2022 | INDUSTRIAL VENTILATION
SD
Silencers for round ducts
Use
For attenuation of noise produced by a ventilation system and spreaded along ventilation ductworks.
Used jointly with sound-insulated fans in premises with high requirements to noise level produced by ventilation equipment.
Compatible with ∅ 100 mm up to 315 mm round air ducts.
Design
Galvanized steel case is filled with non-flammable sound-absorbing material with protecting covering against fiber blowing.
Airtight connection with air ducts due to connecting flanges with rubber seals.
A great variety of standard ranges with several length options.
Mounting
Fixing to round ducts with clamps.
Any mounting position.
For better sound absorption install the silencers in series.
Designation key
Series
SD
Connected air duct diameter [mm]
100; 125; 150; 160; 200; 250; 315; 355; 400
Overall dimensions
[mm]
Model
SD 100/600
SD 100/900
SD 100/1200
SD 125/600
SD 125/900
SD 125/1200
SD 150/600
SD 150/900
SD 150/1200
SD 160/600
SD 160/900
SD 160/1200
SD 200/600
SD 200/900
SD 200/1200
SD 250/600
SD 250/900
SD 250/1200
SD 315/600
SD 315/900
SD 315/1200
∅ D
199
199
199
249
149
159
159
159
249
249
314
314
314
124
124
149
149
99
99
99
124
∅ D1
300
300
300
350
250
260
260
260
350
350
415
415
415
225
225
250
250
200
200
200
225
L
1200
600
900
1200
600
900
1200
600
900
1200
600
900
1200
600
900
1200
600
900
1200
600
900
L1
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
50
Length [mm]
/ 600; 900; 1200
Weight [kg]
3.5
5.3
7.1
4.2
5.6
3.1
4.6
6.2
6.2
8.3
4.7
7.1
9.4
4.1
5.4
2.8
4.2
2.2
3.2
4.3
2.7
Model
SD 355/600
SD 355/900
SD 355/1200
SD 400/900
SD 400/1200
∅ D
353
353
353
398
398
∅ D1
450
450
450
500
500
L
600
900
1200
900
1200
L1
50
50
50
50
50
Weight [kg]
5,5
8,2
11,0
9,5
12,7
340 blaubergventilatoren.de
blaubergventilatoren.de
Noise level reduction, dB (octave-frequency band [Hz])
63
4
4
2
3
2
4
4
2
2
3
4
4
6
3
4
5
6
9
4
4
7
10
2
3
4
4
Model
SD 100/600
SD 100/900
SD 100/1200
SD 125/600
SD 125/900
SD 125/1200
SD 150/600
SD 150/900
SD 150/1200
SD 160/600
SD 160/900
SD 160/1200
SD 200/600
SD 200/900
SD 200/1200
SD 250/600
SD 250/900
SD 250/1200
SD 315/600
SD 315/900
SD 315/1200
SD 355/600
SD 355/900
SD 355/1200
SD 400/900
SD 400/1200
125
4
7
10
5
8
4
5
10
4
5
9
9
8
10
11
5
7
9
11
15
4
5
5
6
10
14
250
6
11
14
6
14
8
10
14
8
9
12
16
10
15
19
6
11
16
19
22
5
8
7
8
18
21
500
10
20
23
11
25
17
19
24
22
27
16
18
20
23
28
15
22
22
25
27
16
17
10
17
23
25
1000
27
39
40
22
43
33
37
42
43
48
32
36
34
44
50
28
36
17
19
22
32
34
17
30
17
20
4000
7
8
13
7
18
7
13
19
16
21
7
13
13
16
20
10
14
14
17
20
12
14
6
10
16
19
2000
13
23
26
12
30
11
25
30
22
27
11
25
30
30
34
17
18
13
16
18
20
22
9
14
15
17
50
40
30
20
10
0
0
1
2
3
4
500
5
1000
6
5
6
7
3
4
1
2
SD (L=600 mm)
SD 100/600
SD 125/600
SD 150/600
SD 160/600
SD 200/600
SD 250/600
SD 315/600
7
1500 2000 2500
Air flow [m³/h]
40
30
20
10
0
0
80
70
60
50
1
2
500
3
4
5
1000
6
SD (L=900 mm)
6
5
7
3
4
1
2
SD 100/900
SD 125/900
SD 150/900
SD 160/900
SD 200/900
SD 250/900
SD 315/900
7
1500 2000 2500
Air flow [m³/h]
60
50
40
30
80
70
20
10
0
0
1
2
500
3
4
5
1000
SD (L=1200 mm)
6 7
1500
6
5
7
4
3
1
2
SD 100/1200
SD 125/1200
SD 150/1200
SD 160/1200
SD 200/1200
SD 250/1200
SD 315/1200
2000 2500
Air flow [m³/h]
8000
7
7
12
6
19
7
15
20
12
17
7
14
14
15
18
9
10
13
18
22
5
8
10
12
20
25
INDUSTRIAL VENTILATION | 2022 341
