Gemü 620 Original Einbau- Und Montageanleitung Seite 30

10.3 Connecting the
control medium
Important:
Connect the control medium
lines tension-free and without any
bends or knots! Use appropriate
connectors according to the
application.
Thread size of the control medium connector:
G1/4
Control function
1 Normally closed (NC)
2 Normally open (NO)
3 Double acting (DA)
For connectors 2 / 4 see photos on page 29
11 Assembly / disassembly
of spare parts
620
Connectors
2: Control medium (open)
4: Control medium (close)
2: Control medium (open)
4: Control medium (close)
11.1 Valve disassembly
(removing actuator
from body)
1. Move actuator A to the open position.
2. Remove actuator A from valve body 1.
3. Move actuator A to the closed position.
Important:
After disassembly, clean all parts
of contamination (do not damage
parts). Check parts for potential
damage, replace if necessary (only
use genuine parts from GEMÜ).
11.2 Removing the diaphragm
Important:
Before removing the diaphragm,
please remove the actuator, see
"Valve disassembly (removing
actuator from body)".
1. Unscrew the diaphragm 2.
2. Clean all parts of the remains of product
and contamination. Do not scratch or
damage parts during cleaning!
3. Check all parts for potential damage.
4. Replace damaged parts (only use
genuine parts from GEMÜ).
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