📌Negative Pressure Ventilation Duct φ800-10 Negative Pressure Ventilation Duct

The φ800-10 mining negative pressure ventilation duct (made from 2×3 m fabric panels) is a specialized underground ventilation pipe designed for coal mines.
It is used for exhausting methane gas, hot humid air, and harmful gases from the working face, ensuring safe and fresh air supply in mining operations.

This duct is made from high-strength PVC-coated polyester (knife-coated fabric) with flame-retardant and anti-static properties, meeting coal mine safety standards. It features excellent negative pressure resistance without collapsing or flattening during operation, making it suitable for main haulage, auxiliary tunnels, and local ventilation systems.

The 2m × 3m fabric panel design ensures easy forming, optimal flexibility, and efficient installation.

✅ Negative Pressure Ventilation Duct φ800-10 Key Features – φ800-10 Negative Pressure Duct

Large air capacity: 800 mm diameter, compatible with various negative pressure exhaust systems.
Easy fabrication: 2×3 m fabric panels allow convenient sewing and efficient roll transportation.
Smooth, wear-resistant surface: Knife-coated PVC fabric resists abrasion and is easy to clean.
Superior collapse resistance: Maintains shape under high negative pressure, no flattening during use.
Quick installation: 10 m per section with standard quick-connect couplings, supports multi-section connection.

📐 Negative Pressure Ventilation Duct φ800-10 Technical Specifications – φ800-10 Negative Pressure Ventilation Duct

Item	Specification
Nominal Diameter	φ800 mm
Section Length	10 m
Material Structure	Polyester base fabric + double-sided flame-retardant & anti-static PVC coating
Fabric Panel Size	2 m × 3 m (for duct forming)
Negative Pressure Resistance	≥ 3000 Pa
Flame Retardancy	B1 Grade (GB 8624-2012)
Surface Resistance	≤ 3×10⁸ Ω (GB/T 2951 compliant)

📜Negative Pressure Ventilation Duct φ800-10 Compliance & Standards

MT/T 391-2012 – Technical Conditions for Coal Mine Ventilation Ducts
GB/T 20043-2015 – PVC Coated Fabric Ventilation Hose for Mining
GB 3836 series – Safety Specifications for Coal Mine Electrical Equipment
Fully compliant with flame-retardant, anti-static, and explosion-proof requirements for coal mine safety certification

📦 Negative Pressure Ventilation Duct φ800-10 Applications & Customization Options

Customization Item	Description
Duct Length	10 m / 15 m / 20 m or customized
Joint Type	Double-sided zipper / Steel ring clamp / Velcro quick-connect
Fabric Color	Yellow / Orange / Black / Grey-white
Corporate Branding	Logo printing, product numbering, custom sampling
Packaging & Shipping	Export/mining standard packaging, custom labeling