ITT Goulds Pumps ICB, Инструкция по установке, эксплуатации и обслуживанию

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In Limits of Operation, Flow min. / max ., the minimum flow is stated. Longer operating phases with these
flows and the named liquids don´t cause additional increase of surface temperature at the pump.
Furthermore the references in Start-up, Operation, Shut down of these operating Instructions must be
taken into consideration.
On pumps with mech. seals the permitted temperature limits can be exceeded due to dry-run. Dry run
not only can occur on insufficiently filled seal casing, but also because of too much gas in the medium.
Operation of the pump out of the permitted operating range can lead to dry-run, as well.
Temperature limits
Under normal operating conditions the highest temperatures must be expected at the surface of the
pump casing and in the area of the bearings.
The surface temperature occurring at pump casing corresponds with the temperature of the pumped liq-
uid.
In the area of lantern and motor free contact of surface to environment must be given for proper cooling.
During operation of the pump it must be secured that an overabundant sedimentation of dust is avoid-
ed (regular cleaning), to prevent heating of pump surface over the permitted temperature.
The operator of the plant must secure that the defined operating temperature is observed. The max. al-
lowed temperature of the pumped liquid at suction depends on the particular temperature class.
The following table shows the theoretical temperature
limits of the pumped liquid in consideration of the temperature classes acc. to EN 13463-1.
Temperature class acc.
EN 13463-1
Temperature class acc.
EN 13463-1
T4 (135°C) 135°C
T3 (200°C) 140°C
T2 (300°C) 140°C
T1 (450°C) 140°C
The particular allowed operating temperature of the pump is shown in the data sheet and / or the or-
der confirmation resp. the type plate at the pump.
Maintenance
For a secure and reliable operation it must be secured by regular inspections, that the unit is main-
tained competently and is kept in good technical condition.
Example: Function of bearings. Operation and application conditions are essentially responsible for their
achievable life cycle.
By regular control of the lubricant and the running sound the danger of occurring over temperatures by
bearings running hot or defect bearing seals is avoided. Refer to Monitoring and
7.1.4 Cleaning of pump
on page 33 .
The function of the shaft sealing must be secured by regular control.
If auxiliary systems (e.g. external flushing, cooling, heating) are installed, it must be checked, if monitor-
ing devices are necessary to secure the function.
Electrical switches and control device, instrumentation and accessories
Electric switches and control device, Instrumentation and accessories
2.1 Explosion Protection
ICB Installation, Operation and Maintenance Instruction 11