Marine Air Flow International
+61 428 301 700

Engine Room Air Dampers

Marine Engine Room Air Dampers (Fire Flaps)

Air Dampers are a necessary requirement for the engine room of any commercial in-survey vessel, and are also a good idea on non survey craft.

Typically Air Dampers are either triggered automatically or manually, and effectively close the air supply to the engine room to allow fire suppression equipment to work. We can manufacture and supply Air Dampers (Fire Flaps) either in conjunction with our Air Intake Grilles, or supplied on their own.

They can be mounted immediately rear of the grilles, within the duct work itself, on the bulkhead or deck head penetration, or any penetration that serves air into or out of the engine room.

Our Air Dampers come with a control cable that runs from the damper to an external location outside of the engine room space. This manual control is easily operated by disengaging the pull ring from the keeper bracket. This action trips the spring loaded damper louvre which closes off the air supply to your engine room. They are also available with a semi auto control. If there is fire or intense heat in the vicinity of the control cable (which is a synthetic material), the cable will melt and trigger the flap automatically.

If you use an Air Damper system, you will need to test and prove the system annually for a surveyor. To reset after this test simply re-pull the cable and re-engage the ring into the keeper bracket. It's very easy. 
Marine Air Flow Stainless Steel Air Damper

About Our Air Dampers (Fire Flaps)

  • Manufactured to size and shape.
  • No solenoids or electronics required.
  • Could be easily installed by an owner operator.
  • Manual or Automatic release.
  • Easy to reset after testing.
  • Can be supplied singly or in conjunction with air intake grilles.
  • Meets NSCV & USL code.

Air Damper Details:

Finished Product Details

Footprint:Matches Air Intake Grille footprint
Materials:Stainless Steel 316 marine grade, fully welded.
Supplied Finish:Acid stripped and dipped. Fully immersed chromated and powder coated to chosen colour.
Action:Spring loaded louvre.
Cable:Synthetic stretch proof high tensile. Melting point of 120 degrees celcius.
Powder Coating:
Yes - on request.
Sizes:We have the following stock sizes. (length x width x depth)
200|200|100    200|730|100    200|970|100
280|280|100    280|590|100   
390|390|100    390|730|100    390|1070|100
490|490|100
590|590|100
850|850|100
Accessories Available:
24V Damper actuator

Pricing:

Air Damper Pricing (Stainless Steel Dampers)
Size: (height | width | depth)Cost:
200|200|100$1120.00
200|730|100    &   390|390|100$1280.00
200|970|100    &   280|590|100$1380.00
280|208|100$1180.00
390|730|100$1680.00
390|1070|100$2080.00
490|490|100$1475.00
590|590|100$1575.00
850|850|100$2500.00

NB: These prices are list prices. If you are a boat builder or interested in bulk quantities, please contact us for trade discounts.

Contact Us

Get in touch via phone, email or through our contact form and we will be pleased to assist with all your engine room ventilation needs. 

Address

33-37 Paradise Avenue

Miami QLD 4220


6am to 4:30pm. Mon ~ Thurs

Email

David:  office[at]marineairflow.com

Brad:   info[at]marineairflow.com

Phone

David:  +61 428 301 700

(Chief Estimator)

Brad:      +61 400 714 803

(Director)