Galvanized Non-Return Damper - Medium to High Pressure

GIH-NRD Galvanized Non-Return Damper - Medium to High Pressure.

The GIH - NRD is a duct mounted device that is composed of a set of horizontally mounted blades that are normally closed and are free to rotate around their horizontal axis. The GIH - NRD can be used at the exit terminal of exhaust ducts and fans for medium & high pressure (minimum 100 Pa, maximum 1500 Pa.).

Certain pressure is usually required before the damper opens to expel the exhaust air, which ensures the elimination of back flow.