2022 China New Design Tunnel Air Ventilation - JULI® Flexible Oval Ventilation Duct – Foresight

2022 China New Design Tunnel Air Ventilation - JULI® Flexible Oval Ventilation Duct – Foresight


Product Detail

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Our company insists all along the quality policy of "product good quality is base of enterprise survival; buyer fulfillment will be the staring point and ending of an company; persistent improvement is eternal pursuit of staff" and also the consistent purpose of "reputation very first, shopper first" for Ventilation Duct, Flexible Vent Pipe, Flexible Duct Hose, The continual availability of significant grade merchandise in combination with our excellent pre- and after-sales support ensures strong competitiveness in an increasingly globalized market.
2022 China New Design Tunnel Air Ventilation - 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:

2022 China New Design Tunnel Air Ventilation - JULI® Flexible Oval Ventilation Duct – Foresight detail pictures

2022 China New Design Tunnel Air Ventilation - JULI® Flexible Oval Ventilation Duct – Foresight detail pictures


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We insist on offering high-quality creation with superior business enterprise concept, honest revenue plus the greatest and fast service. it will bring you not only the high quality solution and huge profit, but essentially the most significant is usually to occupy the endless market for 2022 China New Design Tunnel Air Ventilation - JULI® Flexible Oval Ventilation Duct – Foresight , The product will supply to all over the world, such as: Haiti, Saudi Arabia, Luxembourg, We adopted technique and quality system management, based on "customer orientated, reputation first, mutual benefit, develop with joint efforts", welcome friends to communicate and cooperate from all over the world.
  • Staff is skilled, well-equipped, process is specification, products meet the requirements and delivery is guaranteed, a best partner!
    5 Stars By Dee Lopez from Colombia - 2017.07.07 13:00
    After the signing of the contract, we received satisfactory goods in a short term, this is a commendable manufacturer.
    5 Stars By Ophelia from Ghana - 2018.06.26 19:27
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