Flowserve NRG 16-51 - Manual (Page 15)

5
Important Notes
Safety note
Danger
When loosening the electrode steam or hot water might escape!
This presents the risk of severe scalding all over the body!
It is therefore essential not to dismantle the electrode unless the boiler pressure is
verified to be 0 bar.
The electrode becomes hot during operation.
Risk of severe burns to hands and arms.
Before carrying out installation and maintenance work make sure that the steam trap
is cold.
High water level alarms are safety devices and must only be installed, wired and commissioned by
qualified and competent staff.
Retrofitting and maintenance work must only be performed by qualified staff who – through adequate
training – have achieved a recognised level of competence.
Attention
The name plate specifies the technical features of the equipment. Do not commission or
operate any item of equipment that does not bear its specific name plate.
Scope of supply
NRG 16-51
 Level electrode NRG 6-50, PN 40
 Joint ring 7 x 3, Form D,
DIN 7603, .430, bright annealed
 Installation manual
NRG 17-51
 Level electrode NRG 7-50, PN 63
 Joint ring 7 x 3, Form D,
DIN 7603, .430, bright annealed
 Installation manual
NRG 19-51
 Level electrode NRG 9-50, PN 60
 Joint ring 7 x 3, Form D,
DIN 7603, .430, bright annealed
 Installation manual
Note
For outdoor installations please use level electrode NRG ...-5 F. Level electrodes with
this suffix (F) feature a terminal box made from aluminium.