Factory Free sample Flexible Material For Ventilation Duct - JULI® Spiral Ventilation Ducting – Foresight

Factory Free sample Flexible Material For Ventilation Duct - JULI® Spiral Ventilation Ducting – Foresight


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We always stick to the principle "Quality First, Prestige Supreme". We are fully committed to providing our clients with competitively priced quality products, prompt delivery and professional service for Tunnel Vent, Ventilation And Ducting, Layfalt Ventilation Ducting, Our products are widely recognized and trusted by users and can meet continuously changing economic and social needs.
Factory Free sample Flexible Material For 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:

Factory Free sample Flexible Material For Ventilation Duct - JULI® Spiral Ventilation Ducting – Foresight detail pictures


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We have many excellent staff members good at marketing, QC, and dealing with kinds of troublesome problem in the production process for Factory Free sample Flexible Material For Ventilation Duct - JULI® Spiral Ventilation Ducting – Foresight , The product will supply to all over the world, such as: Borussia Dortmund, USA, Palestine, To let customers be more confident in us and get the most comfortable service, we run our company with honesty, sincerity and best quality . We firmly believe that it is our pleasure to help customers to run their business more successfully, and that our professional advice and service can lead to more suitable choice for the customers.
The factory technical staff not only have high level of technology, their English level is also very good, this is a great help to technology communication.
5 Stars By Sara from Netherlands - 2018.12.11 14:13
The customer service staff's answer is very meticulous, the most important is that the product quality is very good, and packaged carefully, shipped quickly!
5 Stars By Dee Lopez from Iran - 2018.09.29 17:23
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