Page 81
Version 2023-07-27
Fire damper - FDMQ
TPM 103/14
VI. 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
