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AsianatFlex Flexible Ducting, Spiral Ducting or Simi-rigid Duct. It is used for both positive and negative pressure application of underground tunnel and mining projects. It is produced based on positive flow ducting, it installs hard-drawn steel or spring steel as frame on the lay flat ducting to support it withstand high pressure. The diameter can be customized from 150 mm to 2,000 mm and length for every piece is 1 m to 20 m. MSHA approved.

Kind of connection can be customized: Zipper, Steel Ring, Eyelet and Velcro.

Five different types of PVC coated fabric to meet different models of ventilation fans and the fabrics can be flame retardant and anti-static. Also other fabric specification can be customized according to clients' requirement.

Quality standard abides by GB/T 9900-2008, NFPA 701, MA and SGS.

Characteristics:

1. High strength, high
2. Fire resistance, high temperature resistant, acid resistant.
3. Resistant to tearing stronger and longer lasting than a sewn seam.
4. Tough, lightweight and easy for handling.
5. High rate of broken tensile strength and tear strength, durable and safe.   
6. Diameter:600 mm~3200 mm, standard Length: 5 m~200 m.
7. Environment-friendly product, dust-free& non odor.
8. Applicable temperature:   -30 ~ +80 C.
9. Connection: Zipper, End Coil, Eyelet, Velcro.
10. Standard color:Yellow, Black, Green.

Feature and Application:

1. Large air flow, long distance air supply, low air leakage, low air resistance, long service life, easy installation, safe and environmental protection, great value.
2. Usage: Ventilation, Gas hood, subway, semi-conductor, factory laboratory, building (office, hospital)