Diagrams
Gases of fluid group 1
● Pipelines according to Article 4 (a) (i) First dash
● Exception: unstable gases belonging to Categories I and II must be included in Category III.
I
II III
Article 3
Paragraph 3
0,1 1 10 100 1000 10000
25
DN
PS = 0,5
350
1
10
100
1000
0,5
PS [bar]
DN = 25
DN = 100DN = 100
DN = 350
PS · DN=3500
PS · DN=1000
Figure 11-1 Diagram 1
Gases of fluid group 2
● Pipelines according to Article 4 (a) (i) Second dash
● Exception: liquids at temperatures > 350 °C belonging to Category II must be included in
Category III.
I
II III
Article 3
Paragraph 3
0,1 1 10 100 1000 10000
32
DN
PS = 0,5
250 2000
1
10
100
1000
0,5
PS [bar]
DN = 32
DN = 100
DN = 250
PS · DN = 5000
PS · DN = 1000
PS · DN = 3500
7000
Figure 11-2 Diagram 2
Technical data
11.12 PED
SITRANS FC330
210 Operating Instructions, 01/2019, A5E44030648-AB