Burkert Type 2037 - Manual (Page 25)

25
Malfunctions
Upper control air connection
(for CFB and CFI)
Lower control air connection
(for CFA and CFI)
Fig. 20: Control air connection
12 malfuncTiOns
Malfunctions cause / remedial action
Actuator
does not
switch
Control connection interchanged*
CFA:
→
Connect lower control connection
CFB:
→
Connect upper control connection
CFI
→
Upper control connection: Close
Lower control connection: Open
* see “Fig. 20”
Control pressure too low
See pressure specifications on the type label.
Medium pressure too high
See pressure specifications on the type label.
Valve is not
sealed
Medium pressure too high
See pressure specifications on the type label.
Control pressure too low
See pressure specifications on the type label.
Flow rate
reduced
PTFE diaphragm bulging
Replace diaphragm.
english
Type 2030, 2031, 2031 K, 2032,
2033, 2037