Duct expansion Joint

  • High-Performance Round Duct Expansion Joint

    High-Performance Round Duct Expansion Joint

    1. Premium circular round rubber expansion joint engineered for low-pressure gas pipelines and air blower networks.
    2. Exceptional vibration isolation targeting 10Hz-100Hz frequency range from fans, blowers, and compressor equipment.
    3. Multi-directional movement compensation: axial compression 50mm, extension 25mm, lateral shear, and angular rotation.
    4. Artisan hand-wrapped bias-ply tire cord construction (45-54.7 degrees) far superior to mass-produced molded alternatives.
    5. Chemical resistant inner liner options: Chlorobutyl standard, FKM/Viton for acid service up to 204°C, EPDM, Neoprene, Nitrile.
    6. Massive diameter range DN100-DN4000 (4″-160″) with zero leakage integral full-face rubber flange design.
    7. Vacuum service option with integrated solid steel wire helix prevents deformation and collapse.
    8. Ideal for FD/ID fans, FGD systems, SCR units, cement plant ducts, steel mill extraction, and HVAC ventilation.

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  • Rectangular Rubber Expansion Joint

    Rectangular Rubber Expansion Joint

    1. Specialized rectangular rubber expansion joint engineered for industrial ducting networks requiring non-circular flexible connections.
    2. Hand-wrapped multi-ply synthetic tire cord construction delivers maximum structural integrity especially at corner zones.
    3. Integral rubber body and full-face flange design provides 100% leak-proof performance without auxiliary gaskets required.
    4. Superior acoustic damping and vibration isolation outperforms metallic bellows in reducing fan-induced noise transmission.
    5. Low stiffness rubber bellows transmits minimal reaction forces protecting duct anchors, supports, and equipment flanges.
    6. Fully customizable rectangular and square profiles to match any duct cross-section dimension — no standard size limitations.
    7. Wide elastomer selection: Chlorobutyl standard, EPDM weather/steam, FKM Viton acid-resistant up to +204°C.
    8. Ideal for HVAC ducts, dust extraction systems, FGD desulfurization, cement kiln exhaust, steel mill fume extraction, tunnel ventilation.

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