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

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: