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SC120 • Fireproof butterfly dampers Rf2h

  • Fireproof butterfly dampers
  • Circular
  • EI120S
  • With fuse 70°C
  • EN1366-2

ATC fire dampers SC120 offer a solution for small diameters (100 – 200 mm.). Two half round blades are held together by a fusible link. When the temperature rises above 70°C the fusible link will melt and break. Thereby the two half blades are released and the fire damper is shut, preventing smoke or flames from passing through

Application

  • Closing ventilation ducts in case of fire
  • Mounted in concrete wall, floor, ceiling or light partition wall
  • Fire resistant for 2 hours
  • For air of 15°C up to 45°C
  • For air with RV 30-70%
  • To be mounted horizontally or vertically
  • Range 100 – 200 mm (to be used in Belgium only in size 100 and 125)

Material

  • Steel

Construction

Composition

  • 1. Tunnel in steel
  • 2. Two half round blades
  • 3. Intumescent strip around the tunnel
  • 4. Rubber sealing ring
  • 5. Fusible link 70°C
  • 6. 2 blocking hooks
  • 7. End of range switch (option)
  • 8. Product identification

Mounting

  • To be inserted in round ducts, passing fireproof walls or floors

Certification

  • Approved according EN 1366-2

Accessories

  • FCU SC end of range switch

Text for tender

Copy
  • Circular fireproof butterfly damper for installation in ventilation ducts passing through a construction element in order to stop the propagation of fire. Fire resistance up to 2 hours.
  • ATC
  • type SC120

Order example

  • SC120, 125

Explanation

SC120 = Round butterfly fire damper Rf 120 minutes

125 = duct diameter

Dimensions

ØdØd-1,5X
100100

98.5

20

125125

123.5

33

160160

158.5

51

200200

198.5

71

Diav345678

100

Qv85113141170198226

Veff

6.108.1010.2012.2014.2016.30
Ps192841567494
Lw323842454850

125

Qv133177221265309353

Veff

5.106.808.5010.1011.8013.50
Ps152129395165
Lw303540434648

160

Qv217290362434507579

Veff

4.405.907.408.8010.3011.80
Ps121622293746
Lw283337414446

200

Qv339452566679792905

Veff

45.406.708.109.4010.80
Ps101418232935
Lw263135394244

Symbols and specifications

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