10.2 Operation
Optical position indicator:
Diaphragm size 8
Valve open
Valve closed
Diaphragm size 10
Valve open
Valve closed
Diaphragm sizes 25 - 50
Valve open
Valve closed
CAUTION
Handwheel can become hot
during operation!
®
Risk of burns!
G
Ensure protective gloves
are worn when operating
handwheel.
CAUTION
Rising handwheel!
®
Danger of crushing
fi
ngers.
10.3 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 valves type GEMÜ 673P9 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. Open the valve approx. 50 %.
2. Unscrew special screw
6
.
6
6
Diaphragm
size 8
Diaphragm size 10
6
Diaphragm sizes 25- 50
37 / 56
673P9
Summary of Contents for 673P9 Series
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