bürkert 2030 Bedienungsanleitung Seite 10

Medium temperature for diaphragms:
The indicated medium temperatures apply only to media
which do not corrode or swell the diaphragm materials.
The behavior of the medium with respect to the diaphragm
may be changed by the medium temperature.
The function properties, in particular the service life of the
diaphragm, may deteriorate if the medium temperature
increases.
Do not use the diaphragms as steam shut-off element.
Material Temperature
EPDM (AB) -10...+130 °C
EPDM (AD) -10...+143 °C
FKM (FF) 0...+130 °C
PTFE (EA) -10...+130 °C
Advanced -5...+143 °C
PTFE (EU)
Gylon (ER) -5...+130 °C
Tab. 3: Medium temperature for diaphragms
10
Remarks
Steam sterilisation
up to +140 °C / 60 min
Steam sterilisation
up to +150 °C / 60 min
No steam / dry heat
up to +150 °C / 60 min
Steam sterilisation
up to +140 °C / 60 min
Steam sterilisation
up to +150 °C / 60 min
Steam sterilisation
up to +140 °C / 60 min
english
Type 2030, 2031, 2032, 2033,
Systemdescription
6.6.2 Maximum permitted medium pressure
Permitted medium pressure depending on the medium temper-
ature with plastic valve body:.
DN 65 - 100
10
8
6
4
PVC
2
20 40 60 80 100 120 140
Temperature [°C]:
Fig. 4: Graph of medium pressure / Medium temperature with plastic
valve body
2037
PVDF
PP