Siemens SIMOTICS T-1FW3 User Manual

Mechanical properties
3.1 Cooling
1FW3 complete torque motors
Configuration Manual, 08/2020, A5E46027705B AA
39
Materials used in the motor cooling circuit
The materials used in the cooling circuit must be coordinated with the materials in the motor.
Materials used in the motor (cooling jacket material): E355 AR (1.0580), DD11 (1.0332)
Materials and components in the cooling circuit
Note
Minimizing electrochemical processes in the cooling circuit
The electrochemical processes that take place in a cool
ing system must be minimized by
choosing the righ
t materials.
Avoid combinations of different materials, such as copper, brass, iron, or halogenated plastic
(PVC hoses and seals).
The following table lists a wide variety of materials and components that may or must not be
used in a cooling circuit.
Table 3- 2 Materials and components of a cooling circuit
Material
Used as
Description
Zinc Pipes, valves and
fittings
Use is not permitted.
Brass
Pipes, valves and
fittings
Can be used in closed circuits with inhibitor.
Copper Pipes, valves and
fittings
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).
Common steel (e.g. St37)
Pipes
Permissible in closed circuits and semi-open circuits with inhibitors
or Antifrogen N, check for oxide formation, inspection window rec-
ommended.
Cast steel, cast iron
Pipes, motors
Closed circuit and use of strainers and flushback filters. Fe separa-
tor for stainless heat sink.
High-alloy steel, Group 1 (V2A)
Pipes, valves and
fittings
Can be used for drinking or tap water with a chloride content up to <
250 ppm, suitable according to definition in Chapter "Cooling water."
High-alloy steel, Group 2 (V4A)
Pipes, valves and
fittings
Can be used for drinking or tap water with a chloride content up to <
500 ppm, suitable according to definition in Chapter "Cooling water."
ABS (AcrylnitrileButadieneSty-
rene)
Pipes, valves and
fittings
Suitable according to definition in Chapter "Cooling water." Suitable
for mixing with inhibitor and/or biocide as well as Antifrogen N.
Installation comprising different
materials (mixed installation)
Pipes, valves and
fittings
Use is not permitted.
PVC Pipes, valves,
fittings and hoses
Use is not permitted.
Hoses
Reduce the use of hoses to a minimum (device connection). Must
not be used as the main pipe for the whole system. Recommenda-
tion: EPDM hoses with an electrical resistance > 10
9
Ω (e.g. Sem-
perflex FKD supplied by Semperit or DEMITTEL; from PE/EPD,
supplied by Telle).

Siemens SIMOTICS T-1FW3 Specifications

General

Brand	Siemens
Model	SIMOTICS T-1FW3
Category	Engine
Language	English