Optical Position Indicator; Handwheel - GF 514 Betriebsanleitung

Diaphragm valve type 514, 515, 517, 519
NOTE!
Cavitation should be avoided!
Cavitation can cause damage to components in the diaphragm valve.
► Use valve only in optimal control operation.
NOTE!
Valve is seated firmly!
Valves that are in the same position all the time can get stuck over time.
► Operate at least 1-2 times a year to check that they work properly.
6.2

Optical position indicator

The handwheel can be used to open (counterclockwise) or close (clockwise) the valve. The optical position indicator shows the posi-
tion of the valve.
Valve open
6.3

Handwheel

The handwheel can be secured against unintentional operation via the latch.
Handwheel unlocked
The latch can be secured with a lock.
Handwheel locked with a lock
CAUTION!
Do not remove the handwheel during operation!
Removing the handwheel during operation will make it impossible to operate the valve, resulting in a risk of property damage.
► The valve may only be operated with the handwheel mounted.
22
Valve closed
Handwheel locked
Operating Instructions