JULII^® Layflat ventilation ducting

We insist on offering high quality production with good business concept, honest sales and the best and fast service. it will bring you not only the high quality product and huge profit, but the most significant is to occupy the endless market for China Supplier China SGS Certification Flexible Tunnel Ventilation Air Duct for Underground Project, We have extensive goods supply and the price is our advantage. Welcome to inquire about our products.
We insist on offering high quality production with good business concept, honest sales and the best and fast service. it will bring you not only the high quality product and huge profit, but the most significant is to occupy the endless market for Air Duct, China Flexible Air Duct, With a fully integrated operation system, our company has won a good fame for our high quality products, reasonable prices and good services. Meanwhile, we have established a strict quality management system conducted in material incoming, processing and delivery. Abiding by the principle of “Credit first and customer supremacy”, we sincerely welcome clients from home and abroad to cooperate with us and advance together to create a brilliant future.

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

Single suspension fin

Two suspension fins

Single suspension patch

Two suspension patches

Coupling system

Zipper Coupling

Velcro Coupling

Eyelet Coupling

End ring Coupling

 Product Parameters

 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.

Product Advantages

Application

We insist on offering high quality production with good business concept, honest sales and the best and fast service. it will bring you not only the high quality product and huge profit, but the most significant is to occupy the endless market for China Supplier China SGS Certification Flexible Tunnel Ventilation Air Duct for Underground Project, We have extensive goods supply and the price is our advantage. Welcome to inquire about our products.
China Supplier China Flexible Air Duct, Air Duct, With a fully integrated operation system, our company has won a good fame for our high quality products, reasonable prices and good services. Meanwhile, we have established a strict quality management system conducted in material incoming, processing and delivery. Abiding by the principle of “Credit first and customer supremacy”, we sincerely welcome clients from home and abroad to cooperate with us and advance together to create a brilliant future.