FKRS-EU

Tested to VDI 6022

With TROXNETCOM as an option

CE compliant according to European regulations

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

FKRS-EU

Compact dimensions, ideal for restricted spaces

Small circular fire damper for the isolation of duct penetrations between fire compartments, available in ten nominal sizes

Nominal sizes: 100 – 315 mm
Low differential pressure and sound power level
Optional stainless steel casing or powder-coated casing for increased corrosion protection
Can also be used as an air transfer unit
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
Duct smoke detector RM-O-3-D

Updating products

Initialize order code

Application

Application

Fire dampers of Type FKRS-EU, with CE marking and declaration of performance, for the isolation of duct penetrations between 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 according to Construction Products Regulation
Classification to EN 13501-3, up to EI 120 (v_e, h_o, i ↔ o) S
Building inspectorate licence Z-56.4212-991 for fire resistance properties
Complies with the requirements of EN 15650
Tested to EN 1366-2 for fire resistance properties
Hygiene complies with VDI 6022 part 1 (07/2011), VDI 3803 (10/2002), DIN 1946 part 4 (12/2008), and EN 13779 (09/2007)
Corrosion protection according to EN 15650 in connection with EN 60068-2-52
Closed blade air leakage to EN 1751, class 3
Casing air leakage to EN 1751, class C
Low differential pressure and sound power level
Any airflow direction
Integration into the central BMS with TROXNETCOM

Classification

Class of performance to EN 13501-3, up to EI 120 (v_e, h_o, i ↔ o) S

Nominal sizes

100, 125, 150, 160, 180, 200, 224, 250, 280, 315
L: 400 mm

Description

Variants

With fusible link
With spring return actuator
With cover grilles both ends as air transfer unit with general building inspectorate licence: Z-19.18-2128

Parts and characteristics

Dry mortarless installation into solid walls and ceiling slabs, lightweight partition walls, fire walls, and shaft walls using an installation block
Installation with wall face frame on the face of solid walls
Release temperature 72 °C or 95 °C (for use in warm air ventilation systems)
Approved installation orientation from 0° to 360°

Attachments

Limit switch for damper blade position indication
Spring return actuator for 24 V AC/DC or 230 V AC supply voltage
Network module for the integration with AS-i or LON networks

Accessories

Circular installation block ER
Square installation kit TQ
Wall face frame WA
Installation kit GL
Cover grille
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 suitable for push fitting into cut circular holes without additional drilling and chiselling being required
Spigot connections with lip seal on both ends, suitable for ventilation ducts according to EN 1506 and EN 13180 plus non-standard but commercial nominal sizes 180, 224 and 280
Suitable for the connection of flexible connectors or cover grilles
The release mechanism is accessible and can be tested from the outside
One inspection access panel
Remote control with spring return actuator

Materials 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 coating

Other components:

Damper blade shaft made of galvanised steel or stainless steel
Plastic bearings
Seals of elastomer

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 15650:2010 Ventilation for buildings – Fire dampers
EN 1366-2:1999 Fire resistance tests for service installations – Fire dampers
EN 13501-3:2010 Fire classification of construction products and building elements
EN 1751:1999 Ventilation for buildings – Air terminal devices

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 two consecutive tests, one 6 months after the other, are successful, the next test 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 of the ventilation system.
For details on maintenance and inspection refer to the installation and operating manual

Technical information

Schematic illustration of FKRS-EU with fusible link

① Casing
② Fusible link
③ Damper blade with seal
④ Inspection access (12 mm)
⑤ Lip seal
⑥ Handle with interlock and damper blade position indicator
⑦ Release mechanism

Construction with fusible link

Functional description

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.

Construction with spring return actuator

Functional description

The spring return actuator enables the motorised opening and closing of the damper blade; it can be activated by the central BMS. In the event of a fire, the damper is triggered thermoelectrically at 72 °C or 95 °C (use in warm air ventilation systems). As long as power is supplied to the actuator, the damper blade remains open. If the supply voltage fails, the damper closes (power off to close). Motorised fire dampers can be used to shut off ducts. The torque of each actuator is sufficient to open and close the damper blade even while the fan is running. The spring return actuator is fitted with limit switches that can be used for capturing the damper blade position.

Nominal sizes	100 – 315 mm
Casing length	400 mm
Volume flow rate range	Up to 770 l/s or up to 2770 m³/h
Differential pressure range	Up to 1500 Pa
Operating temperature	At least 0 – 50 °C **
Release temperature	72 °C or 95 °C (for warm air ventilation systems)
Upstream velocity*	≤ 8 m/s with standard construction; ≤ 10 m/s with spring return actuator

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

** Temperatures may differ for units with attachments

Volume flow rate at differential pressure Δpst < 35 Pa

L_WA [dB(A)]	25	35	45	25	35	45
Nominal size	V
mm	l/s			m³/h
100	22	35	43	79	126	157
125	40	65	87	144	234	315
150	70	105	150	252	378	540
160	80	125	180	288	450	648
180	105	165	235	388	587	847
200	140	210	295	504	756	1062
224	170	245	345	612	882	1242
250	215	315	445	774	1134	1602
280	280	405	570	1008	1458	2052
315	360	525	735	1296	1890	2646

The Easy Product Finder allows you to size products using your project-specific data.

You will find the Easy Product Finder on our website.

Circular fire dampers for the isolation of duct penetrations between fire compartments.

Tested for fire resistance properties to EN 1366-2, with CE marking and declaration of performance according to the Construction Products Regulation.

Ready-for-operation unit, which includes a fire-resistant damper blade and a release mechanism. For mortar-based installation and dry mortarless installation into solid walls and ceiling slabs, mortar-based installation into non-load-bearing solid walls with flexible ceiling joint, mortar-based and dry mortarless installation into lightweight partition walls with cladding on both sides, lightweight fire walls and lightweight shaft walls, and dry mortarless installation on the face of solid walls. For dry mortarless installation in lightweight partition walls with metal support structure and flexible ceiling joint; for dry mortarless installation in solid walls and ceiling slabs when using a fire batt; in lightweight partition walls with metal support structure and cladding on both sides.

Casing length 400 mm, for the connection to ducts made of non-combustible or combustible materials. Thermal or thermoelectric release at 72 °C or 95 °C (warm air ventilation systems).

Constructions with spring return actuator for opening and closing the fire damper independent of the nominal size and even while the ventilation system is running, e.g. for a functional test.

Simple construction for dry mortarless installation with installation kit: ER, TQ, GL, WA

Special characteristics

Declaration of performance according to Construction Products Regulation
Classification to EN 13501-3, up to EI 120 (v_e, h_o, i ↔ o) S
Building inspectorate licence Z-56.4212-991 for fire resistance properties
Complies with the requirements of EN 15650
Tested to EN 1366-2 for fire resistance properties
Hygiene complies with VDI 6022 part 1 (07/2011), VDI 3803 (10/2002), DIN 1946 part 4 (12/2008), and EN 13779 (09/2007)
Corrosion protection according to EN 15650 in connection with EN 60068-2-52
Closed blade air leakage to EN 1751, class 3
Casing air leakage to EN 1751, class C
Low differential pressure and sound power level
Any airflow direction
Integration into the central BMS with TROXNETCOM

Materials 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 coating

Other components:

Damper blade shaft made of galvanised steel or stainless steel
Plastic bearings
Seals of elastomer

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

Technical data

Nominal sizes: 100 to 315 mm
Casing length: 400 mm
Volume flow rate range: up to 770 l/s or 2770 m³/h
Differential pressure: up to 1500 Pa
Operating temperature: at least 0 – 50 °C **
Release temperature 72 °C or 95 °C (for use in warm air ventilation systems)
Upstream velocity: ≤ 8 m/s with standard construction; ≤ 10 m/s * with spring return actuator

Note:

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

** Temperatures may differ for units with attachments

Type
FKRS-EU Fire damper

Construction
       No entry: standard construction
1       Powder-coated casing
2¹       Stainless steel casing
7       Coated damper blade
1 – 7       Powder-coated casing and coated damper blade
2 – 7¹       Stainless steel casing and coated damper blade
W²       With fusible link 95 °C (only for use in warm air ventilation systems)

Country of destination
DE Germany
Other destination countries upon request

Nominal size [mm]
100
125
150
160
180
200
224
250
280
315

Accessories 1
No entry: none
ER       Circular installation block
TQ       Square installation kit
WA       Wall face frame
GL       Installation kit for flexible ceiling joint

Accessories 2
No entry: none
S0 – AS

Attachments
Z00 – ZL08

¹ Only up to DN 200 when a fire batt system is used
² W can be combined with all constructions listed under

Downloads

product information

Product data sheet – FKRS-EU

FKRS-EU_PD_2023_04_19_DE_en 3,2 MB pdf

certificates

ATEX Certificate FKRS-EU

TROX_21TH0381_EPS-21-ATEX-2-142-X_en_0_signed Certificate 820 KB pdf
CE declaration of conformity

FKRS-EU_CE_2020_03_GB_en Certificate 300 KB pdf
Declaration of hygiene conformity

FKRS-EU_HC_2020_06_05_DE_en Certificate 1,8 MB pdf
Declaration of performance FKRS-EU

FKRS-EU_DoP_005_08_2023_DE_en 450 KB pdf
EU Declaration of conformity - ATEX - FKRS-EU

FKRS-EU_CE_ATEX_2022_01_25_DE_en Certificate 1,3 MB pdf
Leakage classification of TROX ventilation components

LC_v1_2023_09_DE_en Certificate 660 KB pdf

operation manuals

1. Installation and operating manual – FKRS-EU

FKRS-EU_IOM_A00000092709_V1_2023_05_GB_en Installation and operating manual 15 MB pdf
2. Installation and operating manual short version – FKRS-EU

FKRS-EU_SV_IOM_A00000092711_V1_2023_05_GB_en Installation and operating manual 7,4 MB pdf
3. Supplementary Operating Manual - Explosion-proof fire damper – FKRS-EU

FKRS-EU-ATEX_A00000042247_V1_2023_04_GB_en Supplementary Operating Manual 850 KB pdf
4. Additional Manual – Conversion kits

A00000057380/11/2016 Additional Manual 970 KB pdf
5. Supplementary installation manual kit GL2

FKRS-EU_GL2_IM_A00000041590_V1_2023_04_GB_en Additional installation manual 2,5 MB pdf
6. Supplementary installation manual kit WE2

FKRS-EU_WE2_IM_A00000066481_V3_2023_04_GB_en Additional installation manual 9,6 MB pdf

Installation video

In the past, openings for the installation of fire dampers in solid walls or ceiling slabs had to be of the exact size; only minimal tolerances were allowed, if at all. This has changed with fire batt solutions as they provide a new level of flexibility. With a fire batt, fire dampers can in fact be installed in openings that are much larger than the fire damper casing – the perimeter gap may be up to 400 mm wide. It is no longer a strict requirement that an installation opening fits the fire damper exactly.

Installation video

Conversion kits are available to fit TROX fire dampers with a spring return actuator.

Type BLF230 (230 V AC)

Type BLF24 (24 V AC/DC)

Installation video

FKRS-EU Mounting limit switch

FKRS-EU- Converting a BLF actuator to an explosion-proof actuator

FKRS-EU- Converting a BLF actuator to BFL actuator

TROX Services

Productsearch A-Z Find out quickly and simply.

TROX Easy Product Finder Fast. Reliable. Innovative.

Tour de Competence Competence - exciting staged.

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.

FKRS-EU

Compact dimensions, ideal for restricted spaces

Application

Description

Technical information

Downloads

product information

Product data sheet – FKRS-EU

certificates

ATEX Certificate FKRS-EU

CE declaration of conformity

Declaration of hygiene conformity

Declaration of performance FKRS-EU

EU Declaration of conformity - ATEX - FKRS-EU

Leakage classification of TROX ventilation components

operation manuals

1. Installation and operating manual – FKRS-EU

2. Installation and operating manual short version – FKRS-EU

3. Supplementary Operating Manual - Explosion-proof fire damper – FKRS-EU

4. Additional Manual – Conversion kits

5. Supplementary installation manual kit GL2

6. Supplementary installation manual kit WE2

Installation video

Installation video

Installation video

FKRS-EU Mounting limit switch

FKRS-EU- Converting a BLF actuator to an explosion-proof actuator

FKRS-EU- Converting a BLF actuator to BFL actuator

TROX Services

TECHNICALLY NECESSARY

STATISTICS AND WEBSITE ANALYSIS

CONVENIENCE AND PERSONALISATION

FOR THE BEST TROX EXPERIENCE