Flowserve ER 50-1 - Manual (Page 14)

4
Key
§
Flange PN 40, DN 50, DIN 57
Flange PN 40, DN 00, DIN 57
$
For the approval of the boiler standpipe with connecting flange the relevant regulations
must be considered.
%
Vent hole
&
High water (HW)
/
Electrode tip ∅ = 5 mm
(
Protection tube DN 80
)
Protection tube DN 00
=
Electrode distance ≥ 4 mm
a
Electrode distance ≥ 40 mm
b
Low water (LW)
c
Reducer DIN 66, part  K-88.9 x 3. – 4.4 x .6 W
d
Reducer DIN 66, part  K-4.3 x 3.6 – 48.3 x .9 W
Installation
– continued –