Maintenance Work - Burkert 2103 Instructions De Service

Warning!
for control function i – danger if control pressure fails!
For control function I control and resetting occur pneumatically. If
the pressure fails, no defined position is reached.
• To ensure a controlled restart, first pressurise the device with
control pressure, then switch on the medium.
10.2. maintenance Work
10.2.1. actuator:
The actuator of the diaphragm valve is maintenance-free provided it
is used according to these operating instructions.
10.2.2. Wearing parts of the diaphragm
valve:
Parts which are subject to natural wear:
• Seals
• Diaphragm
→
If leaks occur, replace the particular wearing part with an appro-
priate spare part.
(see chapter entitled "Replacement parts").
A bulging PTFE diaphragm may reduce the flow.
→
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Type 2103
Maintenance, Cleaning
10.2.3. inspection intervals
→
Check diaphragm for wear after maximum 10
Muddy and abrasive media require correspondingly shorter
inspection intervals!
10.2.4. service life of the diaphragm
The service life of the diaphragm depends on the following factors:
• Diaphragm material
• Medium
• Medium pressure
• Medium temperature
• Actuator size
• Control pressure for SFB and SFI.
protecting the diaphragm
→
For SFA match the actuator size (actuator force) to the medium
pressure to be actuated. If required, select the actuator with
reduced spring force EC04.
→
For SFB and SFI try and select the control pressure not higher
than is required to actuate the medium pressure.
switching cycles.
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