Ship Fire Damper
1. Product Description:
The fire dampers 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℃.
The fire dampers are especially designed for sea environment, and widely used for the navy vessels, off-shore platform and underground projects etc.
The fire dampers could effectively hinder hydrosphere and fog in duct, and work well in this environment.
Usually it is open, the angle of blade is adjustable at the range of 0 degree to 90 degrees manually, once fire occurs, the gas temperature of duct arrives at 70 degrees, and then the fuse protector will be fused and the damper will close under the pull of spring. Compared with the ordinary fire proof damper, it also can be closed by DC24V electrical control. It is applied to the pipeline of smoke extraction which needs fireproofing. It can isolate smoke’s leaking and stop the fire spreading.Electrical Damper Air Duct
2. Specific Difference Between Us and Other Suppliers:
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
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. Features:
Using galvanized steel as material to make sure good insulation performance, fire & corrosion resistance.
Duration, long service life.
Easy installation.
The flange is bended directly by the frame.
The valve size and color can be customized according to customer's requirements
4. Application:
The fire dampers are especially designed for sea environment, and widely used for the navy vessels, off-shore platform and underground projects etc.
The fire dampers could effectively hinder hydrosphere and fog in duct, and work well in this environment.
5.Failure analysis and maintenance:
fault phenomenon
Reason
Overhaul
Fire dampers closed
1. The air source is not supplied with air
2. The manual reversing valve is damaged
3. Cylinder damage
4. The solenoid valve coil is burned out
1. Check the air supply pipeline
2. Replace the manual reversing valve
3. Overhaul or replace the cylinder
4. Replace the coil
The indicator light on the control box does not show
1. The wiring head is loose
2. Signal box switch circuit failure
3. The indicator light is damaged
1. Reconnect the line
2. Overhaul the switch circuit
3. Replace the indicator light
6. Outline Drawing:
7. Product Showing:
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