HVAC System Fire Damper
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.
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.
Shape
Round
User specified
Rectangle
User specified
Explosion-proof Requirements
Explosion-proof
For use in hazardous areas, containing explosive gases
Non-explosion proof
It is installed on the air duct of the ventilation and air-conditioning system with fire protection requirements.
Protection Degree
IP44/IP56/IP65/IP67
User specified
Explosion-proof Degree
Exd II BT4~BT6
Exd II CT4~CT6
User specified
Material
Carbon steel
Higher hardness and better wear resistance can be obtained after heat treatment. The hardness in the annealed state is very moderate, and it also has good machinability. Raw materials are very common, simple and easy to obtain, and the production cost is relatively low.
Stainless steel
It has good plasticity, toughness, weldability, corrosion resistance and non-magnetic properties, and has good corrosion resistance in oxidizing and reducing media.
Comparison
Product Picture of other low quality supplier
Product Picture of our factory
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
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
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
Specific Difference Between Us and Other Suppliers
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 |
|
Maintenance:
1. Regularly test all the air locks and air lock shutters of the whole ship every week, manually switch it several times, check whether the signal output is consistent with the working state of the sausage, and make corresponding records;
2. Regularly and quantitatively apply some lubricating oil to the blades of the damper shutters;
3. Check the action of the two-position three-way solenoid valve on site at least once a week.
IACS Certificate: LR, CE, ABS, DNV•GL, KR, BV, CCS
Related products for "HVAC System Fire Damper"
.jpg)
