Non-Return Dampers

NON-RETURN DAMPERS

The NRD 1s a duct mounted device composed of horizontal blades that are normally dosed and are free to rotate in their horizontal axis. They are used at the exit terminal of exhaust ducts and fans. The damper opens against a certain pressure in order to expel the exhaust air, also preventing back flow. GIH-NRD has 1.5mm galvanized casing and 1.5mm extruded aluminium blade, while GIL-NRD has 1.2mm galvanized casing, and 1.0mm extruded aluminium blade. PA-NRD, casings are made from Pre-insulated Sandwich Panel (20mm/30mm thickness) and blades are made from 1.0mm extruded aluminum. Operating temperature is -10Â°C to 110Â°C.

NON-RETURN DAMPERS

NON-RETURN DAMPERS

Galvanized Non-Return Damper - Medium to High Pressure

Galvanized Non-Return Damper - Low to Medium Pressure

Pre-Insulated Non-Return Damper