FD-C • Circular Single Blade Fire and Volume Control Damper

Circular Single Blade Fire and Volume Control Damper

The FD-C Manual Operation Single Blade Fire Damper with volume control facility has been designed specifically for installations where space is at a premium. The testing and resetting of the damper and thermal fuse external of the duct allows for ease of commissioning and maintenance. NB: Access panels may be required to comply with DW145 G.3.1.5. The installation plate, with its engineered installation perforations, acts as a template to allow the marking of the fixing positions on the surface of the structure to which the plate will be affixed, allowing for a quick and efficient install.

• Galvanised mild steel to BS EN 10346 DX 51D Z275 0.8 0.1mm

• Case
  Galvanised mild steel to BS EN 10346 DX 51D Z275 0.8 0.1mm. Damper casing conforms to BS EN 1506.
  

• Fusible Link
  Fusible link externally replaceable rated at 72°C has been designed to eliminate linear creep of the solder joint. The thermal link is screwed into position via the 12.5mm diameter brass holder activating the locking assembly from outside the case in any position from fully open to fully closed, allowing air balance during the commissioning of the ducted system.
  

• Handle
  The handle is an 8mm dia. Preformed 400 series ferritic stainless steel rod that allows the setting of the damper to any set point or fully open position. The blade angle is shown via the graduated affixed label.
  

• Installation Plate
  The installation plate allows the damper to be fixed into place from one side only with no infill material required on the non-handle side. Use either of the two appropriate 5mm dia. Corner fixing holes and all of the 5mm dia. mid span fixing holes to secure the plate into position.
  

• Blade Seal (patented)
  Layered glass woven sheets and central intumescent disc to a patented design that allows the blade assembly to be of minimal thickness, thus minimising pressure loss with fully open damper, and an effective seal when fully closed to comply with EN 1366-2 achieving ES classification.
  

• Blade
  Galvanised 1.2mm one piece circular steel discs either side of the patented seal design providing a 5mm thick assembly affixed by blade brackets to the reset handle.

• Conforms to fire damper product standard EN15650
• ES classified fire dampers with reduced smoke leakage characteristics EN 13501-3
• Aerodynamically Air Control tested to BS EN 1751
• Tested installation methods in differing supporting constructions (BS EN 1366-2)
• Integrated volume control capability
• Replaceable fusible link from outside of the ductwork
• Commissioning friendly
• External blade position indicator
• Damper casing sizes and tolerances conform to BS EN 1506

MS = Single Pole Micro Switch
R-CL = Rotatable Cleat