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Metal jacket sound attenuators heavy duty Acoustic Flexible duct for HVAC systems

City: Beijing
Province/State: Beijing
Country/Region: China
Tel: 86-010-82920828
Contact Person:
Mr Jason

Metal jacket sound attenuators heavy duty Acoustic Flexible duct for HVAC systems

Brand Name : DEC
Model Number : DEC-CXIA
Certification : ISO9001:2015
Place of Origin : China
MOQ : 1000 meter
Price : USD1.5~5/meter
Payment Terms : Western Union, T/T, L/C, D/A
Supply Ability : 5000 meter/day
Delivery Time : 5 to 13 days after receiving your payments
Packaging Details : plastic bags/can compress save space
Product : Acoustic flexible duct
Inner duct : Perforated duct
Diameter Range : 52mm-610mm
Temperature : -30~+140℃
Operation Pressure : Max.3000Pa
Insulation : Fibreglass wool or polyester
Air Velocity : Max.30m/s
Bending radius : 0.54xD+25mm
Insertion Loss : ≥10db
Length : 10m
Packing : Compressed into a cartonbox
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Metal jacket sound attenuators heavy duty Acoustic Flexible duct for HVAC systems

Features & Benefits:
- Superior Insertion Loss
- 10 Year Limited Warranty
- Unique Reinforced, Metalized Jacket
- Certified R-Values
- Airport Noise Reduction Solution


DEC-CXIA is an insulated acoustic air duct, manufactured by using a dead soft aluminum strip which is perforated, spirally wound and mechanically joined together.

The inner duct is draped with a thick fiberglass insulation and covered by a flame retardant, non-toxic polyethylene vapour barrier.

This top-rated product uses a perforated core with an open area of 20% to 25% to completely cushion sounds such as air movement and duct vibrations.

Full range of flexible acoustic thermal insulated ducting for preventing condensation and reducing noise when there’s temperature difference in airflow of ventilation system.

Product NameNoiseproof 8 inch 25ft Acoustic Flexible duct for HVAC systems
Length3m 6m 10m
Fire ResistanceClass A2 (Max) non-flammable
Temperature Range-30℃/+150℃
Operating Pressure3000Pa
Inner Diameter45mm-400mm(1.8"-16")
PackingCompressed into a cartonbox
Maximum Air Velocity30m/s
ApplicationHVAC system/Industrial Ventilation/Residential Ventilation/Kitchen/Dryer


1.Temperature range: -30℃ to +150℃
2.Operating pressure: Max.3000 Pa
3.Opearting air velocity: Max 30m/s
4.Bending radius: Min 0.54*D+25mm
5.Diameter range: 52mm-508mm
6.Standard length: 10m

7.Reaction to fire: Difficult to ignite

8.Packing: Single cardboard box

9.Sound Eliminating Performance: Grade A Insertion Loss 10dB

Polyester insulation acoustic flexible duct

Sound attenuators equip with machines


1.Inner duct: perforated AL foil
2.Glass wool blanket: 25mm,16kg/m³
3.Barrier:non woven fabric/PT film
4.R-value: 0.65㎡k/w
5.Outer jacket: steel spiral helix between the lays


1.Are you manufacturer or trade company?

we are flexible duct professional manufacturer.specilized in this field more than 20 years.

2.How could i trust you?

If have time come Guangzhou or Beijing,i am glad to receive you.

3.What product can you provide?

Any flexible air duct.

4.Have you attended exhibition before?

Yes,many,but almost china exhibition.


We, DEC Mach Elec&Equip (Beijing) Co.,Ltd.(“Dec Beijing”) is an exclusively foreign-owned enterprise formed by Holland Environment Group Company (“DEC Group”) in 1996 and with an amount of RMB ten million and five hundred thousand of registered capital.

DEC Group, one of the largest manufacturers of flexible duct in the world, is a transnational corporation specializing in manufacture of various kinds of ventilation ducts. Its products of flexible ventilation duct have passed quality certification tests in more than 20 countries such as American UL181 and British BS476.

By using a full set of automated production line of DEC Group and its product specifications and manufacturing techniques, DEC Beijing, manufacture nine major species ventilation flexible ducts, such as Aluminum foil duct,Combined PVC and AL foil duct,Insulated duct and acoustical and thermal ducts applying for ventilating and exhausting systems in high, medium or low pressures, or erosive, high-temperature, heat-insulation environments.

Annual output of flexible ducts of DEC Beijing is five hundred thousand (500,000)ms, amounting to circle more than ten times of the circumference of the earth. For more than ten years of development in Asia, now Dec Beijing focus on supplying high quality flexible ducts to a variety of industries such as building, nuclear energy, military, electron, space transportation, machinery, agriculture, steel refinery in China or overseas market.

Where there is gas ventilation, there will be our products. Dec Beijing have already become one of the leaders in domestic construction ventilating and industrial flexible ducts.

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