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CR60+MFUS • Circular fire dampers EI60S

  • Fire dampers
  • Circular
  • EI60S
  • With fuse 72°C
  • EN1366-2
  • Ø 100 - 315

Circular fire dampers with a fire resistance of 1 hours. When the temperature in the damper rises above 72 °C the fusible link will break and the damper will close. When closed, the expanding material around the fireblade will swell and assure a fire and air-tight seal against hot air and smoke. The tunnel is made out of galvanized steel. The CR60 + MFUS fire dampers have a manual operating mechanism with indication of the blade position. Optionally, an end and begin of range switch FDCU MFUS can be added to the mechanism. The operating mechanism can be removed easily, for inspection purposes or for replacing the fusible link.

Application

  • Fire compartimentation
  • To close and seal off ventilation ducts in case of fire
  • For air temperatures of -10°C up to temperature of fusible link
  • For air with RV 0-96%
  • Range of Ø100 up to Ø315 mm
  • To be mounted horizontally or vertically

Material

  • Galvanized steel

Construction

Composition

  • Galvanized steel tunnel with rubber duct sealing
  • Fibersilicate fireproof blade
  • Intumescent strip
  • Manual control mechanism MFUS with fusible link 72 °C

  • 1. Refractory casing (made out of galvanised steel)
  • 2. Damper blade
  • 3. Operating mechanism
  • 4. Rubber sealing ring
  • 5. Intumescent strip
  • 6. Mounting plate for thermo-electrical fuse (not used on manually controlled dampers)
  • 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

Certification

  • Classified EI90(ve,ho i<->o)S at 300Pa 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 07-A-057 / EFR-19-005411 or WFRG 16126
  • Airtight EN 1751 class C
  • CE marked

Accessories

  • Fire resistant plaster, type BP
  • End- and begin of range switch, type FDCU MFUS

Other available products

  • For bigger sizes see CR2 + CFTH

Text for tender

Copy
  • The fire dampers shall be of the round type with a fire resistance of 60 minutes, certified according to EN13501-3 . They will consist of a galvanized steel tunnel and fireproof fiber silicate valve. The control mechanism will be manually operated and shall have a blade position indicator and fusible link of 72 °C
  • type CR60 + MFUS

Order example

  • CR60 + MFUS, 160

Explanation

CR60 = Round fire damper

MFUS = Mechanism

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
150Q191254318382445509
Vk4.15.56.98.39.711
Ps369131823
Lw384245475052
160Q217289362434506579
Vk45.46.78.19.410.8
Ps358121622
Lw(A)374144464951
180Q275366458549641732
Vk3.95.26.57.89.110.4
Ps357101418
Lw374144464851
200Q339452565678791904
Vk3.85.16.37.68.910.1
Ps24691216
Lw(A)374143464850
250Q530707883106012361413
Vk3.64.867.28.49.6
Ps2346911
Lw364043454749
300Q76310171272152617802035
Vk3.54.75.878.29.3
Ps123467
Lw(A)353943444647
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

CR60+MFUS

ØD [mm]

ØD-1 [mm]

1/2ØD+13.5+60 [mm]

Ak [m²]

100

100

99

123.5

0.0047
125

125

124

136

0.0082
150

150

149

148.5

0.0128
160

160

159

153.5

0.0149
180

180

179

163.5

0.0195
200

200

199

173.5

0.0248

250

250

249

198.5

0.0407

300

300

299

223.5

0.0605

315

315

314

231

0.0672
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