FD Series • Fire dampers

Fire dampers

The FD Series Steel Curtain Fire Damper is designed to stop the spread of fire through ducts, walls, floors and ceilings. The product range has many features and options to meet the requirements of specifiers, contractors, local and national authorities. Dampers are available to suit both low/medium and high velocity applications.

• Galvanised and stainless steel options
  

• Blades
  Formed to provide a continuous interlocking hinge extending the full length with dual swages providing maximum strength and rigidity. Nominally 0.7mm (22swg) thick cold reduced hot dipped galvanised mild steel to BS EN 10346 Grade DX51D + Z275. Blade material options to order are Ferritic 430 type 1.4016 grade or Austenitic 316 type 1.4401 grade to BS EN 10088-2.
  

• Microswitches
  All BSB FD Fire Dampers are available with factory fitted single pole microswitches as optional extras. (See page 13)
  

• Mechanical Visual Indicator
  Local visual indication of the blade status is available as an optional extra.
  

• Pull Ring
  To aid resetting of the damper blade pack, the bottom closing blade will be fitted with a single pull ring centrally to the width for dampers up to and including 500mm wide or 500mm diameter. For all dimensions above this, two equally spaced pull rings will be fitted.
  

• Gate Latch Release
  Optional mechanism for electrical release when required. Rated 72°C (162°F).
  

• Paint
  All welds are cleaned and sprayed with commercial grade water based protective paint.
  

• Casing
  Formed to provide two continuous internal flanges not less than 30mm. Casing and components not less than 1.2mm thick cold reduced hot dipped galvanised mild steel to BS EN 10346 Grade DX51D + Z275. Casing material options to order are Ferritic 430 type 1.4016 grade or Austenitic 316 type 1.4401 grade to BS EN 10088-2.
  

• Closure Springs
  Dampers are supplied with two constant force coil springs exerting a pull of not less than 35N, with one end fixed to the leading blade by rivets and the coil fitted on the spindle of the locking ramp. The spring is manufactured from Grade 302 stainless steel to BS EN 10151.
  

• Locking Ramps
  Dual locking ramps ensure positive closing action of the blade pack in horizontal or vertical installations.

• Complies to BS EN 15650
• Tested installation methods in differing supporting constructions (BS EN 1366-2)
• E classified fire dampers complying with BS EN 13501-3
• FD-AF has been tested both vertically and horizontally. It is installed using single side access without the need to provide fire rated infill material
• Galvanised and stainless steel options
• Microswitch option for remote indication