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ALFA LAVAL UNIQUE RV-P VALVE INSTRUCTION MANUAL—REV 6/20
5 Maintenance
Study the instructions carefully. The items refer to the parts list and service kits section. Handle scrap correctly.
NC = Normally closed.
NO = Normally open.
5.3 Plug seal replacement
1. Remove the old seal ring using a knife, screwdriver or similar.
Be careful not to damage metal parts.
2. Pre-mount plug seal without pressing it into the groove.
3. Squeeze plug seal into the groove using opposite pressure points.
4. Release compressed air behind plug seal.
N
Noottee!! For plug seal replacement, please read the instructions in the service kit.
5.4 Valve assembly
Reverse the order of section 5.2 Dismantling the valve.
Lubricate O-ring (21) and lip seal (25) with Klüber Paraliq GTE 703.
Remember to tighten spindle and plug to a torque of 30 Nm (using two 17 mm spanners).
If there are vibrations in the pipeline, Alfa Laval recommends the use of Loctite no. 243.
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