Pressure
Flow
2.6 Connecting the cooling
water
Cooling water specifications
Inlet temperature 10 - 30 °C
Inlet pressure 2 to 6 bar absolute
i.e.1 to 5 bar over atmoshere
Cooling water requirement See Fig. 18
Appearance Colorless, clear,
free of oils and greases
Sediments < 250 mg/l
Particle size < 150 µm
Electrical conductivity < 500 µS/cm
pH value 7 to 8.5
Overall hardness (total alkaline earths)
max. 20 ° German hardness scale
(= 3.57 mmol/l)
Further information on request.
Connect the cooling water to the connectors; see Fig.
19.
Caution
Make sure that you do not mix up the inlet
and the outlet connection. If it is mixed up
the water valve will not work correctly.
Turn off the cooling water supply when the pump is
switched off in order to avoid condensate formation in
the pump.
If you do not close the cooling water it may take longer
to achieve ultimate pressure after start up of the system.
An internal bypass in the cooling water distributor allows
operating the MAG in series with other cooling water
consumers.