Burkert 2031 Manuel Utilisateur page 9

4.1 MAINTENANCE AND STORING
4.1.1 Maintenance and order codes of the spare parts
- Regularly check if the diaphragm is not worn. Refer to the table below to have
the order code of the diaphragm corresponding to your valve (CSM diaphragms on
request).
If your process uses muddy or abrasive fluids or fluids reaching high temperatures,
the diaphragm must be checked often.
DN of body EPDM diaphragm
8
15
20
25
40
50
80
100
- The gaskets (see figure hereafter) can also be replaced: refer to the table below
to have the order code (ident. no.) of the gasket set corresponding to your valve.
Actuator size
C
D
E
F
G
H
K, L
4.1.2 Storing
If the valve is stored for a long time, unscrew the body screws to avoid permanent change
in shape of the diaphragm.
2031-2032-2033
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MAINTENANCE
Order codes for the diaphragms
FPM diaphragm
642147
642140
642141
642142
643645
643646
650082
650084
DN of body
8
15
15, 20, 25
20, 25
40, 50
40, 50
Please contact your Burkert agent
9
PTFE / EPDM diaphragm
640597
640598
640599
640600
643653
643656
650083
650085
Order codes for the gaskety sets
PPS actuator
011465
011477
011488
011492
012127
011494
643648
636336
643234
643235
643659
643660
650087
650088
PA actuator
-
011426
011440
011448
012125
011464