Materials - Siemens SINAMICS S120 Equipment Manual

8.3

Materials

The following table lists a wide variety of materials and components which may or may not
be used in a cooling circuit.
Table 8- 6 Materials and components of a cooling circuit
Material
Zinc
Brass
Copper
Common steel (e.g. St37)
Cast steel, cast iron
High-alloy steel, Group 1
(V2A)
High-alloy steel, Group 2
(V4A)
Installation made of different
materials (mixed
installation)
PVC
Hoses
Gaskets
Hose connections
Chassis Liquid Cooled Power Units
Manual, (GH7), 01/2011, 6SL3097-4AM00-0BP1
Used as
Pipes, valves and
fittings
Pipes, valves and
fittings
Pipes, valves and
fittings
Cable
Pipes, motors
Pipes, valves and
fittings
Pipes, valves and
fittings
Pipes, valves and
fittings
Pipes, valves and
fittings, hoses
Pipes, valves and
fittings
Pipe-hose transition
Application with SINAMICS S120 Liquid Cooled
Do not use zinc!
Can be used in closed circuits with inhibitor.
Can be used only in closed circuits with inhibitors in which the heat
sink and copper component are separated (e.g. connection hose
on units).
Permissible in closed circuits with inhibitors or Antifrogen N, check
for oxide formation, inspection window recommended.
Closed circuit and use of strainers and flushback filters.
Fe separator for stainless heat sink.
Can be used for drinking or municipal water with a chloride content
up to <250 ppm, suitable according to definition in Section
"Coolant definition".
Can be used for drinking or municipal water with a chloride content
up to <500 ppm, suitable according to definition in Section
"Coolant definition".
Do not use a mixed installation.
Do not use PVC!
Reduce the use of hoses to a minimum (device connection). Must
not be used as the main line for the whole system.
Recommendation: EPDM hoses with an electrical conductivity
>10 ohms, (e.g. Semperflex FKD supplied by Semperit, or
9
DEMITTEL of PE/EPD supplied by Telle)
Use of Viton, AFM34, EPDM is recommended.
Secure with clips conforming to DIN2817, available, e.g. from
Telle.
Cooling circuit and coolant properties
8.3 Materials
243