17
1
3
5
4
2
6
Handle scrap correctly.
NC = Normally closed.
NO = Normally open.
A/A = Air/air activated.
2. Dismantling of valve
Air (NC, A/A)
Stop valve Change-over valve
Stop valve Change-over valve
1. Remove screw (19h, 20h).
2. Dismantle the complete valve plug.
Change-over valve:
1. Supply compressed air to the actuator (Only NC).
2. Loosen and remove lower clamp (15).
3. Remove lower valve body (18).
4. Pull out seal ring (17).
5. Release compressed air.
Pay special attention to the warnings!
Air (NO, A/A)
Air (NO, A/A)
Stop valve Change-over valve
1. Supply compressed air to the actuator (only
NO).
2. Remove clip assembly (11).
(For sizes DN125-150: Unscrew valve plug
(19, 20)).
3. Remove valve plug (19, 20).
4. Release compressed air.
Pay special attention to the warnings!
Change-over valve:
1. Remove upper clamp (15).
2. Remove upper valve body (16).
Study the instructions carefully.
The items refer to the drawings and the parts list on the
pages 22-37.
Maintenance
Remove lip seal (14).
(For sizes DN125-150: Remove lip seal (14) and
guide ring (27)).
Stop valve:
1. Supply compressed air to the actuator (Only NC).
2. Loosen and remove clamp (15).
3. Lift out the actuator.
4. Release compressed air.
Pay special attention to the warnings!
Air (NC, A/A)
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