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Manufactured in one piece from aluminium sheet
No Joins; No gaps; No welds
Easily removable core for cleaning or servicing
Negligible resistance to airflow
Available as Supply and Return diffuser
Less Dirt accumulation
Standard RAL 9010 Finish
Std.Size mm
A mm
B mm
C mm
D mm
E mm
F mm
G mm
150x150
135
150
295
42
140
83
32
225x225
210
225
370
42
215
83
32
300x300
285
300
445
42
290
83
32
375x375
360
375
520
42
365
83
32
450x450
435
450
595
42
440
83
32
Technical Data
Std. Size
mm
A
(m2)
Vn(m/s)
Vs(m/s)
P(Pa)
1.02
2.78
3.40
1.27
3.48
5.20
1.52
4.18
7.30
1.78
5.00
10.5
2.03
5.56
13.6
2.54
6.96
21.0
3.05
8.35
31.0
3.57
9.74
42.0
4.06
11.13
53.6
150x150
0.0009
Q (l/s)
Lt (m)
NR
24
1.2
<15
29
1.8
<15
35
2.1
<15
41
2.4
<15
47
2.7
<15
59
3.3
19
71
3.6
24
83
3.9
29
94
4.2
33
225x225
0.020
Q (l/s)
Lt (m)
NR
53
2.1
<15
66
2.7
<15
80
3.3
<15
93
3.6
<15
106
4.2
16
133
4.8
22
159
5.4
28
186
6.0
33
213
6.3
37
300x300
0.033
Q (l/s)
Lt (m)
NR
94
2.7
<15
118
3.3
<15
142
3.9
<15
165
4.8
16
189
5.4
19
236
6.3
25
283
7.2
32
330
7.8
36
378
8.1
40
375x375
0.054
Q (l/s)
Lt (m)
NR
148
3.6
<15
184
4.2
<15
221
5.1
17
258
5.7
23
295
6.9
28
368
8.1
35
443
9.0
41
516
9.6
45
590
10.2
49
450x450
0.073
Q (l/s)
Lt (m)
NR
212
4.2
<15
265
5.1
18
319
6.0
22
372
6.9
27
425
8.1
34
531
9.6
39
637
10.5
44
743
11.4
48
849
16.2
53
CONDITIONS
1) Supply 2)-Damper is fully open
2) Lt is based on Vt=0.25m/sec
3) Room attenuation is neglected
SYMBOLS
Q : Supply/Exhaust airflow rate in l/s
Vn : Neck Velocity m/sec
Vt : Terminal Velocity in m/sec
A : Effective Area in m2
NR :Noise Level index according to ISO Definition
Vs : Supply air velocity m/sec