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Overview
SPICON Ventilation Ducts are flexible, flame-retardant air distribution systems designed for tunnel and underground ventilation. Manufactured from high-strength PVC-coated polyester fabric, they ensure efficient airflow and durability.

Applications

  • Tunnel ventilation
  • Mining air circulation
  • Underground construction
  • Industrial exhaust systems
Key Features 

  • High-Strength Material: Made from flame-retardant, anti-static PVC/PU coated polyester fabric.
  • Air-Tight & Leak-Proof: Welded or stitched seams ensure minimal air loss over long distances.
  • Custom Length & Diameter: Available in a variety of sizes to match site-specific airflow demands.
  • Lightweight & Flexible: Easy to install, dismantle, and relocate within narrow and curved spaces.
  • UV and Chemical Resistance: Withstands exposure to harsh underground elements.
  • Compatibility: Perfectly suited for both axial and centrifugal ventilation fans.
  • Secure Coupling: Quick-connect zipper or ring-lock systems for fast and secure jointing.

Technical Specifications:

Parameter

Specification

Model

Spicon VD Series

Type

Flexible PVC/PU Ventilation Duct

Diameter Range

300 mm – 2000 mm

Length Per Section

5 m / 10 m / 15 m (custom lengths available)

Material

PVC Coated Polyester Fabric / PU Coated Fabric

Fabric Weight

500 GSM – 1000 GSM

Pressure Resistance

Up to ± 3500 Pa

Temperature Resistance

-20°C to +80°C

Fire Retardant Standard

IS 11871 / DIN 4102 B1 / NFPA 701

Anti-Static Property

Optional (as per mining/tunnel safety requirements)

Air Leakage

< 1% per 100 meters

Coupling System

Zipper / Velcro / Ring with Clamp / Eyelet Belt Type

Support Rings

Steel / Nylon / Flexible Coil Wire (optional)

Color Options

Yellow, Orange, Blue, Custom Branding Available

Packaging

Foldable with carrying bags or reel drum


Applications

  • Tunnel Construction (Metro, Highway, Railway)
  • Underground Mining Shafts
  • Cavern Ventilation
  • Large Hydro Projects
  • Temporary or Portable Ventilation Systems

Why Choose Spicon Ventilation Ducts?

  • High Durability: Built to endure the demanding environments of underground work.
  • Minimal Maintenance: Designed for long service life with low wear and tear.
  • Precision Engineering: Ensures uniform airflow across duct length with minimal pressure drop.
  • Field Support: Onsite customization, repair, and replacement services available.