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PVC-EVD PVC Extendable Ventilation Duct

This product is a flexible telescopic ventilation hose with high-strength nylon canvas base, PVC surface coating and built-in spiral steel wire frame. It combines flexibility, wear resistance and corrosion resistance, can be freely stretched and folded, and quickly connects to fans and ventilation ducts, widely suitable for temporary ventilation, waste gas extraction and engineering air supply scenarios.

    parameters

    Model Overall Length
    (m )
    Rear Ring
    (mm)
    Bell Mouth
    (mm)
    8" 5m/10m 200 280
    10" 5m/10m 250 330
    12" 5m/10m 300 380
    14" 5m/10m 350 430
    16" 5m/10m 400 480
    18" 5m/10m 450 530
    20" 5m/10m 500 580
    24" 5m/10m 600 680
    28" 5m/10m 700 780
    32" 5m/10m 800 880
    40" 5m/10m 1000 1080

    CHARACTERISTICS

    1. 1.Composite material structure: Nylon canvas base + PVC coating, built-in galvanized spiral steel wire support frame, flexible and pressure-resistant tube body, not easy to collapse and deform.
    2. 2.reely telescopic & foldable: Axially stretchable with long extended length and small contracted volume, convenient for transportation, handling and storage.
    3. 3.Weather & corrosion resistance: PVC coating is waterproof, moisture-proof and resistant to mild acid and alkali, adaptable to humid, dusty and other complex working conditions.
    4. 4.Quick connection installation: Standard round diameter at both ends, can be quickly locked and connected to fans and ducts with metal hose clamps, with good sealing performance.

    Applicable scenarios

    • · Engineering construction ventilation: Temporary air supply and ventilation for tunnels, mines, underground works and confined spaces.
    • · Waste gas & dust extraction: Extraction and discharge of welding fume, paint exhaust, industrial dust and oil fume.
    • · Flexible equipment connection: Flexible duct connection for industrial fans, dust collectors, drying systems and exhaust equipment.
    • · Temporary venue ventilation: Temporary ventilation for large venues, warehouses, greenhouses and workshops.

    Advantages

    1. 1.Durable & robust: PVC coated nylon fabric is wear and tear resistant; steel frame resists negative pressure, not easy to damage for long-term and reusable use.
    2. 2.Efficient deployment: Telescopic design for ready-to-use, no complex installation required, quickly build temporary ventilation systems.
    3. 3.Cost-saving: Lower procurement cost than rigid ducts; greatly saves storage and transportation space after contraction, reduces logistics costs.
    4. 4.Strong universality: Standard round diameter fits most axial fans, centrifugal fans and ventilation ducts, compatible with both new and old systems.
    5. 5.Flexible use: Bendable and stretchable, can be arranged around obstacles, suitable for narrow and irregular installation spaces.