Standard Factor - ABB FV4000 Operating Instruction

8.7.5

Standard factor

Under constant operating conditions (constant pressure and temperature), the standard factor
can be entered here.
The standard factor is defined as the ratio between standard flow and operating flow:
Standard factor =
Since the mass flow is constant, the following formula applies:
Qn
Qv
Qn Standard flow
Qv Operating flow
P
T
ρV Operating density
ρN Standard density
8.7.6 Operating density
Please refer to the "AP-Calc" product selection and dimensioning program, which ABB provides
free of charge.
D184B097U02
Qn , 1 ( 013
=
Qv , 1
ρ
V
=
ρ
N
Operating pressure [bar ü]
Temperature [°C]
+
bar ) p 273
×
+
013 bar ( 273 ) T
FV4000 / FS4000
Parameterization
87