5.4. Accessories for assembly
5.4.1. Stem protection tube for rising valve stem
Figure 20: Assembly of the stem protection tube
[1] Protective cap for stem protection tube (fitted)
[1]* Option: Protective cap made of steel (screwed)
[2] Stem protection tube
[3] V-seal
Procedure
1. Seal all threads with hemp, Teflon tape, sealing agent or thread sealing mater-
ial.
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.
Figure 21: Protection tube made of segments with threaded sleeves (>900 mm)
[2] Segment of stem protection tube
[3] V-seal
[4] Threaded sleeve
3. Push down the sealing ring [3] onto the housing.
Information: For mounting segments, push down seals of segments down to
the sleeve (connecting piece).
4. Check whether protective cap [1] for stem protection tube is available, in perfect
condition and tightly placed on or screwed to the tube.
Risk of bending or oscillation of protection tubes exceeding a length of 2 m!
Risk of damage at stem and/or protection tube.
→
Secure protection tubes exceeding 2 m by an appropriate support.
24
SAEx 07.2 – SAEx 16.2/SAREx 07.2 – SAREx 16.2 Control unit - electromechanical
Assembly ACExC 01.2 Intrusive Modbus RTU
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