Assembly / Disassembly Of Spare Parts; Valve Disassembly (Removing Bonnet From Body); Removing The Diaphragm; Mounting The Diaphragm - GEM 611 Manual

Locking the handwheel:
Press down key in the lock (arrow) and lock
by turning it left. The key can be removed.
Unlocking the handwheel:
Insert key into lock (arrow) and unlock by
turning it right. The key cannot be removed.
11 Assembly / disassembly
of spare parts
GEMÜ 611
18
19
20
GEMÜ 671
19
18
11.1 Valve disassembly
(removing bonnet
from body)
1. Move bonnet A to the open position.
2. Remove bonnet A from valve body 1.
3. Move bonnet 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).
611, 671_us

11.2 Removing the diaphragm

Important:
Before removing the diaphragm,
please remove the bonnet, see
"Valve
bonnet 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).
A

12.3 Mounting the diaphragm

12.3.1 General notes
2
Important:
Mount the correct diaphragm that
1
suits the valve (suitable for medium,
medium concentration, temperature
and pressure). The diaphragm is a
A
wearing part. Check the technical
condition and function of the dia-
phragm valve before commissioning
and during the whole term of use.
2
Carry out checks regularly and de-
termine the check intervals in ac-
1
cordance with the conditions of use
and / or the regulatory codes and
provisions applicable for this appli-
cation.
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 and the function of the
valve is no longer ensured.
28 / 40
disassembly (removing