High Quality for Underground Ventilation Duct Yellow - JULI® Layflat Ventilation Ducting – Foresight

High Quality for Underground Ventilation Duct Yellow - JULI® Layflat Ventilation Ducting – Foresight


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In the past few years, our company absorbed and digested advanced technologies both at home and abroad. Meanwhile, our company staffs a team of experts devoted to the development of Test Load Water Bag, Mine Vent Sleeve, Flexible Ducting Underground, Our hugely specialized process eliminates the component failure and offers our consumers unvarying high quality, allowing us to control cost, plan capacity and maintain consistent on time delivery.
High Quality for Underground Ventilation Duct Yellow - JULI® Layflat Ventilation Ducting – Foresight Detail:

Product Informations

Foresight conducts independent research and development of high-quality PVC flexible ventilation duct membrane compositions that can be customized based on season, application, and performance to provide product quality stability, cost-effectiveness, extended service life, and environmental adaptability.

The fire resistance of the JULI® tunnel 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.

The automatic production line independently developed by Foresight can realize the production of duct sections with lengths of 100 m, 200 m, and 300 m, including welding suspension fin/patch, welding duct body, folding, etc., which greatly improves the production efficiency and reduces the air leakage rate of the tunnel ventilation duct.

suspension system


1. Single suspension fin

Single suspension fin


2. Dual suspension fin

Two suspension fins


3. Single suspension patch

Single suspension patch


4. Daul suspension patch

Two 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® Layflat 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, two 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 averages for reference, allowing 10% tolerance. Customization is acceptable for all given values.

 Product Feature

◈ For positive pressure applications, layflat ventilation ducts are ideal.
◈ All ducting and fittings are available in spiral and oval.
◈ Airtight seams and grommets are soldered, resulting in negligible friction loss.
◈ Polyester woven or knit fabric with PVC coating on both sides.
◈ The flame resistance meets DIN4102 B1/EN13501/NFPA701/DIN75200 standards.
◈ Customization is available for diameters ranging from 300 mm to 3000 mm.
◈ Standard lengths of 10 m, 20 m, 50 m, 100 m…developed specifically for TBM. Section lengths can reach 200 m, 300 m, or even longer, and lifetimes can range from 5 to 10 years.

JULI® Layflat Ventilation Ducting

Product Advantages

Application


Product detail pictures:

High Quality for Underground Ventilation Duct Yellow - JULI® Layflat Ventilation Ducting – Foresight detail pictures

High Quality for Underground Ventilation Duct Yellow - JULI® Layflat Ventilation Ducting – Foresight detail pictures


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We not only will try our greatest to present fantastic expert services to each purchaser, but also are ready to receive any suggestion offered by our prospects for High Quality for Underground Ventilation Duct Yellow - JULI® Layflat Ventilation Ducting – Foresight , The product will supply to all over the world, such as: Sacramento, Ukraine, Bandung, With its rich manufacturing experience, high-quality products, and perfect after-sale service, the company has gained good reputation and has become one of the famous enterprise specialized in manufacturing series.We sincerely hope to establish business relation with you and pursue mutual benefit.
  • This company can be well to meet our needs on product quantity and delivery time, so we always choose them when we have procurement requirements.
    5 Stars By Hazel from French - 2018.04.25 16:46
    Perfect services, quality products and competitive prices, we have work many times, every time is delighted, wish continue to maintain!
    5 Stars By David from Argentina - 2018.06.12 16:22
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