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              IOM 

 
 

 
 

 
 

 
 

 
 

 
 

 
 

  

 

 
 

www.actionair.co.uk 
[email protected] 

 

A60 Marine  

Fire Damper

  

With Electrical 

Actuator

 
 

 
 

 
 

 
 

 
 

 
 

 
 

 
 

1. Description 

 The actionair Marine Fire Damper is tested and approved for 

fitting to class A-0 A-15 A-30 A-60 divisions (bulkheads and 
decks), when suitably insulated. 

A-0 does not require any insulation to the casing. 
2. Tests, approvals and certification 

 Lloyds Register Approved.  

 DNV-GL Approved. 

 ABS Approved 

 USCG Approved. 

 Transport Canada approved. 

 MED Marine Equipment Directive Compliant. 

 Fire tested to the latest IMO FTP code & in compliance 

international convention for the safety of life at sea (SOLAS) 

 Sira certification (Ex) category 2 equipment 

 Corrosion Tested - EN60068-2-52 severity 2 conditions 

 Vibration Tested – EN60068-2-6 (5Hz to 350Hz @2g) 

3. Health and Safety 

 Care must be taken when installing and inspecting dampers, 

as they are likely to close without warning due to loss of 

electrical power, or a temperature rise in the ductwork. This is 
their prime function. 

Do not introduce any items, fingers or limbs between the 
blades. 

 Larger dampers are heavy and must be handled in accordance 

with current local regulations and good practice. 

 All wiring should be carried out in accordance with the wiring 

details provided, to the IEC regulations. 
4. General Information 

 The actionair Marine Fire Damper is suitable for both vertical 

and horizontal applications, with airflow in either direction. 

 The dampers tested to IMO fire test procedures Code, Annex 1 

Pt 3, are normally open, and fail-safe to the closed position. The 
actionair Marine Fire Dampers are supplied with the blades in 

the fully interlocked closed position to avoid damage during 
transit and installation. It is recommended that the dampers 

remain closed until actual date of commissioning. All fire 
dampers are life safety products and must be treated with care 

during handling, storage and installation.  

 Actionair Marine Fire Dampers are designed for applications in 

normal dry filtered air systems and should be subjected to a 

planned inspection programme. 
5. Installation - see below. 

6. Maintenance & Cleaning 

 Dampers are supplied in two casing and blade material 

options: - 
1/ Galvanised Steel casing and 430 Stainless steel blades, only 

suitable for installation in dry filtered systems. 
2/ 316 Stainless steel casing and blades and drive - more suited 

for corrosive conditions, but even this will rapidly corrode and 
fail if not properly maintained, when used in air intake systems 

at sea. The addition of a mist eliminator is highly recommended, 
and access must be provided for maintenance. 

7. Testing 
Two levels of testing exist. 

 Routine testing - Monthly, or in accordance with maintenance 

programme, release and reset damper (via control system or 
ETR test switch). Check remote indication or visual check of 

mechanical pointer as appropriate. 

 Visual check at damper - At commissioning and at least once 

a year, check damper operation by removing and  
re-applying power to actuator. (via ETR test switch). 

 Visually check blades for damper closed and open positions. 

Prove remote indication if applicable. 
8. Routine Maintenance 

 Depending upon environmental conditions, each damper will 

merit its own cleaning regime. Particularly hostile areas. 

 ‘Frequency of maintenance’ should be determined by 

collecting historical data from previous visits, and for this 

reason, commence maintenance programmes. 

 Dampers in ‘Dry Filtered Air’ require very limited maintenance. 

When exposed to fresh air intakes and/or inclement conditions 

this may require monthly cleaning and lubrication maintenance 
to be performed. 

9. Cleaning 

 Using light lubricant, clean all exposed surfaces, using a cloth. 

Remove all traces of surface staining, as this will deteriorate 
further causing deeper material corrosion. 

 For 316 stainless steel blades and case, pay specific attention 

to the blade rivets where crevice corrosion will cause rapid 
failure of blades if not kept in check. 

 If damper is stiff to operate lubricate blade ends, open and 

close damper successively until the damper moves with ease. 

(This may necessitate removal of the actuator and operating 
the blades manually by the drive shaft). 

 Refit actuator and re-test.  

 Clean off excessive lubricant. 

 

 
 

 
 

 

 

 

YYYY Denotes  

the year the 

Wheel mark 

is affixed to damper 

 

0038/YYYY 

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