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CB/T 3557-1995 Circular Duct Type Marine Fire Damper

Brand: DEYUAN MARINE
Standard: CB/T 3557-1995
Type: Circular
Flow rate: adjustable optional
Automatic: Thermal sensing device
Manual: Pull Line
Material: Q235A Steel
Nominal Size: DN100~DN1000
Availability:

Product Description

CB/T 3557-1995 Circular Duct Type Marine Fire Damper


Application:

Fire dampers are suitable for the ventilation and air-conditioning systems of ships and drilling platforms, as well as the ventilation and air-conditioning systems of various buildings and key departments on land.


Standard:

CB/T 3557-1995


Classification:

According to the air flow rate adjustment function, it is divided into: non-adjustable, adjustable.

According to the installation position: left type, right type.


Shape:

Round/circular


Principle:

The fire damper contains a temperature sensing element, which is made of T3 pure copper. The inner surface is dipped in fusible metal with a melting temperature of 70±3℃. When the high temperature from fire reaches damper, the temperature sensing element is melted and the switch is triggered to automatically close the damper to prevent the spread of fire. In addition, there is a  pull line for manual control.


CBT 3557-1995 -Circular Duct Type-Marine Fire Damper

Datasheet:

Nominal Size DN Flange Inner Hole d1 PCD
D1
Flange Outer Dia. 

D

Bolt Hole Qty 

n

Flange Thickness
δ
100 106 136 155 6 4
125 131 161 180
150 156 186 205
175 181 211 230 8 5
200 206 236 255
250 256 286 305 8/12
300 306 336 355 12
350 356 386 405
400 406 436 455 12/16
450 460 492 510 16
500 510 542 560 20 6
600 610 642 660
700 710 742 760 24
800 810 842 860 28
900 910 942 960
1000 1010 1042 1060 32

For more type or size of marine fire damper,pls contact us without any hesitate.

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