HVAC System Fire Damper - Marine Fire Damper - Hi-sea

HVAC System Fire Damper

HVAC System 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℃.
Our fire damper are especially designed for sea environment, and widely used for navy vessels, off-shore platform and underground projects etc. The fire damper could effectively hinder hydrosphere and fog in duct, and work well in this environment.

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

User specified

Rectangle

User specified

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.

Protection Degree

IP44/IP56/IP65/IP67

User specified

Explosion-proof Degree

Exd II BT4~BT6

Exd II CT4~CT6

User specified

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.

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

Main technical parameter

Iterm

Types

Manual fire damper

Electrical fire damper

Pneumatic fire damper

Fusing temp.

70±3

70±3

70±3

Closed time

2s

1s

2s

Air leakage ate

5m³/m².h

5m³/m².h

5m³/m².h

Air source pressure

---

---

Compressed air of

0.5~0.8MPa

Control voltage

---

DC24V/AC110V/AC220V

Protection degree

---

IP44/IP56/IP65/IP67

Explosion-proof degree

---

ExdBT~BT6 ExdCT4~CT6

Picture in the factory

Maintenance:
1. Regularly test all the air locks and air lock shutters of the whole ship every week, manually switch it several times, check whether the signal output is consistent with the working state of the sausage, and make corresponding records;
2. Regularly and quantitatively apply some lubricating oil to the blades of the damper shutters;
3. Check the action of the two-position three-way solenoid valve on site at least once a week.
IACS Certificate: LR, CE, ABS, DNV•GL, KR, BV, CCS

Contact with us now

Our mail: hs@cqhisea.com

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