100% Original Double-Membrane Biogas - JULI® Spiral Ventilation Ducting – Foresight

100% Original Double-Membrane Biogas - JULI® Spiral Ventilation Ducting – Foresight


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We've been proud with the significant shopper fulfillment and wide acceptance due to our persistent pursuit of top of the range both of those on solution and repair for Underground Mine Ventilation, Air Duct Accessories, Ventilation Installation, We always stick to the principle of "Integrity, Efficiency, Innovation and Win-Win business". Welcome to visit our website and do not hesitate to communicate with us. Are you ready? ? ? Let us go!!!
100% Original Double-Membrane Biogas - 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:

100% Original Double-Membrane Biogas - JULI® Spiral Ventilation Ducting – Foresight detail pictures

100% Original Double-Membrane Biogas - JULI® Spiral Ventilation Ducting – Foresight detail pictures


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We take "customer-friendly, quality-oriented, integrative, innovative" as objectives. "Truth and honesty" is our administration ideal for 100% Original Double-Membrane Biogas - JULI® Spiral Ventilation Ducting – Foresight , The product will supply to all over the world, such as: Kyrgyzstan, Ghana, Birmingham, Abiding by our motto of "Hold well the quality and services, Customers Satisfaction", So we give our clients with high quality products and solutions and excellent service. Be sure to feel free to contact us for further information.
It can be said that this is a best producer we encountered in China in this industry, we feel lucky to work with so excellent manufacturer.
5 Stars By Edith from Australia - 2017.12.09 14:01
As an international trading company, we have numerous partners, but about your company, I just want to say, you are really good, wide range, good quality, reasonable prices, warm and thoughtful service, advanced technology and equipment and workers have professional training, feedback and product update is timely, in short, this is a very pleasant cooperation, and we look forward to the next cooperation!
5 Stars By Ruby from Cologne - 2018.12.30 10:21
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