Marine Rectangular Fire Damper - Marine Manual Fire Damper - Hi-sea

Marine Rectangular Fire Damper

Marine Rectangular Fire Damper

1. 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℃.

2. 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

Rectangle

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.

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.

3.
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

4. Notice of order

(1). Please clearly specify the model and size;
(2). Please clearly specify the control type;
(3). Please clearly specify the especial requirement, and we shall design and fabricate according to your requirements.
(4). All fire damper are made of steel Q235-A or stainless steel 1Crl8Ni9Ti material according to consumer's requirements.
5. Main technical parameter

DN

d1

D1

Flange

n

100

106

136

155

6

125

131

161

180

150

156

186

205

175

181

211

230

8

200

206

236

255

250

256

286

305

300

306

336

355

12

350

356

386

405

400

405

436

455

450

460

492

510

16

500

510

342

560

20

600

610

642

660

700

710

742

760

24

800

810

842

860

28

900

910

942

960

1000

1010

1042

1060

32

6. Outline drawing

Marine Rectangular Fire Damper

7. Our Inventory:

8. IACS Certificate: DNV▪GL, LR, KR, ABS, CE, CCS, BV

Contact with us now

Our mail: hs@cqhisea.com

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