7
Optional extras
The following items are available as optional extra:
Item
no.
Designation
11
Sealing plug
12
Hand-vent valve with socket spanner
(socket spanner not shown)
The vent hole in the cover for the hand-
vent valve can also be used for
connecting a balance line.
13
Cover with integrated reflexion water level
sightglass for checking the performance
Item
no.
Designation
14
Gasket
15
Float-lifting lever with socket spanner
16
Adaptor with control unit SIMPLEX
17
Cover with connections for electrodes
NRG 16-19 or NRG 16-27
In equipment with control unit SIMPLEX the
hand-vent valve is included as standard.
