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 6
1. Inspect the seal.
2. Release air at 3 different positions of the circumference.
5.5
Assembly of valve
Step 1
1. Fit o-ring (47) (do not twist), lip seal (49) and o-ring (46) in
sealing element (48) (Lubricate with Klüber Paralique GT 703).
NOTE:
The o-ring should be gently pressed into the groove
2. Fit sealing element in intermediate piece (37).
3. Place o-rings (67) and mount flushing tubes (66). Be sure to
align nozzles (68 + 69) towards recess.
Lightly lubricate inner grove with Klüber Paralique GT
703
Step 2
1. Place lip seal (57) in upper plug (or spray nozzle if the valve has
SpiralClean) and the o-ring (38) in the lower plug.
2. Press tank plug (93) rapidly into balanced plug (94) through
the lip seal.
NOTE:
Do not damage the lips when tank plug (93) with o-ring (38)
passes the lip 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)
27
Summary of Contents for Unique TO
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