4.5. Accessories for assembly
4.5.1. Stem protection tube for rising valve stem
Figure 14: 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, 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.
Figure 15: 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.
21
SA 07.2 – SA 16.2 / SAR 07.2 – SAR 16.2 Control unit: electronic (MWG)
AC 01.2 Non-Intrusive EtherNet/IP Assembly
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