Grundfos MAGNA3 Instructions Manual page 18

Liquid temperature
Continuously: -10 to +110 °C.
Stainless-steel pumps in domestic hot-water
systems:
In domestic hot-water systems, we
recommend that you keep the liquid
temperature below 65 °C to eliminate the
risk of lime precipitation.
Maximum system pressure
The actual inlet pressure and the
pump pressure against a closed valve
must be lower than the maximum
permissible system pressure.
The maximum permissible system pressure
is stated on the pump nameplate:
PN 6: 6 bar / 0.6 MPa
PN 10: 10 bar / 1.0 MPa
PN 16: 16 bar / 1.6 MPa.
Disposal
This product has been designed with focus
on the disposal and recycling of materials.
The following average disposal values apply
to all variants of pumps:
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