Goulds Pumps ICP - IOM - Manual (Page 14)

Installation, Operating and Maintenance Instruction Model ICP
ICP 100-English page 5 Revision 00
Article No 24264412 Issue 05/2006
If the operator can´t guarantee that, according
monitoring measures must be provided.
Equally all seal casings, auxiliary systems of
the shaft sealing, as well as heating and cooling
systems must be filled carefully.
2.7.2 Marking
The marking of the pump refers to the pump
itself. For coupling and motor resp. further addi-
tions a separate Declaration of Conformity, as
well as a corresponding marking must be avail-
able.
Example of of marking at pump:
CE Ex II 2 G c T... .
The marking shows the theoretically applicable range
of temperature classes. The different temperatures,
permitted acc. to pump design, result as shown in
chapter 2.7.5. The same is valid for the drive.
For a whole unit (pump, coupling, motor) with different
temperature classes the lowest is valid.
2.7.3 Rotation Control
Carry out rotation control with speparated cou-
pling halves only! Refer to chapter 5.5 and 6.1
as well.
If danger of explosion is also existing during
installation, the rotation control must not be
carried out by short start-up of the empty pump,
to avoid undue temperature increase in case of
contact of rotating and stationary parts.
2.7.4 Operation of pump
The pump must only be started up with fully opened
suction side and slightly opened pressure side valve.
The start-up against closed non-return valve, however,
is possible. Immediately after the start-up the dis-
charge side valve must be adjusted to the operating
point.
Refer to chapter 6.2, as well.
Operation with closed valve in suction and / or
discharge pipe is not permitted!
There´s a danger, that high surface tempera-
tures are developing at the pump casing after
relatively short time, through fast heating of the
liquid inside the pump.
Fast pressure increase inside the pump can
lead to overload and, thus, the pump can burst.
In chapter 6.4.1 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 chapter 6 of these op-
erating Instructions must be taken into consideration.
On pumps with mech. seals the permitted tem-
perature 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 op-
erating range can lead to dry-run, as well.
2.7.5 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 bear-
ings.
The surface temperature occurring at pump casing
corresponds with the temperature of the pumped liq-
uid.
If the pump is heated (e. g. heating jacket), care
must be taken, that the temperature classes,
prescribed for the plant are observed.
In the area of the bearing bracket free contact from
surface to surrounding must be given.
During operation of the pump it must be se-
cured that an overabundant sedimentation of
dust is avoided (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. allowed 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 limit of
pumped liquid
T4 (135°C) 135°C
T3 (200°C) 180°C
T2 (300°C) 260°C
T1 (450°C) 260°C
The particular allowed operating temperature of
the pump is shown in the data sheet and / or
the order confirmation resp. the type plate at
the pump.
In the area of the bearings the temperature class T4 is
guaranteed, provided that the ambient temperature is
40°C and the appliance is duly operated and main-
tained.
2.7.6 Maintenance
For a secure and reliable operation it must be
secured by regular inspections, that the unit is
maintained competently and is kept in good
technical condition.