13
Examples of installation
7
Flange PN 40, DN 50, DIN EN 1092-01 (single electrode)
Flange PN 40, DN 100, DIN EN 1092-01 (combination of electrodes)
8
For the approval of the boiler standpipe with connecting flange the relevant regulations
must be considered.
9
Vent hole
∅
20 mm
0
High water HW
a
Electrode tip
b
Protection tube DN 80 (in France according to AFAQ ≥ DN 100)
c
Protection tube DN 100
d
Distance between electrode rod and protection tube ≥ 14 mm
e
Distance between electrode tip (NRG 1..-40 or NRG 1...-41) ≥ 14 mm
(creepage distances and clearances)
f
Low water (LW)
g
Reducer DIN 2616-2, K-88.9x3.2-42.4 x 2.6 W
h
Reducer DIN 2616-2, K-114.3x3.6-48.3 x 2.9 W
i
Level pot ≥ DN 80
.
Key
NRG 26-40
DN 100
45°
max.688
9
Tube e. g.. 33.7 x 3.2
9
9
120
Fig. 8
Inclined installation,
e. g. in steam boilers
7
- continued -
