Assembly / Disassembly Of Spare Parts; Valve Disassembly (Removing Bonnet From Body); Removing The Diaphragm; Mounting The Diaphragm - GEM 617 Installation, Operating And Maintenance Instructions

12 Assembly / disassembly
of spare parts
22
18
19
20
23
12.1 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).

12.2 Removing the diaphragm

Important:
+
Before removing the diaphragm,
please remove the bonnet, see
"Valve disassembly
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!
617_us
3. Check all parts for potential damage.
4. Replace damaged parts (only use
genuine parts from GEMÜ).

12.3 Mounting the diaphragm

A

12.3.1 General notes

2
1
(removing
24 / 32
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 and function of the
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 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 mounted
may cause valve leakage / emission
of medium. In this case remove the
diaphragm, check the complete
valve and diaphragm and reassemble
again proceeding as described
above.
diaphragm