KSB CTN - Monitoring Equipment; Operating Limits

2 Safety
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CTN / CTN-H
Table4: Temperature limits
Temperature class to EN 13463-1 or ISO
80079-36
Maximum permissible
fluid temperature
T1 300°C maximum
2)
T2 280°C
T3 185°C
T4 120°C
T5 85°C
T6 Only after consultation
with the manufacturer
Temperature class T5 Based on an ambient temperature of 40°C and proper maintenance and operation,
compliance with temperature class T5 is warranted in the area of the rolling element
bearings. If the ambient temperature exceeds 40°C, contact the manufacturer.
Temperature class T6 A special design is required to comply with the requirements of temperature class T6
in the bearing area.
Misuse, malfunctions or non-compliance with the instructions may result in
substantially higher temperatures.
If the pump is to be operated at a higher temperature, if there is no data sheet or if
the pump is part of a pool of pumps, contact KSB for the maximum permissible
operating temperature.
2.9.3 Monitoring equipment
The pump (set) must only be operated within the limits specified in the data sheet
and on the name plate.
If the system operator cannot warrant compliance with these operating limits,
appropriate monitoring devices must be used.
Check whether monitoring equipment is required to ensure that the pump set
functions properly.
Contact KSB for further information about monitoring equipment.
2.9.4 Operating limits
The minimum flows indicated in (ðSection6.2.3.1,Page35) refer to water and
water-like fluids handled. Longer operating periods with these fluids and at the flow
rates indicated will not cause an additional increase in the temperatures at the pump
surface. However, if the physical properties of the fluids handled are different from
water, it is essential to check whether an additional heat build-up may occur and if
the minimum flow rate must therefore be increased. The calculation formula in
(ðSection6.2.3.1,Page35) can be used to check whether additional heat build-up
may lead to a dangerous temperature increase at the pump surface.
2) Depending on the material variant