Designed to operate in the most arduous conditions and extremes of climate and temperature, Flamgard Calidair dampers have a proven record of reliability and high performance across multiple industries.
The type CFD-01 Fire and Smoke Dampers are utilised in ventilation systems to prevent the passing and spread of fire and smoke between designated divisions. The Flamgard Calidair Fire Damper is designed for bolting to steel bulkheads & decks, fixing to walls or floors or connecting directly to ductwork. All bolted connections are made via integral bolted angle flanges.
The damper has been successfully tested to global international standards highlighted above.
The damper casing is formed from 3.0 mm thick sheet steel into a rigid channel section to ensure proper alignment of blades and shafts. Damper Units in excess of 3000mm width or height shall be manufactured as a multiple unit assembly. Where circular dampers or dampers with width or height dimensions less than 150 mm are required, additional spigot adaptors are used which increase the damper insertion length from 300 to 400 mm.
The blades are a formed double-skin aerofoil section of 1.5 mm sheet metal which operate on the ‘Firelock’ principle creating a 3-pass labyrinth between the blades which fire cannot penetrate. Blade stops at the top and bottom of the casing and sprung side seals provide excellent low leakage characteristics. Dependent on market sector or required certification of the Damper additional patented sealing and blade materials are utilized.
Continuous Ø 19.05 mm with blades plug welded at each end.
Part | Material | Finishing |
Case | Mill Galvanised Mild Steel | Mill Finish |
Case | Stainless Steel – 1.4307 (304L) Stainless Steel – 1.4404 (316L) |
Typically 2B finish |
Blades | Mill Galvanised Mild Steel | Mill Finish |
Blades | Stainless Steel – 1.4307 (304L) Stainless Steel – 1.4404 (316L) |
Typically 2B finish |
Shafts | Stainless Steel – 1.4307 (304L) Stainless Steel – 1.4404 (316L) |
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Bearings | Oil Impregnated Sintered Bronze (other options available on request) |
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Flamgard Calidair CFD-01 Fire and Smoke Dampers are available with the following actuators:
Damper control systems can be mounted within an enclosure to protect them from the elements and mechanical damage.
Dampers can be fitted with a with a range of controls components for safe and hazardous areas including suitable IP ratings where required.
For available options please contact sales team for more information.
Under normal operation, Fire Dampers will remain in the open position allowing for the ventilation of the associated areas. By definition, Fire Dampers must fail-safe closed to protect the rating of the fire division. This is typically achieved using a spring return system ensuring the damper closes even on loss of power.
Automatic operation in the event of a temperature rise in ductwork:
Additional operations may include
Please note the below table gives bare shaft damper weights only at the given square dimensions. Weights for specific sizes are issued on the quotation document.
Damper size (mm) | Est. weight | ||
Width/Dia. | Height | Depth | |
150 | 150 | 300 | 10 kg |
200 | 200 | 300 | 12 kg |
250 | 250 | 300 | 15 kg |
300 | 300 | 300 | 20 kg |
350 | 350 | 300 | 23 kg |
400 | 400 | 300 | 26 kg |
450 | 450 | 300 | 31 kg |
500 | 500 | 300 | 35 kg |
550 | 550 | 300 | 39 kg |
600 | 600 | 300 | 44 kg |
650 | 650 | 300 | 48 kg |
700 | 700 | 300 | 53 kg |
750 | 750 | 300 | 59 kg |
800 | 800 | 300 | 64 kg |
850 | 850 | 300 | 68 kg |
900 | 900 | 300 | 76 kg |
950 | 950 | 300 | 81 kg |
1000 | 1000 | 300 | 86 kg |
Dampers are typically provided with integral drilled flanges that allow for bolting to ductwork, structural divisions, wall sleeves and similar. Flanges and drillings can be to Flamgard standard or customer specification.
Dampers can be fitted in any orientation with airflow in either direction.
Installation and maintenance instructions can be provided with each damper delivery.