Mechanical properties of the motors
3.2 Liquid cooling
1FT7 Synchronous Motors
Configuration Manual, (PFT7S) 01/2009, 6SN1197-0AD13-0BP2
55
Cooling system manufacturers
BKW Kälte-Wärme-Versorgungstechnik GmbH http://www.bkw-kuema.de
DELTATHERM Hirmer GmbH http://www.deltatherm.de
Glen Dimplex Deutschland GmbH http://www.riedel-cooling.com
Helmut Schimpke und Team Industriekühlanlagen
GmbH + Co. KG
http://www.schimpke.org
Hydac System GmbH http://www.hydac.com
Hyfra Industriekühlanlagen GmbH http://www.hyfra.de
KKT Kraus Kälte- und Klimatechnik GmbH http://www.kkt-kraus.de
Pfannenberg GmbH http://www.pfannenberg.com
Rittal GmbH & Co. KG http://www.rittal.de
Note
It goes without saying that equivalent products from other manufacturers may be used. Our
recommendations should be considered as such. We cannot accept any liability for the
quality and properties/features of third-party products.
3.2.2 Engineering the cooling circuit
Pressure
The operating pressure must be set according to the flow conditions in the supply and return
lines of the cooling circuit. The required coolant flow rate per time unit must be set according
to the technical data of the equipment and motors.
The maximum permissible pressure with respect to atmosphere in the heat sink and thus in
the cooling circuit must not exceed 0.6 MPa (6 bar) If a pump that can achieve a higher
pressure is used, suitable measures must be provided on the system side (e.g. safety valve
p ≤ 0.6 MPa, pressure control etc.) to ensure that the maximum pressure is not exceeded.
The pressure difference between the coolant in the supply and return lines should be
selected as low as possible so that pumps with a flat characteristic can be used.
An additional flushback filter should be used in the circuit in order to help prevent blockages
and corrosion. This allows any material deposits to be flushed out in operation.
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