Engineering Bulletin

A618 Adjustable Fin Register (Page 16)
Deflection A
Face Velocity
300
400
500
600
700
800
900
1000
1100
1200
Pressure Loss
.006
.010
.016
.022
.031
.040
.050
.062
.075
.090
8x4
Ak .156
cfm
Throw
45
5
60
6.5
80
8.5
95
10
110
12
125
13
140
15
170
18
185
19
10x4
Ak .198
cfm
Throw
60
6
80
7.5
100
9.5
120
12
140
13
160
15
180
17
220
20
240
22
12x4
Ak .240
cfm
Throw
70
6
95
8
120
10
145
12
170
14
190
16
215
18
265
22
290
25
10x6
Ak .313
cfm
Throw
95
7
125
9
155
12
190
14
220
16
250
19
280
21
345
26
375
28
12x6
Ak .379
cfm
Throw
115
8
150
10
190
13
225
15
265
18
305
21
340
23
415
28
455
31
10x8
Ak .425
cfm
Throw
130
8
170
11
215
14
255
16
300
19
340
21
385
24
470
30
510
32
14x6
Ak .446
cfm
Throw
135
8
180
11
225
14
270
17
310
19
355
22
400
25
490
30
545
33
12x8
Ak .530
cfm
Throw
160
9
200
11
265
15
320
18
370
21
425
24
475
27
585
33
635
36
14x8
Ak .620
cfm
Throw
185
10
250
13
310
16
370
20
435
23
495
26
560
30
680
36
745
39
Terminal Velocity of 75 fpm
Engineering Data
109
A618 Adjustable Fin Register (Page 16)
Deflection C
Face Velocity
300
400
500
600
700
800
900
1000
1100
1200
Pressure Loss
.006
.010
.016
.022
.031
.040
.050
.062
.075
.090
8x4
Ak .141
cfm
Throw
40
3.5
55
5
70
6.5
85
7.5
100
9
115
10
125
11
155
14
170
15
10x4
Ak .178
cfm
Throw
55
4
70
5.5
90
7
105
8.5
125
10
140
11
160
13
195
16
215
17
12x4
Ak .216
cfm
Throw
65
4.5
85
6
110
8
130
9.5
150
11
175
13
195
14
240
18
260
19
10x6
Ak .282
cfm
Throw
85
5.5
115
7.5
140
9
170
11
195
12
225
14
255
16
310
20
340
22
12x6
Ak .342
cfm
Throw
105
6
135
8
170
10
205
12
240
14
275
16
310
18
375
22
410
24
10x8
Ak .390
cfm
Throw
115
6
155
8
195
11
235
13
275
15
310
17
350
19
430
23
470
26
14x6
Ak .412
cfm
Throw
125
7
165
9
205
11
245
13
290
16
330
18
370
20
455
24
495
27
12x8
Ak .470
cfm
Throw
140
7
190
9
235
12
280
14
330
16
375
19
425
21
515
25
565
28
14x8
Ak .550
cfm
Throw
165
8
220
10
275
13
330
15
385
18
440
20
495
23
605
28
660
30
Terminal Velocity of 75 fpm
A618 Adjustable Fin Register (Page 16)
Deflection E
Face Velocity
300
400
500
600
700
800
900
1000
1100
1200
Pressure Loss
.006
.010
.016
.022
.031
.040
.050
.062
.075
.090
8x4
Ak .127
cfm
Throw
40
3
50
4
65
5
75
5.5
90
7
100
7.5
115
8.5
140
11
150
11.5
10x4
Ak .162
cfm
Throw
50
3
65
4.5
80
5.5
95
6.5
115
7.5
130
8.5
145
9.5
180
12
195
13
12x4
Ak .197
cfm
Throw
60
4
80
4.5
100
6
120
7.5
140
8.5
160
10
175
11
215
13
235
14
10x6
Ak .257
cfm
Throw
75
4
105
5.5
130
7.5
155
8.5
180
9.5
205
11
230
12
285
15
310
17
12x6
Ak .311
cfm
Throw
95
4.5
125
6
155
7.5
185
9
220
11
250
12
280
14
340
17
375
18
10x8
Ak .350
cfm
Throw
105
5
140
6
175
8
210
10
245
11
280
13
315
14
385
18
420
19
14x6
Ak .365
cfm
Throw
110
5.5
145
6.5
185
8.5
220
10
255
11
290
13
330
15
400
18
440
20
12x8
Ak .435
cfm
Throw
130
5
175
7
220
9
260
11
305
13
350
15
390
16
480
20
520
22
14x8
Ak .510
cfm
Throw
155
6
205
8
255
10
305
12
355
14
410
16
460
18
560
22
610
23
Terminal Velocity of 75 fpm
A618 Adjustable Fin Register (Page 16)
Deflection G
Face Velocity
300
400
500
600
700
800
900
1000
1100
1200
Pressure Loss
.006
.010
.016
.022
.031
.040
.050
.062
.075
.090
8x4
Ak .118
cfm
Throw
35
2
45
2.5
60
3.5
70
4
85
5
95
5.5
105
6
130
7.5
140
8
10x4
Ak .149
cfm
Throw
45
2
60
3
75
3.5
90
4.5
105
5
120
6
135
6.5
165
8
180
9
12x4
Ak .181
cfm
Throw
55
2.5
70
3
90
4
110
5
125
5.5
145
6.5
165
7.5
200
9
215
10
10x6
Ak .236
cfm
Throw
70
3
95
4
120
5
140
5.5
165
6.5
190
7.5
210
8.5
260
10
285
11
12x6
Ak .286
cfm
Throw
85
3
115
4
145
5
170
6
200
7
230
8.5
255
9
315
11
345
12
10x8
Ak .320
cfm
Throw
95
3
130
4.5
160
5.5
190
6.5
225
7.5
255
8.5
290
10
350
12
385
13
14x6
Ak .336
cfm
Throw
100
3.5
135
4.5
170
5.5
200
6.5
235
8
270
9
300
10
370
12
405
13
12x8
Ak .395
cfm
Throw
120
3.5
160
5
200
6
235
7
275
8
315
10
355
11
435
13
475
15
14x8
Ak .460
cfm
Throw
140
4
185
5.5
230
6.5
275
8
320
9
370
10.5
415
11.5
505
14.5
550
15.5
Terminal Velocity of 75 fpm
621 Sidewall/Ceiling Register
4-Way Deflection (Page 17)
Face Velocity
300
400
500
600
700
800
900
1000
Pressure Loss
.006
.010
.016
.022
.031
.040
.050
.062
6x6
Ak .14
cfm
Throw L/S
40
4.5/3.5
55
6.5/5
70
8/6.5
85
10/8
100
11.5/9.5
110
12.5/10.
5
125
14.5/12
140
16/13.5
8x8
Ak .28
cfm
Throw L/S
85
6.5/5.5
110
9/7.5
140
11/9.5
170
13.5/11.5
195
15.5/13
225
18/15
250
20/16.5
280
22.5/18.5
10x10
Ak .44
cfm
Throw L/S
130
8/6.5
175
11/9
220
14/11.5
265
17/14
310
20/16.5
350
22/18
395
25/21
440
28/23
12x12
Ak .68
cfm
Throw L/S
205
10.5/8.5
270
14/11
340
17.5/14
410
21/17
475
24.5/19.5
545
28/22.5
610
30/25
680
33/28
14x14
Ak .93
cfm
Throw L/S
280
11/9.5
370
14.5/12.5
465
18.5/16
560
22/19
650
26.5/22
745
30/25.5
835
32.5/28
930
36/31
16x16
Ak 1.28
cfm
Throw L/S
385
13/11
510
17.5/14
640
22/18
770
26.5/21.5
895
30/25
1025
35/28
1150
39/32
1280
43/36
Terminal Velocity of 75 fpm
SS
L
L
631 Register (Page 17)
Face Velocity
300
400
500
600
700
800
900
1000
Pressure Loss
.006
.010
.016
.022
.031
.040
.050
.062
10x6
Ak .18
cfm
Throw L/S
85
4.0/8.0
110
5.5/10
140
7.0/13
170
8.5/16
195
9.5/19
225
11/21
250
13/24
280
15/26
12x6
Ak .34
cfm
Throw L/S
100
4.0/8.0
135
5.0/10
170
6.0/13
205
7.5/16
240
9.0/20
275
10/22
305
11.5/24
340
13/28
10x8
Ak .38
cfm
Throw L/S
115
3.5/9.5
150
5.0/13
190
6.0/16
230
7.0/18
265
8.0/21
305
9.0/24
340
10.5/29
380
11.5/32
14x6
Ak .40
cfm
Throw L/S
120
4.0/10
160
5.0/12
200
6.5/16
240
8.0/19
280
9.0/22
320
10/24
360
11/27
400
12.5/30
12x8
Ak .47
cfm
Throw L/S
140
4.5/10
190
6.0/13
235
7.5/15
280
9.0/18
330
10/21
375
11.5/25
425
13/28
470
14.5/31
14x8
Ak .55
cfm
Throw L/S
165
4.0/10
220
5.5/13.5
275
7.5/18
330
8.5/22
385
10/25
440
11.5/29
495
13/33
550
15/36
Terminal Velocity of 50 fpm
SS
L
See Alternative sizing graph on page XXX

Summary of content (1 pages)