name: PVC Coated Flexible Air Exhaust Spiral Duct fire retardant Ventilation Duct for Tunnel
date: 2025-01-02 17:51:42
view: 168
about:
We, NEWSTAR PLASTIC INDUSTRY CO.,LTD., is a professional supplier of flexible ventilation ducting for mine and tunnels in China. Being engaged in the field of mine ventilation for more than 30 years, we have rich experience in making all kinds of fle...
Spiral ventilation ducting can be used as elbows in negative pressure application. Through the exhaust fan to form negative pressure in the tunnels, to promote the outdoor fresh air into the underground tunnels, so as to achieve the renewal and circulation of indoor air.
Specific attributes
Material | PVC Coated Fabric |
Base Fabric | knitted/woven polyester fabric |
Color | Yellow or Black |
Fireproof | B1, B2, M1, M2, NFPA701 Optional |
Use temperature | -40℃ ~ +100℃ |
Surface Resistivity-Anti-static (optional) | <300 mega |
Pitch | 150mm, 200mm, 300mm |
Diameter of Wire | 5mm ~ 10mm |
Diameter | 10 inches ~ 122 inches |
Coupling Type | Steel ring, Zipper, Velcro or Customers Requirement |
Features | Flexible, Waterproof, Windproof, Anti-cold, Anti-mildew, Anti-aging, Corrosion Resistance, Flame retardant, etc. |
Applications
Industrial plants: The ventilation ducting can bend freely to accommodate to a variety of complex plant structures.
High-rise buildings: Our flexible spiral ventilation ducting can pass between high floors to meet large area ventilation needs.
Mines and underground tunnels: Providing fresh air for mines which can effectively reduce the concentration of explosive substances such as gas and coal dust in underground coal mines and reduce the occurrence of safety accidents.
