4.3.1.2. Multi-turn actuator with output drive type A: mount
Figure 16: Assembly of output drive type A
[1]
Valve stem
[2]
Output drive type A
[3]
Screws to actuator
[4]
Valve flange
[5]
Screws to output drive
Procedure
1.
If output drive type A is already mounted to the multi-turn actuator: Loosen
screws [3] and remove output drive type A [2].
2.
Apply a small quantity of grease to the valve stem [1].
3.
Place output drive type A on valve stem and turn until it is flush on the valve
flange.
4.
Turn output drive type A until alignment of the fixing holes.
5.
Fasten screws [5] between valve and output drive type A without completely
tightening them.
6.
Fit multi-turn actuator on the valve stem so that the stem nut dogs engage into
the output drive sleeve.
➥
The flanges are flush with each other if properly engaged.
7.
Adjust multi-turn actuator until alignment of the fixing holes.
8.
Fasten multi-turn actuator with screws [3].
9.
Fasten screws [3] crosswise with a torque according to table.
Table 9:
Tightening torques for screws
Tightening torque [Nm]
Threads
Strength class
A2-80
8.8
200
214
M16
392
431
M20
1,422
1,489
M30
2,481
2,594
M36
10. Turn multi-turn actuator with handwheel in direction OPEN until valve flange
and output drive type A are firmly placed together.
11. Tighten screws [5] between valve and output drive type A crosswise applying
a torque according to table.
20
SAEx 25.1 – SAEx 40.1 / SAREx 25.1 – SAREx 30.1
Assembly
ACExC 01.2
