Hot Selling for Underground Ventilation Duct - JULI® Spiral Ventilation Ducting – Foresight

Hot Selling for Underground Ventilation Duct - JULI® Spiral Ventilation Ducting – Foresight


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To be a result of ours specialty and repair consciousness, our corporation has won an excellent reputation amongst customers all around the entire world for Flexible Blower Duct, Water Storage Tank, Pvc Air Duct, We will supply best quality, the most market competitive price, for every new and old customers with the most perfect green services.
Hot Selling for Underground Ventilation Duct - JULI® Spiral Ventilation Ducting – Foresight Detail:

Product Informations

JULI® spiral ventilation duct is made of manganese steel with good elasticity as the reinforced steel wire and can be used under positive pressure for air blowing as an elbow in the underground. It is made by a special welding machine in Foresight with a good appearance and excellent folding performance. During ventilation, the stress is smooth and uniform, and it can bear greater pressure without the danger of blowing. The JULI® spiral ventilation duct can also be used for negative pressure and exhausting air from a tunnel inside. The reinforced steel wire is made of cold-drawn steel, which can support high air extraction pressure to meet the needs of customers.

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.

 Product Parameters

JULI®  Spiral Ventilation Ducting Technical Specification
Item Unit Value
Diameter mm 300-2500
Section length m 5, 10
Color - Yellow, Orange, Black
Suspension - Diameter<1800mm, single suspension ring
Diameter≥1800mm, double suspension ring
Suspenion ring spacing mm 200-600
Steel ring diameter mm 5-10
Standard pitch mm 100-300
Sealing face sleeve mm 150-250
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

◈ Designed for both high negative and positive pressure and elbow use.
◈ Spiral reinforced by spring steel wire/individual steel ring (end ring), seams and PVC profile welded airtight, smooth inner surface, low friction loss.
◈ All ducting and fittings are available in an oval shape.
◈ Customization is possible, with a diameter range of 400 mm to 2100 mm.
◈ Flame resistance conforms to EN13501/DIN4102 B1/NFPA701/DIN75200.
◈ Standard length, 5 m, 10 m, 15m or 20m.
◈ The antistatic feature (3×108Ω) is optional. The newly developed water-based material that is used for antistatic surface treatment is an environmentally protective material without VOC emission in processing and use, and is also healthy for workers. It makes the antistatic value stabilize at 3×106Ω.

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Product detail pictures:

Hot Selling for Underground Ventilation Duct - JULI® Spiral Ventilation Ducting – Foresight detail pictures

Hot Selling for Underground Ventilation Duct - JULI® Spiral Ventilation Ducting – Foresight detail pictures


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go on to boost, to be certain item quality in line with market and buyer standard demands. Our firm has a excellent assurance procedure happen to be established for Hot Selling for Underground Ventilation Duct - JULI® Spiral Ventilation Ducting – Foresight , The product will supply to all over the world, such as: Hungary, Algeria, Colombia, We mainly sell in wholesale, with the most popular and easy ways of making payment, which are paying via Money Gram, Western Union, Bank Transfer and Paypal. For any further talk, just feel free to contact our salesmen, who are really good and knowledgeable about our prodcuts.
It is really lucky to meet such a good supplier, this is our most satisfied cooperation, I think we will work again!
5 Stars By Lee from Sri Lanka - 2018.05.15 10:52
After the signing of the contract, we received satisfactory goods in a short term, this is a commendable manufacturer.
5 Stars By Hannah from Turin - 2018.06.30 17:29
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