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3.
Apply a small quantity of grease to the valve or gearbox stem [3].
4.
Fit multi-turn actuator [1].
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 7:
Tightening torques for screws
Tightening torque ft-lb [Nm]
M threads
UNC threads
Strength class
A2-80
8.8
148 [200]
158 [214]
M16
5/8”
289 [392]
318 [431]
M20
3/4”
1,049 [1,422]
1,098 [1,489]
M30
1”
1,830 [2,481]
1,913 [2,594]
M36
1 1/4”
4.4.
Accessories for assembly
4.4.1.
Stem protection tube for rising valve stem
Figure 16: Assembly of the stem protection tube
[1]
Protective cap for stem protection tube (fitted)
[1]*
Option for size 25.1: Protective cap made of steel (screwed)
[1]**
Option from size 30.1: Protective cap made of steel (welded)
[2]
Stem protection tube
[3]
V-seal
1.
Seal all threads with hemp, Teflon tape, or thread sealing material.
19
SAEx 25.1 – SAEx 35.1 / SAREx 25.1 – SAREx 30.1
NORM (without controls)
Assembly