Page 41
Version 2022-12-20
FDMQ 120 - Fire damper
TPM 166/22
II. TECHNICAL DATA
Pressure loss
Pressure loss calculation
Determination of pressure loss by using diagram
ρ
= 1,2 kg/m
3
Δp
=
ξ
·
ρ
·
w
2
2
Δp
[Pa]
presure loss
w
[m/s]
air flow speed in nominal damper section
ρ
[kg/m
3
]
air density
ξ
[-]
coefficient of local pressure loss for the nominal damper section
