Ecvv Trade
Newstar Plastic Industry Co., Ltd.

China Manufacturer with main products: Flexible Ventilation Duct, Ventilation Duct, Ventilation Tube, Flexible Duct, Mine and Tunnel Airduct, Air Forcing Duct, Spiral Duct,...

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mine ventilation duct ( concertina)


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Specifications

The spiral ducting can be used as elbows in positive pressure application and in negative pressure application, where it is necessary to exhaust air, toxic gases, dusts and other industrial pollutants out.
 
Our spiral ducting are made of the PVC-coated fabric with spring steel wire helix reinforced. They are extremely flexible (can be compressed) and have good suction effect. The pitch can be 150mm, 200mm, 300mm and the diameter of wire can be from 5mm to 10mm. The diameter of our spiral ducting can be from 10 inches to 70 inches. Our standard section length is 5m. The coupling type can be steel ring, zipper or Velcro. We can also customize to make special specifications as our customers request.
 
Features:
1) high tenacity ployester base fabric/ scrim with PVC coated on both sides
2) long-time and stable anti-static. ( surface resistivity: less than 100 mega ohm)
3) flame retardant ( can meet NFPA-701, B1, B2 or M2 standard)
4) superior broken tensile strength and tear strength.
5) extremely low air leakage rate in a hundred meter
6) extremely low drag coefficient in a hundred meter
7) endure the temperature variation
8) more fold-resistant and extremely flexible
9) easier in repairing
10) pro-environmental, do not have any unpleasant odor

Service Process

Service Guarantee

  • Free Service Charge

    ECVV doesn't charge any service fee to Buyers for buying this product.

  • ECVV Supply

    ECVV is responsible for supply, and provides product quality inspection, fund supervision and supply chain services.

  • Product Quality Commitment

    ECVV China Sourcing Agent will assess the reputation and supply ability of the factory and conduct field trips to select the high-quality Chinese factories for buyers.

  • Deposit Service Commitments

    In order to improve the quality of service, ECVV will charge for a 100CNY deposit for the agent purchasing order, and the deposit will be part of subsequent purchasing costs.

    After paying a deposit, if the purchasing order is not completed because of unsatisfied ECVV services, ECVV will refund your deposit.

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