Positive Ventilation Duct Hose
Sulong Positive ventilation duct hose is also called lay flat ducting. It is mostly used for wind drawing-in in the underground mining and tunnel etc. project. It can be customized for diameter 200mm to 3200mm and length for every piece 3m to 200m. Kind of connection can be customized: Zipper, Steel Ring, Eyelet and Velcro.
Negative Ventilation Duct Hose
Sulong Negative Flow Ducting is also called Flexible Ducting, Sprial Ducting or Semi-rigid Ducting. It is used for wind drawing-out in the underground tunnel and mining etc. project. It can be customized for diameter 200mm to 2000mm and length for every piece 3m to 25m. Kind of connection can be customized: Zipper and Steel Ring.
Rigid Ventilation Ducting
Sulong Rigid Ventilation Duct is processing PVC colophony into 18cm wide rigid strap, every 1000m per roll. After moved to the site, winding machine makes them into cylindrical ducting of any length, then connect every two sections with shroud ring joint and hanging fixed quickly.
Industrial Flexible Ducting
Light and easy moved
Sulong Industrial Flexible Ducting is supported by steel wire and wrapped with rubber strips in the PVC coated fabric. One end is bunched with rope or belt, so as to connect the ventilator discretionary.