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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

Accessories

MCA • Clamping strips ALUTAPE 40 • Aluminium tapes ALUTAPE 40S PREMIUM • Aluminium tapes for insulation.

Datasheet

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

Pressure loss graph

Pressure loss in 90° bend

Sound attenuation for 1, 2 and 3m duct

SONOFLEX 25		Test report Peutz bv - The Netherlands n° A3308-1-RA-001
Ø [mm]	L [m]	Attenuation, dB -Mid Frequency [Hz]
Ø [mm]	L [m]	63	125	250	500	1000	2000	4000	8000
82	1	0.3	2.9	9.2	18.3	33.1	42.2	39.2	34.9
	2	6	5.4	12.5	24.8	35.8	47.9	48.6	49.7
	3	2.6	7.5	16.5	27.4	39.6	51.5	50.9	52.7
102	1	7.9	11.1	17	26.9	29.3	36.9	24.6	20.7
	2	11.1	19	31.6	34.4	38.5	46.4	41.2	30.1
	3	14.9	25	37.5	34.8	42.4	51.2	52.1	47.9
127	1	6.1	6.6	17.3	27	28.4	34.7	21.6	17.9
	2	11.1	17.1	33.1	31.9	36.7	43.4	34.8	24.6
	3	11.4	17.7	39.2	33.7	39.2	46.9	46.3	37.3
152	1	3.3	4.2	12	17.2	19	23.6	13.1	8.3
	2	3.3	7.1	18.3	29.6	32.7	38.9	24.3	17.6
	3	5.8	12.5	29.3	33.5	36.1	43.1	31.8	21.5
165	1	5.5	3.8	10.3	20.1	20.5	24.7	15.6	11.8
	2	10.5	10.7	21.2	30.4	31.2	38.4	23.8	15.9
	3	12.3	13.4	31	35	38.2	44.1	34.1	22.1
185	1	9.7	1.7	11.6	18.6	19	24.1	13.7	10.6
	2	11.9	10.2	25.8	27.5	30.2	37.8	26	19.4
	3	14.4	15.5	34.8	30.2	34.8	42.4	37.8	28.8
203	1	2.7	5.8	13.6	19.8	19.4	20.3	13.2	11.6
	2	9.1	10.3	27.5	28.5	30.6	35.6	26.6	22.8
	3	9.8	10.1	25.4	34.6	40.4	44	45.1	43.2
229	1	3.7	6.2	16.2	14.6	16.6	16.1	9.5	7.1
	2	9.3	17.6	30.7	23.3	26.7	28.5	18	13.8
	3	7.6	14.1	33	28.5	32.9	39.1	29.3	25.4
254	1	7.7	2.6	12.9	16.4	16.6	15.6	8.5	7.8
	2	8.2	7.6	25.2	24.6	27.6	29.1	19.3	15.6
	3	10.4	12.8	33.2	29.2	31	34.6	24	18.8
305	1	3.9	4.6	12.9	14.8	14.4	12.3	6.7	5.9
	2	9.7	12.8	27.6	22.1	24.3	21.8	11.7	10.1
	3	11.2	17.4	31	25.6	27.1	27.3	15.9	15
315	1	5.1	5.9	14.3	13.7	12.9	11.3	6.3	5
	2	9.2	12.1	26.9	22	23.2	20.8	11.8	8.5
	3	12.1	17.1	30.4	25	26.7	28.3	17.7	15.5
356	1	4.2	3.7	10.4	11.4	11.8	8.4	4.6	4.3
	2	5.3	5.9	21.3	18.8	21.7	18.4	12.2	12.1
	3	5.8	8.6	25.3	25.3	29.8	32.7	24.4	18.6
406	1	7.1	6.8	12.7	11	10.9	6.9	4	3.2
	2	9.7	15.8	22.3	18.3	22.5	13.1	8.1	7
	3	11.7	18.2	26	22.5	26.3	27.3	18	15.6
Test report Peutz bv - The Netherlands n° AB323-1
Ø [mm]	L [m]	Attenuation, dB -Mid Frequency [Hz]
Ø [mm]	L [m]	63	125	250	500	1000	2000	4000	8000
457	1		12	10	8	8	6	8
	2		20	17	15	16	13	12
	3		25	22	21	25	19	16
508	1		8	8	8	9	6	7
	2		20	17	16	17	11	11
	3		24	22	20	25	15	14

Order example

Sonoflex 25, 254

Explanation :

Sonoflex 25 = Type of flexible duct

254 = Diameter of flexible duct

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	Introduction

A	Products for air diffusion

B	Valves & volume control dampers

C	Air duct systems

	C01	Spiral duct and fittings

	C02	Flexible ducts

	C03	Synthetic duct and fitting

	C04	Rigid foam boards

	C05	Miscellaneous galvaplates

	C06	Sound attenuators

D	Air duct components and accessories

E	Fireproof products

F	Insulating products

G	Air filters

I	Fans & ventilation systems

J	Air handling, air conditioning and heatpumps


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