Burkert Type 2105 - Manual (Page 13)

13
Technicaldata
7.4 Operating conditions
7.4.1 Temperature ranges
permitted ambient temperature actuators
actuator size actuator material environment 2)
ø 50 mm
PPS
0 – +60 °C 3)
0 – +90 °C 4)
ø 70 mm
ø 90 mm
ø 130 mm
Tab. 1: Permitted ambient temperature Actuators
2)
If using a pilot valve / control unit, observe its tem-
perature range.
permitted medium temperature for body
Body material medium
Cast body (VG) 1.4435 (AISI 316L)
-10 – +150 °C
Forged body (VS)
1.4435 BN2 (AISI 316L)
according to ASME BPE 1997
Tab. 2: Permitted medium temperature for body
3)
Pilot air ports with push-in connector
4)
Pilot air ports with threaded bushing
permitted 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 dia-
phragm, may deteriorate if the medium temperature increases.
diaphragm medium remarks
EPDM -10 – +130 °C Steam sterilisation: up to +150 °C
FKM 0 – +130 °C
• dry up to + 150 °C
• otherwise only briefly up
to +150 °C
PTFE -10 – +130 °C Steam sterilisation: up to +150 °C
Tab. 3: Permitted medium temperature for diaphragms
7.4.2 pressure ranges
pilot pressure for valves with pneumatic position controller
To ensure reliable operation with pneumatic position con-
troller, observe the permitted minimum and maximum pilot
pressure!
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Type 2103, 2104, 2105