FSR
Project planning
4.333
FLEXWELL® Safety Pipe
Fluid engineerin
g
Pressure loss diagramme for gaseous propan
e
Temperature:
15 °
C
Specific weight:
8 kg/m3 (3 bar
)
Dynamic viscosity:
7.9 · 10–6 Ns/m2 = kg/ms
4
m
/
s
100
0
2
m
/
s
100
1
0
➤
F
l
o
w
v
o
l
u
m
e
[
k
g
/
h
]
8
6
5
4
3
2
8
6
5
4
2
8
6
5
4
3
2
1
8
6
5
4
3
2
1
m
/
s
0
.
5
m
/
s
DN
10
0
DN
8
0
DN
6
5
DN
5
0
DN
4
0
DN
3
2
DN
2
5
DN
2
0
DN
1
2
0.
1
2
3 4 5 6 7 8
2
3 4 5 6 7 8
2
3 4 5 6 7 8
2
3 4 5 6 7 8
0.1
1
10
100
1000
0.01
0.1
1
10
10
0
0.001
0.01
0.1
1
10
Pa/m
mWS/
m
mbar/m
=
hPa/m
Pressure loss
Example
:
Pipe DN 32
With a
flow volume of 30 kg/
h
at a speed of c. 0.9 m/s
the pressure loss is 5.6 · 10–2 mbar/m = 5.6 · 10–2 hPa/m
04.05.2022 Subject to technical changes. Page 19
