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GI Gravity Louver Dampers

GI gravity louver damper

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Gravity Louver Dampers are designed to allow automatic airflow in one direction while preventing reverse air movement in ventilation and exhaust systems. The damper operates solely on gravity and air pressure—opening when airflow is present and closing immediately when the system is off—making it ideal for applications requiring passive backdraft prevention without the need for external power.
Constructed with durable materials and engineered for reliable performance, gravity louvers ensure smooth, quiet operation and effective protection against dust, wind, and unwanted infiltration. These dampers are suitable for wall, duct, and façade installations in commercial, industrial, and residential ventilation systems.

Features:

  • Frame constructed from robust GI sheet for long-lasting strength and rigidity.

  • Lightweight extruded aluminium or GI blades designed to open easily under airflow and close automatically by gravity.

  • Low-friction blade movement for smooth, silent operation.

  • Effective backdraft prevention in exhaust and ventilation systems.

  • Available with bird screen or insect mesh upon request.

  • Corrosion-resistant powder-coated finish available as an option.

  • Suitable for horizontal or vertical mounting depending on application.

  • Ideal for wall openings, duct ends, and exterior ventilation terminations.

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