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September 2021
Installation, Operation and Maintenance Manual
VCIOM-01249-EN Rev. 0
Installation 11
Section 3: Installation
Figure 11
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3.4 Mounting the Actuator onto the Valve
Lubricate the valve stem. Thoroughly clean the coupling surfaces of the valve and actuator
anges, degreasing them carefully since torque is transmitted by friction.
Lift the actuator with slings suitable for its weight. Check the dimensions of the valve
mounting details, paying particular attention to the protrusions of the valve stem in order
to avoid any axial thrusts to the internal parts of the actuator or the valve when the screws
are tightened.
Place the actuator vertically on the valve stem. Carry out the coupling operations
(if necessary with the help of manual operation); make sure no mating parts are forced.
NOTICE
In case the actuator is supplied without stud bolts and nuts the following materials must be
used as a minimum:
• ISO class 8.8 for studs bolts and nuts or
• ASTM A 320 Grade L7 (or L7M) for studs bolts
• ASTM A 194 Grade 4 for nuts
!
WARNING
Never lift the valve/actuator assembly without securing slings to both the valve and
the actuator.
Table 3.
Size (DN) Max. weight (kg)
F01-2000/150 26
F01-2000/300 26
F01-2000/600 28
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