Materials - Siemens SINAMICS S120 Equipment Manual

Cooling circuit, coolant properties and protection against condensation

9.3 Materials

9.3 Materials
The following table lists a wide variety of materials and components which are permissible or
not permissible for use in a cooling circuit.
Table 9- 5 Materials and components of a cooling circuit
Material
Zinc
Brass
Nickel
Copper
Common steel (e.g. St37)
Cast steel, cast iron
High-alloy steel (V4A)
W1.4404, W4435
(AISI316L), W1.4571
(AISI316Ti)
High-alloy steel
W1.4539 (AISI904L)
CuNi10Fe1.6
Installation made of different
materials (mixed installation)
Plastic
- PE (polyethylene)
- PVC
- NORYL PPE 10% filling or
Ryton PPS 65% filling.
PE (polyethylene)
PVC
Hoses
264
Used as
Pipes, valves and Do not use zinc!
fittings
Pipes, valves and Can be used in closed circuits with antifreeze.
fittings
Nickel solder in the Can be used in common cooling circuits.
heat exchanger
Pipes, valves and Can be used in common cooling circuits with antifreeze in which
fittings the heat sink and copper component are galvanically isolated (e.g.
hose connected to the devices). Copper should not be used or be
restricted to the absolutely essential minimum.
Pipes Not permissible!
Pipes, motors Not permissible!
Pipes, valves and Can be used for drinking or tap water with a chloride content up to
fittings, heat exchang- < 250 mg/l, suitable according to definition in Chapter Coolant
ers properties (Page 260).
Pipe, valves and fit- Can be used for drinking or tap water with a chloride content up to
tings, heat exchanger < 500 mg/l, suitable according to definition in Chapter Coolant
properties (Page 260).
Preferred material for devices with heat exchanger manufactured
out of a copper-nickel alloy.
Pipe, valves and fit- Do not use a mixed installation.
tings, heat exchanger
Pipe Do not use PE (polyethylene) for water pipes because they exces-
sively expand.
Pipe, valve and fit- Do not use PVC.
tings, hoses
Connection manifold, Can be used as connection manifold or molded part in the cooling
molded part circuit.
Pipes Do not use PE (polyethylene) for water pipes because they are too
long.
Pipes, valves and Do not use PVC!
fittings, hoses
Reduce the use of hoses to a minimum (device connection). Must
not be used as the main pipe for the whole system.
The hose used must have the highest possible resistance!
Recommendation: NBR hose from HANSA Flex TE 308 B (3TE) or
Conti Goldschlange EPDM hoses with an electrical resistance
1 MΩ/m, (e.g. Semperflex FKD supplied by Semperit or DEMITTEL
of PE/EPD supplied by the Telle company)
Used with SINAMICS S120 water cooled
Water-cooled chassis power units for common cooling circuits
Manual, 08/2017, 6SL3097-4AM10-0BP0