The lay flat ventilation duct is manufactured of PVC-coated woven fabric designed to ensure excellent tube function under severe conditions. The material is welded in heat sealing machine to form flexible tubes.these features are dramatically decrease the air leakage.the fresh air can reach further into operation tunnel or mining.
PVC coated fabric & tarpaulin is featured by high strength, excellent quality stability and self-cleaning of surface, anti-aging and various weather resistance performance.our tarpaulins have many variations and types either in regard to colors, width or degree of flame-retardant finishing.
The tubing is manufactured with spring steel rings at each end.the ring end of one tube is inserted into the ring end of the next length of tubing being installed.this connection provides a secure fit and extended the service life.
The mining and tunnel construction environment is complex.with the help of irregular duct.the fresh air can reach further into operation tunnel or mining. It will be better for us to provide more comfortable construction environment to working staff.
Tee piece .Wye piece.Elbow,Reducer
The spiral reinforced duct is manufactured of PVC-coated woven fabric with spring steel wire helix. Adopting advanced hot air welding technologies made them more flexible.They can be used as elbows with positive and negative applications. These characteristics make spiral ventilation duct ideal for air ventilation and dust removal in mining, tunnel operation, underground constructions and confined space.The coupling system can be steel ring,zipper or velcro. The pitch can be 150mm,200mm,300mm and the diameter of wire can be from 5mm to 10mm.The diameter of spiral reinforced duct range from 300mm to 1500mm.other special specifications can be customized upon custom's request.
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