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CR2+BFLT/BFNT 24 • Motorized circular fire dampers EI120S

Fire dampers
Circular
EI120S
Motorized
EN1366-2
BELIMO 24V
Ø 355 - 630

Datasheet Certificates / Fire certificates / Declaration of performance

Motorized 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 CR2 + BFLT/BFNT 24 fire dampers have a motorized operating mechanism with indication of the blade position including begin of range or end switch.

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 Ø355 up to Ø630 mm
For size Ø100 up to Ø315 see type CR120
To be mounted horizontally or vertically

Material

Galvanized steel

Construction

Composition

Galvanized steel tunnel

Fireproof blade in fibersilicate
Intumescent strip around the valve
24V Actuator BELIMO BFLT 24 (small valves) of BFNT 24 (other sizes)

1. Steel tunnel
2. Damper blade
3. Operating mechanism with:
- manual rearmation option
- blade position indicator
4. Cold packing
5. Blade bumper
6. Intumescent strip
7. Thermo-electric fuse
8. Rubber sealing

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
To be electrically wired to the fire detection or building installation

Certification

Classified EI120(v_e,h_o i<->o)S at 500Pa according EN 13501-3 in ridid wall and rigid floor
Classified EI60(v_e i<->o)S at 500Pa, EI90(v_e i<->o)S at 300Pa and EI120(v_e 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

Text for tender

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 automatically operated by means of an actuator and shall have a blade position indicator and thermo-electrical fusible link of 72 °C
type CR2 + BFLT/BFNT 24

Order example

CR2 + BFLT 24, 315

Explanation

CR2 = Round fire damper 120 Minutes

BFLT 24 = Actuator 24V with thermostatic fuse

315 = Connection diameter

Quick selection

øD	Ak	v	1	2	3	4	5	6	7	8
200	0.013	Q	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
250	0.025	Q	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
315	0.047	Q	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
355	0.064	Q	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
400	0.086	Q	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
450	0.114	Q	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
500	0.146	Q	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
560	0.189	Q	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
630	0.247	Q	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<300)	Z (H>=300)	x	y
CR2 + BFLT/BFNT 24	110	210	80	180	=(ØD/2)-265	=(ØD/2)-134

Electrical connection

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	Introduction

A	Products for air diffusion

B	Valves & volume control dampers

C	Air duct systems

D	Air duct components and accessories

E	Fireproof products

	E01	Fire dampers

	E02	Fire resistant grilles

	E03	Fireproof air valves

	E04	Fireproof collars

	E05	Fireproof strips

	E08	Fire retardant sealing products

F	Insulating products

G	Air filters

I	Fans & ventilation systems

J	Air handling, air conditioning and heatpumps


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