Pressure ratings

divider
Pressure ratings - PE 100

The indicated operating pressures apply for an operating temperature of 20°C.


SDR
S
PN Pipe
Diameter- wall thickness ratio Pipe series Water
max. operating pressure in bar
[C = 1,25]
Gas
max. operating pressure in bar
[C = 2]
41 20 4
33 16 5
26 12,5 6
21 10 8
17 8 10 5
13,6 6,3 12,5
11 5 16 10
9 4 20 12,5*
7,4 3,2 25


*only valid for the Russian market

Pressure reduction factor

Pressure reduction factor 0,5
Pressure reduction factor 0,6
Pressure reduction factor 0,75
Pressure reduction factor 0,8
Due consideration of the pressure reducing factor (ƒB) the maximum allowable operating pressure PFA (20°C water) can be determined.

The following formula is used for this:

PFA = PN pipe x ƒB