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. A/A = Air/air activated.
Step 5
Shut-off valve:
Remove lip seal (14)
(For sizes DN125-150: Remove lip seal (14) and guide ring (27)).
Shut-off valve Change-over valve
TD425-058_1
TD425-072_1
Step 6
Shut-off valve:
1. Remove screw (19h, 20h)
2. Dismantle the complete valve plug
Shut-off valve Change-over valve
TD425-059_1
TD425-073_1
21
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