5 Maintenance
Study the instructions carefully.
The items refer to the parts list and service kits section.
Handle scrap correctly.
Always use genuine Alfa Laval spare parts. Replace seals if necessary.
Step 3
Remove coupling system and balanced plug according to
illustrations (1 to 4).
1. Unscrew flushing tube (41) (or plug (15) if no CIP). Remove
o-ring (40).
2. Pull down lock (44) over piston rod (29).
3. Pull away clamps (43) from spindle liner (42).
4. Pull out balanced plug (94). Make sure spindle liner is free of
both piston rod and balanced plug. If external CIP to leakage
chamber: Remove o-rings (39).
Step 4
1. If present, unscrew flushing tubes (66) and remove o-rings (67)
and nozzles (68 + 69).
2. Pull out sealing element (48) from intermediate piece (37).
3. Pull out o-ring (47), lip seal (49) and o-ring (46) from sealing
element
Step 5
Remove lip seal (57) (or spray nozzle (58) if valve is supplied with
Spiral-Clean). For removal and replacement of seal ring (56),
please see 5.3 Tank plug, replacement of radial seal
NOTE!
For valve size DN/OD51 & DN50:
Lip seal (57) can only be mounted with special tool, please contact
Alfa Laval.
Mounting tool for lip seal (Item no. 9613-0040-01)
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Summary of Contents for Unique TO
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