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Control function
1
Normally closed (NC)
2
Normally open (NO)
3
Double acting (DA)
For connectors 2 / 4 see photo on page 23
12 Assembly / disassembly
of spare parts
19
18
12.1
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).
605_us
Connector
2: Control medium (open)
4: Control medium (close)
2: Control medium (open)
4: Control medium (close)
A
2
1
12.2 Removing the diaphragm
Important:
+
Before removing the diaphragm,
please remove the actuator, see
chapter 12.1 "Valve disassembly
(removing actuator from body)".
1. Pull out 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).
12.3 Mounting the diaphragm
12.3.1 General notes
Important:
Mount the correct diaphragm that
suits the valve (suitable for medium,
medium concentration, temperature
and pressure). The diaphragm is a
wearing part. Check the technical
condition
diaphragm valve before commis-
sioning and during the whole term
of use. Carry out checks regularly
and determine the check intervals
in accordance with the conditions
of use and / or the regulatory codes
and provisions applicable for this
application
Important:
If the diaphragm is not screwed into
the adapter far enough, the closing
force is transmitted directly onto
the threaded pin and not via the
compressor. This will cause dama-
ge and early failure of the diaphragm
and thus leakage of the valve. If the
diaphragm is screwed in too far no
perfect sealing at the valve seat will
be achieved. The function of the
valve is no longer ensured.
24 / 34
and
function
of
the
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