System 4625Insulated Flexible Air Duct

"Ultra 10" Core and Black Polyethylene Vapor Barrier flexible air duct.

  • SYSTEM 4625 is a very versatile air duct product capable of performing in a multitude of low to high-pressure residential or commercial HVAC applications. SYSTEM 4625 is well suited for main trunk lines, supply and return lines, connecting lines, as well as runs to diffusers and room registers. As Class 1 air ducts, there are no associated limitations for installed length unless limited by a code body. System 4625 is constructed around Anco's "ULTRA 10" core. The core is wrapped with a thick blanket of thermally certified energy saving insulation. A protective vapor barrier of seamless black polyethylene then covers the core and the insulation. This provides you with a Class 1 Air Duct Material with Certified Thermal R-Values.

    Features

    • Sizes 4", 5", 6", 7", 8", 9", 10", 12", 14", 16", 18" and 20" diameters.
    • 25' lengths are standard
    • Packaged in either corrugated boxes or poly bags

  • Performance Data

    • Surface Burning Characteristics:
      Flame Spread: Less than 25;
      Smoke Developed: Less than 50
    • Code Approvals: This product meets or exceeds the requirements of most federal, state, and local codes.
    • UL Rated Pressure:
      4"-20" - Maximum 10" W.C. positive.
      4"-10" Diameters: 1" W.C. negative;
      12"-20" Diameters: 1/2" W.C. Negative Although rated higher, we recommend maximum operating pressures at around 6" W.C. Positive
    • UL Rated Maximum Air Velocity: 4000 FPM
    • UL Rated Operating Temperature: -0°F up to 200°F, -18°C up to 93°C.
    • Available with heavier duty vapor barrier for outdoor installations (4625UVR).
    • Vapor Barrier Permeance Rating: 0.1 (ASTM E96 Method "A")

    Downloads

« Back to Flex Systems Mail icon Contact Us about System 4625