FKR-EU

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

With TROXNETCOM as an option

CE compliant according to European regulations

ATEX certification

Tested to VDI 6022

FKR-EU

FOR LARGE DIAMETERS, WITH OR WITHOUT A FLANGE

Large circular fire damper for the isolation of duct penetrations between 2 fire compartments, available in 9 nominal sizes

Nominal sizes: 315 – 800 mm
Low differential pressure and sound power level
Flanges as an option
Explosion-proof construction (ATEX) as an option
Optionally available as an upstream shutter of an air transfer unit
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

Optional equipment and accessories

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

Useful additions

Duct smoke detectors

Initialize order code

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 characteristics

Declaration of performance in accordance with European Construction Products Regulation
Classification according to EN 13501-3 up to EI 120 (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 negative pressure)
Certified mortar-based installation with reduced distances of 40 mm to supporting components or 40 mm between two fire dampers (flange to flange)
Surrounding gap dimensions in the mortar-based installation with mortar up to 225 mm permitted
Hygienic requirements are fulfilled in accordance with VDI 6022-1, VDI 3803-1, DIN 1946-4 and EN 13779, as well as Önorm H 6020 and H 6021 and SWKI
Corrosion protection according to EN 15650 in connection with EN 60068-2-52
Closed blade air leakage to EN 1751, class 4
Casing air leakage to EN 1751, class C
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

Class of performance up to EI 120 (ve, ho, i ↔ o) S according to EN 13501-3

Nominal sizes

315, 355, 400, 450, 500, 560, 630, 710, 800 mm
L: 495 mm or 550 mm (depending on casing construction)

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 cover grille on both sides as an upstream shutter of an air transfer unit

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
Approved installation orientation from 0° to 360°
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
All attachments can be retrofitted

Accessories

Installation block TQ for dry mortarless installation into lightweight partition walls / fire walls with metal support structure and cladding on both sides, as well as timber stud walls, half-timbered and solid wood wall, as well as solid wood and wood beam ceilings
Cover grilles
Flexible connectors
Extension piece

Useful additions

Duct smoke detector RM-O-3-D
Duct smoke detector with airflow monitor RM-O-VS-D

Construction features

Rigid, circular casing with spigot connections suitable for circular ducts. Spigots with lip seal on both ends, suitable for commercially available circular ducts to EN 1506 or EN 13180; alternatively with flanges on both ends. Flanges, to EN 12220
Suitable for the connection of ducts, cover grilles or flexible connectors
The release mechanism is accessible and can be tested from the outside
Remote control with spring return actuator

Material and surfaces

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 shaft in stainless steel Plastic plain bearings Seals of elastomer The design variants with a stainless steel or powder-coated casing fulfil increased requirements in terms of 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
2014/34/EU – ATEX 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 situation, 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: 315 to 800 mm
Casing lengths: 495 and 550 mm
Volume flow rate range: up to 6000 l/s / up to 21600 m³/h
Differential pressure range: 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 Germany

Do not use it in extract air systems in commercial kitchens
Do not use it as an air transfer damper
Do not use in combined penetration seal
Do not use in fire protection block bulkhead.
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, non-dripping building materials (elastomeric foams) must at least correspond to fire rating class C - s2, d0 according to the specifications of MVV TB (since 2019/01). The applicable national building regulations must be adhered to

Technical information

Functional descriptionConstruction with fusible link

① Casing
② Damper blade with seal
③ Travel stop for CLOSED position
④ Handle
⑤ Release tab
⑥ Thermal release mechanism with fusible link
⑦ Lip seal

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	315 – 800 mm
Casing lengths	495 and 550 mm
Volume flow rate range	Up to 6000 l/s or 21600 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.

Free area and resistance coefficient

NG	(1)	(2)
315	0.069	0,44
355	0.089	0,34
400	0.114	0,26
450	0.140	0,21
500	0.175	0,17
560	0.222	0,13
630	0.285	0,10
710	0.365	0,08
800	0.468	0,06

A [m²]
ζ

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.

Volume flow rate qv for differential pressure Δpst < 35 Pa

NG	(1)	(2)	(3)	(4)
315	460	670	1660	2400
355	570	820	2040	2940
400	700	1000	2500	3610
450	820	1180	2940	4240
500	980	1410	3530	5080
560	1190	1710	4280	6160
630	1450	2090	5230	7520
710	1780	2560	6400	9210

NG	(1)	(2)	(3)	(4)
800	2170	3130	7810	11250

35 LWA [dB(A)] in l/s
45 LWA [dB(A)] in l/s
35 LWA [dB(A)] in m³/h
45 LWA [dB(A)] in m³/h

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:

Volume flow rate: 3600 m³/h

Sound power level: ≤ 45 dB(A)

Quick sizing

FKR-EU/400

Specification text

Fire damper according to the European product standard EN 15650 in circular construction style. Tested for fire resistance properties according to EN 1366-2, with CE label. The fire damper manufacturer's declaration of performance (DoP) provides proof of the respective installation conditions, e.g., in walls or ceilings, along with the basic characteristics such as size, support structure, design and installation type and the respective classes of performance in accordance with the classification standard EN 13501-3. Ready-to-use units contain a release mechanism and an interchangeable, fire-resistant damper blade that can be arranged horizontally or vertically and in all intermediate positions (0 - 360°) depending on the use. Depending on application, classified from: EI 30 (ve, ho i ↔ o) S to EI 120 (ve, ho 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 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, wooden beam and historical wooden beam ceilings
If several fire dampers are installed in a solid wall, ceiling slab, lightweight partition wall, timber stud wall and halftimbered wall, their combined area must not exceed 4.8 m²
Can be installed together with FK2-EU in solid walls and ceiling slabs, lightweight partition walls, timber stud walls, half-timbered walls and shaft walls

Dry mortarless installation

In lightweight partition walls and compartment walls with metal support structure and cladding on both sides: with installation kit TQ
In timber stud walls and timber frame walls, as well as solid wood and cross laminated timber walls with installation kit TQ
In solid wood and wooden beam ceilings with installation kit TQ

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

Sizes from nominal size 315 mm – 800 mm. 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, optionally with coating. 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 in spigot design (length 550 mm) or flange design (length 495 mm) for connection to ducts made of non-combustible or combustible building materials. Thermal release for 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 characteristics

Declaration of performance in accordance with European Construction Products Regulation
Classification according to EN 13501-3 up to EI 120 (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 negative pressure)
Certified mortar-based installation with reduced distances of 40 mm to supporting components or 40 mm between two fire dampers (flange to flange)
Surrounding gap dimensions in the mortar-based installation with mortar up to 225 mm permitted
Hygienic requirements are fulfilled in accordance with VDI 6022-1, VDI 3803-1, DIN 1946-4 and EN 13779, as well as Önorm H 6020 and H 6021 and SWKI
Corrosion protection according to EN 15650 in connection with EN 60068-2-52
Closed blade air leakage to EN 1751, class 4
Casing air leakage to EN 1751, class C
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

Material and surfaces

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 shaft in stainless steel
Plastic plain bearings
Seals of elastomer

The design variants with a stainless steel or powder-coated casing fulfil increased requirements in terms of corrosion protection. Detailed listing on request.

Technical data

Nominal sizes: 315 to 800 mm
Casing lengths: 495 and 550 mm
Volume flow rate range: up to 6000 l/s / up to 21600 m³/h
Differential pressure range: 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

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 120 S according to EN 13501-3 as well as the essential characteristics of at least the permissible size and supporting structure
Hygienic requirements are fulfilled in accordance with VDI 6022-1, VDI 3803-1, DIN 1946-4 and EN 13779, as well as the Önorm H 6020 and H 6021 and the SWKI.
CE-marked and thus tested for fire resistance properties according to EU regulation 305/2011 and evaluated according to machinery directive 2006/42/EC and ATEX directive 2014/34/EU
CE-certified mortar-based installation at a distance ≥ 40mm between 2 fire dampers (flange to flange)
Combined mortar-based installation with fire dampers of the FK2-EU type in solid walls, lightweight partition walls with cladding on both sides, timber stud walls and half-timbered walls, shaft walls with metal studs with cladding on one side, and solid ceiling slabs
Pressure loss < 10 Pa at reference size 400 mm and 6 m/s upstream velocity
Sound power < 38 dB(A) at reference size 400 mm and 6 m/s upstream velocity

Life cycle assessment

A life cycle assessment is available for the product series in form of an Environmental Product Declaration (EPD) that has been checked and published by a programme holder.

Order code FKR-EU

FKR-EU

–

315

ZL09

1 Type
FKR-EU Fire damper

2 Casing construction
No entry: spigot design
FL with flanges on both sides

3 Casing variant
No entry: standard construction
1 powder-coated casing, RAL 7001 (silver grey)
2 Stainless steel casing

4 Damper blade variant
No entry: standard variant
7 impregnated damper blade

5 Fusible link/thermoelectric release device
No entry: 72 °C release temperature
W1 95 °C release temperature (only for warm air ventilation systems)
B2 with coated fusible link, 72 °C release temperature
WB2 with coated fusible link, 95 °C release temperature (only for use in warm air ventilation systems)

6 Country of destination
Specify country code

7 Nominal size [mm]

315, 355, 400, 450, 500, 560, 630, 710, 800

8 Accessories 1
No entry: without accessories
TQ square installation kit (not with FL casing version)

9 Accessories 2
No entry: without accessories

Two entries required: accessories for operating side and for installation side

0 Side without accessories
A Cover grille
S flexible spigot

10 Attachment

Z00 – ZEX4

1 not with attachment ZEX1 - ZEX4

2 only with attachment Z00 - Z03 or Z00EX - Z03EX

Order example: FKR-EU-1-7-W/DE/315/TQ/SA/ZL09

Type	FKR-EU - Fire damper
Casing construction	Spigot construction
Casing variant	powder-coated casing, RAL 7001 (silver grey)
Damper blade variant	impregnated damper blade
Fusible link/thermoelectric release device	95 °C release temperature
Country of destination	Germany
Nominal size [mm]	315
Accessories 1	square installation kit
Accessories 2	Operating side: flexible spigot, Installation side: cover grille
Attachment	Spring return actuator 24 V AC/DC and LON module LON-WA1/B3

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

FKR-EU

–

ODA

315

Z43

1 Type
FKR-EU Fire damper

2 Casing construction
No entry: spigot design
FL with flanges on both sides

3 Casing variant
1 powder-coated casing, RAL 7001 (silver grey)

4 Damper blade variant
7 impregnated damper blade

5 Insulation
ODA insulated damper casing (32 mm Armaflex Ultima)

6 Country of destination
Specify country code

7 Nominal size [mm]

315, 355, 400, 450, 500, 560, 630, 710, 800

8 Accessories 1
No entry: without accessories

9 Accessories 2
No entry: without accessories
Accessories 2 cannot be factory mounted, so please order separately

10 Attachment

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

Order example: FKR-EU-FL-1-7-ODA/DE/315/Z43

Type

	FKR-EU - Brandschutzklappe
Casing construction	with flanges on both sides
Casing variant	powder-coated casing, RAL 7001 (silver grey)
Damper blade variant	impregnated damper blade
Insulation	insulated damper casing (32 mm Armaflex Ultima)
Country of destination	Germany
Nominal size [mm]	315
Accessories 1	Without accessories
Accessories 2	Without accessories
Attachment	Spring return actuator 230 V AC

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

FKR-EU

–

315

Z03

1 Type
FKR-EU Fire damper as an air transfer damper with fusible link

2 Casing construction
No entry: spigot design
FL with flanges on both sides

3 Casing variant
No entry: standard construction
1 powder-coated casing, RAL 7001 (silver grey)
2 Stainless steel casing

4 Damper blade variant
No entry: standard variant
7 impregnated damper blade

5 Country of destination
Specify country code

6 Nominal size [mm]

315, 355, 400, 450, 500, 560, 630, 710, 800

7 Accessories 1
No entry: without accessories
TQ square installation kit (not with FL casing version)

8 Accessories 2
AA Cover grilles on operating and installation side

9 Attachment

Z00, Z01, Z02, Z03

If the damper is to be used as an air transfer unit in Germany please note: If a fire damper with only a mechanical shut-off element is to be used as an air transfer damper (FD), the local building regulations apply. Such applications may require a building inspectorate licence. This must be checked and applied for by the client. Such air transfer dampers (FD) are usually used in pressure differential systems only.

Order example: FKR-EU-1-7/DE/315/TQ/AA/Z03

Type	FKR-EU – Fire damper as an air transfer damper with fusible link
Casing construction	Spigot construction
Casing variant	powder-coated casing, RAL 7001 (silver grey)
Damper blade variant	impregnated damper blade
Country of destination	Germany
NNominal size [mm]	315
Accessories 1	square installation kit
Accessories 2	Cover grilles on operating and installation side
Attachment	Limit switches for damper blade positions OPEN and CLOSED

Downloads

product information

Product data sheet Type FKR-EU

FKR-EU_PD_2024_08_23_DE_en Product data sheet 1,4 MB pdf

certificates

Certificate concerning statistical leakage tests

LC_v1_2024_10_DE_en Certificate 660 KB pdf
Declaration of performance FKR-EU

FKR-EU_03_2022_DoP_2022_02_DE_en Certificate 360 KB pdf
ATEX Certificate FKR-EU

TROX_21TH0380_EPS-21-ATEX-2-141-X_en_0_signed 1,1 MB pdf
EU Declaration of conformity – ATEX – FKR-EU

FKR-EU_CE_ATEX_2022_01_25_DE_en Certificate 1,1 MB pdf
EC declaration of conformity FKR-EU

FKR-EU_CE_2020_03_GB_en. Certificate 310 KB pdf
Declaration of hygiene conformity FKR-EU

FKR-EU_HC_2024_05_DE_en Certificate 2 MB pdf
Environmental Product Declaration FKR

FKR_EPD_2024_03_DE_en Environmental Product Declarations 400 KB pdf

operation manuals

Installation and operating manual FKR-EU

FKR-EU_IOM_A00000092704_V1_2022_02_GB_en Installation and operating manual 7,9 MB pdf
Short version Installation and operating manual FKR-EU

FKR-EU_SV_IOM_A00000092707_V1_2022_02_GB_en Short version 2,9 MB pdf
Supplementary Operating Manual - Explosion-proof fire damper FKR-EU

FKR-EU-ATEX_A00000038482_V2_2023_05_GB_en Supplementary Operating Manual 2,1 MB pdf
Additional Manual Conversion kits FKR-EU

A00000057444/12/2016 Manual 870 KB pdf
Installation and operating manual Fire damper - Type FKR-EU

FKR-EU_SV_IOM_A00000092707_V1_2022_02_GB_en Installation and operating manual 2,9 MB pdf
Additional installation manual FKR-EU ODA

FKR-EU_ODA_IM_A00000071857_V1_2023_06_GB_en--2- 680 KB pdf

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FKR-EU

FKR-EU