Alfa Laval Unique Mixproof 3-body, Инструкция по эксплуатации

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5 Maintenance
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.
Step 1
Please see drawing when reassembling according to steps 2 to 6 on this page.
Note! The actuator is maintenance free but repairable.
Step 2
1. Fit guide ring (6) and o-ring (5).
Step 3
Note! Not on actuator size 51mm/DN50
1. Fit o-rings (7 and 9). Place upper piston (8).
2. Fit stop (4).
3. Tighten screws (2). (Secure with glue)
Step 4
1. Place spring assembly (10).
2. Fit o-ring (19) and guide ring (18). Mount distance spacer (11) and screw (11.1) (only for size 51mm/DN50), main piston
(17) and inner stem (27).
Step 5
1. Fit spring assembly (14).
2. Fit o-ring (28) in piston rod, fit o-rings (33 and 31) and guide ring (32) in lower piston and fit o-rings (20, 22 and 23) in bottom.
3. Fit piston rod (29), lower piston (30) and bottom (21).
4. Mount the three parts.
Step 6
1. Fit retaining ring (24).
2. Fit cover disk (25).
3. Mount intermediate piece (37) on actuator.
4. Fit and tighten nuts (36) and washers (35).
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