Danfoss MPE 70 Operating Manual page 12

Operating guide | MPE 70
12
5.3 Materials
All critical parts of the MPE 70 are made of
super-duplex 1.4410/UN S32750/1.4462/
UN S32205/S31803 or the like.
Non-critical parts that are not in contact
with sea water are made of AISI 316.
The shaft to the electrical motor is sealed by
a standardised mechanical seal.
5.4 Temperature and corrosion
The chart below illustrates the corrosive
resistance of different types of stainless steel
related to NaCl concentration and
temperature.
Depending on the NaCl concentration, the
fluid temperature must be between: +2 °C to
+50 °C (+35.6 °F to 122 °F).
In order to minimise the risk of crevice
corrosion, always flush the MPE 70
according to the specified start/stop
procedure.
80 º
C
70
60
50
316L
40
30
20
100
160
180R9426 | AQ367027814446en-000801 | IOM MPE 70 | 08.2022
5.5 Dimensions and weights
For dimensions and weights please refer to
the MPE 70 data sheet. See appendix 11.1.
5.6 Electrical motor data
See data sheet in appendix 11.1 and
Operating and Maintenance
instructions, electric motor in
appendix 11.5.
Duplex
Super Duplex
1000 10 000
1600 16000
CI -
100 000
ppm
NaCI
160000
ppm