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Duct connection size
Airflow
qv*
Description

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WH25-100

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MISSING

Circular fire damper for air duct system that penetrate fire resistance walls or floors. With 25 mm thick closing blade made from refractory material. Casing leakage performance class C according to Standard EN1751:2014 section C.3.

Total pressure loss
Δpt
Pa
Sound power level
LwA
dB(A)
Velocity
v
m/s
  • Pressure and sound power diagram
    MISSING
    Hz 63 125 250 500 1K 2K 4K 8K
    Kok - - - - - - - -
    ΔL - - - - - - - -

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