Materials
Frame: 1.0mm Galvanized Steel
Blade: 0.4mm Galvanized Steel if W < 800mm
0.7mm Galvanized Steel if W > 800mm
Connection Type
TDC joint
Slip joint
Slot in type
NRD – Non Return Damper
A non return damper is designed to prevent air to flow through undesired / unwanted direction. In system operation mode, the blades of NRD opens letting air flows through. Else in non operating mode, blades close / shut o automatically due to its weight and gravity , to prevent back draught of the air.
Related products
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CFD74 – Curtain Type Fire Damper
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VCD – Volume Control Damper / Motorised Volume Control Damper
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MFD74 – Multi Blade Fire Damper
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MSD – Motorised Smoke Damper
