name: Positive Pressure Air Hose PVC Flexible Duct for Tunnel Ventilation
date: 2025-10-16 17:34:59
view: 180
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...
Overview
In confined spaces like tunnels, mines, and underground projects, ventilation is crucial for ensuring worker safety and project progress. Our positive-pressure PVC flexible hose, designed specifically for these demanding environments, is the core component of your efficient and reliable ventilation solution. It delivers a continuous flow of fresh air to every working surface, effectively exhausting dust, hazardous gases, and fumes, creating a solid safety barrier for underground operations. Crafted from a spirally wound high-strength polyester fiber core and coated internally and externally with a specially formulated PVC coating, this hose combines the strength of metal ducting with the flexibility of lightweight ducting.
Specifications
Technic | Coated or laminated |
Material | PVC coated fabric+ steel wire |
Color | Yellow or black or orange or customized |
Diameter | 10-122 inches |
Use temperature | -40℃ ~ +100℃ |
Coupling Type | Zipper, Velcro, or steel ring |
Helix | Steel wire |
Flame retardant(optional) | NFPA-701, B1, B2 or M2 |
Anti-static (optional) | less than 3×108ohm |
Product Features
Flexible
Waterproof
Fire-resistant
Anti-static
Anti-cold
Anti-mildew
Tear resistant
Wear resistant
Applications
This duct is ideal for the following applications:
Highway and railway tunnels: Supply and exhaust air during construction.
Mining: Forced ventilation in mines to remove harmful gases and dust.
Subway Engineering: Construction ventilation for underground platforms and tunnels. Large underground facilities: such as water conservancy hubs and civil air defense projects.
Emergency smoke exhaust: Can be used as a temporary smoke exhaust duct in the event of a fire.
