Flame Retardant Flexible Ventilation Duct 700 g/m² for Mining
This flame retardant flexible ventilation duct is engineered for demanding underground mining environments. Constructed with 700 g/m² PVC coated fabric, it offers high tensile strength and tear resistance, ensuring reliable airflow in critical ventilation systems. Certified to ATEX and NFPA 701 standards, it meets rigorous safety requirements for explosive atmospheres.
Key Selling Points
- ATEX Certified: Complies with 2014/34/EU for use in potentially explosive atmospheres (source: ATEX certificate).
- High Tensile Strength: Withstands up to 4200 N, ensuring durability in high-pressure ventilation systems (source: product parameters).
- Flame Retardant: Meets NFPA 701:2015 and DIN 4102 B2 standards for fire safety (source: selling points).
- Seamless Construction: One-piece fish-back welding technology minimizes air leakage (source: manufacturing process).
- Customizable Options: Available diameters from 200mm to 3200mm and lengths up to 300m (source: parameters).
Technical Specifications
| Diameter | 200 mm – 3200 mm |
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| Section Length | 1 m – 300 m |
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| Tensile Strength | 1,000 N – 4,200 N |
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| Fabric Weight | 300 gsm – 2000 gsm (700 g/m² standard) |
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| Performance | FR or FRAS |
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| Connections | Zipper / Velcro / Steel Ring / Eyelets |
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Models and Options
Available in various diameters and lengths, including standard sizes like Φ760mm×10m, Φ1015mm×10m, Φ1400mm×10m, Φ1600mm×10m, and Φ2800mm×100m. Custom dimensions are also available upon request.
Materials and Structure
Made from PVC coated fabric, which provides excellent durability and resistance to harsh underground conditions. The seamless one-piece construction ensures low friction loss and easy installation.
Applications
Specifically designed for underground engineering projects such as mines, high-speed rail tunnels, subways, highways, hydropower stations, and rock caves. Ideal for forced ventilation, hazardous gas dilution, and dust extraction in mining operations.
Case Study
Buriticá Gold Mine, Colombia
Supplied 20 km per year of 700 g/m² flame retardant ducts to a global tier-1 mining conglomerate and EPC contractor for primary forced ventilation and hazardous gas dilution. The ducts achieved zero defects and continuous operation, meeting international safety standards (source: case 1525).
FAQ
What is the MOQ?
Flexible MOQ terms: no rigid quantity restrictions for standard stock products; trial orders have zero MOQ; custom non-standard fabrics negotiable based on raw material batch sizes.
What payment terms are available?
Standard 30/70 split or customized schedules aligned with PO requirements; volume-based tiered pricing and long-term framework pricing available.
How is delivery handled?
We offer FOB, CIF, and DAP (Door-to-Mine-Site) delivery terms, with DAP recommended for remote mining locations.
Can we get samples for testing?
Yes, trial and prototype orders have zero MOQ, allowing you to evaluate the product before committing to larger quantities.
What certifications do your products have?
ISO 9001, ATEX, CE, CNMA, and SGS test reports, including DIN 4102 B2 and NFPA 701.
Inquiry Information
Contact: Autumn Cui | Tel: +86-18251952515 | Email: autumn@js-sulong.com | Website: www.js-sulong.com
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