Marine Circular Fire Damper

Marine Circular Fire Damper

1. Features
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.

2. Configuration Options:

		Features
Control mechanism	Manual	On-site manual operation
	Electric	It can be manually operated on-site and can be controlled remotely.
	Pneumatic	It can be manually operated on-site and can be controlled remotely. Pneumatic fire dampers are generally installed in hazardous areas.
Fire-proof level	A0/A15/A30/A60	A0 grade mainly emphasizes A grade, do not use flammable materials, burn for 0 minutes, and the temperature rise on the opposite side does not exceed 130 degrees A grade fireproof
Shape	Circular/Rectangular	User specified
Explosion-proof requirements	Explosion-proof/non-explosion-proof	Whether it is used in hazardous areas, containing explosive gas

3. Specific Difference Between Us and Other Suppliers

Comparison
Other low quality supplier	Consequence	Our Factory	Consequence
The installation accuracy of the connecting rod between the baffles is not enough	As a result, when the fire damper is closed, the shutter still cannot be completely closed.	The connecting rod between the baffles is installed with high precision	When the fire damper is closed, the shutter can be fully closed.
The thickness of the damper shell does not meet the requirements	The casing is prone to breakage	The thickness selection of the damper shell The regulations of each classification society are consistent with the SLOAS requirements	The shell meets the requirements, and the damper can be used for a longer time
Air leakage does not meet the requirements	Excessive air leakage from fire dampers will cause major safety hazards	Airtight performance is selected according to requirements	The air leakage meets the requirements, and the product is safer to use
The fire rating does not meet the requirements	It is easy to leave a safety hazard	Select as required	Product use more assured, longer service life

4. 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

5. Outline drawing

6. Picture in the factory

7. Installation Precautions:
In the ventilation system, the fire damper has a good ventilation effect and should be always open and installed on the air duct. When a fire occurs or the ambient temperature exceeds the set value, the valve will automatically close and must be reset manually. During the specific layout, on the one hand, the characteristics of smoke signal, manual valve closing, and automatic valve closing should be comprehensively considered, and on the other hand, it can facilitate later maintenance operations.
8. IACS Certificate: KR, CE, ABS, DNV•GL, LR, BV, CCS