Manualshelf

Engineering Bulletin

ManualsBrandsHart & Cooley ManualsFloor Registers & Grilles14" x 2" (Wall Opening Size) Golden Sand Toe-Space Grille (420 Series)
1
Engineering Data
105
420/421 Floor Diffuser (Page 7)
Face Velocity 300 400 500 600 700 800 900 1000
Pressure Loss
.006 .010 .016 .022 .031
.040
.050
.062
2x10
Ak .085
35
4
3
45
4.5
5
50
6
5
60
7
6
70
8
7
75
9
8
85
10
9
2x12
Ak .100
30
3.5
3
40
4.5
4
50
5.5
4.5
60
7
5.5
70
8
6.5
80
9
7
90
10
8
100
11
9
2x14
Ak .115
35
3.5
3.5
45
4.5
4
60
6
5
70
8
7
80
8
7
90
9.5
8
105
10.5
9
115
12
10
4x8
Ak .13
40
4
3
50
4.5
4
65
6
5
80
7.5
6.5
90
8.5
7.5
105
10
8.5
115
11
9.5
130
13
11
4X10
Ak .170
50
4
4.5
70
6
5
85
8
6.5
100
10
7.5
120
11
9
135
12.5
10
155
14
11.5
170
15.5
13
4x12
Ak .195
cfm
Spread
Throw
cfm
Spread
Throw
cfm
Spread
Throw
cfm
Spread
Throw
cfm
Spread
Throw
cfm
Spread
Throw
60
5
4
80
6.5
5.5
100
8
7
120
9.5
8
140
11.5
9.5
160
13
11
175
14.5
12
195
16
13
4x14
Ak .230
cfm
Spread
Throw
70
5.5
4.5
90
7
5.5
115
8.5
7
140
10
8.5
160
12
10
185
13.5
11.5
205
15.5
12.5
230
17
14
6x10
Ak .24
cfm
Spread
Throw
70
5.5
4
95
7
5.5
120
8
7
145
10
8.5
170
12
10
190
14
11
215
15
12.5
240
17
14
6x12
Ak .285
cfm
Spread
Throw
85
6
4.5
115
7.5
6
140
9
7.5
170
11
9
200
13
10
230
15
12
255
17
14
285
19
16
6x14
Ak .33
cfm
Spread
Throw
100
6.5
4.5
130
8
6.5
165
9
8
200
12
9.5
230
14
11
265
16.5
13
300
18
15
330
20
17
Terminal velocity of 50 fpm.
531 Royalaire
®
Floor Register (Page 7)

Summary of content (1 pages)