FK2-EU

FK2-EU with Belimo spring return actuator (fig. size 2)

FK2-EU with fusible link for 72 °C or 95 °C

CE compliant according to European regulations

With TROXNETCOM as an option

ATEX certification

Tested to VDI 6022

FK2-EU

For diverse applications

Nominal sizes 200 × 100 – 1500 × 800 mm, can be ordered in increments of 1 mm
Low differential pressure and sound power level
Explosion-proof construction (ATEX) as an option
Optionally available as an upstream shutter of an air transfer unit
Can also be used as an air transfer damper
Optional stainless steel casing or powder-coated casing for increased corrosion protection
Optionally available with thermal insulation to prevent condensation
Integration into the central BMS with TROXNETCOM
Universal installation options

Optional equipment and accessories

Electric actuator 24 V/230 V
Release temperature 72/95 °C

Useful additions

Duct smoke detectors

General information

Application

Fire dampers with CE marking and declaration of performance, for the isolation of duct penetrations between two fire compartments in the event of a fire
To prevent the propagation of fire and smoke through ductwork to adjacent designated fire compartments

Special features

Declaration of performance in accordance with European Construction Products Regulation

Classification according to EN 13501-3, up to EI 240 (v_e, h_o, i ↔ o) S

Complies with the requirements of EN 15650

Tested for fire resistance properties in accordance with EN 1366-2 (300 Pa and 500 Pa negative pressure)

Certified mortar-based installation with reduced distances of 40 mm to supporting components or 60 mm between two fire dampers (flange to flange)

Perimeter gap may be up to 225 mm for mortar-based installation

2 inspection accesses with bayonet fixing for single-handed operation

Meets the hygiene requirements of VDI 6022-1, VDI 3803-1, DIN 1946-4, EN 13779, of Ö-Norm H 6020 and H 6021, and of SWKI

Corrosion protection according to EN 15650 in connection with EN 60068-2-52

Closed blade air leakage to EN 1751, class 2

Casing air leakage to EN 1751, class C (B + H ≤700, class B)

Low differential pressure and sound power level

Any airflow direction

Integration into the central building management system with the international standard fire damper system in accordance with IEC 62026-2 with AS interface is possible

Classification
Performance class up to EN 13501-3, up to EI 240 (v_e, h_o, i ↔ o) S

Nominal sizes

B × H: 200 × 100 – 1500 × 800 mm (Intermediate sizes can be ordered in 1 mm increments)

L: 305 mm or 500 mm

Variants

With fusible link
With fusible link for use in potentially explosive atmospheres
With spring return actuator
With spring return actuator for use in potentially explosive atmospheres
With spring return actuator and duct smoke detector
With cover grille on both sides as an upstream shutter of an air transfer unit
With spring return actuator, duct smoke detector and cover grilles at both ends for use as an air transfer damper according to general building inspectorate licence Z-6.50-2540

The following applies to Germany:

If fire dampers with a purely mechanical shut-off element are to be used as an upstream shutter of an air transfer unit, the local building regulations must be observed. Usually the use of such upstream shutters of air transfer units is restricted to pressure differential systems.

Parts and characteristics

Release temperature 72 °C or 95 °C (for use in warm air ventilation systems)

Single-handed operation

Explosion-proof constructions for zones 1, 2, 21, 22

Attachments

Limit switch for damper blade position indication
Spring return actuator for 24 V AC/DC or 230 V AC supply voltage
Limit switch for damper blade position indication for use in potentially explosive atmospheres
Spring return actuator for 24 – 230 V supply voltage, for use in potentially explosive atmospheres
Network module for the integration with AS-i or LON networks
Spring return actuator and wired duct smoke detector with 230 VAC, 50/60 Hz or 24 VDC supply voltage
All attachments can be retrofitted

Accessories

Installation kit ES for dry mortarless installation in lightweight partition walls, compartment walls, safety partition walls and radiation protection walls with metal support structures or steel support structures, and cladding on both sides

Installation kit ES for dry mortarless installation in timber stud walls/half-timbered construction as well as solid wood and cross laminated timber walls

Installation kit ES for dry mortarless installation in shaft walls with metal support structure or steel support structure as well as shaft walls without metal support structure

Installation kit ES for dry mortarless installation in wooden beam ceilings and solid wood ceilings

Installation kit E3 for dry mortarless installation in solid walls in an existing installation subframe E1/E2 of the FK-K90 or FK-EU

Installation kit EW for dry mortarless installation in solid walls with installation subframe

Installation kit GM for installation into solid non-load-bearing walls with flexible ceiling joint

Installation kit WA for dry mortarless installation on the face of solid walls and ceiling slabs

Installation kit WE for dry mortarless installation remote from solid walls, remote from solid ceiling slabs, and remote from lightweight partition walls with metal support structure and cladding on both sides

Installation kit GL for dry mortarless installation in lightweight partition walls with metal support, cladding on both sides and flexible ceiling joint

Cover grille

Flexible connectors

Circular spigots

Profile connecting frame

Useful additions

Duct smoke detector RM-O-3-D

Duct smoke detector with airflow monitor RM-O-VS-D

Construction features

Rectangular or square construction, rigid casing, both flanges with fixing holes

Suitable for the connection of ducts, cover grilles, spigots, flexible connectors or profile connecting frames

The release mechanism is accessible and can be tested from the outside

2 inspection access panels, Ø110 mm, which can be opened without any tools

Remote control with spring return actuator

Materials and surfaces

TROX casing:

Galvanised sheet steel

Galvanised sheet steel, powder-coated RAL 7001

Stainless steel 1.4301

Damper blade:

Special insulation material

Special insulation material with impregnation

ODA construction:

Damper casing made of galvanised sheet steel with powder coating and thermal insulation, damper blade made of special insulating material with impregnation (only in conjunction with spring return actuator)

Other components:

Damper blade shafts and drive linkage made of galvanised steel, in constructions -1 and -2 made of stainless steel

Plastic bearings

EPDM and TPE seals

The construction variants with stainless steel or powder-coated casing meet even more critical requirements for corrosion protection. Detailed listing on request.

Standards and guidelines

Construction Products Regulation

EN 15650 Ventilation for buildings – Fire dampers

EN 1366-2 Fire resistance tests for service installations – Fire dampers

EN 13501-3 Fire classification of construction products and building elements

EN 1751 Ventilation for buildings – Air terminal devices

2006/42/EC – Machinery Directive

Supply package

If attachments and accessories are supplied from the factory with the fire dampers, they are already taken into account in the order code. Depending on the installation situations, supplementary materials for assembly and fixing may be needed to ensure proper installation, e.g. mortar, screws, mineral wool, etc. Such materials are not included in the supply package, unless they are expressly described as included in the supply package. The selection of additional attachments or accessories as well as the identification and provision of materials for assembly and fixing is the responsibility of those involved in the building project and must be done taking into account the required classification.

Maintenance

The functional reliability of the fire damper must be tested at least every six months; this has to be arranged by the owner of the ventilation system; functional tests must be carried out in compliance with the basic maintenance principles stated in EN 13306 and DIN 31051. If 2 consecutive tests, one 6 months after the other, are successful, the next test on the fire damper can be conducted one year later.
A functional test involves closing the damper blade and opening it again; with a spring return actuator this can be done via remote control

Fire dampers must be included in the regular cleaning schedule for the ventilation system

For details on functional tests, maintenance and inspection, refer to the installation and operating manual

Technical data

Nominal sizes: 200 × 100 to 1500 × 800 mm

Casing lengths: 305 and 500 mm

Volume flow rate range: up to 14400 l/s / up to 51840 m³/h

Differential pressure: up to 2000 Pa

Temperature range: -20 – 50 °C

Upstream velocity*: Standard construction ≤ 8 m/s, construction with spring return actuator ≤ 12 m/s, construction with explosion-proof actuator ExMax/RedMax-15-BF TR ≤ 10 m/s

* Data applies to uniform upstream and downstream conditions for the fire damper

Incorrect use:

Without specially approved attachments in areas with potentially explosive atmospheres

As a smoke control damper

Outdoors without sufficient protection against the effects of weather

In atmospheres where chemical reactions, whether planned or unplanned, may cause damage to the fire damper or lead to corrosion

The following applies to installation in Germany:

Do not use it in extract air systems in commercial kitchens

Use as air transfer damper only according to general type approval Z-6.50-2540

Do not use in combined penetration seal

Approvals under building regulations may be required for the use of upstream shutters of air transfer units. This must be checked and applied for by others

Flame-resistant building materials that form no dripping droplets (elastomer foams) have to be at least of fire rating class C - s2, d0 according to the German M‑VV TB (since 2019/01) guideline. The applicable national building regulations must be adhered to.

Technical information

Function, Technical Data, Quick sizing, Specification Text, Order Code

Functional describtion Nominal sizes

¹⁾Arrangement of the spring return actuator:

[A] = horizontally arranged

[B] = vertically arranged

In the event of a fire, fire dampers shut automatically to prevent the propagation of fire and smoke through ductwork to adjacent designated fire compartments. In the event of a fire, the damper is triggered at 72 °C or at 95 °C (use in warm air ventilation systems) by a fusible link. The release mechanism is accessible and can be tested from the outside.

One or two limit switches (optional attachment) can be used to indicate the damper blade position.

Nominal sizes	200 × 100 – 1500 × 800 mm ⁴
Casing lengths	305 and 500 mm
Volume flow rate range	Up to 14400 l/s or 51840 m³/h
Differential pressure range	Up to 2000 Pa
Temperature range ^{1, 3}	-20 to 50 °C
Release temperature	72 °C or 95 °C (for warm air ventilation systems)
Upstream velocity ²	Standard construction ≤ 8 m/s, Construction with spring return actuator ≤ 12 m/s, Construction with explosion-proof actuator ExMax/RedMax-15-BF TR ≤ 10 m/s

¹ Temperatures may differ for units with attachments. Details for other applications are available on request.
² Data applies to uniform upstream and downstream conditions for the fire dampers.
³ Condensation and the intake of humid fresh air have to be avoided as otherwise operation will be impaired or not be possible.
⁴ Damper blade with lip seal for sizes 1 and 2, damper blade with travel stop seal for size 3.

Sizes see functional description

Free area and resistance coefficient, width 200 – 800 mm

H	(1)	B
H	(1)	200	250	300	350	400	450	500	550	600	650	700	750	800
100	A [m²]	0.013	0.016	0.02	0.023	0.027	0.03	0.034	0.037	0.041	0.044	0.048	0.051	0.055
100	ζ	1.05	0.96	0.88	0.83	0.78	0.75	0.71	0.69	0.66	0.64	0.62	0.61	0.59
125	A [m²]	0.0175	0.0222	0.027	0.0317	0.0365	0.0412	0.046	0.0507	0.0555	0.0602	0.065	0.0697	0.0745
125	ζ	0.93	0.85	0.78	0.73	0.69	0.66	0.63	0.61	0.59	0.57	0.55	0.54	0.52
150	A [m²]	0.0221	0.0281	0.0341	0.0401	0.0461	0.0521	0.0581	0.0641	0.0701	0.0761	0.0821	0.0881	0.0941
150	ζ	0.85	0.77	0.71	0.67	0.63	0.6	0.58	0.55	0.54	0.52	0.5	0.49	0.48
160	A [m²]	0.024	0.03	0.037	0.043	0.05	0.056	0.063	0.069	0.076	0.082	0.089	0.095	0.102
160	ζ	0.66	0.6	0.55	0.52	0.49	0.47	0.45	0.43	0.41	0.4	0.39	0.38	0.37
200	A [m²]	0.031	0.04	0.048	0.057	0.065	0.074	0.082	0.091	0.099	0.108	0.116	0.125	0.133
200	ζ	0.74	0.67	0.62	0.58	0.55	0.52	0.5	0.48	0.47	0.45	0.44	0.43	0.41
250	A [m²]	0.0397	0.0507	0.0617	0.0727	0.0837	0.0947	0.1057	0.1167	0.1277	0.1387	0.1497	0.1607	0.1717
250	ζ	0.67	0.61	0.56	0.53	0.5	0.47	0.45	0.44	0.42	0.41	0.4	0.38	0.37
300	A [m²]	0.0489	0.0624	0.0759	0.0894	0.1029	0.1164	0.1299	0.1434	0.1569	0.1704	0.1839	0.1974	0.2109
300	ζ	0.62	0.56	0.52	0.49	0.46	0.44	0.42	0.4	0.39	0.38	0.36	0.35	0.34
350	A [m²]	0.0581	0.0741	0.0901	0.1061	0.1221	0.1381	0.1541	0.1701	0.1861	0.2021	0.2181	0.2341	0.2501
350	ζ	0.58	0.52	0.48	0.45	0.43	0.41	0.39	0.38	0.36	0.35	0.34	0.33	0.32
400	A [m²]	0.0673	0.0858	0.1043	0.1228	0.1413	0.1598	0.1783	0.1968	0.2153	0.2338	0.2523	0.2708	0.2893
400	ζ	0.54	0.49	0.46	0.43	0.4	0.39	0.37	0.35	0.34	0.33	0.32	0.31	0.3
450	A [m²]	0.0765	0.0975	0.1185	0.1395	0.1605	0.1815	0.2025	0.2235	0.2445	0.2355	0.2548	0.2741	0.2934
450	ζ	0.57	0.51	0.47	0.43	0.41	0.39	0.37	0.35	0.34	0.33	0.32	0.31	0.3
500	A [m²]	0.0857	0.1092	0.1327	0.1562	0.1797	0.2032	0.2267	0.2502	0.2737	0.266	0.2878	0.3096	0.3314
500	ζ	0.54	0.48	0.44	0.41	0.39	0.37	0.35	0.34	0.33	0.31	0.3	0.3	0.29
550	A [m²]			0.1264	0.1507	0.175	0.1993	0.2236	0.2479	0.2722	0.2965	0.3208	0.3451	0.3694
550	ζ			0.42	0.4	0.37	0.35	0.34	0.32	0.31	0.3	0.29	0.28	0.28
600	A [m²]			0.1394	0.1662	0.193	0.2198	0.2466	0.2734	0.3002	0.327	0.3538	0.3806	0.4074
600	ζ			0.41	0.38	0.36	0.34	0.32	0.31	0.3	0.29	0.28	0.27	0.27
650	A [m²]			0.1524	0.1817	0.211	0.2403	0.2696	0.2989	0.3282	0.3575	0.3868	0.4161	0.4454
650	ζ			0.39	0.37	0.35	0.33	0.31	0.3	0.29	0.28	0.27	0.26	0.26
700	A [m²]			0.1654	0.1972	0.229	0.2608	0.2926	0.3244	0.3562	0.388	0.4198	0.4516	0.4834
700	ζ			0.38	0.35	0.33	0.32	0.3	0.29	0.28	0.27	0.26	0.25	0.25
750	A [m²]			0.1784	0.2127	0.247	0.2813	0.3156	0.3499	0.3842	0.4185	0.4528	0.4871	0.5214
750	ζ			0.37	0.34	0.32	0.31	0.29	0.28	0.27	0.26	0.25	0.25	0.24
800	A [m²]			0.1914	0.2282	0.265	0.3018	0.3386	0.3754	0.4122	0.449	0.4858	0.5226	0.5594
800	ζ			0.36	0.33	0.32	0.3	0.29	0.27	0.26	0.26	0.25	0.24	0.23

(1) Parameter

Free area and resistance coefficient, width 850 – 1500 mm

H	Parameter	B
H	Parameter	900	1000	1100	1200	1300	1400	1500
200	A [m²]	0.117	0.1665	0.1442	0.1578	0.1714	0.185	0.1986
200	ζ	0.44	0.42	0.40	0.39	0.38	0.36	0.35
250	A [m²]	0.16	0.2157	0.1972	0.2158	0.2344	0.253	0.2716
250	ζ	0.39	0.37	0.35	0.34	0.33	0.32	0.31
300	A [m²]	0.203	0.2649	0.2502	0.2738	0.2974	0.321	0.3446
300	ζ	0.35	0.34	0.32	0.31	0.30	0.29	0.28
350	A [m²]	0.246	0.2746	0.3032	0.3318	0.3604	0.389	0.4176
350	ζ	0.32	0.31	0.30	0.29	0.28	0.27	0.26
400	A [m²]	0.289	0.3226	0.3562	0.3898	0.4234	0.457	0.4906
400	ζ	0.30	0.29	0.28	0.27	0.26	0.25	0.25
450	A [m²]	0.332	0.3706	0.4092	0.4478	0.4864	0.525	0.5636
450	ζ	0.29	0.28	0.26	0.26	0.25	0.24	0.23
500	A [m²]	0.375	0.4186	0.4622	0.5058	0.5494	0.593	0.6366
500	ζ	0.27	0.26	0.25	0.24	0.24	0.23	0.22
550	A [m²]	0.418	0.4666	0.5152	0.5638	0.6124	0.661	0.7096
550	ζ	0.26	0.25	0.24	0.23	0.23	0.22	0.21
600	A [m²]	0.461	0.5146	0.5682	0.6218	0.6754	0.729	0.7826
600	ζ	0.25	0.24	0.23	0.22	0.22	0.21	0.20
650	A [m²]	0.504	0.5626	0.6212	0.6798	0.7384	0.797	0.8556
650	ζ	0.24	0.23	0.22	0.22	0.21	0.20	0.20
700	A [m²]	0.547	0.6106	0.6742	0.7378	0.8014	0.865	0.9286
700	ζ	0.24	0.23	0.22	0.21	0.20	0.20	0.19
750	A [m²]	0.59	0.6586	0.7272	0.7958	0.8644	0.933	1.0016
750	ζ	0.23	0.22	0.21	0.20	0.20	0.19	0.19
800	A [m²]	0.633	0.7066	0.7802	0.8538	0.9274	1.01	1.0746
800	ζ	0.22	0.21	0.20	0.20	0.19	0.19	0.18

① Parameter

Quick sizing tables provide a good overview of the volume flow rates with different sound power levels as well as of differential pressures of up to 35 Pa. Approximate intermediate values can be interpolated. Precise intermediate values can be calculated with our Easy Product Finder design program. You can find this on our website at:
www.trox.de/mytrox/auslegungsprogramm-easy-poduct-finder-182e16348fac3d33

Volume flow rate q_v in [m³/h] for differential pressure Δp_st 35 Pa
200 – 650 mm

H	L_WA [dB(A)]	B
H	L_WA [dB(A)]	200	250	300	350	400	450	500	550	600	650
100	35	390	484	577	668	759	849	938	1027	1116	1205
125	35	507	627	745	862	978	1093	1208	1322	1435	1548
150	35	619	764	907	1048	1188	1326	1464	1601	1737	1873
160	35	728	897	1063	1227	1390	1550	1710	1869	2027	2185
200	35	835	1028	1216	1402	1586	1769	1950	2130	2309	2487
250	35	1026	1264	1496	1725	1951	2174	2396	2616	2835	3053
300	35	1232	1512	1786	2056	2321	2584	2844	3103	3360	3615
350	35	1434	1757	2071	2379	2683	2984	3281	3577	3870	4161
400	35	1634	1997	2351	2698	3039	3377	3710	4041	4369	4696
450	35	1474	1856	2225	2585	2938	3286	3629	3969	4305	4640
500	35	1647	2071	2480	2878	3269	3652	4031	4406	4778	5146
550	35			2733	3169	3595	4015	4429	4838	5243	5645
600	35			2983	3456	3919	4374	4823	5266	5704	6139
650	35			3232	3742	4241	4730	5213	5689	6160	6627
700	35			3479	4026	4560	5084	5600	6109	6613	7112
750	35			3725	4308	4877	5435	5984	6526	7062	7592
800	35			3970	4589	5193	5784	6367	6941	7508	8070

Volume flow rate q_v in [m³/h] for differential pressure Δp_st 35 Pa
700 – 1500 mm

H	L_WA [dB(A)]	B
H	L_WA [dB(A)]	700	750	800	900	1000	1100	1200	1300	1400	1500
100	35	1293	1380	1468
125	35	1660	1772	1883
150	35	2008	2142	2276
160	35	2341	2497	2653
200	35	2664	2841	3017	2633	2915	3196	3476	3754	4031	4308
250	35	3270	3486	3701	3422	3785	4147	4506	4864	5221	5576
300	35	3869	4122	4374	4172	4611	5048	5482	5915	6345	6774
350	35	4451	4739	5027	4895	5406	5914	6419	6922	7423	7922
400	35	5020	5343	5664	5597	6177	6753	7327	7897	8465	9031
450	35	4972	5302	5630	6282	6929	7572	8211	8847	9480	10110
500	35	5512	5875	6237	6955	7667	8374	9077	9776	10471	11164
550	35	6044	6440	6834	7616	8392	9162	9926	10687	11444	12198
600	35	6570	6998	7424	8269	9107	9938	10763	11584	12401	13214
650	35	7091	7551	8008	8914	9813	10704	11589	12469	13344	14216
700	35	7606	8098	8585	9553	10511	11461	12405	13343	14276	15204
750	35	8118	8640	9158	10186	11203	12211	13213	14208	15197	16181
800	35	8626	9178	9727	10813	11889	12955	14013	15064	16109	17149

Volume flow rate q_v in [m³/h] for differential pressure Δp_st 35 Pa
200 – 650 mm

H	L_WA [dB(A)]	B
H	L_WA [dB(A)]	200	250	300	350	400	450	500	550	600	650
100	45	525	690	841	975	1107	1239	1369	1499	1629	1758
125	45	710	870	1088	1258	1427	1595	1762	1928	2094	2258
150	45	880	1115	1323	1529	1733	1935	2136	2336	2534	2732
160	45	1063	1309	1552	1791	2028	2262	2496	2727	2958	3188
200	45	1219	1499	1775	2046	2314	2580	2845	3107	3368	3628
250	45	1498	1844	2183	2517	2846	3173	3496	3818	4137	4455
300	45	1797	2207	2607	2999	3387	3770	4150	4527	4902	5274
350	45	2092	2563	3022	3472	3915	4354	4788	5218	5646	6071
400	45	2384	2915	3431	3937	4435	4927	5413	5896	6375	6851
450	45	2151	2709	3247	3772	4287	4794	5295	5790	6282	6769
500	45	2404	3022	3619	4200	4769	5329	5882	6429	6971	7508
550	45			3987	4623	5246	5858	6462	7059	7650	8237
600	45			4353	5043	5718	6382	7036	7683	8322	8957
650	45			4715	5460	6187	6902	7605	8300	8988	9669
700	45			5076	5874	6653	7418	8170	8913	9648	10376
750	45			5435	6286	7116	7930	8731	9522	10303	11077
800	45			5792	6695	7576	8440	9289	10127	10954	11774

Volume flow rate q_v in [m³/h] for differential pressure Δp_st 35 Pa
700 – 1500 mm

H	L_WA [dB(A)]	B
H	L_WA [dB(A)]	700	750	800	900	1000	1100	1200	1300	1400	1500
100	45	1886	2014	2142
125	45	2422	2585	2748
150	45	2929	3126	3322
160	45	3416	3644	3871
200	45	3887	4145	4402	3842	4254	4663	5071	5477	5882	6285
250	45	4771	5086	5400	4993	5523	6050	6575	7097	7617	8136
300	45	5645	6014	6382	6088	6728	7365	7999	8630	9258	9884
350	45	6494	6915	7334	7142	7888	8629	9366	10100	10830	11558
400	45	7324	7795	8264	8166	9012	9853	10690	11522	12351	13177
450	45	7254	7735	8214	9166	10110	11048	11980	12908	13831	14751
500	45	8042	8572	9100	10147	11186	12217	13243	14263	15278	16289
550	45	8818	9397	9971	11113	12244	13367	14483	15593	16697	17797
600	45	9586	10211	10832	12065	13287	14499	15704	16902	18093	19280
650	45	10345	11016	11683	13006	14317	15617	16908	18192	19470	20741
700	45	11098	11814	12526	13938	15336	16722	18099	19467	20828	22183
750	45	11844	12606	13362	14861	16345	17816	19277	20729	22172	23609
800	45	12586	13391	14191	15777	17346	18901	20444	21978	23503	25020

The Easy Product Finder allows you to size products using your project-specific data. You will find the Easy Product Finder on our website.

Sizing example

Given data Quick sizing
Volume flow rate: 3350 m³/h FK2-EU/400×300×500
Maximum width: 300 mm
Sound power level: 45 dB(A)

Specification text

Fire damper in line with the European product standard DIN EN 15650 in square or rectangle construction style with two large inspection accesses that can be operated without tools. Tested for fire resistance properties according to DIN EN 1366-2 (300 Pa and 500 Pa negative pressure), with CE label.

The fire damper manufacturer's declaration of performance (DoP) provides proof that a product is suitable for the respective installation conditions, e.g. in, on the face of and remote from walls or ceilings, with the stated essential characteristics such as size, supporting construction, construction and installation type, and that it has the corresponding class of performance to EN 13501-3.

The ready-for-operation unit includes a release mechanism and a replaceable, fire-resistant damper blade, which, depending on the application, can be either horizontal or vertical. Depending on application, classified from:

EI 30 (v_e, h_o i ↔ o) S to EI 240 (v_e, h_o i ↔ o) S

Suitable for:

Mortar-based installation

In solid walls, walls made from gypsum wall boards, lightweight partition walls, compartment walls, safety partition walls and walls to provide radiation protection

In solid walls with partial mortaring

With installation kit for flexible ceiling joints in solid walls

In shaft walls with metal support structures or steel support structures

In timber stud walls and timber frame walls, as well as solid wood and cross laminated timber walls

In and on solid walls and in combination with timber beam, solid wood and modular ceilings (System Cadolto)

In solid wood ceilings, wooden beam ceilings and historical wooden beam ceilings

Multiple occupancy up to 4.8 m² total fire damper surface area in solid walls and ceiling slabs, lightweight partition walls as well as timber stud walls and half-timbered constructions

Combined installation with FKRS-EU and FKR-EU in solid walls and ceiling slabs, lightweight partition walls, shaft walls as well as timber stud walls and half-timbered constructions up to 1.2 m² total fire damper surface area

In lightweight partition walls, compartment walls, safety partition walls and radiation protection walls with metal support structures or steel support structures

4-fold arrangement up to 4.8 m² total fire damper surface area with common duct in solid walls, lightweight partition walls as well as timber stud walls and half-timbered constructions

Mortar-based installation in concrete base on solid ceiling slabs, also combined with FKRS-EU and FKR-EU as well as multiple occupancy up to 4.8 m² total fire damper surface area

In hollow-stone, hollow-section, ribbed and composite ceiling slabs

Dry mortarless installation

In lightweight partition walls, compartment walls, safety partition walls and radiation protection walls with metal support structures or steel support structures

In lightweight partition walls with metal support structure and cladding on both sides, and with flexible ceiling joint

In timber stud walls and timber frame walls, as well as solid wood and cross laminated timber walls

In solid walls with installation kit E3 in an existing installation subframe E1/E2 of the FK-K90 or FK-EU

In solid walls with installation kit EW and installation subframe

With gypsum board/gypsum plaster fire protection panels in lightweight partition walls with metal support

With mineral wool in lightweight partition wall with metal support, timber stud walls and half-timbered constructions as well as solid wood walls

In shaft walls with metal support structure or steel support structure, and in shaft walls without metal support structure

In solid wood and wooden beam ceilings

With an installation kit on the face of and remote from solid walls and ceiling slabs

Remote from lightweight partition walls (wall penetration)

Fire batt installation

In solid walls and ceiling slabs

In lightweight partition walls, compartment walls, safety partition walls and walls to provide radiation protection, with metal support structure or steel support structure

In timber stud walls, half-timbered constructions, solid wood walls and CLT walls

Multiple occupancy up to 2.4 m² total fire damper surface area in solid walls and ceiling slabs, lightweight partition walls as well as timber stud walls and half-timbered constructions

Size dimensions from (B × H) 200 mm × 100 mm – 1500 mm × 800 mm, intermediate sizes can be ordered in 1 mm increments. Optimised low-leakage casing, up to leakage class C to EN 1751 with low differential pressure and low sound power level. Fire damper casing made of galvanised sheet steel, optionally galvanised sheet steel with powder coating RAL 7001 or stainless steel 1.4301. Damper blade made of special insulation material; coating as an option.

Corrosion protection according to EN 15650 in connection with EN 60068-2-52. Hygienic requirements are fulfilled in accordance with VDI 6022-1, VDI 3803-1, DIN 1946-4, DIN EN 13779 as well as the Önorm H 6020 and H 6021 and the SWKI. Casing length 305 mm or 500 mm with a 30 mm (L = 500 mm) flange for the connection to ducts made of non-combustible or combustible materials. Thermal release at 72 °C or 95 °C (warm air ventilation systems) with a fusible link or thermoelectrically with a spring return actuator, push button and indicator light (LED). Constructions with a brushless actuator for opening and closing the fire damper, also when the ventilation system is running and independent of the nominal size, are particularly suitable for functional checks and for shutting off sections of the duct system. Retrofit of spring return actuators without modification of the rod is possible from the outside. Explosion-proof constructions for zones 1, 2, 21 and 22 available with limit switch or spring return actuator.

In the version with thermal insulation made of 32 mm synthetic cellular rubber, fire rating class: B-s2-d0, spring return actuator and perimeter mortar infill, suitable for reducing condensation in the case of outdoor air intake (ODA Outdoor air)

Special features

Declaration of performance in accordance with European Construction Products Regulation

Classification to EN 13501-3, to EI 240 (ve, ho, i ↔ o) S

Complies with the requirements of EN 15650

Tested for fire resistance properties in accordance with EN 1366-2 (300 Pa and 500 Pa negative pressure)

Certified mortar-based installation with reduced distances of 40 mm to supporting components or 60 mm between two fire dampers (flange to flange)

Perimeter gap may be up to 225 mm for mortar-based installation

2 inspection accesses with bayonet fixing for single-handed operation

Meets the hygiene requirements of VDI 6022-1, VDI 3803-1, DIN 1946-4, EN 13779, of Ö-Norm H 6020 and H 6021, and of SWKI

Corrosion protection according to EN 15650 in connection with EN 60068-2-52

Closed blade air leakage to EN 1751, class 2

Casing air leakage to EN 1751, class C (B + H ≤700, class B)

Low differential pressure and sound power level

Any airflow direction

Integration into the central building management system with the international standard fire damper system in accordance with IEC 62026-2 with AS interface is possible

Technical data

Nominal sizes: 200 × 100 to 1500 × 800 mm

Casing lengths: 305 and 500 mm

Volume flow rate range: up to 14400 l/s / up to 51840 m³/h

Differential pressure: up to 2000 Pa

Temperature range: -20 – 50 °C

Upstream velocity*: Standard construction ≤ 8 m/s, construction with spring return actuator ≤ 12 m/s, construction with explosion-proof actuator ExMax/RedMax-15-BF TR ≤ 10 m/s

* Data applies to uniform upstream and downstream conditions for the fire damper

Materials and surfaces

TROX casing:

Galvanised sheet steel

Galvanised sheet steel, powder-coated RAL 7001

Stainless steel 1.4301

Damper blade:

Special insulation material

Special insulation material with impregnation

ODA construction:

Damper casing made of galvanised sheet steel with powder coating and thermal insulation, damper blade made of special insulating material with impregnation (only in conjunction with spring return actuator)

Other components:

Damper blade shafts and drive linkage made of galvanised steel, in constructions -1 and -2 made of stainless steel

Plastic bearings

EPDM and TPE seals

The construction variants with stainless steel or powder-coated casing meet even more critical requirements for corrosion protection. Detailed listing on request.

Equivalence criteria

The declaration of performance according to the Construction Products Regulation describes all CE-certified installation types including the performance class up to EI 240 S according to EN 13501-3 as well as the essential characteristics of at least the

Hygienic requirements are fulfilled in accordance with VDI 6022-1, VDI 3803-1, DIN 1946-4, DIN EN 13779 as well as the Önorm H 6020 and H 6021 and the SWKI.

CE-marked and thus tested for fire protection according to EU regulation 305/2011 and evaluated according to machinery directive 2006/42/EC

CE-certified mortar-based installation at a distance ≥ 60mm between 2 fire dampers (flange to flange)

Combined installation with FKRS-EU and FKR-EU in solid walls and ceiling slabs, lightweight partition walls, shaft walls as well as timber stud walls and half-timbered constructions up to 1.2 m² total fire damper surface area

2 inspection access panels Ø110 mm, with bayonet fixing (can be opened without tools)

Pressure loss < 15 Pa at reference size 400 × 200 mm and 6 m/s face velocity

Sound power < 38 dB (A) at reference size 400 × 200 mm and 6 m/s face velocity

Multiple occupancy up to 4.8 m² total fire damper surface area in solid walls and ceiling slabs, lightweight partition walls as well as timber stud walls and half-timbered constructions

4-fold arrangement up to 4.8 m² with common duct in solid walls, lightweight partition walls as well as timber stud walls and half-timbered constructions

Multiple occupancy up to 2.4 m² total fire damper surface area in solid walls and ceiling slabs, lightweight partition walls as well as timber stud walls and half-timbered constructions

Order code FK2-EU

FK2-EU

–

1 – 7

600 × 400 × 500

Z43

1 Type
FK2-EU Fire damper

2 Construction
No entry required: standard construction
1 powder-coated casing RAL 7001
2 stainless steel casing
7 impregnated damper blade
1 – 7 powder-coated casing RAL 7001 and impregnated damper blade
2 – 7 stainless steel casing and impregnated damper blade
W³with fusible link 95 °C
(only for use in warm air ventilation systems)
B⁴ with coated fusible link 72 °C
WB⁴ with coated fusible link 95 °C
(only for use in warm air ventilation systems)

3 Country of destination
DE Germany
CH Switzerland
AT Austria
NL Netherlands
GB Great Britain
ES Spain
Other countries of destination upon request

4 Nominal size [mm]
B × H × L

5 Accessories 1
No entry required: none
ES²
E3¹
EW²
GM^{2, 3}
WA²
WE²
GL100^{2, 3}
GL125^{2, 3}
GL150^{2, 3}
GL175^{2, 3}

6 Accessories 2
No entry required: none
0A – FR

7 Attachments
Z00 – ZA14

¹ Only for FK2-EU with L = 305 mm
² Only for FK2-EU with L = 500 mm
³ Not combinable with Z...RM and ZA12
⁴ Only for attachments Z00 – Z03 and Z00EX – Z03EX

Order example: FK2-EU-W/DE/600×200×500/ES/A0/Z43

Construction variant	Casing, galvanised
Release temperature	95 °C
Country of destination	Germany
Nominal size	600 × 200 × 500 mm
Accessories 1	Installation kit ES
Accessories 2	Cover grille on operating side
Attachment	Spring return actuator 230 V AC

Order code FK2-EU with thermal insulation as ODA construction to prevent condensation

FK2-EU

–

1-7-ODA

600 × 400 × 500

…

Z43

1 Type
FK2-EU Fire damper

2 Construction
1-7-ODA¹ powder-coated housing RAL 7001, impregnated damper blade and insulated damper housing (32 mm Armaflex Ultima)

3 Country of destination
DE Germany
CH Switzerland
AT Austria
NL Netherlands
GB Great Britain
ES Spain
Other countries of destination upon request

4 Nominal size [mm]
B × H × L

5 Accessories 1
No entry required: none²

6 Accessories 2
No entry required: none³

7 Attachments
Z43, Z45, Z60, Z61, ZA07, ZL09, ZL10, ZL11, ZB01, ZA14

¹ ODA only with 72 °C release temperature
² ODA cannot be combined with accessories 1
³ Accessories 2 cannot be factory mounted, when needed please order separately when needed

Order example: FK2-EU-1-7-ODA/600×200×500//ZA07

Construction variant	Casing, powder-coated, silver grey (RAL 7001), impregnated damper blade and insulated damper casing (32 mm Armaflex Ultima)
Release temperature	72 °C
Country of destination	Germany
Nominal size	600 × 200 × 500 mm
Accessories 1	None
Accessories 2	None
Attachment	Spring return actuator 24 V and AS-EM

Order code for FK2-EU as an upstream shutter of an air transfer unit

FK2-EU

–

1 – 7

600 × 400 × 500

Z01

1 Type
FK2-EU Fire damper

2 Construction
No entry required: standard construction
1 powder-coated casing RAL 7001
2 stainless steel casing
7 impregnated damper blade
1 – 7 powder-coated casing RAL 7001 and impregnated damper blade
2 – 7 stainless steel casing and impregnated damper blade

3 Country of destination
DE Germany
CH Switzerland
AT Austria
NL Netherlands
GB Great Britain
ES Spain
Other countries of destination upon request

4 Nominal size [mm]
B × H × L

5 Accessories 1
No entry required: none
ES²
E3¹
EW²
GM²
GL100²
GL125²
GL150²
GL175²

6 Accessories 2
AA Cover grilles on both ends

7 Attachments
Z00 - ZB01

¹ Only for FK2-EU with L = 305 mm
² Only for FK2-EU with L = 500 mm

For Germany, the following applies when used as an upstream shutter of an air transfer unit:
If fire dampers with a purely mechanical shut-off element are to be used as an air transfer unit, the local building regulations must be observed. This may require building authority approvals. This must be checked and applied for by others. Usually the use of such upstream shutters of air transfer units is restricted to pressure differential systems.

Order example: FK2-EU/DE/200×200×500/AA/Z03

Construction variant	Casing, galvanised
Country of destination	Germany
Nominal size	200 × 200 × 500 mm
Accessories 1	None
Accessories 2	Cover grilles on both ends
Attachment	Limit switches for damper blade positions OPEN and CLOSED

Order code FK2-EU as air transfer damper

FK2-EU

–

1 – 7

600 × 400 × 500

Z43RM

1 Type
FK2-EU Air transfer damper¹

2 Construction
No entry required: standard construction
1 powder-coated casing RAL 7001
2 stainless steel casing
7 impregnated damper blade
1 – 7 powder-coated casing RAL 7001 and impregnated damper blade
2 – 7 stainless steel casing and impregnated damper blade

3 Country of destination
DE Germany
CH Switzerland
AT Austria
NL Netherlands
GB Great Britain
ES Spain
Other countries of destination upon request

4 Nominal size [mm]
B × H × L

5 Accessories 1
No entry required: none
ES
E3
EW
GM²
GL100²
GL125²
GL150²
GL175²

6 Accessories 2
AA Cover grilles on both ends

7 Attachments
Z43RM, Z45RM, ZA12

¹ The following applies to Germany:
Use of the air transfer damper according to the specifications of the general type approval
² Mounting the RM-O-3-D via console in front of or behind the damper blade

Order example: FK2-EU-1/DE/200×200×500/AA/Z43RM

Construction variant	Casing powder-coated, RAL 7001, silver grey
Country of destination	Germany
Nominal size	200 × 200 × 500 mm
Accessories 1	Without
Accessories 2	Cover grilles on both ends
Attachment	Spring return actuator 230 V AC with factory mounted and wired duct smoke detector RM-O-3-D as air transfer damper

Dimensions, ODA construction

FK2-EU with fusible link Size 1

H	B
H	200	300	400	500	600	700	800	900	1000	1100	1200	1300	1400	1500
100	4/5	5/6	6/8	7/9	8/11	9/12	10/13	–	–	–	–	–	–	–
150	4/6	5/7	7/9	8/10	9/12	10/13	11/15	–	–	–	–	–	–	–
200	5/7	6/8	7/10	9/12	10/13	11/15	12/16	15/20	16/21	21/27	23/29	24/31	26/32	27/34
250	7/9	8/10	10/12	11/14	12/16	14/18	15/19	16/21	18/23	24/29	25/31	27/33	29/35	30/38
300	8/10	9/12	11/14	12/15	13/17	15/19	16/21	18/23	19/25	26/32	28/34	30/36	32/39	33/41
350	8/11	10/13	11/15	13/17	15/18	16/20	18/22	24/29	26/32	28/34	30/37	32/39	34/42	36/44
400	9/11	11/13	12/16	14/18	16/20	17/22	19/24	26/31	28/34	31/37	33/39	35/42	37/45	39/47
450	10/12	11/14	13/17	15/19	17/21	23/28	26/31	28/34	30/36	33/39	35/42	38/45	40/48	43/50
500	10/13	12/15	14/18	16/20	18/22	25/30	27/33	30/36	33/39	35/42	36/45	40/48	43/51	46/54
550	–	15/19	18/22	21/26	24/28	26/32	29/35	32/38	35/41	37/44	40/47	43/51	46/54	49/57
600	–	16/20	19/23	22/27	25/30	28/33	31/37	34/40	37/43	40/47	43/50	46/53	49/57	52/60
650	–	17/21	20/25	23/28	27/32	30/35	33/39	36/42	39/46	42/49	45/53	48/56	51/60	55/63
700	–	18/22	21/26	25/30	28/33	31/37	35/41	38/44	41/48	44/52	48/55	51/59	54/63	58/67
750	–	19/23	22/27	26/31	29/35	33/39	36/43	40/47	43/50	47/54	50/58	54/62	57/66	61/70
800	–	20/24	24/28	27/33	31/36	34/40	38/44	42/49	45/53	49/57	53/61	56/65	60/69	64/73

FK2-EU with thermal insulation

Supply package: FK2-EU with thermal insulation
① FK2-EU with thermal insulation on the operating side
② Insulating strips, Armaflex Ultima, around the perimeter

Application

Suitable for reducing condensation with outdoor air intake (ODA Outdoor air)
Only suitable for mortar-based installation with perimeter mortar infill

Materials and surfaces

Damper blade casing made of galvanised sheet steel, powder-coated (1)
Impregnated damper blade
Thermal insulation on the operating side made of 32 mm synthetic cellular rubber, fire rating class: B-s2-d0

Only in combination with spring return actuator (possible attachments Z43, Z45, Z60, Z61, ZA07, ZL09, ZL10, ZL11, ZB01, ZA14)

Note:

For further information relevant to design, in particular information on installation situations, please refer to the fire damper installation and operating manual and the additional installation manual for the ODA construction.

Accessories and Attachments

Installation kit ES

Installation kit supply package ES
1 Installation kit ES, consisting of:
a Installation kit B part with intumescent seal and mineral
wool (2 ×)
b Installation kit H part with intumescent seal and mineral
wool (2 ×)

c Connecting clip (8 pieces)
d Chipboard screw 5 × 50
(4 – 8 pieces, dependent on the damper size)
e Bracket (4 – 8 pieces, dependent on the damper size)
f Intumescent seal (4 pieces)
g Kerafix 2000 sealing tape

Accessories 1 - Installation kits

Installation kit ES

Application

Universally applicable installation kit for dry mortarless installation
In lightweight partition walls, compartment walls, safety partition walls and radiation protection walls with metal support structures or steel support structures
In timber stud walls and timber frame walls, as well as solid wood and cross laminated timber walls
In shaft walls with metal support structure or steel support structure, and in shaft walls without metal support structure
In solid wood and wooden beam ceilings

Notes:

Fire dampers with installation kit only with casing length L = 500 mm
The installation kit must be mounted on the fire damper by others
The installation kit can also be ordered and supplied separately
Enough clear space is required for installation of the installation kit
For further information relevant to design, in particular information on installation situations, please refer to the operating and installation manual.

L	Order code
500	ES

Installation kit E3

Application

FK2-EU with installation kit E3 for exchanging an existing FKK90 or FK-EU with installation subframe E1 or E2 embedded in mortar

Requirement

The installation subframe E1/E2 has been installed in the solid wall according to general building inspectorate licence (FK-K90) or the installation and operating manual (FK-EU)

Note

Fire damper FK2-EU and installation kit E3 are ordered together. The FK2-EU (structural length 305 mm) is supplied with 2 extension pieces (70 and 125 mm), meaning that an FK-K90 / FK-EU can be exchanged without changes to the connected ducts
The installation kit must be mounted on the fire damper by others
The installation kit E3 can also be ordered and supplied separately if required, in which case the extension pieces on the fire damper (70 and 125 mm) must be ordered by others
Enough clear space is required for installation of the installation kit
For further information relevant to design, in particular information on installation situations, please refer to the operating and installation manual.

L	Order code
305 mm with V parts over 500 mm	E3

Installation kit EW

Application

Installation kit EW for dry mortarless installation in an installation subframe embedded in mortar

Requirement

The installation subframe has been installed in the solid wall with perimeter mortar infill

Note

Fire dampers with installation kit only with casing length L = 500 mm
The installation kit must be mounted on the fire damper by others
The installation kit and installation subframe can also be ordered and supplied separately
Enough clear space is required for installation of the installation kit
For further information relevant to design, in particular information on installation situations, please refer to the operating and installation manual.

L	Order code
500	EW

Installation kit GM

Application

Installation kit for installation into solid non-load-bearing internal walls with flexible ceiling joint. With the installation kit the fire damper may be installed just below the movement joint; the joint is not interrupted by the installation kit

Note

Fire dampers with installation kit only with casing length L = 500 mm
Installation only with horizontal damper blade
The installation kit can also be ordered and supplied separately
Enough clear space is required for installation of the installation kit
For further information relevant to design, in particular information on installation situations, please refer to the operating and installation manual

L	Order code
500	GM

Installation kit WA

Application

Installation kit for Installation on the face of solid walls and ceiling slabs

Note

Fire dampers with installation kit only with casing length L = 500 mm
The installation kit must be mounted on the fire damper by others
The installation kit can also be ordered and supplied separately
Enough clear space is required for installation of the installation kit
The supplied anchor bolts are suitable for mounting on solid concrete walls and ceilings. Alternatively, equivalent anchor bolts must be provided, with suitability certificate for fire resistance provided by others, matched to the wall / ceiling slab or push through installation
For further information relevant to design, in particular information on installation situations, please refer to the operating and installation manual.

L	Order code
500	WA

Installation kit WE

Application

Installation kit for installation remote from solid walls and ceiling slabs, and remote from lightweight partition walls with cladding on both sides

Note

Fire dampers with installation kit only with casing length L = 500 mm
The installation kit must be mounted on the fire damper by others
The installation kit can also be ordered and supplied separately
Connection of the fire damper to ducts made of galvanised or stainless steel (to be provided by others)
Fire-resistant cladding made of panel material (provided by others)
Enough clear space is required for installation of the installation kit
For further information relevant to design, in particular information on installation situations, please refer to the operating and installation manual.

L	Order code
500	WE

Installation kit GL

Application

Installation kit for installation in lightweight partition walls with metal support and cladding on both sides with flexible ceiling joint (dry mortarless installation) directly underneath solid ceiling slabs

Note

Fire dampers with installation kit only with casing length L = 500 mm
The installation kits are adapted to the wall thickness or the width of the metal stud system
GL100 for wall thickness 100 mm when using 50 mm profile width
GL125 for wall thickness 125 mm when using 75 mm profile width
GL150 for wall thickness 150 mm when using 100 mm profile width
GL175 for wall thickness 175 mm when using 125 mm profile width
Drive side on the right (details for a different installation orientation are available upon request)
The installation kit must be mounted on the fire damper by others The installation kit can also be ordered and supplied separately
Enough clear space is required for installation of the installation kit
For further information relevant to design, in particular information on installation situations, please refer to the operating and installation manual.

L	Order code
500	GL100 GL125 GL150 GL175

Cover grilles

① Cover grille, mesh aperture 10 × 10 mm,
Wire width 2 mm

Accessories 2 – Cover grille

Application

If only one end is to be ducted on site, the other end must have a cover grille. If no duct is connected (upstream shutter of an air transfer unit or air transfer damper), cover grilles must be provided at both ends

Note

Extension pieces are required for heights > 400 mm due to construction
Fire damper, cover grille and, if applicable, extension piece are factory assembled to form a unit
The free area of the cover grille is approx. 70 %
The fixing holes in the cover grille and extension piece match those in the fire damper flanges
Cover grilles are also available separately
When using the FK2-EU as an air transfer damper in accordance with general building inspectorate licence Z-6.50-2540, cover grilles must be provided at both ends
When using the FK2-EU as upstream shutter of an air transfer unit, cover grilles must be provided at both ends
For further information relevant to design, in particular information on installation situations, please refer to the operating and installation manual.

Materials and surfaces

Cover grilles and extension pieces (height-dependent) made of galvanised sheet steel (and powder-coated silver grey, RAL 7001, when used with powder-coated (1) and stainless steel (2) dampers)
Mesh aperture 10 mm × 10 mm, wire width 2 mm

The following applies to Germany:

Use as air transfer damper with cover grilles at both ends, spring return actuator and duct smoke detector according to general building inspectorate licence: Z-6.50-2540
If fire dampers are used as upstream shutters of air transfer units, the national building regulations must be observed. Usually the use of such upstream shutters of air transfer units is restricted to pressure differential systems

Operating side	Installation side	Order code	Casing length
Cover grille	–	A0	305/500
–	Cover grille	0A	500
Cover grille	Cover grille	AA *	500
Cover grille	Flexible connector	AS	500
Flexible connector	Cover grille	SA	500
Cover grille	Circular spigot	AR	500
Circular spigot	Cover grille	RA	500
Cover grille	Profile connecting frame	AF	305/500
Profile connecting frame	Cover grille	FA	500

* AA for FK2-EU as upstream shutter of an air transfer unit and air transfer damper according to general building inspectorate licence Z-6.50-2540.

Accessories 2 – Flexible connector

Application

To limit forces due to ducts expansions and wall deformations in the event of a fire, we recommend using flexible connectors for installation in lightweight partition walls, shaft walls and lightweight compartment walls, as well as fire batt installation

Note

Be sure to comply with the relevant national guidelines on limiting forces
Flexible connectors should be installed in such a way that both ends can absorb both tension and compression
For heights > 400 mm, extension pieces are required due to construction
The fixing holes in the flexible connectors and extension pieces match those in the fire damper flanges
Flexible connectors are also available separately
For further information relevant to design, in particular information on installation situations, please refer to the operating and installation manual.

Materials and surfaces

Flexible connectors made of fibre-reinforced plastic (fire behaviour according to DIN 4102; B2) and galvanised steel
Extension pieces (height-dependent) made of galvanised sheet steel (and powder-coated silver grey, RAL 7001, when used with powder-coated (1) and stainless steel (2) dampers)

Operating side	Installation side	Order code	Casing length
Flexible connector	–	S0	305/500
–	Flexible connector	0S	500
Flexible connector	Flexible connector	SS	500
Flexible connector	Cover grille	SA	500
Cover grille	Flexible connector	AS	500
Flexible connector	Circular spigot	SR	500
Circular spigot	Flexible connector	RS	500
Flexible connector	Profile connecting frame	SF	305/500
Profile connecting frame	Flexible connector	FS	500

Accessories 2 – Profile connecting frame

Application

Profile connecting frames are required for the connection of ducts using a sluice gate valve
In addition to the 4-screw corner joints, the duct and profile connecting frame are connected by means of a sluice gate valve.

Note

Lower leakage rates can be achieved when profile connecting frames are installed than when using a flange screw connection
Profile connecting frames have a sliding rebate
The fixing holes in the profile connecting frame match those in the fire damper flanges
Profile connecting frames are also available separately
For further information relevant to design, in particular information on installation situations, please refer to the operating and installation manual

Materials and surfaces

Profile connecting frame made of galvanised steel

Operating side	Installation side	Order code	Casing length
Profile connecting frame	–	F0	305/500
–	Profile connecting frame	0F	305/500
Profile connecting frame	Profile connecting frame	FF	305/500
Profile connecting frame	Flexible connector	FS	500
Flexible connector	Profile connecting frame	SF	305/500
Profile connecting frame	Cover grille	FA	500
Cover grille	Profile connecting frame	AF	305/500
Profile connecting frame	Circular spigot	FR	500
Circular spigot	Profile connecting frame	RF	305/500

Accessories 2 – Circular spigot

Application

Circular spigots for rectangular FK2-EU fire dampers facilitate the direct connection of circular ducts.

Note

Extension pieces are required for heights > 400 mm due to construction
Circular spigots and, if applicable, extension pieces are factory assembled to form a unit
The fixing holes in the round spigots match those in the fire damper flanges
Round spigots are also available separately
For further information relevant to design, in particular information on installation situations, please refer to the operating and installation manual.

Materials and surfaces

Circular spigots made of galvanised sheet steel (and powdercoated silver grey, RAL 7001, when used with powder-coated (1) and stainless steel (2) dampers)

Operating side	Installation side	Order code	Casing length
Circular spigot	–	R0	305/500
–	Circular spigot	0R	500
Circular spigot	Circular spigot	RR	500
Circular spigot	Flexible connector	RS	500
Flexible connector	Circular spigot	SR	500
Circular spigot	Cover grille	RA	500
Cover grille	Circular spigot	AR	500
Circular spigot	Profile connecting frame	RF	305/500
Profile connecting frame	Circular spigot	FR	500

Dimensions [mm]

Nominal size	B×H	øD
200	200 × 200	198
250	250 × 250	248
300	300 × 300	248
350	350 × 350	313
400	400 × 400	398
450	450 × 450	448
500	500 × 500	498
550	550 × 550	498
600	600 × 600	558
650	650 × 650	628
700	700 × 700	628
750	750 × 750	708
800	800 × 800	798

Accessories 2 – Extension pieces

Application

When there are cover grilles, circular spigots, flexible connectors, moulds, etc., you may have to use an extension piece for certain heights

Note

The movement of the damper blade must not be obstructed.
The distance between the tip of the open damper blade and attachments (moulded parts, etc.) or any accessory should be at least 50 mm
Fire dampers with flexible connectors, cover grilles and round spigots, including extension parts, are supplied (depending on height)
The fixing holes in the extension pieces match those in the fire damper flanges
Extension pieces are also available separately
For further information relevant to design, in particular information on installation situations, please refer to the operating and installation manual.

Materials and surfaces

Extension pieces made of galvanised sheet steel, length 195 mm (and powder-coated silver grey (RAL 7001), when used with powder-coated (1) and stainless steel (2) dampers)

Open blade protrusion [mm]

H	100	150	200	250	300	350	400	450	500	550	600	650	700	750	800
x	-204	-179	-154	-129	-104	-79	-54	-29 *	-4 *	21 *	46 *	71 *	96 *	121 *	146 *
y (1)	-8 *	17 *	42 *	67 *	92 *	117 *	142 *	167 **	192 **	217 **	242 **	267 **	292 **	317 **	342 **
y (2)	-204	-179	-154	-129	-104	-79	-54	-29 *	-4 *	21 *	46 *	71 *	96 *	121 *	146 *

* 1 Extension piece required
** 2 Extension pieces required
(1) L = 305 mm
(2) L = 500 mm

Arrangement of extension pieces

L	H	Operating side	Installation side
305	100 – 400	–	195
305	405 – 800	195	2 × 195
500	100 – 400	–	–
500	405 – 800	195	195

FK2-EU with limit switch (fig. size 2)

Attachment – Limit switch

FK2-EU (fusible link construction) with limit switch
Application

Limit switches with volt-free contacts can indicate the damper blade position
Up to the maximum switch rating, relays or indicator lights for fire alarm systems can be used
One limit switch each is required for damper blade positions OPEN and CLOSED
Fire dampers with a fusible link can be supplied or retrofitted with one or two limit switches (a conversion kit is required for a retrofit).
For the technical data and wiring examples, see the installation and operating manual for FK2-EU.

Attachment	Order code
Limit switch for damper blade position CLOSED	Z01
Limit switch for damper blade position OPEN	Z02
Limit switches for damper blade positions CLOSED and OPEN	Z03

Attachment – Limit switch in explosion-proof construction

FK2-EU (fusible link construction) with limit switch in explosion-proof construction
Application

Explosion-proof limit switches with volt-free contacts can indicate the damper blade position
Declaration of conformity: EPS 20 ATEX 2 058 X
Up to the maximum switch rating, relays or indicator lights for fire alarm systems can be used
The limit switches must be connected in a separately approved casing with a type of protection according to EN 60079-0
One limit switch each is required for damper blade positions OPEN and CLOSED
Fire dampers with a fusible link can be supplied or retrofitted with one or two limit switches (a conversion kit is required for a retrofit)
Technical data and wiring examples, see additional operating manual "Explosion-protected fire dampers, type FK2-EU"

Attachment	Order code
Limit switch for damper blade position CLOSED	Z01EX
Limit switch for damper blade position OPEN	Z02EX
Limit switches for damper blade positions CLOSED and OPEN	Z03EX

Type of actuation	Release mechanism	Labelling	Ambient temperature	Maximum airflow velocity
Spring mechanism	Fusible link	II 2G Ex h IIC T6 Gb II 2D Ex h IIIC T80°C Db	-40 – 40 °C	8 m/s
Spring mechanism	Fusible link and limit switch	II 2G Ex h IIC T6 Gb II 2D Ex h IIIC T80°C Db	-20 – 40 °C	8 m/s

Attachment – Spring return actuator

FK2-EU with spring return actuator
Application

A spring return actuator allows for the remote control of the fire damper and/or release by a suitable duct smoke detector
If the supply voltage fails, or with thermoelectric release, the damper closes (power off to close)
Motorised fire dampers can be used to shut off ducts
Two integral limit switches with volt-free contacts can indicate the damper blade position (OPEN and CLOSED)
The connecting cables of the 24 V Belimo spring return actuator are fitted with plugs. This ensures quick and easy connection to the TROX AS-i bus system. Without automation components, the 24 V connection is made via a safety transformer provided by others
A conversion kit is available for retrofitting an actuator to a fire damper with fusible link
For the technical data and wiring examples, see the installation and operating manual for FK2-EU

Attachment	Order code
Spring return actuator 230 V (Belimo)	Z43
Spring return actuator 24 V (Belimo)	Z45
Spring return actuator 24 V (Belimo) including power supply unit BKN230-24-C-MP TR	Z60
Spring return actuator 24 V (Belimo) including power supply unit BKN230-24-C-MP TR and control module BKS24-1 TR	Z61
Spring return actuator 230 V (Siemens)	Z43S
Spring return actuator 24 V (Siemens)	Z45S

Attachment – Explosion-proof spring return actuator

FK2-EU with explosion-proof spring return actuator
Application

A spring return actuator allows for the remote control of the fire damper and/or release by a suitable duct smoke detector
The fire damper can be used in supply and extract air systems in areas with potentially explosive atmospheres
If the supply voltage fails, or with thermoelectric release, the damper closes (power off to close)
Fire dampers with spring return actuators can be functionally checked OPEN/CLOSED/OPEN
Two integral limit switches with volt-free contacts can indicate the damper blade position (OPEN and CLOSED)
The electrical connection is made in the explosion-proof terminal box
Release temperature of the spring return actuator 72°C
Declaration of conformity: EPS 20 ATEX 2 058 X
Technical data and wiring examples, see additional operating manual "Explosion-protected fire dampers, type FK2-EU"

Use in areas with potentially explosive atmospheres (ATEX)

According to declaration of conformity EPS 20 ATEX 2 058 X, the fire damper may be used in the following areas with potentially explosive atmospheres. The ambient temperatures and types of release and actuation specified in the technical data are binding.

ExMax:

Zones 1, 2: Gases, mists and vapours Zones 21, 22: Dusts

RedMax:

Zone 2: Gases, mists and vapours Zone 22: Dusts

Attachment	Order code
ExMax-15-BF TR	ZEX1
RedMax-15-BF TR	ZEX3

Type of actuation	Release mechanism	Labelling	Ambient temperature	Maximum airflow velocity
ExMax-15-BF TR	ExPro-TT *	II 2G Ex h IIC T6 Gb II 2D Ex h IIIC T80°C Db	-40 – 40 °C	10 m/s
RedMax-15-BF TR	ExPro-TT *	II 3G Ex h IIC T6 Gc II 3D Ex h IIIC T80°C Dc	-40 – 40 °C	10 m/s

* Release temperature: 72 °C

Attachment – Spring return actuator and RM-O-3-D

FK2-EU with spring return actuator and duct smoke detector RM-O-3-D
Application

An open/close actuator allows for remote control of the fire damper and/or release by a suitable duct smoke detector
If the supply voltage fails, or with thermoelectric release or smoke detection the damper closes (power off to close)
Motorised fire dampers can be used to shut off ducts
Two integral limit switches with volt-free contacts can indicate the damper blade position (OPEN and CLOSED)
The type RM-O-3-D duct smoke detector must be installed in the lower inspection access and arranged at the top when assembling the fire damper
For the technical data and wiring examples, see the installation and operating manual for FK2-EU and/or the operating and installation manual for duct smoke detector type RM-O-3-D

Attachment	Order code
With spring return actuator 230 V (Belimo) and integrated duct smoke detector type RM-O-3-D	Z43RM¹
With spring return actuator 24 V (Belimo) and integrated duct smoke detector type RM-O-3-D	Z45RM¹
With spring return actuator 230 V (Siemens) and integrated duct smoke detector type RM-O-3-D	Z43RMS¹
With spring return actuator 24 V (Siemens) and integrated duct smoke detector type RM-O-3-D	Z45RMS¹

1: If the unit is not connected to ducting, cover grilles are required on both ends. When combined with a spring return actuator, a duct smoke detector RM-O-3-D and cover grilles on both ends, this is an air transfer damper with general building inspectorate licence: Z-6.50-2540.

The duct smoke detector can be installed on the operation and installation side.

Attachment – Spring return actuator and TROXNETCOM

FK2-EU with spring return actuator and TROXNETCOM
Application

Fire dampers with a 24 V spring return actuator (Belimo) and the modules described here as attachments form a functional unit ready for automatic operation
The components are factory mounted and wired
The combination spring return actuator with TROXNETCOM enables brand-neutral and cross-sector integration of various components (modules) in one network
The modules control actuators and/or receive signals from sensors

AS-i

AS interface is a global standard bus system according to EN 50295 and IEC 62026-2
The module transmits the control signals between the spring return actuator and the controller and power unit
The control of the actuator and monitoring of run time for functional tests is thus possible
The voltage (24 V DC) for the module and the actuator is supplied via the two-wire AS-i flat cable
Function display: operation, 4 inputs, 2 outputs

MODBUS RTU/BACnet MS/TP (RS485)

MODBUS RTU and BACnet MS/TP are protocols for RS485 communication systems
Data transmission is based on uniform protocols
Only the bus line and the supply voltage remain to be connected by others
MB-BAC-WA1/2: for the control of 1 – 2 fire dampers
WA1/B3-AD: junction box for the 2nd fire damper with 24 V DC supply voltage to the MB-BAC-WA1/2
WA1/B3-AD230: junction box with integrated power supply unit 230/24 V for connection of a 2nd motor-driven 24 V fire damper to the MB-BAC-WA1/2 LON

LON

LON indicates a standard local operating network system with manufacturer-independent communications
Data transmission is based on a uniform protocol
LonMark defines standards to ensure product compatibility
Only the bus line and the supply voltage remain to be connected by others
LON-WA1/B3: for the control of 1 – 2 fire dampers
WA1/B3-AD: junction box for the 2nd fire damper with 24 V DC supply voltage to the LON-WA1/B3
WA1/B3-AD230: Connection box with integral 230/24 V power supply unit for the connection of a second actuator-driven 24 V fire damper to LON‑A1/B3

TNC‑EASYCONTROL

TNC-EASYCONTROL TNC-LINKBOX is a wiring aid for connecting a fire damper and the configurable parallel circuit for the TNCEASYCONTROL decentralised operating and monitoring system.

Attachment	Order code
Spring return actuator 24 V and AS-EM	ZA07
Spring return actuator 24 V, RM-O-3-D and AS-EM	ZA12
Spring return actuator 24 V and MB-BAC-WA1/2	ZB01
Spring return actuator 24 V and LON-WA1/B3	ZL09
Spring return actuator 24 V and WA1/B3-AD	ZL10
Spring return actuator 24 V and WA1/B3-AD230	ZL11
Spring return actuator 24 V and TNC-Linkbox	ZA14
Spring return actuator 24 V and MB-BAC-WA1/2	ZB01

Attachment – Explosion-proof spring return actuator and TROXNETCOM

FK2-EU with explosion-proof spring return actuator and TROXNETCOM
Application

The fire dampers with spring return actuator ExMax/ RedMax-15-BF-TR and module AS-EM/C form a functional unit ready for automatic operation
The combination explosion-protected spring return actuator with TROXNETCOM enables brand-neutral and cross-sector integration of various components (modules) in one network
The modules control actuators and/or receive signals from sensors The module is to be installed and wired outside the potentially explosive atmosphere by others

AS-i

AS interface is a global standard bus system according to EN 50295 and IEC 62026-2
The module transmits the control signals between the spring return actuator and the controller and power unit
The control of the actuator and monitoring of run time for functional tests is thus possible
Function display: operation, 4 inputs, 2 outputs

Attachment	Order code
ExMax-15-BF TR and AS-EM/C	ZEX2
RedMax-15-BF TR and AS-EM/C	ZEX4

Attachment – Duct smoke detectors

Application

To prevent smoke from spreading in buildings, it is extremely important that the smoke is detected at an early stage
Duct smoke detectors that operate on the principle of light scattering detect the smoke regardless of its temperature so that the fire dampers can be closed before the release temperature of 72°C is reached
If the air contains suspended particles, as is the case with smoke, beams of light are deflected off these. A sensor (photodiode), which does not receive light in clear air, is illuminated by the scattered light
The fire damper or smoke protection damper blade is released when the brightness of the scattered light exceeds a certain threshold

Attachment	Order code
Duct smoke detector	RM-O-3-D
Duct smoke detector	RM-O-VS-D

Duct smoke detectors are attachments and to be ordered separately.
RM-O-3-D can also be supplied assembled and wired for FK2-EU with standard application.

Downloads

product information

Product data sheet Fire dampers FK2-EU

FK2-EU_PD_2022_02_16_DE_en Product data sheet 62 MB pdf

brochures

One damper for everything. FK2-EU

SF_2020_09_Kurzinformation_FK2_EU_DE_en_web Brochure 420 KB pdf

certificates

Declaration of hygiene conformity

Declaration of hygiene conformity 130 KB pdf
Declaration of performance FK2-EU

FK2-EU_DoP_2021_07_DE_en Declaration of performance 400 KB pdf
Leakage classification of TROX ventilation components

Leckageklassifizierung-_v1_2022_07_07_DE_en Certificate 650 KB pdf

operation manuals

1. Installation and operating manual fire dampers FK2-EU

FK2-EU_IOM_A00000092715_V1_2022_06_GB_en Installation and operating manual 11 MB pdf
3. Short version - Installation and operating manual FK2-EU

FK2-EU_SV_IOM_A00000092717_V1_2022_03_GB_en Short version 2,6 MB pdf
Zusatz-Montageanleitung / Additional Manual FK2-EU | WA

FK2-EU_WA_IM_2021_09_DE_de_en Additional Manual 1,8 MB pdf
Zusatz-Montageanleitung Umrüstbaugruppen / Additional Manual FK·2-EU - Conversion kits

OM_2019_12_A00000075121_FK2-EU_V1_DE_de_en Zusatz-Betriebsanleitung 2,8 MB pdf
Zusatz-Montageanleitung / Additional Manual FK2-EU | E3

FK2-EU_E3_IM_2021_09_DE_de_en Additional Manual 1 MB pdf
Zusatz-Montageanleitung / Additional Manual FK2-EU | RM-O-3-D

FK2-EU_RM-O-3-D_IM_2021_07_02_DE_de_en Additional Manual 400 KB pdf
Zusatz-Montageanleitung / Additional Manual FK2-EU | EW

FK2-EU_EW_IM_2021_09_DE_de_en Additional Manual 1 MB pdf
Zusatz-Montageanleitung / Additional Manual FK2-EU | WE

FK2-EU_WE_IM_2021_09_DE_de_en Additional Manual 1,4 MB pdf
Zusatz-Montageanleitung / Additional Manual FK2-EU | ODA

FK2-EU_ODA_beigestellte-Daemmung-Gr1-Gr4_IM_2021_09_DE_de_en Additional Manual 690 KB pdf

By clicking the button, you allow us to provide you with an excellent website experience and easy shopping processes. These cookies include ones that are necessary for the operation of the site and for the control of our services and applications, as well as ones that are used solely for statistical purposes, for convenience settings or to display personalized content. You can decide which categories you want to allow and you can adjust the data utilisation settings based on your individual requirements. Please note that, depending on the settings that you have selected, all functionalities of the page might not be available. You can change your selection at any time.

TECHNICALLY NECESSARY

These cookies are necessary for the proper functioning of our website and cannot be disabled. As a rule, these cookies are set only in response to actions taken by you, such as setting your privacy preferences or filling the shopping cart. In addition, security-relevant functionalities or support via a dedicated webchat are integrated, including all session cookies from TROX set after you log in as a customer. You can set your browser to block these cookies or notify you about them. As a result, however, some areas of the website might not function as intended.

STATISTICS AND WEBSITE ANALYSIS

These cookies make it possible to collect data for statistics and analysis so that TROX can measure the performance of the websites visited, identify technical problems and find starting points for optimisation. They may be set by us or by third parties whose services we use on our sites. Users also help to identify, for example, which pages are used most frequently or only rarely or how people navigate between web pages. All information used by third parties is aggregated and anonymised.

FK2-EU

For diverse applications

General information

Technical information

Function, Technical Data, Quick sizing, Specification Text, Order Code

Order code FK2-EU

Order code FK2-EU with thermal insulation as ODA construction to prevent condensation

Order code for FK2-EU as an upstream shutter of an air transfer unit

Order code FK2-EU as air transfer damper

Dimensions, ODA construction

Accessories and Attachments

Accessories 1 - Installation kits

Accessories 2 – Cover grille

Accessories 2 – Flexible connector

Accessories 2 – Profile connecting frame

Accessories 2 – Circular spigot

Accessories 2 – Extension pieces

Attachment – Limit switch

Attachment – Limit switch in explosion-proof construction

Attachment – Spring return actuator

Attachment – Explosion-proof spring return actuator

Attachment – Spring return actuator and RM-O-3-D

Attachment – Spring return actuator and TROXNETCOM

Attachment – Explosion-proof spring return actuator and TROXNETCOM

Attachment – Duct smoke detectors

FIRE DAMPER INSTALLATION IN A LIGHTWEIGHT PARTITION WALL

FIRE DAMPER INSTALLATION REMOVED FROM A LIGHTWEIGHT PARTITION WALL

SUBSEQUENT FIR DAMPER INSTALLATION IN A LIGHTWEIGHT PARTITION WALL

MOUNTING LIMIT SWITCH

CONVERSION FROM SPRING RETURN ACTUATOR TO FUSIBLE LINK ACUTUATOR

CONVERSION FROM FUSIBLE LINK ACUTUATOR TO SPRING RETURN ACTUATOR

CONVERSION FROM FUSIBLE LINK TO SPRING RETURN ACTUATOR

CONVERSION FROM SPRING RETURN ACTUATOR TO FUSIBLE LINK

MOUNTING LIMIT SWITCH

Downloads

product information

Product data sheet Fire dampers FK2-EU

brochures

One damper for everything. FK2-EU

certificates

Declaration of hygiene conformity

Declaration of performance FK2-EU

Leakage classification of TROX ventilation components

operation manuals

1. Installation and operating manual fire dampers FK2-EU

3. Short version - Installation and operating manual FK2-EU

Zusatz-Montageanleitung / Additional Manual FK2-EU | WA

Zusatz-Montageanleitung Umrüstbaugruppen / Additional Manual FK·2-EU - Conversion kits

Zusatz-Montageanleitung / Additional Manual FK2-EU | E3

Zusatz-Montageanleitung / Additional Manual FK2-EU | RM-O-3-D

Zusatz-Montageanleitung / Additional Manual FK2-EU | EW

Zusatz-Montageanleitung / Additional Manual FK2-EU | WE

Zusatz-Montageanleitung / Additional Manual FK2-EU | ODA

TECHNICALLY NECESSARY

STATISTICS AND WEBSITE ANALYSIS

CONVENIENCE AND PERSONALISATION

FOR THE BEST TROX EXPERIENCE