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WKS25

WKS25B-100-200
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MISSING
Fire damper

Rectangular fire damper for air duct system that penetrate fire resistance boundaries. With 25 mm thick closing blade made from refractory material. Casing leakage performance class C according to Standard EN1751:2024.

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
    Lw 29 13 6 0 -5 -13 -28 -15
    Coct 25 9 2 -4 -9 -17 -32 -19
    ΔL - - - - - - - -
Logo WKS25

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