New Fashion Design for Negative Pressure Air Duct - JULI® Flexible Oval Ventilation Duct – Foresight

New Fashion Design for Negative Pressure Air Duct - JULI® Flexible Oval Ventilation Duct – Foresight


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We always follow the principle "Quality Very first, Prestige Supreme". We have been fully committed to delivering our customers with competitively priced high-quality products and solutions, prompt delivery and experienced services for Exhaust Duct, Helix Ventiallaion Hose, Tunnel Ventilation Tube, With a wide range, good quality, reasonable prices and stylish designs,Our products are widely recognized and trusted by users and can meet continuously changing economic and social needs.
New Fashion Design for Negative Pressure Air Duct - 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:

New Fashion Design for Negative Pressure Air Duct - JULI® Flexible Oval Ventilation Duct – Foresight detail pictures

New Fashion Design for Negative Pressure Air Duct - JULI® Flexible Oval Ventilation Duct – Foresight detail pictures


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High quality Initial,and Buyer Supreme is our guideline to offer the ideal assistance to our shoppers.At present, we are striving our best to become amongst the ideal exporters inside our industry to satisfy shoppers more want for New Fashion Design for Negative Pressure Air Duct - JULI® Flexible Oval Ventilation Duct – Foresight , The product will supply to all over the world, such as: Macedonia, Malta, kazakhstan, Now, we professionally supplies customers with our main merchandise And our business is not only the "buy" and "sell", but also focus on more. We target to be your loyal supplier and long-term cooperator in China. Now, We hope to be the friends with you.
In China, we have many partners, this company is the most satisfying to us, reliable quality and good credit, it is worth appreciation.
5 Stars By Lulu from America - 2018.06.18 19:26
Reasonable price, good attitude of consultation, finally we achieve a win-win situation,a happy cooperation!
5 Stars By Samantha from Nepal - 2017.08.16 13:39
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