A60 Fire Damper - Marine Manual Fire Damper

A60 Fire Damper

A60 Fire Damper

Overview:

A60 fire damper is a specific type of fire damper that is designed to provide a fire-resistance rating of 60 minutes (or 1 hour) according to the industry standards. The "A60" classification indicates that the fire damper has been tested and certified to withstand the spread of fire and maintain its integrity for at least 60 minutes in a fire situation.

A60 fire dampers are commonly used in marine and offshore applications where a high level of fire protection is required. They are typically installed in bulkheads, decks, or walls to prevent the passage of fire and smoke through ventilation ducts, cable penetrations, or other openings. These dampers are specifically designed to withstand the harsh and demanding conditions found in marine environments.

The construction and operation of an A60 fire damper are similar to other types of fire dampers, but with enhanced fire resistance capabilities. When a fire is detected, the damper automatically closes, sealing off the opening and preventing the spread of fire and smoke to other areas. The materials and construction methods used in A60 fire dampers are designed to withstand high temperatures, maintain structural integrity, and provide a barrier against flames and heat.

Component:

Types & parameter

Type	axd	L	Flange size
CFH-S axd	100×100~500×700	≥250	According to GB1561-79

Circular single-blade manual fire damper

Type	axd	L	Flange size
CFH-S φD	100~500	≥250	According to GB1561-79

Rectangular multi-blades manual fire damper

Type	axd	L	Flange size
CFHD-S axd	300×400~1600×2000	≥250	According to GB1561-79

Circular multi-blades manual fire damper

Type	axd	L	Flange size
CFHD-S φD	300~1800	≥300	According to GB1561-79

Functions:


Control method	Manual+overtemperature shutdown(temperature sensor)
Control unit	Manual control box
Installation type	Bulkhead type/deck type
Fire resistence rating	A0/A15/A30/A60
Control mode	Local/remote cable control (optional)
Switch working angel of valve plate	0° 90°
Switch indicator	Mechanical+remote open or close fire resistance rating
Turn-off time	≤2 s
Overtemperature shutdown	70±3℃
Air-tightness	Hermetic/non-Hermetic
Air-leakage	Hermetic: meet EN1751:1998 standard Non-Hermetic: meet CB/T3557-1995
Spindle material	Stainless steel
Explosion-proof requirement	Explosion-proof/non-explosion-proof
Valve body colour	Red(standard) or user difine
Model	Hermetic: rectangle/rectangle to round Non-Hermetic: rectangle/round/rectangle to round

Fault analysis and maintenance:

Fault phenomenon	Reason	Examine and repair
Fire damper closed	1. The air source is not supplied 2. The manual reversing valve is damaged 3. Cylinder damage 4. The solenoid valve coil is burnt out	1. Check the air supply pipeline 2. Replace the manual reversing valve 3. Repair or replace the cylinder 4. Replace the coil
The indicator light on the control box does not display	1. The connector is loose 2. Signal box switch circuit fault 3. The indicator light is damaged	1. Reconnect the line 2. Repair the switch circuit 3. Replace the indicator light
The power transmission of fire damper cannot be opened	1. The fuse is burnt out 2. The cylinder spring is damaged 3. The windshield blade is rusted and stuck 4. The relay is damaged	1. Replace the fuse with a new one 2. Replace the spring with a new one 3. Remove rust and polish movable wind vane 4. Replace the relay with a new one
The brake switch is not in place	Long term ventilation leads to dust accumulation at the brake disc, and the brake disc shaft is rusted and stuck	1. Do a good job of monthly inspection. If the switch is not in place, deal with it. Activate the air brake and refuel the rotating shaft 2. Remove the air brake in important areas for thorough cleaning 3. Longer term: the new platform is built, and the oil nozzle is added at the rotating shaft to facilitate maintenance

Drawing:

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