Overview

Underground, pipes must withstand the erosion of debris, equipment collisions, frequent dragging, moisture, and even chemicals. Our flexible ventilation duct is designed for this purpose: it utilizes a high-strength, tear-resistant composite coated fabric as its primary material, embedded with a robust spiral steel wire ring as its skeleton. This structure gives it unparalleled properties—it can bend, stretch, and compress like muscle to adapt to the narrow and varied layout of tunnels, while also acting like armor to withstand physical impact and abrasion.

Its core mission is to safely, efficiently, and durably deliver fresh air to every working face while rapidly exhausting polluted air and harmful dust, creating a safe, breathable environment for miners and ensuring efficient operation of machinery.

Advantages

Use high quality raw materials to ensure product quality;

Being engaged in the field of ventilation system for more than 30years, have rich experience in ventilation design;

Cooperate with several research institutes and have the latest technology;

Several automatic ducting welding production lines with a monthly output of 20,000 flexible ventilation tubes with assured batch order lead time;

PVC spiral tubes are available in custom sizes to ensure a perfect fit for your requests;

The spiral ventilation duct is coupled with zipper and Velcro. The extra fabric on which the zipper/Velcro is sewed is welded to the flexible duct body to ensure that there are no sewing needle eyes throughout the ducting, reducing air leakage.

Applications

This product is widely applicable to:

Underground mining faces in coal, metal, and non-metallic mines

Underground construction projects such as tunnels and culverts

Exhaust gas guidance for large construction vehicles

Any confined, narrow space requiring temporary or permanent high-pressure ventilation