Renewable Design for Tunnel Ventilation Ducting - JULI® Accessories & Fittings – Foresight

Renewable Design for Tunnel Ventilation Ducting - JULI® Accessories & Fittings – Foresight


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We are also specializing in improving the things management and QC method in order that we could retain terrific edge inside the fiercely-competitive small business for Road Tunnel Ventilation, Biogas Systems, Underground Ducting, If you are interested in any of our items, please don't hesitate to contact us and take the first step to build up a successful business relationship.
Renewable Design for Tunnel Ventilation Ducting - JULI® Accessories & Fittings – Foresight Detail:

Product Informations

JULI® Accessories & Fittings can be made with PVC flexible fabric, polyester fiber as the base fabric, and coated with 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.

suspension system


1. Single suspension fin

Single suspension fin


2. Dual suspension fin

Double suspension fins


3. Single suspension patch

Single suspension patch


4. Daul suspension patch

Double suspension patches

Coupling system


1. Zipper Coupling

Zipper Coupling


2. Velcro Coupling

Velcro Coupling


3. Eyelet Coupling

Eyelet Coupling


_Zipper_Coupling-removebg-preview

End ring Coupling

 Product Parameters

JULI®  Accessories&Fittings 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.

 Product Feature

◈ Used for turning, reducing, switching, and connecting the main and branch tunnels.
◈ All fittings are available in both layflat and spiral, as well as oval.
◈ Many different fittings in various diameters, configurations, and lengths.
◈ The great flexibility of fittings adapts perfectly to your conditions.
◈ Processing with supplied drawings or samples is acceptable.
◈ Polyester woven or knit fabric with a PVC coating on both sides.
◈ The flame resistance meets DIN4102 B1/EN13501/NFPA701/DIN75200 standards.
◈ Diameters range from 200 mm to 3000 mm. Customization is acceptable for other dimensions.

Product Advantages


Product detail pictures:

Renewable Design for Tunnel Ventilation Ducting - JULI® Accessories & Fittings – Foresight detail pictures


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"Control the standard by the details, show the power by quality". Our organization has strived to establish a highly efficient and stable employees team and explored an effective high-quality command method for Renewable Design for Tunnel Ventilation Ducting - JULI® Accessories & Fittings – Foresight , The product will supply to all over the world, such as: Hyderabad, San Francisco, Morocco, The company has perfect management system and after-sales service system. We devote ourselves to building a pioneer in the filter industry. Our factory is willing to cooperate with different customers domestic and overseas to gain better and better future.
  • Wide range, good quality, reasonable prices and good service, advanced equipment, excellent talents and continuously strengthened technology forces,a nice business partner.
    5 Stars By Martin Tesch from Hamburg - 2017.05.02 18:28
    We are long-term partners, there is no disappointment every time, we hope to maintain this friendship later!
    5 Stars By Dorothy from Nairobi - 2017.07.07 13:00
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