2022 Good Quality Underground Ventilation Pipe - JULI® Flexible Oval Ventilation Duct – Foresight

2022 Good Quality Underground Ventilation Pipe - JULI® Flexible Oval Ventilation Duct – Foresight


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Which has a positive and progressive attitude to customer's desire, our corporation constantly improves our merchandise quality to satisfy the desires of consumers and further focuses on safety, reliability, environmental demands, and innovation of Underground Vent Tube, Vent Flex Pipe, Tunnel Air Ventilation, Please sense no cost to speak to us anytime. We are going to reply you when we receive your inquiries. Remember to note that samples are available before we start our business enterprise.
2022 Good Quality Underground Ventilation Pipe - 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 Good Quality Underground Ventilation Pipe - JULI® Flexible Oval Ventilation Duct – Foresight detail pictures

2022 Good Quality Underground Ventilation Pipe - JULI® Flexible Oval Ventilation Duct – Foresight detail pictures


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To constantly improve the management system by virtue of the rule of "sincerely, good faith and quality are the base of enterprise development", we widely absorb the essence of related products internationally, and constantly develop new products to meet the demands of customers for 2022 Good Quality Underground Ventilation Pipe - JULI® Flexible Oval Ventilation Duct – Foresight , The product will supply to all over the world, such as: Hanover, panama, South Africa, Our continual availability of high grade products in combination with our excellent pre-sale and after-sales service ensures strong competitiveness in an increasingly globalized market. welcome new and old customers from all walks of life to contact us for future business relationships and mutual success!
The factory technical staff gave us a lot of good advice in the cooperation process, this is very good, we are very grateful.
5 Stars By Eleanore from Libya - 2018.11.22 12:28
Company director has very rich management experience and strict attitude, sales staff are warm and cheerful, technical staff are professional and responsible,so we have no worry about product,a nice manufacturer.
5 Stars By Joseph from Croatia - 2018.12.11 11:26
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