Non Return Damper - Wall Mounted

DESCRIPTION:

• The frame and blade are made of high-quality extruded aluminium profiles, providing corrosion resistance and rigidity.
• Air-operated damper blades are fixed to the frame using self-lubricating nylon bushes.
• Blade edges are sealed with a gasket to prevent rattling noise and minimise air leakage.
• The blades open fully or at any angle depending on the air velocity and pressure. They remain stable without fluctuating when the airflow is constant.
• The blades close quietly when the airflow stops.
• Designed to maintain a constant pressure level inside pressurised rooms by relieving excess air when it exceeds the desired limit.
• Generally installed in diesel generator rooms, plant room ventilation systems and exhaust ducting.
• Available in square and rectangular sizes.
• The frame is made of an L-shaped profile for wall mounting with a 20 mm flange.