2 Technical data
2.1
General data
Nominal sizes 315 – 800 mm
Casing lengths L 495 and 550 mm
Volume flow rate range Up to 6000 l/s / up to 21600 m³/h (at 12 m/s)
Differential pressure range Up to 2000 Pa
Temperature range
1, 3, 4
-20 °C to 50 °C
Release temperature
4
72 °C or 95 °C (for warm air ventilation systems)
Upstream velocity
2, 4
≤ 8 m/s
with fusible link,
≤ 12 m/s with spring return actuator
Closed damper blade air leakage EN 1751, Class 4
Casing leakage EN 1751, Class C
EC conformity
Construction Products Regulation (EU)
Nr. 305/2011
EN 15650 – Ventilation for buildings – Fire dampers
EN 13501-3 – Classification: Fire resistant ducts and fire
dampers
EN 1366-2 – Fire resistance tests for installations: Fire
dampers
5
EN 1751 Ventilation for buildings – Air terminal devices
2006/42/EC - Machinery Directive
Declaration of performance DoP / FKR-EU / DE / 004
1)
T
emperatures 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 possible.
4)
For FKR-EU in Ex construction, see the supplementary operating manual.
5)
Leakage rate of the fire damper system tested at 300 Pa negative pressure.
Technical data
General data
Fire damper FKR-EU 9
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