3
ACTUATOR INSTALLATION
3.1
Lifting
The actuators are lifted using slings (see figure below).
The specifications for these slings must be suitable for the weight of the
actuators (allow for an additional 50%).
Never lift the valve by the actuator.
Never lift an actuator by its handwheel: it may be twisted or broken by its
!
own weight, and its shaft damaged.
When an actuator is installed on a valve, the slings must be mounted on the
valve and not on the actuator.
According to the weight of the valve, ensure that the new centre of gravity
does not tilt the unit.
Actuator
Gearbox
10