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CR2+CFTH • Circular fire dampers EI120S

  • Fire dampers
  • Circular
  • EI120S
  • With fuse 72°C
  • EN1366-2
  • Ø 355 - 630

Circular fire dampers with a fire resistance of 120 minutes. 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 CR2 + CFTH fire dampers have a manual operating mechanism with indication of the blade position. Optionally, an end or begin of range switch FDC CFTH 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 Ø355 up to Ø630 mm
  • For size Ø100 upto Ø315 see type CR120 + MFUS
  • To be mounted horizontally or vertically

Material

  • Galvanized steel

Construction

Composition

  • Galvanized steel tunnel
  • Fireproof blade in fibersilicate
  • Intumescent strip around the valve
  • Manual control mechanism CFTH with fusible link 72 °C

  • 1. Refractory casing (made out of galvanised steel)
  • 2. Damper blade
  • 3. Operating mechanism
  • 4. Sealing cold smoke
  • 5. Blade bumper
  • 6. Intumescent strip
  • 7. Fusible link 72°C
  • 8. Rubber sealing ring
  • 9. Handle for deactivation
  • 10. Allen key for arming

Mounting

  • To be inserted in fire resistant walls or floors according to the mounting instructions delivered with the valves
  • To be connected with round air ducts

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, EI90(ve i<->o)S at 300Pa and EI120(ve i<->o)S at 500Pa according EN 13501-3 in different flexible wall types
  • Certified with test report Efectis 10-A-459 / EFR-19-005409 or WFRG 16128
  • Airtight EN 1751 class B, Class C upon request
  • CE marked

Accessories

  • Fire resistant plaster, type BP
  • End- or begin of range switch, type FDC CFTH (available as KIT or premounted)

Text for tender

Kopiëren
  • The fire dampers shall be of the round type with a fire resistance of 120 minutes, certified according to EN 13501-3 . They will consist of a galvanized steel tunnel and fireproof valve. The control mechanism will be manually operated and shall have a blade position indicator and fusible link of 72 °C
  • ATC
  • type CR2 + CFTH

Order example

  • CR2 + CFTH, 355

Explanation

CR2 = Round fire damper 120 Minutes

CFTH = Mechanism

355 = Connection diameter

Quick selection

øDAkv
1
2
3
4
5
6
7
8
200
0.013Q
113
226
339
452
566
679
792
905
Vk
2.40
4.90
7.30
9.70
12.20
14.60
17.02
19.40
Ps
4.50
17.80
40
71
111
160
218
285
Lw(A)
30
40
46
50
53
56
58
60
2500.025Q
177
353
530
707
884
1060
1237
1414
Vk
1.90
3.90
5.80
7.80
9.70
11.70
13.60
15.50
Ps
2
10
21
38
59
86
116
152
Lw(A)
28
38
44
49
52
55
57
59
3150.047Q
281
561
842
1122
1403
1683
1964
2244
Vk
1.70
3.30
5
6.60
8.30
9.90
11.60
13.20
Ps
1
5
12
21
33
47
64
83
Lw(A)
27
37
43
47
50
53
55
57
3550.064Q
356
713
1069
1425
1782
2138
2494
2851
Vk
1.50
3.10
4.60
6.20
7.70
9.30
10.80
12.40
Ps
1
4
9
16
24
35
48
62
Lw(A)
26
36
42
47
50
52
55
57
4000.086Q
452
905
1357
1810
2262
2714
3167
3619
Vk
1.50
2.90
4.40
5.90
7.30
8.80
10.20
11.70
Ps
1
3
7
12
18
26
36
46
Lw(A)
25
36
42
46
49
52
54
56
4500.114Q
573
1145
1718
2290
2863
3435
4008
4580
Vk
1.40
2.80
4.20
5.60
7
8.40
9.80
11.20
Ps
1
2
5
9
14
20
27
35
Lw(A)
25
35
41
45
48
51
53
55
5000.146Q
707
1414
2121
2827
3534
4241
4948
5655
Vk
1.30
2.70
4
5.40
6.70
8.10
9.40
10.80
Ps
0
2
4
7
11
16
21
28
Lw(A)
24
34
40
45
48
51
53
55
5600.189Q
887
1773
2660
3547
4433
5320
6207
7093
Vk
1.30
2.60
3.90
5.20
6.50
7.80
9.10
10.40
Ps
0
1
3
5
8
12
16
22
Lw(A)
24
34
40
44
47
50
52
54
6300.247Q
1122
2244
3367
4489
5611
6733
7855
8978
Vk
1.30
2.50
3.80
5
6.30
7.60
8.80
10.10
Ps
0
1
2
4
7
10
14
18
Lw(A)
23
33
39
43
47
49
52
54

Symbols and specifications

  • Ak = Effective area in m²
  • 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

P

Q

Z (H<315)

Z (H>=315)

x

y

CR2 + CFTH

65

180

60

155

=(ØD/2)-265

=(ØD/2)-134
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