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Fabric ducts manufacturer OEM 2026
08
Th2
Th2
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Fabric ducts (also called fabric air dispersion systems or textile ducts) are used in HVAC systems to distribute air through a permeable fabric duct instead of traditional metal ductwork.
Here’s a clear, practical overview 👇
1. What are fabric ducts?
Fabric ducts are lightweight ducts made from engineered textile materials (polyester, coated polyester). Air is supplied through laser-cut holes, micro-perforations, or fabric permeability, creating uniform air distribution.
How they work
- Air enters the fabric duct from an AHU or fan
- Air exits through:
- Perforations (directional airflow)
- Nozzles (long throw)
- Permeable fabric (draft-free diffusion)
- This produces even air distribution with low velocity
- Key advantages
✅ Uniform airflow – eliminates hot/cold spots
✅ No condensation – fabric breathes and equalizes surface temperature
✅ Lightweight – up to 80–90% lighter than metal ducts
✅ Lower noise – fabric absorbs sound
✅ Easy installation & maintenance – washable and removable
✅ Energy efficient – improved air mixing reduces overcooling
Typical applications
🏭 Industrial plants and factories
❄️ Cold storage & refrigerated warehouses
🏟 Sports halls & gyms
🛒 Supermarkets & retail spaces
🍞 Food processing plants (food-grade, antibacterial fabrics)
🧪 Medium-level cleanrooms (ISO 7–8)
2. Fabric ducts are widely used in food
and beverage facilities when they are designed and selected correctly. Below is a food-industry–focused guide (practical, not marketing fluff).
Why fabric ducts work well in food plants
✅ Excellent hygiene – ducts can be removed and machine-washed
✅ No condensation drip – critical above open food lines
✅ Uniform airflow – avoids strong drafts that dry or contaminate products
✅ Low bacteria growth risk – with antimicrobial fabrics
✅ Quiet operation – better working environment
✅ Corrosion-free – unlike metal ducts in humid areas
- Air distribution strategy in food facilities
- Correct airflow design is critical.
- Best practices
- Use micro-perforations or laser-cut holes, not fabric leakage
- Supply air from the side or above operators, not directly onto food
- Maintain positive pressure in clean areas
- Zoning: separate ducts for raw vs cooked areas
- Typical food industry applications
🍞 Bakeries
🥩 Meat & poultry processing
🥛 Dairy plants
🥬 Fresh produce packing
🍫 Chocolate & confectionery
❄️ Cold rooms & chilled processing areas
3. Fabric ducts are very common and very effective in factories
Especially where you need even airflow, low drafts, and fast installation. Here’s a factory-focused breakdown
Why factories use fabric ducts
✅ Uniform air distribution over large areas
✅ Improved worker comfort (no cold air blasting)
✅ No condensation dripping (big deal in humid plants)
✅ Lightweight & fast installation (minimal structural load)
✅ Lower noise than metal ducts
✅ Corrosion-free in humid or chemical environments
✅ Easy reconfiguration when production layout changes
Typical factory applications
🏭 Electronics & assembly plants
🏭 Textile & garment factories
🏭 Plastic & rubber plants
🏭 Packaging & printing
🏭 Automotive parts
🏭 Warehouses & logistics centers
❄️ Cold storage & chilled production areas
Choosing the right fabric duct type
1.1 Comfort cooling (people-focused)
- Permeable or micro-perforated fabric
- Very low air velocity at occupied zone
Best for assembly lines, electronics, clean production
1.2. Process cooling
- Non-permeable fabric with laser holes or nozzles
- Directional airflow
- Suitable for hot machines
- Air & pressure
- Not suitable for very high-pressure systems
- At duct outlet: designed via hole size & spacing
- Installation height
- Ideal: 4–12 m
- Can be circular, half-round, or quarter-round
4. Using fabric ducts with an AHU (Air Handling Unit)
is a very common and proven solution—if the interface and design are done correctly. Here’s a clear, AHU-focused explanation.
How fabric ducts connect to an AHU
Fabric ducts are installed supply of the AHU, replacing metal supply ducts and diffusers.
Typical configuration:
- AHU → short metal plenum / transition → fabric duct
- Why the metal section?
- Stabilizes airflow
- Reduces turbulence
- Protects fabric from high velocity at the AHU outlet
👉 Never connect fabric duct directly to the fan outlet.
Key AHU design parameters for fabric ducts
1. Static pressure
- Ideal range: 120–250 Pa
- Max (varies by supplier): 300–1000 Pa
- Fabric ducts do not like high-pressure systems
2. Air velocity at connection
- Recommended: ≤ 8.5 m/s
- Use a plenum if AHU outlet velocity is higher
3. Air temperature
- Comfort HVAC: 5–45 °C
- Special fabrics:
- Up to 80–120 °C (coated polyester)
4. Humidity
Works very well in high humidity Eexcellent for avoiding condensation issues
- Fabric duct types used with AHUs
- Comfort cooling (offices, factories, halls)
- Permeable or micro-perforated fabric
- Draft-free diffusion
- Best thermal comfort
- Process cooling / spot cooling
- Non-permeable fabric with laser holes or nozzles
- Directional airflow
- Used in factories, heat-load zones