Fire Damper

Multi-Blade Fire Damper

Construction Insulation of Flange Connections

SPECIFICATIONS

FRAME

The damper frame shall be manufactured from galvanised steel. The frame is made from four parts and welded in the corners and the weld treated with zinc paint.

BLADES

Blades shall be roll from galvanised steel. The profile shall allow the blades to interlock in the form of a hinge and also to allow the blades to hang vertically. Blades shall be riveted to the frame. The number of blades supplied shall allow the curtain to fully fill the opening.

CLAMP BRACKET

Eight clamp brackets shall be supplied for each damper and fixed in location as shown on the drawings.

GUIDE

The guide shall be manufactured from galvanised steel and spot welded to the frame.

THERMALLY RELEASED LINK

The thermally released link provided shall be securely fixed with 0.8mm soft copper wire or steel rings to hold the blades in the open position.

WHEN ORDERING

Please supply following information:

(1) NORMAL WIDTH

(2) NOMINAL HEIGHT

(3) WALL TICKNESS

1. TO DETERMINE - CLERANCE AND OPENING SIZE

    Opening in walls or floors must be larger than the fire damper and sleeve to allow for heat expansion. Clerance required are 3mm per every 300mm of damper nominal width and height. To a maximum of 38mm and must be firesealed.

2. TO CONNECT - DAMPER SLEEVE TO DUCT SPIGOT

    Sleeve to duct spigot assemblies must be installed using angled on each side of the opening. Assemble first set of flanges on one side as shown. Align duct spigot between damper sleeve and flanges, tighten the bolts for all sides.

3. TO SECURE - ASSEMBLY TO OPENING

    Before mounting the fire damper and duct assembly to the opening, the air flow direction must be checked. Assemble second set of flanges at the other side of opening. Fit in duct spigot then the flanges bolts.

4. TO SET - DAMPER TO READY MODE

    Seal duct spigots to damper sleeve for all sides. Reset spring catch and fix blades to open position with fusible link. Pre operation test can be carried out if desired. Reset of spring catch and linkage must be done after testing.

NOTE

  • Flanges must be completely cover the clearence space between the damper and opening, overlapping the wall or floor of minimum 25mm for all corners.
  • Flanges should only sandwich the wall or floor slab and should not be fastened to it.
  • Flanges bolt heads must be from inside.

Installation of Fire Damper are required by all building codes to maintain the fire resistance ratings of walls, partitions and floors when they are penetrated by air ducts or other ventilation openings. Fire Dampers close automatically upon detection of heat usually by the melting of a fusible link 68 degree C, locking the opening and preventing the spread of fire.

Dynamic rated Fire Damper is a high performance with extremely low leakage damper. It carries both an air flow velocity rating and a pressure differential rating of up to 15 m/s and 2000 Pa respectively. The series Fire Dampers are tested and certified by national Association of Testing Authorities (NATA), Australia and Singapore Productivity and Standard's Board (PSB).

Pertangular Louvre Type Fire Damper - 4 Hrs Rated