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
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
3. Specific Difference Between Us and Other Suppliers
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 |
|
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
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