Marine Multi-Blade Fire Damper

Marine Multi-Blade Fire Damper

1. Features
The fire damper used for resisting fire in HVAC duct system. The fire damper could be shut off automatically at once to prevent the fire spreading along air duct when it fired and the temperature in air duct got to more than 70℃.
Our fire damper are especially designed for sea environment, and widely used for navy vessels, off-shore platform and underground projects etc. The fire damper could effectively hinder hydrosphere and fog in duct, and work well in this environment.
2. Main technical parameter

Iterm Types	Manual fire damper	Electrical fire damper	Pneumatic fire damper
Fusing temp.	70±3℃	70±3℃	70±3℃
Closed time	＜2s	＜1s	＜2s
Air leakage ate	≤5m³/m².h	≤5m³/m².h	≤5m³/m².h
Air source pressure	---	---	Compressed air of 0.5~0.8MPa
Control voltage	---	DC24V/AC110V/AC220V
Protection degree	---	IP44/IP56/IP65/IP67
Explosion-proof degree	---	ExdⅡBT~BT6 ExdⅡCT4~CT6

3. Outline Drawing of three types

4. IACS Certificate: DNV▪GL, CCS, CE, LR, BV, ABS, KR