Burkert 2030 Instructions De Service page 6

Permissible media temperatures for membranes
Membrane
material
AB (EPDM)
FF (FKM)
EA (PTFE)
The media temperatures specified are generally only applicable to media which do not
NOTE
attack membrane materials or cause swelling or similar behaviour of the membranes.
Please note that the behaviour of the media with respect to the membranes may change
with temperature.
The functional properties, in particular the life of the membrane, can deteriorate with
increasing temperature.
Pressure temperature diagram for plastic casings
CAUTION!
The permissible operating pressure with plastic casings must be observed depending on
the temperature of the medium.
Pressure values for control function "A"
DN
[mm]
65
65
80
80
100
4 - 2030/2031K big
Temperature range
[° C]
-10 to +130
-5 to + 130
-10 to +130
Drive sice Control pressure
Ø
min. - max.
[mm] [bar]
125 5,5 - 7
175 4,5 - 6
175 5,0 - 6
225 5,0 - 6
225 5,0 - 6
Remarks
Steam sterile up to 150° C
Dry up to 150° C
otherwise only short-term up to 150° C
Steam sterile up to 150° C
Max. operating pressure
EPDM PTFE
[bar] [bar]
7 4,5
10 8
5 4,5
10 10
8 4