Valve Disassembly (Removing Actuator From Body); Removing The Diaphragm; Mounting The Diaphragm; General Notes - Gemü 695 Originalbetriebsanleitung

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
actuator from body)".
1. Unscrew the diaphragm.
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).

11.3 Mounting the diaphragm

11.3.1 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.
695_us
(removing
and function of
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 damage
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.
Important:
Incorrectly
may
emission of medium. In this case
remove the diaphragm, check the
complete valve and diaphragm and
reassemble again proceeding as
described above.
The compressor is loose for all diaphragm
sizes.
Compressor and actuator fl ange seen from
below:
Place the washer (arrow) loosely on the
G
valve spindle.
the
32 / 44
mounted diaphragm
cause valve leakage /