C67
11.3 Setting the seal adjuster
Important:
Only set the seal adjuster when
the valve is completely assembled
(with diaphragm and valve body)
and in a cold condition!
The GEMÜ CleanStar
®
C67 valves have
a mechanical seal adjuster as standard to
protect the sealing diaphragm.
Standard setting:
The valve is sealed when the handwheel is
completely closed (turned fully clockwise).
Setting the seal adjuster:
Procedure:
1. Unscrew the locking screw
6
and remove
it.
2. Pull o
ff
the handwheel
H
.
3. Unscrew the adjusting ring
4
and remove
it.
4. Place the handwheel
H
upside down on
the square of the bonnet spindle.
5. Close the valve gently by turning
handwheel
H
("CLOSED").
6. Pull o
ff
handwheel
H
from the bonnet
spindle.
7. Screw the adjusting ring
4
onto the
bonnet spindle until the bottom side of
the adjusting ring
4
sits on the face of the
valve bonnet.
8. Push handwheel
H
in its original position
on the square of the bonnet spindle
(observe the teeth of the adjusting ring
4
and the handwheel
H
).
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Summary of Contents for C67 CleanStar
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