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

Marine Manual Fire Damper

Marine Manual Fire Damper

1. Introduction:

Marine manual fire damper is another type of fire protection device used in marine applications to prevent the spread of fire and smoke through ventilation ducts and bulkheads. Unlike pneumatic fire dampers, which are activated automatically, manual fire dampers require manual intervention to close or open the damper blades.

2. Configuration Options:

Features

Shape

Round

User defined

Rectangle

User defined

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.

Fire Resistance Rating

A0/A15/A30/A60

User defined

Control Unit

Manual Actuator

It can be manually operated on-site and can be controlled remotely.

Spindle material

Stainless steel

It has a series of characteristics such as excellent corrosion resistance, formability, compatibility and toughness

Explosion-proof requirements

Explosion-proof/non-explosion-proof

User defined

Body Color

Red (standard)

User defined

Type

Airtight: Rectangular

Non-airtight: Rectangular/Round

User defined

3. Specific Difference Between Us and Other Suppliers

Comparison

Other low quality supplier

Consequence

Our Factory

Consequence

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 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 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

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

4. Features:

Fire damper is open in normal condition;

If the temperature of air within damper duct exceeds 70±3℃, the fusible link of fire will be broken to close the fire damper;

Handle steel dragline could be output locally, the gragline is 1.5m in length;

The electrical signal could be output according to user's requirement;

Fire damper should be reset manually.

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5. Fault Finding:

Fault

Possible causing problems

Recommended action

Solenoid valve leakage

1. Safety problem

2. Maintenance problem(dangerous, money, manpower)

3. The burden of air compressor

1. Replace the solenoid valve with better quality

2. Do monthly inspection of fire damper, deal with any problem immediately

3. Observe the leakage during the inspection

6. Component:

The fire damper consists of control box and field actuator.

The control box also includes the main power switch, solenoid valve, coil and wiring terminals.

The field actuator also includes fusible link, machine controlled valve, brake lining, actuator cylinder.


7. Outline Drawing:

8. Product Showing:

Contact with us now

Our mail: hs@cqhisea.com

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