Type FKR-EU

For large diameters, with or without a flange

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

Nominal sizes: 315 – 800 mm
For mortar-based installation in solid walls, ceiling slabs and lightweight partition walls
Dry mortarless installation into lightweight partition walls
Low differential pressure and sound power level
Flanges as an option
Explosion-proof construction (ATEX) as an option
Optional stainless steel casing or powder-coated casing for increased corrosion protection
Integration into the central BMS with TROXNETCOM

Optional equipment and accessories

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

Fire damper Type FKR-EU 00137501_0

Tested to VDI 6022

Application

Fire dampers of Type FKR-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 4
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
Explosion-proof constructions for zones 1, 2, 21, 22

Classification

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

Nominal sizes

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

Parts and characteristics

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

Attachments

Limit switch for damper blade position indication
Limit switch for damper blade position indication for use in potentially explosive atmospheres
Spring return actuator for 24 V AC/DC or 230 V AC supply voltage
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

Accessories

Flexible connectors
Cover grille
Extension piece
Installation kit TQ

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
The release mechanism is accessible and can be tested from the outside
Suitable for the connection of ducts, flexible connectors or a cover grille
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 in 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 FKR-EU-FL with fusible link

① Casing
② Damper blade
③ Fusible link
④ Release mechanism
⑤ Lever
⑥ Travel stop for CLOSED position
⑦ Release tab
⑧ Flange

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. Both regular limit switches and explosion-proof limit switches are available for zones 1 and 2 (gases, mists, vapours) and for zones 21 and 22 (dusts) to indicate damper blade positions.

Construction with spring return actuator

Functional description

The fire damper is used as a shut-off device to prevent fire and smoke from spreading through ducting in areas with potentially explosive atmospheres. The fire damper is suitable for supply air and extract air systems in potentially explosive atmospheres. For the operation of the fire damper, the operating and installation manual and the technical data in the supplementary operating manual must be observed.

Nominal sizes	315 – 800 mm
Casing lengths	495 and 550 mm
Volume flow rate range	Up to 6000 l/s or up to 21600 m³/h
Differential pressure range	Up to 2000 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; ≤ 12 m/s with spring return actuator

Note: Upstream velocity for the explosion-proof actuator ExMax/RedMax-15-BF TR is ≤ 10 m/s

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

** Temperatures may differ for units with attachments; details for other applications are available on request.

Volume flow rate at differential pressure Δpst < 35 Pa

L_WA [dB(A)]	35	45	35	45
Nominal size	V
mm	l/s		m³/h
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
800	2170	3130	7810	11250

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Circular fire damper with or without flanges, 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 into solid walls and ceiling slabs, and into lightweight partition walls and fire walls with cladding on both sides; for mortar-based installation in shaft walls with or without metal support structure and with cladding on one side; for dry mortarless installation in lightweight partition walls and fire walls with cladding on both sides.

Casing length 495 mm or 550 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.

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 4
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
Explosion-proof constructions for zones 1, 2, 21, 22

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 in 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: 315 to 800 mm
Casing lengths: 495 and 550 mm
Volume flow rate range: up to 6000 l/s or 21600 m³/h
Differential pressure: up to 2000 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; ≤ 12 m/s * with spring return actuator

Note: Upstream velocity for the explosion-proof actuator ExMax/RedMax-15-BF TR is ≤ 10 m/s

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

** Temperatures may differ for units with attachments

Type
FKR-EU Fire damper

Flange
No entry: none (construction with spigots)
FL² Flanges on both ends

Construction
No entry: none
1       Powder-coated casing
2       Stainless steel casing
7       Coated damper blade
1 – 7       Powder-coated casing and coated damper blade
2 – 7       Stainless steel casing and coated damper blade
W¹       With fusible link 95 °C (only for use in warm air ventilation systems)