OEM manufacturer Underground Ventilation Ducts Manufacturer - JULI® Layflat Ventilation Ducting – Foresight

OEM manufacturer Underground Ventilation Ducts Manufacturer - JULI® Layflat Ventilation Ducting – Foresight


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We pursue the management tenet of "Quality is superior, Service is supreme, Reputation is first", and will sincerely create and share success with all clients for Air Duct Supplier, Helix Ventialtion Duct, Flexible Ducting Underground, We focus on for making superb top quality goods to provide support for our purchasers to ascertain long-term win-win romantic relationship.
OEM manufacturer Underground Ventilation Ducts Manufacturer - 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:

OEM manufacturer Underground Ventilation Ducts Manufacturer - JULI® Layflat Ventilation Ducting – Foresight detail pictures

OEM manufacturer Underground Ventilation Ducts Manufacturer - JULI® Layflat Ventilation Ducting – Foresight detail pictures


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Our company promises all buyers of the first-class products and solutions as well as most satisfying post-sale support. We warmly welcome our regular and new shoppers to join us for OEM manufacturer Underground Ventilation Ducts Manufacturer - JULI® Layflat Ventilation Ducting – Foresight , The product will supply to all over the world, such as: London, Amman, Riyadh, For many years, we now have adhered to the principle of customer oriented, quality based, excellence pursuing, mutual benefit sharing. We hope, with great sincerity and good will, to have the honor to help with your further market.
  • This company has the idea of "better quality, lower processing costs, prices are more reasonable", so they have competitive product quality and price, that's the main reason we chose to cooperate.
    5 Stars By Amelia from El Salvador - 2018.09.19 18:37
    The factory technical staff not only have high level of technology, their English level is also very good, this is a great help to technology communication.
    5 Stars By Kitty from Macedonia - 2018.11.28 16:25
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