Mining Positive Pressure Ventilation Duct φ800-10

Mining Positive Pressure Ventilation Duct φ800-10  Product Overview

The Mining Positive Pressure Ventilation Duct φ800-10 (4×4) is a large-diameter flexible positive pressure air duct specially designed for underground coal mine tunneling and ventilation operations. Made from high-strength coated knife-scraped fabric with a 4-meter width, panels are heat-welded to form a compact tube with excellent airtightness and easy installation. This product complies with national industry standards MT/T 391-2012 and GB/T 20043-2015, meeting key mining requirements including flame retardancy, anti-static properties, and pressure resistance. It is ideal for medium-diameter, high-efficiency main and auxiliary ventilation systems in underground mining.


Mining Positive Pressure Ventilation Duct φ800-10  Key Features

  • Large 800mm diameter combined with 4-meter wide fabric ensures high airflow capacity and low pressure loss

  • Made from coal mine certified flame-retardant, anti-static knife-scraped fabric

  • High-frequency heat-welded seams provide a tight seal to prevent air leakage

  • Custom directional printing available: serial numbers, logos, airflow direction for easy underground identification

  • Compatible with multiple connector types, adaptable to various underground air duct layouts


Mining Positive Pressure Ventilation Duct φ800-10  Technical Specifications

Parameter Description
Product Name Mining Positive Pressure Ventilation Duct φ800-10 (4×4)
Nominal Diameter φ800 mm
Section Length 10 meters
Fabric Size 4 meters × 4 meters
Material Structure Double-sided PVC flame-retardant, anti-static knife-scraped fabric with polyester base fabric
Tensile Strength ≥4500 N / 5 cm
Surface Resistance ≤3×10⁸ Ω (Compliant with GB/T 2951 Coal Safety Standards)
Flame Retardant Rating B1 or above (According to GB 8624-2012 standard)
Suitable Air Pressure ≤2800 Pa (Recommended value; adjustable per system)
Application Environment Underground coal mine tunneling face, auxiliary and main ventilation airways, construction return air tunnels

Mining Positive Pressure Ventilation Duct φ800-10  Standards & Coal Safety Compliance

  • MT/T 391-2012 “Technical Conditions for Mining Ventilation Ducts”

  • GB/T 20043-2015 “Coated Fabric Mining Ventilation Hose”

  • GB/T 3836 series (For explosive gas environments)

This product is specifically designed for underground coal mine use and does not comply with or rely on any foreign standards.


Mining Positive Pressure Ventilation Duct φ800-10  Accessories & Services

Item Description
Connector Types Supports steel ring sockets, zippers, Velcro, duct clamps, and more
Marking & Printing Customizable serial numbers, airflow direction, project names, logos
Packaging Woven bags or double-layer PE film packaging, wear-resistant and tear-proof for underground transport
Testing & Certification Includes flame retardant, anti-static test reports, certificates of conformity, and third-party coal safety certifications
OEM / ODM Support Custom branding and production services available upon request for ventilation system manufacturers and distributors

Mining Positive Pressure Ventilation Duct φ800-10 Mining Positive Pressure Ventilation Duct φ800-10

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