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Fire resistance Semi Rigid Flexible Duct 8 inch semi-rigid flexible duct

Categories Semi rigid flexible duct
Brand Name: DEC
Model Number: DEC-SA
Certification: ISO9001:2015
Place of Origin: CHINA
MOQ: 500 meter
Price: USD0.5-1.5/meter
Payment Terms: Western Union, T/T, MoneyGram, L/C
Supply Ability: 500 meter /day
Delivery Time: 7 days after receiving your payment
Packaging Details: All those semi rigid flexible duct can be compressed into a single carton box
Product: Semi rigid flexible duct
Diameter: 76mm~508mm
Fire resistance: Non combustible
Air Velocity: 30m/s
Work pressure: 2500Pa
Length: 3m, Max.6m
Usage: Air conditioning air duct,kitchen ventilation
Packing: Compressed into a single carton box
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    • Product Details
    • Company Profile

    Fire resistance Semi Rigid Flexible Duct 8 inch semi-rigid flexible duct

    Fire resistance Semi Rigid Flexible Duct 8 inch semi-rigid flexible duct

    Features Benefits :
    Totally non-combustible Maximum operating temperature 250°C
    Can be bent into any configuration No need for elbows
    Near zero permeability and leakage Reduces energy loss
    Will not sag between 6 foot supports Easy installation

    Semi rigid flexible duct

    This semi rigid aluminum ducting is an all metal flexible duct that is constructed entirely without the use of adhesives. The lock mechanical joint makes an air tight seam, while the circumferential corrugations provide excellent strength and flexibility.DEC aluminum ducting provides an ideal solution to the problems inherent in most cloth flexible duct.

    Semi rigid insulated aluminum flex duct has much lower pressure loss than conventional cloth ducts due to the small but consistent corrugations that provide both strength and flexibility.

    Semi rigid flexible duct Specification

    1.Temperature range: -30℃ to +250℃
    2.Operating pressure: Max.2500 Pa
    3.Opearting air velocity: Max 30m/s
    4.Bending radius: Min 1.5xD
    5.Diameter range: 76mm-508mm
    6.Standard length: 3m

    7.Reaction to fire: No combustible

    8.Packing: Single cardboard box

    Product NameSemi Rigid Insulated Flexible Duct for HVAC system
    MaterialAluminum alloy
    Bending Radius1.5xD
    Fire ResistanceClass A2 (Max)
    Temperature Range-30℃/+250℃
    Operating Pressure30m/s
    Inner Diameter50mm-650mm (2"-25")
    Compress Ratio10:3
    Maximum Air Velocity30m/s
    ApplicationHVAC system/Industrial Ventilation/Residential Ventilation/Kitchen Ventilation/dryer

    This semi rigid aluminum flexible duct is made from dead soft pure aluminum sheet, as the material has natural vibration damping characteristics, the installed duct will not transmit vibration.

    Strong, highly puncture resistant

    Self supporting, eliminates hangers

    Corrosion resistant

    Complies with all applicable standards

    Light weight



    Easily installed

    Company Introduction

    By using a full set of automated production line of nerthland Group and its product specifications and manufacturing techniques, manufacture nine major species ventilation flexible ducts, such as Aluminum foil duct,Combined PVC and AL foil duct,Insulated duct and acoustical and thermal ducts applying for ventilating and exhausting systems in high, medium or low pressures, or erosive, high-temperature, heat-insulation environments.

    For more than twenty years of development in Asia, now our company focus on supplying high quality flexible ducts to a variety of industries such as building, nuclear energy, military, electron, space transportation, machinery, agriculture, steel refinery in China or overseas market.

    Wherever there is gas transportation, there will appear our products. Dec Beijing have already become one of the leaders in domestic construction ventilating and industrial flexible ducts.


    1.Are you manufacturer or trade company?

    we are flexible duct professional manufacturer.specilized in this field more than 20 years.

    2.How could i trust you?

    If have time come Guangzhou or Beijing,i am glad to receive you.

    3.What product can you provide?

    Any flexible air duct.

    4.Have you attended exhibition before?

    Yes,many,but almost china exhibition.

    Quality Fire resistance Semi Rigid Flexible Duct 8 inch semi-rigid flexible duct for sale
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