5 Maintenance
Maintain the valve/actuator regularly.
Study the instructions carefully and pay special attention to the warnings!
Always use genuine Alfa Laval spare parts, and keep spare rubber seals and guide rings in stock. Store seals in closed bag.
The items refer to the parts list and service kits section.
Recommended spare parts: Service kits (see 6 Technical data)
Order service kits from the service kits section (see 6 Technical data)
Ordering spare parts: Contact the Sales Department.
The valve is designed so that internal leakages do not result in the products becoming mixed.
Internal leakage in the valve is externally visible. Study the instructions carefully.
Always keep spare rubber seals and guide rings in stock. Check the valve for smooth operation after service.
Valve rubber seals
Valve plug seals
Valve guide rings
Preventive maintenance
Replace after 12 months(*)
Replace after 12 months(*)
Replace when required
Maintenance after leakage
(leakage normally starts slowly)
Replace after production
cycle
Replace after production
cycle
Planned maintenance
-
Regular inspection for
leakage and smooth
operation
-
Keep a record of the valve
-
Use the statistics for
planning of inspections
-
Regular inspection for
leakage and smooth
operation
-
Keep a record of the valve
-
Use the statistics for
planning of inspections
Replace when required
Lubrication
When assembling
Klüber Paraliq GTE 703 or similar
USDA H1 approved oil/grease (**)
(suitable for EPDM)
When assembling
Klüber Paraliq GTE 703 or similar
USDA H1 approved oil/grease (**)
(suitable for EPDM)
None
NOTE!
Lubricate thread in valve plug parts with Klüber Paste UH1 84-201 or similar.
(*) Depending on working conditions! Please contact Alfa Laval.
(**) All products wetted seals.
Repairing of actuator:
-
The actuator is maintenance-free but repairable.
-
If repair is required, replacing all actuator rubber seals is recommended.
-
Lubricate seals with Molykote Longterm 2 (black).
-
To avoid possible black remains on pos. 1 and 29, Alfa Laval recommends Klüber Paraliq GTE703 (white) for these two
positions.
Pre-use check
1. Supply compressed air to AC1, AC2 and AC3 one by one.
2. Operate the valve several times to ensure that it operates
smoothly.
Pay special attention to the warnings!
Operate!
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