AUMA SAEx 16.2 - Assembly Procedures; Mounting Position; Handwheel Fitting; Mounting Actuator to Valve

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 4:
Tightening torques for screws
Tightening torque ft-lb [Nm]M threadsUNC threads
Strength class
A2-808.8
7 [10]8 [11]M61/4"
18 [24]18 [25]M85/16"
35 [48]38 [51]M103/8”
60 [82]64 [87]M121/2"
148 [200]158 [214]M165/8”
289 [392]318 [431]M203/4”
4.4. Accessories for assembly
4.4.1. Stem protection tube for rising valve stem
— Option —
Figure 11: Assembly of the stem protection tube
[1] Protective cap for stem protection tube (fitted)
[1]* Protective cap made of steel (screwed)
[2] Stem protection tube
[3] V-seal
1. Seal thread with Teflon tape or thread sealing material.
2. Screw stem protection tube [2] into thread and tighten it firmly.
Information: For stem protection tubes made of two or more segments, all parts
have to be thoroughly screwed together.
17
SAEx 07.2 – SAEx 16.2 / SAREx 07.2 – SAREx 16.2
Assembly