NUOENWEI Static Conductive Duct – Anti-Static / Explosion-Proof Flexible Hose for Hazardous Air & Fume Extraction
NUOENWEI Static Conductive Duct
The NUOENWEI Static Conductive Duct is engineered for industrial environments requiring explosion-proof ventilation. Unlike standard ducts, this hose features intrinsically conductive fabric and a patented multi-point grounding system – two tin-plated copper braids are integrated with the internal steel helix, creating multiple conductive paths. Surface resistance of the conductive fabric is ≤ 2×10³ Ω, ensuring rapid charge dissipation to a safe level.
Every meter of the hose includes a built-in hanging loop, making it easy to secure the duct in tunnels, mineshafts, or ceiling installations. The hose connects seamlessly to portable explosion-proof fans via belt or PP rope, and can be extended indefinitely by coupling multiple lengths.
Related Parameters
| Parameter | Specification / Details |
|---|---|
| Brand | NUOENWEI |
| Product Name | Conductive Explosion-Proof Duct / Anti-Static Flexible Hose |
| Material | Class B flame-retardant PVC + high-carbon spring steel wire |
| Wall Thickness | 0.4 mm – 0.65 mm (depending on diameter) |
| Color | Black (standard) |
| Surface Resistance (conductive fabric) | 2 × 10³ Ω |
| Grounding | Two tinned copper braids (bonded to steel helix) – multiple redundant paths |
| Hanging / Support Loops | Integrated every ~1 meter (sewn or molded loops) |
| Compression Ratio | Extends to approx. 5× compressed length (stores to ~20% of extended length) |
| Standard Lengths | 5 m, 10 m (custom lengths available upon request) |
| Diameter Range (ID) | 4″, 5″, 6″, 8″, 10″, 12″, 14″, 16″, 18″, 20″, 24″, 28″, 32″, 36″, 40″, 48″, 52″, 59″ (metric: 100 mm – 1500 mm) |
| Operating Temperature | Standard: -15°C to +80°C |
| Flame Rating | Class B (self-extinguishing, equivalent to UL94 V-0) |
| Resistance | Acid, alkali, tear, abrasion, corrosion, UV, ozone, water, salt spray |
| Toxicity / Purity | Non-toxic, fiber-free, dust-free, odorless – safe for food-adjacent & clean environments |
| Leakage | Zero (seamless, non-porous construction) |
| Connection to Fan / System | Belt, PP rope, or band clamps (compatible with portable explosion-proof fans) |
| Certification (Optional) | Technical declaration of conductivity; ATEX/IECEx certified variants available on request |
| Weight | Lightweight – depends on diameter & length (approx. 1.2–3.5 kg per meter for mid diameters) |
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Product Advantages
Static conductive body (≤ 2×10³ Ω) – Prevents electrostatic sparking, making it safe for explosive dust/gas environments.
Two integrated tin-plated copper braids – Provide multiple grounding paths and allow easy connection to earth terminals.
Grade B flame-retardant PVC cover – Self-extinguishing material meets fire safety standards.
High-carbon spring steel helix – Crush-resistant yet flexible; maintains shape under vacuum or pressure.
Retractable & bendable design – Expands from 1/3 to full length; fits tight corners and saves storage space.
Built-in hanging rings every ~1 meter – Enables quick rigging without straps or clamps for most installations.
Seamless construction – Zero air leakage and no fiber shedding; suitable for clean air or toxic fume extraction.
Wall thickness: 0.4mm – 0.65mm – Durable yet lightweight; easy to carry and deploy.
Wide temperature range: -15°C to +80°C – Optional cold-resistant or high-temperature versions available.
Eco-friendly – Non-toxic, odorless, with no dust or fiber release – safe for personnel.
Application Scenario
The NUOENWEI Static Conductive Duct is ideal for hazardous zone ventilation where static buildup is a primary ignition risk:
- Underground mines & tunnels – For forced or exhaust ventilation of methane/dust
- Oil & gas refineries – Fume extraction during maintenance
- Chemical plants – Conveying solvent vapors or reactive powders
- Shipbuilding & repair – Welding fume extraction inside confined spaces
- Laboratories – Exhaust of flammable vapors from fume hoods
- Municipal engineering – Sewer gas ventilation during repairs
- Fire rescue – Positive pressure ventilation in hazardous structures
- Woodworking / grain handling – Explosive dust collection
- Portable anti-static fans – Direct belt/rope connection for mobile use
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