
Dampers are Manufactured & Tested to the required Industry standards
Refer to our Information Brochure for details
Dampers must be installed into an approved application
Refer to our System Selector to find a product to suit your application.
Never before has a Fire Damper offered so much flexibility!
Lorient LVH Series Intumescent Fire Dampers
IFD’s are designed to seal penetrations provided for movement of air via ducted or naturally ventilated means.
Lorient’s LVH series of IFD’s have no moving parts providing a reliability unmatched by conventional mechanical type fire dampers.
The operation of the Lorient LVH series IFDs is by heat activation of the intumescent material.
The intumescent swells many times its original thickness to form a solid barrier to fire.
This mode of operation means that the Lorient LVH series intumescent fire dampers are bi-directional and cannot rust open.
In addition they are not affected by building movement or thermal expansion if built or cast into the opening.
Lorient Technical Support
Lorient provides free technical support for the design, specification and installation of its Intumescent Fire Damper products and systems.
Contact Lorient (Ph 1300 858 010) to ensure that the most effective and economical solution is specified and installed.
Standards & Codes
Relevant standards and codes relating to Fire Damper performance, Fire Resistance, installation and maintenance include:
• AS 1668.1 Design
• AS 1530.4 Fire test methodology
• AS 1682.1 Air leakage testing / design
• AS 1682.2 Installation
• AS 1851.6 Maintenance
Lorient Approvals
Approved installations and applications for Lorient Intumescent products is growing all the time, and includes a number recent approvals such as:
• CSR Hebel Wall Systems
• Pyropanel constructed door systems
• E-Core door assemblies
• Firecore Door assemblies
• CSR Security Wall
Testing is carried out by independent laboratories throughout Australia, New Zealand and other overseas locations.
Lorient Intumescent Mastic
Designed for use in Fire Damper installation plus uses where other intumescent material may be impractical.
When exposed to fire, Lorient Mastic swells to many times its original volume while maintaining adhesion to all common construction materials.
Water based for easy clean up, and offering smooth gunnability, Lorient Mastic is Flexible, Paintable and has acoustic properties.
Lorient Approvals specify the use of ONLY Lorient Intumescent Mastic
Regulatory Requirements 
To comply with the Building Code of Australia and referenced standard AS 1668.1. Lorient LVH Series IFD’s are fully fire tested in accordance with AS 1530.4 and the air leakage test detailed in AS 1682.1.
Comprehensive approvals provide users with confidence to specify Lorient intumescent fire dampers for both “Deemed to Satisfy” and “performance based alternative solutions”.
FRL (Fire Resistance Level)
FRL refers to the time in minutes as determined in accordance with the AS 1530.4 laboratory Test methods for:
• Structural Adequacy – The ability to maintain both stability and load bearing capacity.
Fire dampers have no requirement for this criterion.
• Integrity – The ability to prevent the passage of flame and hot gases as specified in AS 1530.4.
• Insulation – The ability to maintain a surface temperature below that specified in AS 1530.4.
FRL is expressed in order of: Structural Adequacy / Integrity / Insulation
Generally, Fire Dampers require an FRL for Integrity only.
Thus a Fire Damper may have a Fire Resistance Level of ' FRL - / 120 / - ' giving a 2 hour Fire Rating.
Note that where a dash appears – there is no requirement for that criterion.
Dampers must be installed into Approved Applications
Refer to our System Selector to find a product to suit your application
LVH44
Features & Benefits
• Innovative design slimline design
• Simple installation
• Suitable for retofit of seized mechanical dampers
• Approvals for Wall, Floor & Ceiling mounting
• No thermal expansion clearances during install
• Reduced maintenance & resultant cost savings
Technical
• Integrity Fire Rating - up to 4 Hour
• Damper Depth 45mm
• Sizes available from 45mm to over 10,000mm
LVH44 CASED
Features & Benefits
• Insulating Wall & Floor Mount
• Includes sleeve & flanges
• Can be cast in situ or retro fitted
• No hazardous fibrous packing required
• No thermal expansion clearances during install
• Reduced maintenance & resultant cost savings
Technical
• Integrity Fire Rating - 4
• Insulation Fire Rating - 2 hour plus
• Sizes available 150 x 150mm, 200 x 200mm,250 x 250mm, 300 x 300mm
LVH-C
Features & Benefits
• Moisture resistant
• Innovative light weight design
• Space savings compared to old Rat Trap designs
• Suitable for use with supply grilles & return air diffusers
• Reduced maintenance & resultant cost savings
• Ideal for a retrofit in Fire safety upgrades
Technical
• Integrity Fire Rating – up to 1 ½ hour
• Insulation Fire Rating – up to 1 ½ hour
• Sizes available up to 600 x 600mm
LVH-O
Features & Benefits
• Cost effective solution
• Innovative & easy to install light weight design
• Suitable for extract and supply systems in commercial, industrial and residential projects
• No hazardous fibrous packing required
• No thermal clearances required in installation
• Reduced maintenance & resultant cost savings
• Also available as LVH-OSS for aggressive environments
Technical
• Integrity Fire Rating – up to 4 hours
• Sizes available 100mm to 450mm Dia
• Galvanised sleeve (spigot) 360mm long
LVH-O HI FLO
Features & Benefits
• Clever new Hi Flo design with significantly reduced pressure drop
• Suitable for exhaust systems where every Pa saved can mean reduced fan sizing & resultant power savings
• System Acoustic benefits
• No thermal clearances required in installation
• Reduced maintenance & resultant cost savings
• Also available in rectangular LVH44 Hi Flo design
Technical
• Integrity Fire Rating – up to 2 hours
• Sizes available 150mm & 200mm Dia
• Galvanised sleeve (spigot) 360mm long
• Intumescent cell only is available
LVH-OSS
Features & Benefits
• Cost effective solution
• Stainless steel sleeve
• No hazardous fibrous packing required
• No thermal clearances required in installation
• Reduced maintenance & resultant cost savings
• Available with Halar coating for hazardous environments
Technical
• Integrity Fire Rating – up to 2 hours
• Sizes available 100mm to 450mm Dia
• Stainless Steel sleeve (spigot) 360mm long
• Halar Coating option
LVH-D
Features & Benefits
• Innovative slimline design
• Suitable for both Mini & maxi fire doors
• All in one Kit includes 1 x IFD, 2 x Cover Grilles, Lorient Mastic & fixings
• No moving parts result in a robust trouble free installation which will not rattle or vibrate
• Easy installation in New or Existing doors
Technical
• 2 Hour Fire Rating FRL - / 120 / 30
• Sizes available 600 x 300mm, 450 x 450mm & 600 x 600mm (Pyropanel doors only)
• Suits 35mm thick Fire Doors