Assembly / Disassembly Of Spare Parts; Valve Disassembly (Removing Bonnet From Body); Removing The Diaphragm; Mounting The Diaphragm - GEM 674 Installation, Operating And Maintenance Instructions

12 Assembly / disassembly
of spare parts
19
18
GEMÜ 674
GEMÜ 675
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).
674, 675

12.2 Removing the diaphragm

Important:
Before removing the diaphragm,
please remove the bonnet, see
"Valve disassembly (removing
A
bonnet from body)".
1. Unscrew the diaphragm.
2. Clean all parts of the remains of product
20
and contamination. Do not scratch or
2
damage parts during cleaning!
3. Check all parts for potential damage.
4. Replace damaged parts (only use
genuine parts from GEMÜ).
1

12.3 Mounting the diaphragm

12.3.1 General information

A
Important:
Mount the correct diaphragm
that suits the valve (suitable for
20
19
medium, medium concentration,
2
temperature and pressure). The
19
diaphragm is a wearing part.
18
Check the technical condition and
function of the diaphragm valve
1
before commissioning 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.
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