Gemü 601 Original Einbau- Und Montageanleitung Seite 26

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 and function of the
valve 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.
Important:
Incorrectly
may cause valve leakage / emission
of medium. In this case remove
the diaphragm,
complete valve and diaphragm
and reassemble again proceeding
as described above.
Compressor and bonnet fl ange seen from
below:
The compressor is fi xed to the spindle.
601, 602_us
mounted diaphragm
check the
12.3.2 Mounting a
concave diaphragm
Recess of compressor
Tab
1. Move bonnet A to the closed position.
2. Place the diaphragm 2 with the
fastening spigot in an inclined position
at the recess of the compressor.
3. Screw / push it in manually.
4. Align diaphragm tab (identifying
manufacturer and material) in parallel to
valve body weir.
12.4 Bonnet mounting
on the valve body
1. Move bonnet A to the closed position.
2. Open bonnet A approx. 20 %.
3. Clean all parts of the remains of product
and contamination. Do not scratch or
damage parts during cleaning!
4. Position bonnet A with the mounted
diaphragm 2 on the valve body 1, take
care to align the compressor weir and
valve body weir.
5. Insert and tighten the bolts 18 with
washers 19 by hand (hand tight only).
6. Fully tighten the bolts 18 diagonally.
7. Ensure that the diaphragm 2 is
compressed evenly (approx. 10-15 %,
visible by an even bulge to the outside).
8. Check tightness of completely
assembled valve.
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Fastening spigot