Normal Operation; Manual Operation - Samson 3251-E Mounting And Operating Instructions

Operation

7.1 Normal operation

The handwheel of valves with actuators fitted
with a handwheel must be in the neutral po-
sition during normal operation.

7.2 Manual operation

Valves with actuators fitted with a handwheel
can be manually closed or opened in case of
supply air failure.
7-2 EB 8052-E EN