4.3
Multi-turn actuator: mount to valve/gearbox
Danger of corrosion due to damage to paint finish and condensation!
→
Touch up damage to paint finish after work on the device.
→
After mounting, connect the device immediately to electrical mains to ensure
that heater minimises condensation.
4.3.1
Output drive types B, B1 – B4 and E
Application
●
For rotating, non-rising valve stem
●
Not capable of withstanding thrust
Design
Output drive bore with keyway:
●
Types B1 – B4 with bore according to ISO 5210
●
Types B and E with bore according to DIN 3210
●
Later change from B1 to B3, B4, or E is possible.
Figure 6:
Output drives
[1]
Output drive types B1/B2 and B
[2]
Hollow shaft with keyway
[3]
Output drive types B3/B4 and E
[4]
Output drive sleeve/output drive plug sleve with bore and keyway
Information
Spigot at flanges should be loose fit.
4.3.1.1
Multi-turn actuator (with output drive types B1 – B4 or E): mount to valve/gearbox
1.
Check if mounting flanges fit together.
2.
Check whether bore and keyway match the input shaft.
3.
Apply a small quantity of grease to the input shaft.
4.
Place multi-turn actuator.
Information: Ensure that the spigot fits uniformly in the recess and that the
mounting faces are in complete contact.
5.
Fasten multi-turn actuator with screws according to table.
Information: We recommend applying liquid thread sealing material to the
screws to avoid contact corrosion.
6.
Fasten screws crosswise to a torque according to table.
Table 1:
Tightening torques for screws
Tightening torque T
A
[Nm]
Screws
Strength class 8.8
Threads
214
M16
431
M20
1,489
M30
2,594
M36
10
SA 25.1 – SA 48.1/SAR 25.1 – SAR 30.1
Assembly