Marine Equipment
Marine Round Pneumatic Explosion Proof Fire Damper
Fire damper is installed on the ventilation duct with fire requirement, used to prevent the fire from spreading. When on fire, the temperature in the duct reaches 70℃, the fire dam...
Marine Round Pneumatic Explosion Proof Fire Damper
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China Marine Round Pneumatic Explosion Proof Fire Damper:
Fire damper is installed on the ventilation duct with fire requirement, used to prevent the fire from spreading. When on fire, the temperature in the duct reaches 70℃, the fire damper will automatically close quickly to avoid fire spreading. Pneumatic explosion proof fire damper is controlled by the pneumatic actuator.
Technical Specification:
Design Standard: CB/T3557-1995
Shape: Round, Rectangular
Blade Type: Single Blade, Multi Blades
Material: Steel, Stainless Steel, Steel with Galv
Main Parts: pneumatic actuator, temperature detector, damper body, damper plate, main shaft, flange.
Fireproof Class: A0,A15, A30, A60
Certificate:ABS,BV,CCS,DNV,GL,LR,NK,KR
Main Functions & Features:
1)The fire damper is opened under the normal situation.
2) When the temperature within the duct reaches 70 ± 3 ℃, the temperature fuse is blown, the damper is closed automatically.
3)The fire damper can be closed by dragging the manual steel dragline, the dragline length is nornally 1.5meter.
4) The damper needs to be reset manually.
Main Size List(mm)：
| DN | D | D1 | n | L |
| 80 | 135 | 116 | 4 | 320 |
| 100 | 155 | 136 | 6 | |
| 125 | 180 | 161 | 6 | |
| 150 | 205 | 186 | 6 | |
| 175 | 230 | 211 | 8 | |
| 200 | 255 | 236 | 8 | |
| 250 | 305 | 286 | 12 | |
| 300 | 355 | 336 | 12 | |
| 350 | 405 | 386 | 12 | |
| 400 | 455 | 436 | 16 | |
| 450 | 510 | 492 | 16 | |
| 500 | 560 | 542 | 20 | |
| 600 | 660 | 642 | 20 | |
| 700 | 760 | 742 | 24 | |
| 800 | 860 | 842 | 28 | |
| 900 | 960 | 942 | 28 | |
| 1000 | 1060 | 1042 | 32 |
L can be decided by the customer. But in the type approval certifiate, L=320mm
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