GESTRA NRG 211-1, Оригинальная инструкция по установке

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Attention
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Handle level electrode with care. Do not let if fall down.
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Do not subject electrode rod to physical shocks..
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Use only the supplied joint ring!
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Use high-temperature lubricant (e. g. Dag 156) for the expansion bolt !
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Do not lag electrode body above the hexagonal section!
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If the the level electrode is removed for inspection work make sure it is stored in a
vertical position.
Installation
Welding standpipe
Note
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To connect the equipment to pipes (tee-pieces) with DN ≤ 100 use full-penetration butt
welding 22 DIN 2559.
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For larger pipes the welding standpipe can be introduced through a lateral penetration
and then be welded in place.
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The joint ring has serrated faces and silver coated rings at both ends which must not
be removed.
NRG 211-1
1. Check seating surfaces. Clean end flange facings.
2. Insert joint ring into the groove of the welding standpipe.
3. When putting the level electrode in place make sure that the connector at the terminal box points
downwards.
4. Tighten expansion bolt
0
in diagonally opposite pairs with a torque of 70 Nm .
5. Tighten expansion bolt
0
in diagonally opposite pairs with a torque of130 Nm .
6. Remove the fixing screw
2
of the transit protection
1
.
Weld standpipe inclined upwards by at least 5° - 10° onto vertical pipe to ensure that the standpipe
can completely empty if the level falls. Make sure that the marking TOP is on top. Fig. 3.
Danger
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During the welding process or post weld treatment of the standpipe the temperature
of the flange seating surface must not exceed 350 °C (danger of scalding).
Tools
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Open-end spanner A. F. 27, DIN 3110, ISO 3318
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