Designed for internal application in shafts within multi-level buildings with a natural (stack effect) or mechanical ventilation system.

For smoke evacuation and control within lobbies, suitable for dry wall or masonry/ concrete construction.

Designed for internal application in shafts within multi-level buildings with a natural (stack effect) or mechanical ventilation system.

For smoke evacuation and control within lobbies, suitable for dry wall or masonry/ concrete construction.

The LDN Series Lobby Natural Ventilation Smoke Damper consists of two parts, the damper within a sleeve and a grille room side for ductless applications. The main sleeved damper with peripheral flange allows it to be fitted flush into the builder's prepared aperture.

The fitted internal actuator is used to drive the damper blades from the normal closed position to the fully open position on receipt of a signal from a fire/smoke control and detection system. The horizontal blade grille has been designed to maximize the airflow with minimal pressure loss and is affixed to the damper with concealed colour-matched fixings.

Features and benefits:

• Suitable for dry line walls and masonry walls.
• CE marked 120 minute rated.
• Large single section motorized format.
• Damper and matching grille combined tested.
• Casing pilot fixing holes assists correct installation.
• Visible internal surfaces of the damper and sleeve are painted matt black.
• Enclosed easy access actuators.
• Easy Fix® fascia grille.
• Discrete installation.
• 24 V and 230 V actuator options.
• The LD mechanical ventilation series is also available, specified separately.

The LDN Series Lobby Natural Ventilation Smoke Damper consists of two parts, the damper within a sleeve and a grille room side for ductless applications. The main sleeved damper with peripheral flange allows it to be fitted flush into the builder's prepared aperture.

The fitted internal actuator is used to drive the damper blades from the normal closed position to the fully open position on receipt of a signal from a fire/smoke control and detection system. The horizontal blade grille has been designed to maximize the airflow with minimal pressure loss and is affixed to the damper with concealed colour-matched fixings.

Features and benefits:

• Suitable for dry line walls and masonry walls.
• CE marked 120 minute rated.
• Large single section motorized format.
• Damper and matching grille combined tested.
• Casing pilot fixing holes assists correct installation.
• Visible internal surfaces of the damper and sleeve are painted matt black.
• Enclosed easy access actuators.
• Easy Fix® fascia grille.
• Discrete installation.
• 24 V and 230 V actuator options.
• The LD mechanical ventilation series is also available, specified separately.