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 3
Remove coupling system and upper plug according to illustrations
(1-4)
1. No SpiralClean in leakage chamber:
A. Unscrew plug (15)
SpiralClean in leakage chamber:
A. Unscrew flushing tube (41).
B. Remove o-ring (40)
2. Pull up lock (44) over piston rod (29)
3. Pull away clamps (43) from spindle liner (42)
4. Pull out upper plug (55). Make sure spindle liner (42) is free of
both piston rod and upper plug.
SpiralClean in leakage chamber: Remove both o-rings (39)
on valve plug (55) and piston rod (29)
29
43
42
44
43
*41
15
2319-0210
*39
*39
*40
55
(1)
(2)
(3)
(3)
(4)
Step 4
A
Dismantling of upper sealing element
1. Remove sealing element (48) from intermediate piece (37).
2. Pull out o-ring (47) and lip seal (49) from sealing element (48)
3. Remove guide ring (45).
47
67
49
69
66
46
68
66
2319-0211
47
49
48
A
B
37
45
45
67
48
25
