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Renewable Design for Tunnel Ventilation Ducting - JULI® Flexible Oval Ventilation Duct – Foresight

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  • Renewable Design for Tunnel Ventilation Ducting - JULI® Flexible Oval Ventilation Duct – Foresight
  • Renewable Design for Tunnel Ventilation Ducting - JULI® Flexible Oval Ventilation Duct – Foresight

Renewable Design for Tunnel Ventilation Ducting - JULI® Flexible Oval Ventilation Duct – Foresight


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Our advancement depends over the highly developed devices, excellent talents and continually strengthened technology forces for Flexible Duct Reducer, Mine Ventilation Australia, Mining Ventilation Duct, With the eternal goal of "continuous quality improvement, customer satisfaction", we are sure that our product quality is stable and reliable and our products are best-selling at home and abroad.
Renewable Design for Tunnel Ventilation Ducting - 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


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® 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)  1
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.

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JULI Flexible Oval Ventilation Duct

Product Advantages

Product detail pictures:

Renewable Design for Tunnel Ventilation Ducting - JULI® Flexible Oval Ventilation Duct – Foresight detail pictures

Renewable Design for Tunnel Ventilation Ducting - JULI® Flexible Oval Ventilation Duct – Foresight detail pictures

Related Product Guide:
Our pursuit and enterprise aim would be to "Always fulfill our buyer requirements". We carry on to acquire and layout excellent quality items for the two our old and new clients and realize a win-win prospect for our shoppers in addition as us for Renewable Design for Tunnel Ventilation Ducting - JULI® Flexible Oval Ventilation Duct – Foresight , The product will supply to all over the world, such as: Denmark, Holland, Florida, We're your reliable partner in the international markets of our products and solutions. We focus on providing service for our clients as a key element in strengthening our long-term relationships. The continual availability of high grade solutions in combination with our excellent pre- and after-sales service ensures strong competitiveness in an increasingly globalized market. We're willing to cooperate with business friends from at home and abroad, to create a great future. Welcome to Visit our factory. Looking forward to have win-win cooperation with you.
    • Goods just received, we are very satisfied, a very good supplier, hope to make persistent efforts to do better.
    5 Stars By Chloe from Swiss - 2018.12.30 10:21
    The company keeps to the operation concept "scientific management, high quality and efficiency primacy, customer supreme", we have always maintained business cooperation. Work with you,we feel easy!
    5 Stars By Marina from Bangladesh - 2018.12.11 14:13
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