Burkert 2031 - Temperature Limits and Pressure Specs

9
Technical Data
Maximum permitted medium pressure for control function A
The values apply to body made of:
• Plastic,
• VA forged steel and VA precision casting, VA block material as well
as VA tube-formed body with socket, DIN welding neck flange and
welded connection in accordance with EN ISO 1127 (ISO 4200).
Orifice
(Diaphragm
size)
DN [mm]
Actuator
size ø
[mm]
Max. sealed medium pressure [bar]
Pressure on one
side
Pressure on both
sides
EPDM/
FKM
PTFE EPDM/
FKM
PTFE
65 175 8.0 5.0 5.0 4.5
80
175 5.0 4.5 2.5 2.0
225 10.0 10.0 6.0 4.5
100 225 8.0 4.0 3.5 1.5
Tab. 4: Maximum permitted medium pressure CFA
Medium temperature for body:
Body material
Temperature
Stainless steel -10 ... +140 °C
PVC (see PT-graph) -10 ... +60 °C
PVDF (see PT-graph) -10 ... +120 °C
PP (see PT-graph) -10 ... +80 °C
Tab. 2: Medium temperature for body
Medium temperature for diaphragms:
Material
Temperature Remarks
EPDM / PTFE -10 ... +130 °C Steam sterilization up to +150 °C
FKM -5 ... +130 °C
Dry up to +150 °C
Otherwise only briefly up to +150 °C
Tab. 3: Medium temperature for diaphragms
6.3.2 Maximum permitted medium pressure
Permitted medium pressure depending on the medium temperature.
DN 65 - 100
10
8
6
4
2
20 40 60
80
100 120
140
PVC
PVDF
PP
Medium pressure [bar]
Temperature [°C]:
Fig. 3: Graph of medium pressure / Medium temperature
english
Type 2030, 2031, 2031 K, 2032,
2033, 2037