6.
Fit actuator. If required, slightly turn actuator until splines of coupling engage.
Figure 10: Mounting the actuator onto valve
Information
Ensure complete contact of flanges.
7.
If flange bores do not match thread:
7.1 Slightly rotate handwheel until bores line up.
7.2 If required, shift actuator by one tooth on the coupling.
8.
Fasten actuator with screws.
Information: We recommend applying liquid thread sealing material to the
screws to avoid contact corrosion.
9.
Fasten screws crosswise to a torque according to table.
Table 4:
Tightening torques for screws
Tightening torque [Nm]
Threads
Strength class A2-80/A4–80
10
M6
24
M8
48
M10
82
M12
200
M16
392
M20
15
PF-Q80 – PF-Q600
Assembly
