It is perfect products for absorbing noise and insulating. The flexible duct is twined and composited by aluminum-foil composited membrane, glass cloth and steel wire, it has excellent flame resistance.

Our Aluminum-foil heat insulation ventilation duct is mainly used in central Air-Conditioning and Ventilating Systems of high voltage, medium voltage and low voltage, inner pipe is aluminum foil, and the surface is surrounded by environmental glass wool with thickness 25mm, 24kg/cubic meter, surface's dampproof is wrapped by PAP foil, this heat insulation ventilation duct has many virtues such as high pressure assistance, fine thermal insulation, high flexibility, easy installation.

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