6.
Mounting to valve/gearbox
.
Prior to mounting the multi-turn actuator must be checked
for damage. Damaged parts must be replaced by original
spare parts.
.
After mounting to valve/gearbox, touch up any possible
damage to paint finish.
The multi-turn actuator leaves the factory in position CLOSED (limit switch
CLOSED tripped).
.
Check if mounting flange fits the valve/gearbox.
Spigot at flanges should be loose fit!
The output drive types B1, B2, B3, or B4 (figure 4) are delivered with bore
and keyway (usually according to ISO 5210).
For output drive type A (figure 5), the internal thread of the stem nut must
match the thread of the valve stem. If not ordered explicitly with thread, the
stem nut is unbored or with pilot bore when delivered. For finish machining
of stem nut, refer to next page.
.
Check whether bore and keyway match the input shaft of valve/gearbox.
.
Thoroughly degrease mounting faces at multi-turn actuator and
valve/gearbox.
.
Apply a small quantity of grease to input shaft of valve/gearbox.
.
Place actuator on valve/gearbox and fasten. Fasten bolts
(quality min. 8.8, refer to table 1) evenly crosswise.
Multi-turn actuators SA 07.1 – SA 30.1/SAR 07.1 – SAR 30.1
Operation instructions
with actuator controls AUMA MATIC AM 01.1/AM 02.1
11
Figure 4
Output drive type B1/B2
Plug sleeve
Output drive type B3/B4
Bore with keyway
Strength class 8.8
T
A
(Nm)
M 8
25
M10
50
M12
87
M16
220
M20
420
Table 1: Fastening torque for bolts
