FK2-EU

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 damper.
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

① Parameter 

Free area and resistance coefficient, width 850 – 1500 mm

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.

Volume flow rate q_v for differential pressure Δp_st < 35 Pa
200 – 650 mm

Volume flow rate q_v for differential pressure Δp_st < 35 Pa
700 – 1500 mm

Volume flow rate q_v for differential pressure Δp_st < 35 Pa
200 – 650 mm

Volume flow rate q_v for differential pressure Δp_st < 35 Pa
700 – 1500 mm

Fire damper in line with the European product standard DIN EN 15650 in square or rectangle construction style with 2 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 120 (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

• 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

• If several fire dampers are installed in a solid wall or ceiling slab, their combined area must not exceed 3 m²

• Can be installed together with FKRS-EU and FKR-EU in solid walls and ceiling slabs, lightweight partition walls and shaft walls

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

Dry mortarless installation

• In lightweight partition walls and compartment 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 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

Sizes from (B x H) 200 mm x 100 mm to 1500 mm x 800 mm, intermediate sizes in increments of 1 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; coating as an option
Corrosion protection according to EN 15650 in connection with EN 60068-2-52. 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 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. The designs with brushless spring return actuators for opening and closing the fire damper – also when the ventilation system is running and independent of the nominal size – are particularly suited for function testing or the daily shut-off of cable sections.

Explosion-proof constructions for zones 1, 2, 21 and 22 available with limit switch or spring return actuator.

Special characteristics

• Declaration of performance in accordance with European Construction Products Regulation

• Classification according to EN 13501-3, to EI 120
  (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

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

• Plastic bearings

• EPDM and TPE seals

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: ≤ 8 m/s with standard construction; ≤ 12 m/s with spring return actuator

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

• 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 mortar-based installation with circular fire dampers in solid walls, lightweight partition walls clad on both sides and shaft walls with metal stud system with cladding on one side

• 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

2 Construction
No entry: standard construction
1 powder-coated casing, RAL 7001
2 Stainless steel casing
7 coated damper blade

1 – 7 powder-coated casing, RAL 7001, and coated damper blade

2 – 7 Stainless steel casing and coated damper blade

W²⁾ with fusible link 95 °C (only for warm air ventilation systems)B³⁾ with coated fusible link 72 °C
WB³⁾ with coated fusible link 95 °C (only for warm air ventilation systems) 

3 Country of destination
DE Germany
AT Austria

CH Switzerland

NL Netherlands 

4 Nominal size [mm]

B × H × L 

5 Accessories 1

No entry: none

ES¹⁾

GM^1.2)
WA¹⁾
WE¹⁾
GL100^1.2)

GL125^1.2)
GL150^1.2)
GL175^1.2) 

6 Accessories 2
No entry: none
0A – FR 

7 Attachments

Z00 – ZA14 

¹⁾ Only for FK2-EU with L = 500 mm
²⁾ Not combinable with Z...RM and ZA12

³⁾ Only for attachments Z00 - Z03 and Z00EX - Z03EX

FK2-EU Fire damper 

2 Construction
No entry: standard construction
1 powder-coated casing, RAL 7001
2 Stainless steel casing7 coated damper blade
1 – 7 powder-coated casing, RAL 7001, and coated damper blade
2 – 7 Stainless steel casing and coated damper blade 

3 Country of destination
upon request 

4 Nominal size [mm]
B × H × L 

5 Accessories 1
No entry: none
ES 

6 Accessories 2
AA Cover grilles on both ends 

7 Attachments
Z00 - ZB01 

For installation in Germany please note the following applies when used as air transfer unit: If a fire damper with only a mechanical shut-off element is to be used as an air transfer unit, the local building regulations apply. This may require building authority approvals. This must be checked and applied for by others. Usually the use of such air transfer units is restricted to pressure differential systems.