2021 | AIR HANDLING UNITS
SDF
Flexible silencers for round ducts
Features
For attenuation of noise produced by a ventilation system and spreaded along ventilation ductworks.
Used jointly with soundinsulated 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
Consists of outer and inner flexible spiral seam air ducts made of aluminium alloy and filled with nonflammable soundabsorbing material.
Internal surface is perforated and covered with protection coating to prevent fiber blowing-out.
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 Seriess.
Fixing on both ends and in the middle to prevent sagging.
Designation key
Series
SDF
Connected air duct diameter [mm]
100; 125; 150; 160; 200; 250; 315
Length
/ 600; 900; 1200
Overall dimensions
[mm]
Model
SDF 100/600
SDF 100/900
SDF 100/2000
SDF 125/600
SDF 125/900
SDF 125/2000
SDF 150/600
SDF 150/900
SDF 150/2000
SDF 160/600
SDF 160/900
SDF 160/2000
SDF 200/600
SDF 200/900
SDF 200/2000
SDF 250/600
SDF 250/900
SDF 250/2000
SDF 315/600
SDF 315/900
SDF 315/2000
D
124
124
149
149
99
99
99
124
159
199
199
149
159
159
199
249
249
249
314
314
314
D1
270
270
270
270
220
220
220
270
270
320
320
270
270
270
320
370
370
370
420
420
420
222
L
900
2000
600
900
600
900
2000
600
2000
600
900
2000
600
900
2000
600
900
2000
600
900
2000
L1
55
55
55
55
55
55
55
55
55
55
55
55
55
55
55
55
55
55
55
55
55
Weight [kg]
3.0
6.6
2.1
3.1
1.6
2.4
5.2
2.0
7.0
2.6
3.9
6.8
2.1
3.2
8.6
3.0
4.5
10.1
3.4
5.1
11.4
blaubergventilatoren.de
blaubergventilatoren.de
Noise level reduction, dB (octave-frequency band [Hz])
Model 63 Hz 125 Hz 250 Hz
SDF 150/2000
SDF 160/600
SDF 160/900
SDF 160/2000
SDF 200/600
SDF 200/900
SDF 200/2000
SDF 250/600
SDF 250/900
SDF 100/600
SDF 100/900
SDF 100/2000
SDF 125/600
SDF 125/900
SDF 125/2000
SDF 150/600
SDF 150/900
SDF 250/2000
SDF 315/600
SDF 315/900
SDF 315/2000
2
2
3
4
3
3
5
5
3
2
2
2
4
3
4
5
7
10
4
6
8
3
4
6
11
6
8
11
10
7
5
4
5
7
7
8
9
15
15
7
8
10
8
9
12
22
16
13
20
21
12
12
9
11
17
12
14
16
23
24
14
13
15
500 Hz
16
18
22
42
30
21
40
42
20
20
18
21
34
32
40
23
47
48
20
22
25
1000 Hz
22
25
28
51
39
28
48
50
25
26
21
24
39
40
48
36
55
53
31
28
33
4000 Hz
10
11
12
19
17
13
25
26
10
10
7
8
14
19
26
17
28
39
13
17
21
2000 Hz
13
16
24
34
27
28
48
48
24
21
12
14
24
40
49
37
50
51
31
34
40
8000 Hz
10
12
13
23
22
16
25
25
12
10
9
10
18
20
25
16
25
36
12
20
23
50
40
30
20
10
0
0
1
2
3
4
500
5
1000
6
SDF (L=600 mm)
5
6
7
3
4
1
2
SDF 100/600
SDF 125/600
SDF 150/600
SDF 160/600
SDF 200/600
SDF 250/600
SDF 315/600
7
1500 2000 2500
Air flow [m³/h]
50
40
30
20
10
0
0
80
70
60
1
2
500
3
4
5
1000 1500
6
5
6
7
3
4
1
2
SDF (L=900 mm)
SDF 100/900
SDF 125/900
SDF 150/900
SDF 160/900
SDF 200/900
SDF 250/900
SDF 315/900
7
2000 2500
Air flow [m³/h]
160
140
120
100
80
60
40
20
0
0
1
2
500
3
4
5
1000
SDF (L=1200 mm)
6
7
1500
5
6
7
3
4
1
2
SDF 100/1200
SDF 125/1200
SDF 150/1200
SDF 160/1200
SDF 200/1200
SDF 250/1200
SDF 315/1200
2000 2500
Air flow [m³/h]
AIR HANDLING UNITS | 2021 223
