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SONOFLEX 25 • Acoustic laminated aluminium flexible ducts

  • Insulated
  • Aluminium laminated
  • Acoustically insulated
  • Fire resistance B - s1, d0
  • 25 mm insulation
  • Pink anti-allergical glass wool

The SONOFLEX 25 is a thermally and acoustically insulated duct, consisting of a micro-perforated inner duct of the ALUFLEX type and a laminated 3-layer outer jacket. The yellow fibreglass anti-allergic insulation has been developed especially for flexible ducting. A polyester barrier is applied between the fibreglass insulation and the inner duct to avoid the diffusion of insulation particles in the air stream.

Application

  • The SONOFLEX 25 flexible ducts are used in ventilation, air conditioning, and air handling systems where high mechanical strength, temperature, fire-resistance, and thermal and sound attenuating qualities are required

Composition

  • Micro-perforated inner duct of the ALUFLEX type, consisting of
    • 1 layer of 7 μ aluminium
    • 1 layer of 12 μ polyester (PET)
    • 1 layer of 12 μ aliminized polyester (PET)
    • Total thickness without glue: 31 μ
  • Metalized polyester outer jacket 3-layer laminate, consisting of
    • 2 layers of polyester of 12 μ each
    • 1 layer aluminium of 7µ
    • Total thickness without glue: 31 μ
  • Fibreglass insulation:
- Density: 16 kg/m³
- Thickness: 25 mm
- Thermal resistance: 0,65 K.m²/W
- Thermal conductivity: 0,039 W/m-K
- Colour: pink (Ø82 - 406 mm) / yellow (Ø457 - 508 mm)
  • Polyester barrier of 12µ between insulation and inner duct
  • Wire spacing: a steel spiral spring of different thicknesses and a pitch of 25mm (Ø82-90mm), 36mm (Ø102-508mm)
  • Colour: Aluminium

Specifications

  • Temperature range: From - 30°C till + 140°C
  • Air velocity (max): 20 m/s
  • Operating pressure: -188 up to 2500 Pa
  • Center bend radius: 1 x Diameter minimum
  • Diameter range: 82 mm - 508 mm
  • Fire resistance: class B - s1, d0 according to EN13501-1
  • As the product does not contain PVC, no toxic vapours are released should fire occur
  • Produced according EN 13180: Dia Class B, Thightness Class C, Sag<4°, Crushing strength 13-35kg compressed; 2.5kg uncompressed.

Packaging

  • Each standard length of 10 m is compressed in an individual, reinforced cardboard box

Chemical resistance

  • Good resistance to many organic solvents
  • Moderate resistance to acid and base

Static properties

  • The SONOFLEX 25 is suitable for applications where static discharges have to be avoided

Restrictions

  • The SONOFLEX 25 ducts are not suitable for transporting air with a high concentration of acid and base
  • The SONOFLEX 25 can not be used for discharging combustion gases from open fire places and oil-fired boilers

Accessories

  • Clamps type MCA
  • Aluminium tape, type ALUTAPE 40S PREMIUM

Articles

Article selection assistant
Battery type
Configuration
Type
Size
Article number Battery type Configuration Type Size E-shop
I100951060000 BE ECO NEOTIME 600 PREMIUM BE ECO 600
I100951060001 BE DIVA NEOTIME 600 PREMIUM BE DIVA 600
I100951060002 BE LOBBY NEOTIME 600 PREMIUM BE LOBBY 600
I100951090000 BE ECO NEOTIME 900 PREMIUM BE ECO 900
I100951090001 BE DIVA NEOTIME 900 PREMIUM BE DIVA 900
I100951090002 BE LOBBY NEOTIME 900 PREMIUM BE LOBBY 900
I100951130000 BE ECO NEOTIME 1300 PREMIUM BE ECO 1300
I100951130001 BE DIVA NEOTIME 1300 PREMIUM BE DIVA 1300
I100951130002 BE LOBBY NEOTIME 1300 PREMIUM BE LOBBY 1300
I100951180000 BE ECO NEOTIME 1800 PREMIUM BE ECO 1800
I100951180001 BE DIVA NEOTIME 1800 PREMIUM BE DIVA 1800
I100951180002 BE LOBBY NEOTIME 1800 PREMIUM BE LOBBY 1800
I100951250000 BE ECO NEOTIME 2500 PREMIUM BE ECO 2500
I100951250001 BE DIVA NEOTIME 2500 PREMIUM BE DIVA 2500
I100951250002 BE LOBBY NEOTIME 2500 PREMIUM BE LOBBY 2500
I100952060000 CO ECO NEOTIME 600 PREMIUM CO ECO 600
I100952060001 CO DIVA NEOTIME 600 PREMIUM CO DIVA 600
I100952060002 CO LOBBY NEOTIME 600 PREMIUM CO LOBBY 600
I100952090000 CO ECO NEOTIME 900 PREMIUM CO ECO 900
I100952090001 CO DIVA NEOTIME 900 PREMIUM CO DIVA 900
I100952090002 CO LOBBY NEOTIME 900 PREMIUM CO LOBBY 900
I100952130000 CO ECO NEOTIME 1300 PREMIUM CO ECO 1300
I100952130001 CO DIVA NEOTIME 1300 PREMIUM CO DIVA 1300
I100952130002 CO LOBBY NEOTIME 1300 PREMIUM CO LOBBY 1300
I100952180000 CO ECO NEOTIME 1800 PREMIUM CO ECO 1800
I100952180001 CO DIVA NEOTIME 1800 PREMIUM CO DIVA 1800
I100952180002 CO LOBBY NEOTIME 1800 PREMIUM CO LOBBY 1800
I100952250000 CO ECO NEOTIME 2500 PREMIUM CO ECO 2500
I100952250001 CO DIVA NEOTIME 2500 PREMIUM CO DIVA 2500
I100952250002 CO LOBBY NEOTIME 2500 PREMIUM CO LOBBY 2500

Pressure loss graph

Pressure loss in 90° bend

Sound attenuation for 1, 2 and 3m duct

SONOFLEX 25Test report Peutz bv - The Netherlands n° A3308-1-RA-001
Ø [mm]L [m]Attenuation, dB -Mid Frequency [Hz]
631252505001000200040008000
8210.32.99.218.333.142.239.234.9
265.412.524.835.847.948.649.7
32.67.516.527.439.651.550.952.7
10217.911.11726.929.336.924.620.7
211.11931.634.438.546.441.230.1
314.92537.534.842.451.252.147.9
12716.16.617.32728.434.721.617.9
211.117.133.131.936.743.434.824.6
311.417.739.233.739.246.946.337.3
15213.34.21217.21923.613.18.3
23.37.118.329.632.738.924.317.6
35.812.529.333.536.143.131.821.5
16515.53.810.320.120.524.715.611.8
210.510.721.230.431.238.423.815.9
312.313.4313538.244.134.122.1
18519.71.711.618.61924.113.710.6
211.910.225.827.530.237.82619.4
314.415.534.830.234.842.437.828.8
20312.75.813.619.819.420.313.211.6
29.110.327.528.530.635.626.622.8
39.810.125.434.640.44445.143.2
22913.76.216.214.616.616.19.57.1
29.317.630.723.326.728.51813.8
37.614.13328.532.939.129.325.4
25417.72.612.916.416.615.68.57.8
28.27.625.224.627.629.119.315.6
310.412.833.229.23134.62418.8
30513.94.612.914.814.412.36.75.9
29.712.827.622.124.321.811.710.1
311.217.43125.627.127.315.915
31515.15.914.313.712.911.36.35
29.212.126.92223.220.811.88.5
312.117.130.42526.728.317.715.5
35614.23.710.411.411.88.44.64.3
25.35.921.318.821.718.412.212.1
35.88.625.325.329.832.724.418.6
40617.16.812.71110.96.943.2
29.715.822.318.322.513.18.17
311.718.22622.526.327.31815.6
Test report Peutz bv - The Netherlands n° AB323-1
Ø [mm]L [m]Attenuation, dB -Mid Frequency [Hz]
631252505001000200040008000
4571 12108868 
2 201715161312 
3 252221251916 
5081 888967 
2 201716171111 
3 242220251514 

Order example

Sonoflex 25, 254

Explanation :

Sonoflex 25 = Type of flexible duct

254 = Diameter of flexible duct

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