11
Examples of installation
6
Flange PN 40, DN 50, DIN EN 1092-01 (single electrode)
Flange PN 40, DN 100, DIN EN 1092-01 (combination of electrodes)
7
For the approval of the boiler standpipe with connecting flange the relevant regulations must be
considered.
8
Vent hole
∅
20 mm
9
High water (HW)
0
Electrode tip
a
Protection tube DN 80 (in France according to AFAQ ≥ DN 100)
b
Protection tube DN 100
c
Distance between electrode rod and protection tube ≥ 14 mm
d
Distance between electrode tip (NRG 1..-50 or NRG 1...-51) ≥ 14 mm
(creepage distances and clearances)
e
Low water LW
f
Reducer DIN 2616-2, K-88.9 x 3.2-42.4 x 2.6 W
f
Reducer DIN 2616-2, K-114.3 x 3.6-48.3 x 2.9 W
h
Level pot ≥ DN 80
Key
- continued -
DN 100
45°
max.688
8
Tube, e. g. 33.7 x 3.2
8
8
120
Fig. 8
Inclined installation
e. g. in steam boilers
6
NRG 26-21
- continued -
