653 762
Ak 1.09 Ps. 0.019 0.033 0.052 0.074 0.101
24
x 12 CFM 391 521 651 782 912
Ak 1.30 Ps. 0.019 0.033 0.052 0.073 0.100
24
x 14 CFM 455 607 758 910 1062
Ak 1.52 Ps. 0.019 0.033 0.051 0.072 0.098
24
x 22 CFM 710 947 1184 1421 1657
Ak 2.37 Ps. 0.018 0.032 0.050 0.068 0.093
24
x 24 CFM 774 1032 1290 1548 1806
Ak 2.58 Ps. 0.018 0.032 0.049 0.067 0.091
30
x 4 CFM 165 220 275 330 385
Ak 0.55 Ps. 0.019 0.034 0.053 0.077 0.105
30
x 6 CFM 246 328 410 492 574
Ak 0.82 Ps. 0.019 0.034 0.053 0.076 0.103
30
x 8 CFM 327 435 544 653 762
Ak 1.09 Ps. 0.019 0.033 0.052 0.074 0.101
30
x 10 CFM 407 543 678 814 949
Ak 1.36 Ps. 0.019 0.033 0.052 0.073 0.100
30
x 12 CFM 487 649 812 974 1136
Ak 1.62 Ps. 0.018 0.033 0.051 0.072 0.098
30
x 14 CFM 567 756 945 1134 1323
Ak 1.89 Ps. 0.018 0.032 0.051 0.071 0.096
30
x 18 CFM 726 968 1210 1452 1694
Ak 2.42 Ps. 0.018 0.032 0.050 0.068 0.092
30
x 20 CFM 806 1074 1343 1611 1880
Ak 2.69 Ps. 0.018 0.031 0.049 0.067 0.091
30
x 24 CFM 964 1286 1607 1928 2250
Ak 3.21 Ps. 0.017 0.031 0.048 0.064 0.087
30
x 24 CFM 964 1286 1607 1928 2250
Ak 3.21 Ps. 0.017 0.031 0.048 0.064 0.087
30
x 30 CFM 1201 1602 2002 2403 2803
Ak 4.00 Ps. 0.017 0.030 0.046 0.060 0.082
36
x 6 CFM 294 392 491 589 687
Ak 0.98 Ps. 0.019 0.034 0.053 0.075 0.102
36
x 8 CFM 391 521 651 782 912
Ak 1.30 Ps. 0.019 0.033 0.052 0.073 0.100
Face velocity
*Tested without filters. Typical disposable 1-inch capacity is 2 cfm per square inch
of gross filter area. Recommended velocity is 300-400 fpm. Velocities higher than
500 fpm will decrease filter performance. Increase flow resistance, and possibly
blow off agglomerates of collected dirt. Velocity measured 1” from face.
*
*