Eltorque QT Series, User Manual

Page: 34 / 88

Page 34 of 88 User Manual QT series generation 2.5, ID 2021, rev 3.2, January 14, 2022
Keep hands away from the valve flanges
1. Apply
multi-purpose corrosion protection grease
on the valve spindle to ease
mounting and avoid corrosion.
2. Make sure that the valve and actuator are placed in the same position
(closed).
3. Lift the actuator onto the valve; align its valve adapter with the valve
spindle and lower the actuator onto the valve flange.
4. Ensure that the spindle, and valve mounting holes fit directly into the
actuator.
5. In cases where square reducers are needed, always insert two pieces with
QT250 and QT400. The QT70, QT800, and QT1000 only has room for one.
6. Check that the actuator is correctly positioned on the valve. The
actuator’s interface box should be placed in the same direction as the
piping (see Figure 22 ).
If square reducers are needed, see section 3.9.11 Additional information
adaption actuator/valve on page 32.
7.
Remove the top cover and use the handwheel to turn the actuator and
align the valve flanges' fastening holes (see section
5.1Manual
operation).
8.
Insert the fastening screws and use washers according to specifications.
For screw dimensions, see
Figure 23 and Figure 24 .
Tighten fastening screws to the specified torque. See Table 16: Screw torque
on page 83.
Caution!
Do not lift the actuator by the top cover.