NUOENWEI High Temperature Flexible Duct | -45°C to 300°C Industrial Heat-Resistant Air Duct Hose for HVAC, Exhaust & Ventilation Systems
The NUOENWEI High Temperature Flexible Duct is a premium-grade industrial ducting solution engineered for extreme thermal and mechanical environments. Designed to safely and efficiently transport hot air, cold air, exhaust fumes, and abrasive particulate-laden gases, this duct delivers consistent, reliable performance across a temperature spectrum from -45°C to 300°C —with upgraded models capable of withstanding continuous exposure up to 400°C and intermittent spikes to 1200°C.
Constructed with a robust triple-layer composite structure —featuring an insulating middle layer sandwiched between high-strength fiberglass fabric layers—this duct provides superior thermal retention, exceptional durability, and outstanding flexibility. The external spiral steel wire helix delivers unmatched abrasion resistance, allowing the duct to be dragged across floors and rough terrain without tearing or wearing through.
Available in diameters from 80mm to 1000mm and standard lengths of 3.6 meters or 7.6 meters, the NUOENWEI high-temperature flexible duct integrates seamlessly with a wide range of heating, ventilation, and exhaust systems. Offered in grey, yellow, black, and blue (with custom colors available for bulk orders), this duct merges high visibility with versatile application capability.
Whether routing exhaust in military installations, channeling hot air from portable indirect-fired heaters on construction sites, or evacuating chemical fumes in plastics processing plants, NUOENWEI high-temp flex duct is built to outlast and outperform conventional ducting.
NUOENWEI High Temperature Flexible Duct
The NUOENWEI High Temperature Flexible Duct is a specialty ductwork solution crafted to transport hot air, warm gases, and exhaust fumes with minimal heat loss and maximum durability. It serves as a critical component in systems where temperature resilience, flexibility, and strength are non-negotiable.
Related Parameters
| Feature Category | Specification Details | Notes |
|---|---|---|
| Temperature Specifications | ||
| Temperature Range (Standard) | -45°C to +300°C (continuous) | Higher grades available |
| Temperature Range (Upgraded) | Up to +400°C (continuous) | Intermittent up to 1200°C |
| Size Specifications | ||
| Inner Diameter Range | Minimum 80mm, Maximum 1000mm | Custom sizes available |
| Standard Lengths | 3.6m (12ft) or 7.6m (25ft) | Custom lengths on request |
| Construction & Materials | ||
| Construction | Triple-layer composite | Inner fiberglass + insulation core + outer jacket |
| Insulation Option | Insulated (3-layer with mid insulation) & Non-Insulated | Select based on application |
| Key Materials | Fiberglass fabric, composite foil, high-temperature coating | Wear-resistant outer layer |
| Reinforcement | Spiral steel wire helix | External abrasion protection |
| Wall Thickness | 0.45mm | — |
| Physical Properties | ||
| Available Colors | Grey, Yellow, Black, Blue | Custom colors for large orders; Yellow enhances site safety |
| Flexibility | Highly flexible, bendable | Adapts to complex installation layouts |
| Storage | Collapsible, easy storage | — |
| Performance Properties | ||
| Chemical Resistance | Acid & alkali metal resistant | — |
| Flame Retardancy | Flame-retardant | — |
| Anti-Vibration | Excellent vibration damping | — |
| Abrasion Resistance | External steel coil protection | Ground dragging without damage |
| Water Resistance | Waterproof | — |
| Certifications & Compliance | ||
| Certification | ISO9001 | — |
| ODM/OEM | Available | — |
Product Advantages
1. Extreme Temperature Resistance
Operates reliably from -45°C to 300°C continuous service. Optional ultra-high-temperature versions available for applications up to 400°C or even 1200°C for the most demanding industrial environments.
2. Superior Triple-Layer Insulation
The proprietary tri-layer construction, with a dedicated insulated middle layer, significantly reduces heat loss, improving system efficiency and safety. This design ensures minimal thermal loss during hot air conveyance over extended distances.
3. Exceptional Durability & Abrasion Resistance
The external spiral steel wire helix acts as a rugged "exoskeleton," providing superior external abrasion protection. The duct can be dragged on the ground or rubbed against other objects without damage—the sturdy steel wire absorbs the impact, not the duct wall itself.
4. Outstanding Flexibility
Highly flexible design allows for easy installation in limited or complex spaces. The duct bends freely and adapts to various layouts, making it ideal for both permanent installations and portable applications.
5. Chemical & Corrosion Resistance
Excellent resistance to acids and alkali metals ensures structural integrity and performance when handling steam, smoke, or chemically active fumes. This flame-retardant and corrosion-resistant capability provides reliable protection for critical industries like chemical processing.
6. Anti-Vibration Performance
Inherently highly shock-resistant and flexible, the duct absorbs and cushions vibration energy from blowers, compressors, and large machine tools. Its ability to bend freely prevents fatigue and tearing at connection points, ensuring a long-lasting, airtight seal.
7. Flame Retardant & Safety Certified
Manufactured with flame-retardant materials, the duct meets rigorous safety standards. Reduces the risk of overheating and other hazards by providing reliable containment of hot air.
8. Cost-Effective & Long Lifespan
Designed to last 30% longer than standard ducts, significantly reducing replacement costs and maintenance downtime. The lightweight design also facilitates easy transport and installation.
Application Scenario
The NUOENWEI High Temperature Flexible Duct is engineered for a diverse range of industrial, commercial, and specialized applications:
1. Exhaust & Ventilation Systems
- Engine test bays, aircraft hangars, and chemical fume extraction
- Welding shops, foundries, and laboratory fume control
- Exhaust gas evacuation and industrial ventilation systems
2. Heating Systems & Temporary Heating
- Portable gas/oil indirect-fired air heaters—efficiently transports hot air to desired areas while safely venting flue gases
- Construction site temporary heating and building thawing
- Warehouse heating and ground de-icing applications
- Ventilation-type heaters requiring hot air distribution over distances
3. Manufacturing & Processing
- Plastic industry pellet dryers and extrusion machines
- Printing press airflow systems
- Blower and compressor venting
- Conveying abrasive solids such as dust and fibers
4. Engine & Automotive
- Engine manufacturing and heating
- Motor construction and engine bay hot air handling
5. Aerospace & Military
- Aircraft manufacturing and hangar ventilation
- Military construction, mobile command units, decontamination tents, and field hospitals
6. Chemical & Industrial Processing
- Chemical plant fume exhaust and steam handling
- Industrial dust and smoke exhaust systems
- Corrosive exhaust and high-velocity air stream handling
Frequently Asked Questions
Contact person: Elaine Guo
Tel.: +8615875732388
E-mail: sales@fsnuowei.com
Add: No. 39 Xingjiao Road, Hecheng Street, Gaoming District, Foshan City, Guangdong Province,China