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Installation instructions
14
11.11 Air flow diagrams
You can find the air flow diagrams below.
Forced ventilation – adjustment diagram
Static pressure drop
pA
L = The A-measured sound pressure level at 10 m² sabin
L = The A-measured sound pressure level relative to 1 pW
WA
Cut-away rings
Existing opening of the reducing disc
Without reducing disc
Airflow
K1
K2
K3
K4
K5
K-factor
2.41
2.82
3.24
3.76
4.31
