Marine Fire Damper

Marine Fire Damper

Introduction

Marine fire damper is a safety device installed in ventilation systems on ships and other marine vessels to prevent the spread of fire and smoke in the event of a fire. The damper is designed to close automatically in the event of a fire, sealing off the ventilation duct and preventing the spread of flames and smoke to other parts of the ship.

Fire dampers are typically installed in ventilation ducts that penetrate fire-resistant bulkheads and decks. When the temperature in the duct reaches a certain threshold, the damper is activated and closes automatically, preventing the spread of flames and smoke.

Marine fire dampers are an important safety feature on ships, as fires can spread quickly in enclosed spaces, making it difficult for crew members to escape or for firefighting personnel to control the blaze. By preventing the spread of fire and smoke, fire dampers help to protect the crew and the vessel from the potentially devastating effects of a fire at sea.

Product Classification

Marine Fire Damper
Marine Manual Fire Damper	Marine Electrical Fire Damper	Marine Pneumatic Fire Damper

Product Structure of Fire Damper

The fire damper consists of Valve body, blade, actuator, temperature sensor, etc.

Configuration Options

		Features
control mechanism	manual	Manual operation on site.
	electric	It can be operated manually on the spot or controlled remotely.
	pneumatic	It can be manually operated on-site or remotely controlled centrally. Pneumatic fire dampers are generally installed in hazardous areas.
Fire-proof level	A0	A0 grade mainly emphasizes A grade, do not use flammable materials, burn for 0 minutes, and the temperature rise on the opposite side does not exceed 130 degrees A grade fireproof.
	A15	Within 15 minutes, the average temperature on the backfire side shall not be higher than the original temperature by more than 140 degrees, and the temperature at any point including the joint shall not be higher than the original temperature by more than 180 degrees.
	A30	Within 30 minutes, the average temperature on the backfire side shall not be higher than the original temperature by more than 140 degrees, and the temperature at any point including the joint shall not be higher than the original temperature by more than 180 degrees.
	A60	Within 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 at any point including the joint shall not be higher than the original temperature by more than 180 degrees.
form	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 general fire protection requirements.

Specific Difference Between Us and Other Suppliers

Comparison
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
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
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

Feature

1. Fire-resistant construction: The damper should be constructed from materials that are capable of withstanding high temperatures and preventing the spread of fire.

2. Automatic shut-off: The damper should be equipped with an automatic shut-off mechanism that will close the damper in the event of a fire.

3. Manual override: A manual override should be available to enable the damper to be closed manually in the event of an emergency.

4. Corrosion resistance: The damper should be designed to resist the effects of saltwater and other corrosive agents.

5. Easy installation: The damper should be designed for easy installation, with minimal requirements for cutting and fitting.

6. Low maintenance: The damper should require minimal maintenance, with only periodic inspection and testing necessary.

7. Compliance with regulations: The damper should comply with all relevant marine safety regulations and standards.

8. High reliability: The damper should be designed to operate reliably in harsh marine environments, with minimal risk of failure or malfunction.

9. Compact design: The damper should be designed to take up minimal space, while still providing effective fire protection.

10. Long lifespan: The damper should be designed for a long lifespan, with minimal degradation of its fire protection capabilities over time.

Application Principle

Since a fire damper is located between two fire zones, the damper must be operationally closed in any of the zones involved in order to effectively block the fire.

Any fire damper shall be fail-safe, with a second procedure to effectively shut off the fire.

This function can be achieved by means of wire melting or loss of electricity.

Installation and Operation Instruction

Shipyard should check the fire damper and ensure everything is ok before installation.

Fire damper should have a independent support to ensure the function of fire damper.

A service space of at least 350mm should be reversed for maintenance.

Manhole of at least 450mm*350mm is required when the fire damper is installed above ceiling or on duct.

No fire or welding are permitted within s scope of 3m from fire dampers, in order to ensure the temperature of sensor less than 65℃.

Fire damper should be tested during installation, and be inspected regularly after installation.

Product Maintenance

(1) Check all fire dampers and fire damper shutters on the ship regularly every week, hold a meeting to close several times manually.

Check whether the signal output is consistent with the working condition of the site, and make corresponding records.

(2) Apply some lubricating oil to the damper shutter blades at regular intervals.

(3) The solenoid valve on the site shall be checked and operated at least once a week.

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