Marine Round 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℃.
Configuration Options
Features
Control Mechanism
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.
Manual
On-site manual operation
Shape
Round
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.
Fire-proof level
A0/A15/A30/A60
Within 0/15/30/60 minutes, the average temperature on the backfire side shall not be higher than the original temperature by more than 140 degrees, and the temperature of any point including the joint shall not be higher than the original temperature by more than 180 degrees.
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
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
Notice of order
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DN |
d1 |
D1 |
Flange |
n |
|
100 |
106 |
136 |
155 |
6 |
|
125 |
131 |
161 |
180 |
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150 |
156 |
186 |
205 |
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175 |
181 |
211 |
230 |
8 |
|
200 |
206 |
236 |
255 |
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250 |
256 |
286 |
305 |
|
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300 |
306 |
336 |
355 |
12 |
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350 |
356 |
386 |
405 |
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400 |
405 |
436 |
455 |
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450 |
460 |
492 |
510 |
16 |
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500 |
510 |
342 |
560 |
20 |
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600 |
610 |
642 |
660 |
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700 |
710 |
742 |
760 |
24 |
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800 |
810 |
842 |
860 |
28
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900 |
910 |
942 |
960 |
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1000 |
1010 |
1042 |
1060 |
32 |
Our Inventory:
IACS Certificate: DNV▪GL, CE, KR, ABS, LR, CCS, BV
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