4.
Place multi-turn actuator [1] and 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 10:
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
4.4.
Accessories for assembly
4.4.1.
Stem protection tube for rising valve stem
Figure 19: 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
Procedure
1.
Seal all threads with hemp, Teflon tape, or thread sealing material.
22
SAEx 25.1 – SAEx 40.1 / SAREx 25.1 – SAREx 30.1
Assembly
ACExC 01.2