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Manufacturer of Tunnel Ventilation Standards - JULI® Flexible Oval Ventilation Duct – Foresight Detail:
Product Informations
JULI® oval ventilation duct is made of PVC flexible fabric with polyester fiber as the base fabric and is coated with a PVC membrane on both sides. Polyester fiber can be chosen for different user requirements and environments. The PVC membrane is fire resistant with DIN4102 B1, NFPA701, EN13501, DIN75200, and antistatic properties; all are accompanied by an SGS test result.
JULI® oval ventilation duct is made with two suspension fins outside. The angle can be customized according to the customer’s requirement. There are also two suspension fins connected with carabiner hooks and steel rope inside the duct to keep the oval shape.
suspension system

Single suspension fin

Double suspension fins

Single suspension patch

Double suspension patches
Coupling system

Zipper Coupling

Velcro Coupling

Eyelet Coupling

End ring Coupling
Product Parameters
| JULI® Oval Ventilation Ducting Technical Specification |
| Item |
Unit |
|
| Diameter |
mm |
450-1650 |
| Section length |
m |
5, 10, 20, 30, 50, 100, 200, 300 |
| Color |
- |
Yellow, Orange, Black |
| Suspension |
- |
Double susopenison 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 |
| Diameter(mm) |
Dimension(mm) |
 |
| A |
B |
| 450 |
650 |
350 |
| 600 |
850 |
450 |
| 750 |
1100 |
550 |
| 800 |
1150 |
600 |
| 900 |
1300 |
700 |
| 1000 |
1400 |
750 |
| 1050 |
1500 |
800 |
| 1200 |
1700 |
900 |
| 1350 |
1950 |
1050 |
| 1500 |
2150 |
1150 |
| 1650 |
2300 |
1200 |
| The above values are average for reference, allowing 10% tolerance. Customization is acceptable for all given values. |
Product Feature
◈ Used for low headroom or small mine tunnels with a limited height.
◈ All ducting and fittings are available in both layflat and spiral.
◈ Increased airflow by maximizing duct space.
◈ Welding inside suspension fins reduce air leakage rates.
◈ Polyester woven or knit fabric with a PVC coating on both sides.
◈ The flame resistance meets DIN4102 B1/EN13501/NFPA701/DIN75200 standards.
◈ Diameters ranging from 450 to 1650mm, other dimensions are amenable to customization.


Product Advantages
Product detail pictures:
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We always continually provide you with the most conscientious customer service, and the widest variety of designs and styles with finest materials. These efforts include the availability of customized designs with speed and dispatch for Manufacturer of Tunnel Ventilation Standards - JULI® Flexible Oval Ventilation Duct – Foresight , The product will supply to all over the world, such as: Sydney, Wellington, Somalia, We have developed large markets in many countries, such as Europe and the United States, Eastern Europe and Eastern Asia. Meanwhile with the powerful predominance in persons with ability, strict production management and business concept.we constantly carry on self-innovation, technological innovation, managing innovation and business concept innovation. To follow the world markets fashion, new products are kept on researching and providing to guarantee our competitive advantage in styles, quality, price and service.