JULI® antistatic ventilation duct is primarily designed for high concentration gas in the underground, such as coal mines and tunnels. Antistatic duct fabric is treated with a water-based surface material that is environmentally friendly, emits no VOC during processing and use, is safe for workers, and stabilizes the antistatic value at 3×106Ω.
The fire resistance of the JULI® antistatic ventilation duct is DIN4102 B1, NFPA701, EN13501, DIN75200, and all fire resistance is accompanied by an SGS test result. When a fire is present, a high flame retardant can help to limit the hazardous and harmful gases that can injure the human body.
| JULI® Antistatic Ventilation Ducting Technical Specification | ||
| Item | Unit | Value | 
| Diameter | mm | 300-3000 | 
| Section length | m | 5, 10, 20, 30, 50, 100, 200, 300 | 
| Color | - | Yellow, Orange, Black | 
| Suspension | - | Diameter<1800mm, single suspension fin/patch | 
| Diameter≥1800mm, double suspension fins/patches | ||
| Sealing face sleeve | mm | 150-250 | 
| Grommet spacing | mm | 750 | 
| Coupling | - | Zipper/Velcro/Steel ring/Eyelet | 
| Fire resistance | - | DIN4102 B1/EN13501/NFPA701/DIN75200 | 
| Antistatic | Ω | ≤3 x 108 | 
| Packing | - | Pallet | 
| The above values are average for reference, allowing 10% tolerance. Customization is acceptable for all given values. | ||
◈ Used for tunnels and mining with high concentrations of toxic gas.
◈ All ducting and fittings are available in both layflat and spiral as well as oval.
◈ The standard color is black, but other colors can be customized.
◈ Airtight seams and grommets are soldered, resulting in negligible friction loss.
◈ Polyester woven or knit fabric with a PVC coating on both sides.
◈ The flame resistance meets DIN4102 B1/EN13501/NFPA701/DIN75200 standards.
◈ Customization is available for diameters ranging from 200 mm to 3000 mm.
◈ Section lengths can reach 200m, 300m, or even longer when designed specifically for TBM, and lifetimes can range from 5 to 10 years.
				