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CR120+BFLT24 • Motorized circular fire dampers EI120S

  • Fire dampers
  • Circular
  • EI120S
  • Motorized
  • EN1366-2
  • BELIMO 24V
  • Ø 100 - 315

Circular fire dampers with a fire resistance of 120 minutes. When the temperature of the thermo-electric fuse in the damper rises above 72 °C the damper will close. When closed, the expanding material around the fireblade will assure a fire and air-tight seal against hot air and smoke. The tunnel is made out of galvanized steel. The CR120 + BFLT24 fire dampers have a automatic operating mechanism with actuator, with indication of the blade position. An end and begin of range switch is included within the actuator.

Application

  • Fire compartimentation
  • To close and seal off ventilation ducts in case of fire
  • For air temperatures of -10°C up to temperature of the thermo-electric fuse
  • For air with RV 0-96%
  • Range of Ø100 up to Ø315 mm
  • For Ø355 up to Ø630 see type CR2
  • To be mounted horizontally or vertically

Material

  • Galvanized steel

Construction

Composition

  • Galvanized steel tunnel
  • Fibersilicate fireproof blade
  • Intumescent strip
  • Belimo BFLT24 Actuator with thermo-electrical fuse

  • 1. Refractory casing made of galvanised steel
  • 2. Damper blade 20 mm
  • 3. Operating mechanism
  • 4. Rubber sealing ring
  • 5. Intumescent strip
  • 6. Mounting plate thermo-electric fuse
  • 7. Positioning plate
  • 8. Sealing ring damper blade

Mounting

  • To be inserted in fire resistant walls or floors and to be fixed according to the mounting instruction delivered with the valves.
  • To be connected with round air ducts
  • To be electrically wired to the fire detection system or building system

Certification

  • Classified EI120(ve,ho i<->o)S at 500Pa according EN 13501-3 in ridid wall and rigid floor
  • Classified EI60(ve i<->o)S at 500Pa according EN 13501-3 in flexible wall
  • Certified with test report Efectis 09-A-087 / EFR-19-005412 or WFRG 16127
  • Airtight EN 1751 class C
  • CE marked

Accessories

  • Fire resistant plaster, type BP

Other available products

  • For bigger sizes see CR2 + BFLT/BFNT 24

Text for tender

Copy
  • The fire dampers shall be of the round type with a fire resistance of 120 minutes, certified according to EN13501-3 . They will consist of a galvanized steel tunnel and fireproof fiber silicate valve. The control mechanism will be automatically operated by means of an actuator and shall have a blade position indicator and thermo-electrical link of 72 °C
  • type CR120 + BFLT24

Order example

  • CR120 + BFLT24, 160

Explanation

CR120 = Round fire damper with fire resistance of 120 minutes

BFLT24 = Actuator 24V with thermo-electrical fuse

160 = Connection diameter

Quick selection

Dia v 345678
100Q85113141170198226
Vk56.78.31011.713.4
Ps5813192633
Lw(A)414547505254
125Q132177221265309353
Vk4.567.5910.512
Ps4711162128
Lw(A)384346485152
160Q217289362434506579
Vk45.46.78.19.410.8
Ps358121622
Lw(A)374144464951
200Q339452565678791904
Vk3.85.16.37.68.910.1
Ps24691216
Lw(A)374143464850
250Q530707883106012361413
Vk3.64.867.28.49.6
Ps2346911
Lw(A)364043454749
315Q84111221402168219632243
Vk3.54.65.878.19.3
Ps123457
Lw(A)353943444647

Symbols and specifications

  • v = Air velocity in the duct in m/s
  • Q = Air volume in m³/h
  • Vk = Effective velocity through the damper in m/s
  • Ps = Static pressure in Pa
  • Lw(A) = Acoustic power in dB(A)
  • Dia = Duct diameter in mm

Dimensions

CR120+BFLT24

ØD [mm]

ØD-1 [mm]

1/2ØD+76.5 [mm]

Ak [m²]

100

100

99

126.5

0.0047
125

125

124

139

0.0082
160

160

159

156.5

0.0149
200

200

199

176.5

0.0248

250

250

249

201.5

0.0407

315

315

314

234

0.0672

Electrical connection

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