DOUBLE

LAYER

INSULATED FIRE

RATED CURTAIN

IFRC 120 / 240

Our Delta Technology Insulated Fire Rated Curtain (IFRC) is tested up to 4 hours of fire rating integrity & 4 hours fire insulation under BS EN1634. Our double-layered curtain is designed to compartmentalize and seal off the toughest fire outbreak; offering maximum protection against fire.

 

Under normal circumstances, the IFRC is always in an open position to allow traffic to pass. When there is a fire outbreak, the curtains are closed via gravity via gravity through fusible link, or via fire alarm activation.

 

The IFRC features a single-drum system -  both the layers will roll up into a single barrel, forming only 1 drum. This greatly reduces the overhead shutter hood size and therefore only requires 1 motor to operate.

The IFRU is commonly used in commercial and residential buildings, building voids, substations, transformer and switch rooms, drop-off bays, underground passage ways, carpark lobbies, lift lobbies and train / bus depots etc.

FIRE

INSULATED

UP TO

15 × 8m

CURTAIN

  • 2 layers of thick, woven ceramic fiber cloth filled with ceramic insulation with an air-gap of 280mm in between

  • Curtain is 20mm thick 

  • Steel support is reinforced at intervals of 400mm to ensure sturdiness

SIDE GUIDE

  • Mild steel 'U'-shaped channel welded together

  • Overall nominal dimension of 60mm × 100mm × 1.5mm

BOTTOM BAR

  • Formed by 1.5mm thick mild steel 'I'-shaped channel 

  • Fitted on the bottom of the entire curtain

ROLLER BARREL

  • Single heavy-duty steel pipe which forms a single barrel

  • Drive assembly made up of steel circular plates fitted to steel solid shaft round bar

  • Circular plate with tri-legged slot on the other end

SHUTTER HOOD

  • Truss structure formed by 40mm × 40mm × 2.33mm steel square hollow section

  • Shutter hood is 760mm - 1140mm in height and 1020mm and 1440mm in depth

  • Driven sprocket is attached onto end plate with protruding tri-legged holder for barrel

  • Frame is cladded with minimum 0.8mm thickness steel sheet

MOTOR

  • 1 shutter is equipped with 1 motorized operator

  • Built-in limit switch

  • Built-in thermal protector,

  • Built-in brake release system,

  • Built-in manual hand-chain,

  • Cylinder lock 3-way push button (Up / Down / Stop) integrated in stainless steel cover

  • Limit switch ensures shutter stops automatically at desired levels

POWER REQUIREMENT

  • Single-phase 230V × 13amp, or 3-phase 415V × 20amp, 50 Hz each

  • Dependent on shutter size

OPERATING SYSTEM

  • Operated by using push button

  • Push button is located approximately 1.5m above floor level without counterbalance system

  • Can be operated manually by pulling the hand chain or cranking manual lever in the event of power failure

FUSIBLE LINK

  • Mechanical mechanism which activates shutter to close

  • When it melts at 69°C  the shutter descents via gravity and gradually stops upon closing for safety reasons