Samson 3273 Mounting And Operating Instructions page 33

3. To change from manual to automatic op-
eration, put the handwheel into the neu-
tral position (see section 7.1).
4. Lock the handwheel. Turn the locking bolt
by at least 90° until it engages again to
lock the handwheel (see Fig. 11).
Special version without pneumatic actuator
Note
There is no neutral travel in versions without
pneumatic actuator. One turn of the hand-
wheel always immediately causes a change
in valve travel.
1. Pull the locking bolt and turn it 90° to un-
lock the handwheel (see Fig. 11).
Table 4: Turning direction of the handwheel
SAMSON globe
valve
SAMSON three-
way valve
Tip
The handwheel is marked 'Open/Close' and has directional arrows in the version for
SAMSON globe valves.
A label is affixed to the version for SAMSON three-way valves on the handwheel, which
indicates in which direction the threaded rod is moved when the handwheel is turned (see
Table 4).
EB 8312-2 EN
Open the valve
Turn the handwheel counterclockwise
Verteilventil
Diverting valve
Vanne de distribution
2. Turn the handwheel. The turning direc-
tion depends on the mounted valve (see
Table 4).
3. Turn the locking bolt by at least 90° until
it engages again to lock the handwheel
(see Fig. 11).
Turn the handwheel clockwise
close A
open B
Mischventil
A
AB
Mixing valve
Vanne mélangeuse
B
Operation
Close the valve
close B
open A
A
AB
B
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