Malfunctions - Burkert 2030 Manuel D'utilisation

Upper control air connection
(for CFB and CFI)
Lower control air connection
(for CFA and CFI)
Fig. 8: Control air connection
dn tightening torques for diaphragms [nm]
epdM / fkM
8 2
15 3.5
20 4
25 5
32 6
40 8
50 12
65 15
Table 11: Tightening torques for diaphragms
32
ptfe
2.5
4
4.5
6
8
10
15
20
English
Types 2030, 2031, 2031 K

Malfunctions

12. MalfuncTiOns
Malfunction Cause / remedial action
Actuator does Control connection interchanged*
not switch.
CFA: Connect lower control connection
CFB: Connect upper control connection
CFI Upper control connection: Close
Lower control connection: Open
* see "Fig. 6: Pneumatic Connection" in the chapter
of the same name.
Control pressure too low
See pressure specifications on the rating plate.
Medium pressure too high
See pressure specifications on the rating plate.
Valve is not Medium pressure too high
sealed. See pressure specifications on the rating plate.
Control pressure too low
See pressure specifications on the rating plate.
Flow rate PTFE diaphragm bulging
→
reduced.
Replace diaphragm.