Accessories For Assembly; Stem Protection Tube For Rising Valve Stem - AUMA SAEx 25.1 Operation Instructions Manual

Assembly

5.4 Accessories for assembly

5.4.1 Stem protection tube for rising valve stem

NOTICE
How to proceed 1. Seal all threads with hemp, Teflon tape, sealing agent or thread sealing material.
20
3. Apply a small quantity of grease to the valve or gearbox stem [3].
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 [4].
Information: We recommend applying liquid thread sealing material to the screws
to avoid contact corrosion.
6. Fasten screws [4] crosswise with a torque according to table
for screws [} 49].
Figure 20: Assembly of the stem protection tube
[1]
[2]
[3]
[1] Protective cap for stem protection tube
(fitted)
[1]** Option for sizes 30.1, 35.1, 40.1, 48.1:
Protective cap made of steel (welded)
[3] V-seal
Risk of bending or oscillation of protection tubes exceeding a length of 2
m!
Risk of damage at stem and/or protection tube.
à Secure protection tubes exceeding 2 m by an appropriate support.
To minimise the risk of electrostatic charging within a potentially explosive atmosphere
when using protective caps made of plastic, refer to
of the product [} 4].
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.
[1]*
[1]**
[1]* Option for size 25.1: Protective cap
made of steel (screwed)
[2] Stem protection tube
Prerequisites for the safe handling
Tightening torques