Samson 3251 - Normal and Manual Operation Modes

7-2 EB 8052 EN
Operation
7.1 Normal operation
The handwheel of valves with actuators tted
with a handwheel must be in the neutral po-
sition during normal operation.
7.2 Manual operation
Valves with actuators tted with a handwheel
can be manually closed or opened in the
event of failure of the auxiliary energy sup-
ply.