Manualshelf

Engineering Bulletin

ManualsBrandsHart & Cooley ManualsFloor Registers & Grilles6" x 8" (Wall Opening Size) Golden Sand Floor Register (210 Series)
1
210 Floor Register (Page 6)
Terminal Velocity of 50 fpm
Face Velocity
300 400 500 600 700 800 900 1000
Pressure Loss
.006 .010 .016 .022 .031 .040 .050 .062
4x10
Ak .20
cfm
Throw
60
8
80
11
100
13
120
16
140
19
160
22
180
24
200
26
4x12 & 6x8
Ak .25
cfm
Throw
75
9
100
12
125
15
150
18
175
21
200
25
225
28
250
31
4x14
Ak .28
cfm
Throw
85
6
110
10
140
15
170
19
195
22
225
25
250
28
280
32
6x10 & 8x8
Ak .32
cfm
Throw
95
10
130
14
160
17
190
21
225
24
255
27
290
31
320
34
6x12
Ak .38
cfm
Throw
115
12
150
15
190
19
230
23
265
26
305
30
340
34
380
38
8x10
Ak .42
cfm
Throw
125
12
170
15
210
18
250
24
295
28
335
32
380
37
420
41
6x14
Ak .44
cfm
Throw
130
13
175
16
220
20
265
24
310
28
350
32
395
36
440
41
6x16
Ak .49
cfm
Throw
145
11
195
16
245
21
295
25
345
30
390
35
440
39
490
44
8x12 & 10x10
Ak .53
cfm
Throw
160
12
210
17
265
21
320
26
370
32
425
37
475
43
530
48
9x12 & 8x14
Ak .60
cfm
Throw
180
14
240
20
300
24
360
29
420
34
480
39
540
44
600
50
10x12
Ak .65
cfm
Throw
195
14
260
18
325
24
390
30
455
35
520
41
585
46
650
51
8x16 & 9x14
Ak .69
cfm
Throw
205
15
275
21
345
27
415
32
485
37
550
42
620
48
690
53
10x14 & 12x12
Ak .78
cfm
Throw
235
14
310
21
390
28
470
34
545
40
625
46
700
51
780
56
10x16
Ak .88
cfm
Throw
265
17
350
23
440
30
530
36
615
41
705
48
790
53
880
60
12x14
Ak .93
cfm
Throw
280
18
370
24
465
30
560
37
650
43
745
50
835
56
930
62
12x16 & 14x14
Ak 1.07
cfm
Throw
320
20
430
26
535
32
640
39
750
46
855
53
965
59
1070
64
12x18 & 14x16
Ak 1.22
cfm
Throw
365
21
490
28
610
34
730
42
855
49
975
56
1100
62
1220
68
14x18 & 16x16
Ak 1.42
cfm
Throw
425
22
570
30
710
37
850
45
995
52
1135
58
1280
63
1420
68
12x24 & 14x20
Ak 1.59
cfm
Throw
475
23
635
31
795
39
955
46
1115
52
1270
59
1430
65
1590
71
265 Return Air Grille (Page 6)
*Average Face Velocity
400
500
600
700
800
900
1000
4x12
Ak .295
cfm
Pt
150
.017
175
.024
205
.033
235
.043
265
.054
295
.065
4x14
Ak .335
cfm
Pt
170
.016
200
.023
235
.032
270
.042
300
.052
335
.064
6x10
Ak .37
cfm
Pt
185
.016
220
.022
260
.031
295
.041
335
.051
370
.063
6x12
Ak .445
cfm
Pt
225
.015
265
.021
310
.030
355
.039
400
.049
445
.060
8x10
Ak .49
cfm
Pt
245
.015
295
.021
345
.029
390
.038
440
.047
490
.059
6x14
Ak .51
cfm
Pt
255
.015
305
.020
355
.029
410
.038
460
.047
510
.058
8x12
Ak .585
cfm
Pt
295
.014
350
.020
410
.028
470
.036
525
.046
585
.057
8x14
Ak .68
cfm
Pt
340
.014
410
.019
475
.027
545
.035
610
.044
680
.055
10x12
Ak .72
cfm
Pt
360
.014
430
.019
505
.027
575
.035
650
.043
720
.054
12x12 & 6x24
Ak .85
cfm
Pt
425
.013
510
.019
595
.026
680
.033
765
.042
850
.053
6x30
Ak 1.03
cfm
Pt
515
.012
620
.018
720
.024
825
.032
925
.040
1030
.049
8x24
Ak 1.11
cfm
Pt
555
.012
665
.018
775
.024
890
.031
1000
.039
1110
.048
14x14
Ak 1.15
cfm
Pt
575
.012
690
.018
805
.024
920
.031
1035
.039
1150
.048
8x30
Ak 1.35
cfm
Pt
675
.012
810
.017
945
.023
1080
.030
1215
.037
1350
.046
14x20
Ak 1.58
cfm
Pt
790
.011
950
.016
1105
.022
1265
.029
1420
.036
1580
.045
12x24
Ak 1.64
cfm
Pt
820
.011
985
.016
1150
.022
1310
.029
1475
.036
1690
.044
10x30
Ak 1.68
cfm
Pt
840
.011
1010
.016
1175
.022
1345
.029
1510
.036
1680
.044
18x18
Ak 1.80
cfm
Pt
900
.011
1080
.015
1260
.021
1440
.028
1620
.035
1800
.043
14x24
Ak 1.87
cfm
Pt
935
.011
1120
.015
1310
.021
1495
.028
1685
.035
1870
.043
12x30
Ak 2.00
cfm
Pt
1000
.011
1200
.015
1400
.021
1600
.027
1800
.034
2000
.042
14x30
Ak 2.35
cfm
Pt
1175
.010
1410
.015
1645
.020
1880
.026
2115
.033
2350
.040
24x24
Ak 3.10
cfm
Pt
1550
.010
1860
.014
2170
.019
2480
.024
2790
.031
3100
.038
30x30
Ak 4.70
cfm
Pt
2350
.009
2820
.012
3290
.017
3760
.022
4230
.028
4700
.034
* Velocity measured 1” from face.
Face Velocity 300 400 500 600 700 800 900 1000
Pressure Loss
.006 .010 .016 .022 .031
.040
.050
.062
2 1/4 x10
Ak .09
cfm
Throw
Spread
cfm
Throw
Spread
cfm
Throw
Spread
cfm
Throw
Spread
cfm
Throw
Spread
25
2
35
2.5
45
3
55
4
60
4.5
70
5
80
6
90
3 4 5 6.5 7.5 9 10 11
6.5
2 1/4 x12
Ak .11
35
3
2
45
4.5
3
55
6
3.5
65
7
4
75
8.5
5
90
9.5
6
100
11
6.5
110
12
7
2 1/4 x14
Ak .13
40
3.5
2.5
50
5
3
65
7
4
80
8
4.5
90
9.5
5.5
105
10.5
6.5
115
12
7
130
13
8
4x10
Ak .17
50
4
3
70
6
3.5
85
7.5
4.5
100
9
5.5
120
11
6.5
135
12
7
155
13.5
8
170
15.5
9
4x12
Ak .21
65
5
3
85
7
4
105
8.5
5
125
10
6
145
12
7
170
13.5
8
190
15.5
9
210
17
10
4x14
Ak .25
cfm
Spread
Throw
75
5.5
3.5
100
7.5
4.5
125
9.5
5.5
150
11
6.5
175
13
7.5
200
15
9
225
17
10
250
18.5
11
6x10
Ak .27
cfm
Spread
Throw
80
6
3.5
110
8
4.5
135
10
6
160
11.5
7
190
13.5
8
215
15.5
9
245
17.5
10.5
270
19.5
11.5
6x12
Ak .33
cfm
Spread
Throw
100
6.5
4
130
8.5
5
165
11
6.5
200
13
7.5
230
15
9
265
17
10
295
19.5
11.5
330
21.5
12.5
6x14
Ak .39
cfm
Spread
Throw
115
7.5
45
155
9.5
55
195
12
7
235
14
85
275
17
10
310
19
11
350
21.5
12 5
390
23.5
14
Terminal velocity of 50 fpm.
411 Floor Diffuser (Page 6)
Engineering Data
Engineering Data
104

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