All rights reserved. The contents provided herein must neither be distributed, copied, reproduced,
edited or processed for any other purpose, nor otherwise transmitted, published or made available to a
third party without the manufacturer's express written consent.
Subject to technical modification without prior notice.
1.6Key to safety symbols/markings.......................................................................................................................7
2.2Intended use .....................................................................................................................................................8
2.3Personnel qualification and training...............................................................................................................9
2.4Consequences and risks caused by non-compliance with this manual .........................................................9
3.4Return to supplier...........................................................................................................................................14
4.6Configuration and function...........................................................................................................................19
4.8Scope of supply...............................................................................................................................................20
4.9Dimensions and weights ................................................................................................................................20
5Installation at Site................................................................................................................................ 21
5.1Checks to be carried out prior to installation...............................................................................................21
5.2Installing the pump set ..................................................................................................................................21
5.6Checking the direction of rotation................................................................................................................26
6.1.1Prerequisites for commissioning/start-up .........................................................................................28
6.1.2Filling in the lubricant .......................................................................................................................28
6.1.3Shaft seal ............................................................................................................................................29
6.1.4Priming and venting the pump.........................................................................................................30
6.2.2Frequency of starts.............................................................................................................................33
6.3.1Measures to be taken for shutdown ................................................................................................35
6.4Returning to service .......................................................................................................................................35
7.4Dismantling the pump set..............................................................................................................................42
7.4.2Preparing the pump set.....................................................................................................................43
7.4.3Dismantling the motor ......................................................................................................................43
7.4.4Removing the impeller ......................................................................................................................43
7.4.5Removing mechanical seal MG1-G6..................................................................................................43
7.4.6Removing the shaft and rolling element bearings ..........................................................................44
7.5Reassembling the pump set...........................................................................................................................44
7.5.2Installing the shaft and rolling element bearing.............................................................................45
7.5.3Fitting the mechanical seal................................................................................................................45
7.5.4Fitting the impeller............................................................................................................................46
7.5.5Mounting the motor..........................................................................................................................47
7.6.1Tightening torques for the pump.....................................................................................................47
7.7Spare parts stock.............................................................................................................................................47
9.1.4List of components.............................................................................................................................57
10EU Declaration of Conformity............................................................................................................. 60
11Certificate of Decontamination........................................................................................................... 61
Index ..................................................................................................................................................... 62
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Glossary
Glossary
Certificate of decontamination
A certificate of decontamination is enclosed by the
customer when returning the product to the
manufacturer to certify that the product has been
properly drained to eliminate any environmental
and health hazards arising from components in
contact with the fluid handled.
Close-coupled design
Motor directly fitted to the pump via a flange or a
drive lantern
Oil reservoir
The oil reservoir prevents the mechanical seal from
running dry, for example in the event of a short
period of negative pressure on the suction side.
Pool of pumps
Customers/operators’ pumps which are purchased
and stored regardless of their later use.
Pump
Machine without drive, additional components or
accessories
Pump set
Complete pump set consisting of pump, drive,
additional components and accessories
Suction lift line/suction head line
The pipeline which is connected to the suction
nozzle
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1 General
1 General
1.1 Principles
This operating manual is supplied as an integral part of the type series and variants
indicated on the front cover.
The manual describes the proper and safe use of this equipment in all phases of
operation.
The name plate indicates the type series and size, the main operating data, the order
number and the order item number. The order number and order item number
clearly identify the pump set and serve as identification for all further business
processes.
In the event of damage, immediately contact your nearest KSB Service centre to
maintain the right to claim under warranty.
1.2 Installation of partly completed machinery
To install partly completed machinery supplied by KSB refer to the sub-sections under
Servicing/Maintenance.
1.3 Target group
This operating manual is aimed at the target group of trained and qualified specialist
technical personnel. (ðSection2.3,Page9)
1.4 Other applicable documents
Table1: Overview of other applicable documents
DocumentContents
Data sheetDescription of the technical data of the pump (set)
General arrangement drawing/
outline drawing
Description of mating and installation dimensions
for the pump (set), weights
Drawing of auxiliary connections Description of auxiliary connections
Hydraulic characteristic curveCharacteristic curves showing head, NPSH
required, efficiency and power input
General assembly drawing
1)
Sectional drawing of the pump
Sub-supplier product literature1)Operating manuals and other product literature
describing accessories and integrated machinery
components
Spare parts lists
Piping layout
List of components
Drawing for assembly
1)
1)
1)
1)
Description of spare parts
Description of auxiliary piping
Description of all pump components
Sectional drawing of the installed shaft seal
For accessories and/or integrated machinery components observe the relevant
manufacturer's product literature.
1.5 Symbols
Table2: Symbols used in this manual
SymbolDescription
1)If agreed upon in scope of supply
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✓Conditions which need to be fulfilled before proceeding with the
step-by-step instructions
⊳Safety instructions
⇨
Result of an action
⇨Cross-references
Page 7
1 General
!
DANGER
!
WARNING
CAUTION
SymbolDescription
1.
Step-by-step instructions
2.
Note
Recommendations and important information on how to handle
the product
1.6 Key to safety symbols/markings
Table3: Definition of safety symbols/markings
SymbolDescription
DANGER
This signal word indicates a high-risk hazard which, if not avoided,
will result in death or serious injury.
WARNING
This signal word indicates a medium-risk hazard which, if not
avoided, could result in death or serious injury.
CAUTION
This signal word indicates a hazard which, if not avoided, could
result in damage to the machine and its functions.
Explosion protection
This symbol identifies information about avoiding explosions in
potentially explosive atmospheres in accordance with EU Directive
2014/34/EU (ATEX).
General hazard
In conjunction with one of the signal words this symbol indicates a
hazard which will or could result in death or serious injury.
Electrical hazard
In conjunction with one of the signal words this symbol indicates a
hazard involving electrical voltage and identifies information about
protection against electrical voltage.
Machine damage
In conjunction with the signal word CAUTION this symbol indicates
a hazard for the machine and its functions.
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2 Safety
!
DANGER
2 Safety
All the information contained in this section refers to hazardous situations.
In addition to the present general safety information the action-related safety
information given in the other sections must be observed.
2.1 General
This operating manual contains general installation, operating and maintenance
instructions that must be observed to ensure safe operation of the system and
prevent personal injury and damage to property.
The safety information in all sections of this manual must be complied with.
The operating manual must be read and understood by the responsible specialist
personnel/operators prior to installation and commissioning.
The contents of this operating manual must be available to the specialist personnel
at the site at all times.
Information attached directly to the product must always be complied with and kept
in a perfectly legible condition at all times. This applies to, for example:
▪ Arrow indicating the direction of rotation
▪ Markings for connections
▪ Name plate
The operator is responsible for ensuring compliance with all local regulations not
taken into account in this operating manual.
2.2 Intended use
▪ The pump (set) must only be operated in the fields of application and within the
use limits specified in the other applicable documents. (ðSection1.4,Page6)
▪ Only operate pumps/pump sets which are in perfect technical condition.
▪ Do not operate the pump (set) in partially assembled condition.
▪ Only use the pump to handle the fluids described in the data sheet or product
literature of the pump model or variant.
▪ Never operate the pump without the fluid to be handled.
▪ Observe the minimum flow rates indicated in the data sheet or product literature
(to prevent overheating, bearing damage, etc).
▪ Observe the minimum flow rate and maximum flow rate indicated in the data
sheet or product literature (to prevent overheating, mechanical seal damage,
cavitation damage, bearing damage, etc).
▪ Do not throttle the flow rate on the suction side of the pump (to prevent
cavitation damage).
▪ Consult the manufacturer about any use or mode of operation not described in
the data sheet or product literature.
▪ Only use the respective impeller types in combination with the fluids described
below.
Closed multi-channel impeller
(impeller type K)
Suitable for the following fluids:
Contaminated, solids-laden fluids
not containing stringy material
and containing no or very little
entrapped gas
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2 Safety
Open multi-vane impeller
(impeller type O)
Free-flow impeller
(impeller typeF)
Suitable for the following fluids:
uncontaminated or slightly
contaminated fluids with little
entrapped gas as well as fluids
liable to form deposits and
bunch
Suitable for the following fluids:
fluids containing coarse solids
and stringy material as well as
fluids with entrapped gas and
entrapped air
2.3 Personnel qualification and training
All personnel involved must be fully qualified to transport, install, operate, maintain
and inspect the machinery this manual refers to.
The responsibilities, competence and supervision of all personnel involved in
transport, installation, operation, maintenance and inspection must be clearly
defined by the operator.
Deficits in knowledge must be rectified by means of training and instruction
provided by sufficiently trained specialist personnel. If required, the operator can
commission the manufacturer/supplier to train the personnel.
Training on the pump (set) must always be supervised by technical specialist
personnel.
2.4 Consequences and risks caused by non-compliance with this manual
▪ Non-compliance with these operating instructions will lead to forfeiture of
warranty cover and of any and all rights to claims for damages.
▪ Non-compliance can, for example, have the following consequences:
– Hazards to persons due to electrical, thermal, mechanical and chemical
effects and explosions
– Failure of important product functions
– Failure of prescribed maintenance and servicing practices
– Hazard to the environment due to leakage of hazardous substances
2.5 Safety awareness
In addition to the safety information contained in this manual and the intended use,
the following safety regulations shall be complied with:
▪ Accident prevention, health regulations and safety regulations
▪ Explosion protection regulations
▪ Safety regulations for handling hazardous substances
▪ Applicable standards, directives and laws
2.6 Safety information for the operator/user
▪ Fit protective equipment (e.g. contact guards) supplied by the operator for hot,
cold or moving parts, and check that the equipment functions properly.
▪ Do not remove any protective equipment (e.g. contact guards) during operation.
▪ Provide the personnel with protective equipment and make sure it is used.
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2 Safety
!
DANGER
▪ Contain leakages (e.g. at the shaft seal) of hazardous fluids handled (e.g.
explosive, toxic, hot) so as to avoid any danger to persons and the environment.
Adhere to all relevant laws.
▪ Eliminate all electrical hazards. (In this respect refer to the applicable national
safety regulations and/or regulations issued by the local energy supply
companies.)
▪ If shutting down the pump does not increase potential risk, fit an emergency-
stop control device in the immediate vicinity of the pump (set) during pump set
installation.
2.7 Safety information for maintenance, inspection and installation
▪ Modifications or alterations of the pump (set) are only permitted with the
manufacturer's prior consent.
▪ Use only original spare parts or parts/components authorised by the
manufacturer. The use of other parts/components can invalidate any liability of
the manufacturer for resulting damage.
▪ The operator ensures that maintenance, inspection and installation is performed
by authorised, qualified specialist personnel who are thoroughly familiar with
the manual.
▪ Only carry out work on the pump (set) during standstill of the pump.
▪ Only perform work on the pump set when it has been disconnected from the
power supply (de-energised).
▪ The pump (set) must have cooled down to ambient temperature.
▪ Pump pressure must have been released and the pump must have been drained.
▪ When taking the pump set out of service always adhere to the procedure
described in the manual. (ðSection6.3,Page35)
▪ Decontaminate pumps which handle fluids posing a health hazard.
(ðSection7.3,Page42)
▪ As soon as the work has been completed, re-install and re-activate any safety-
relevant devices and protective devices. Before returning the product to service,
observe all instructions on commissioning. (ðSection6.1,Page28)
2.8 Unauthorised modes of operation
Never operate the pump (set) outside the limits stated in the data sheet and in this
manual.
The warranty relating to the operating reliability and safety of the supplied pump
(set) is only valid if the equipment is used in accordance with its intended use.
2.9 Explosion protection
Always observe the information on explosion protection given in this section when
operating the product in potentially explosive atmospheres.
Only pumps/pump sets marked as explosion-proof and identified as such in the data
sheet may be used in potentially explosive atmospheres.
Special conditions apply to the operation of explosion-proof pump sets to EU
Directive 2014/34/EU (ATEX).
Especially adhere to the sections in this manual marked with the symbol opposite and
the following sections, (ðSection2.9.1,Page10) to (ðSection2.9.4,Page12)
The explosion-proof status of the pump set is only assured if the pump set is used in
accordance with its intended use.
Never operate the pump set outside the limits stated in the data sheet and on the
name plate.
Prevent impermissible modes of operation at all times.
2.9.1 Marking
Pump The marking on the pump refers to the pump part only.
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2 Safety
Example of such marking:
II 2 G c TX (EN 13463-1) or II 2G Ex h IIC T5-T1 Gb (ISO 80079-36)
The pump complies with the requirements of type of protection constructional safety
"c" to ISO80079-37.
Refer to the data sheet for the applicable temperature class.
Motor The motor has its own marking. The marking is maintained on the condition that the
temperatures the pump causes to develop at the motor flange and motor shaft are
permitted by the motor manufacturer.
The motors used by KSB on pumps with ATEX certification meet this condition.
2.9.2 Temperature limits
In normal pump operation, the highest temperatures are to be expected in the area
of the rolling element bearings. The surface temperature at the pump casing
corresponds to the temperature of the fluid handled.
If the pump is heated, the operator of the system is responsible for observing the
specified temperature class.
The surfaces in the bearing bracket area must be freely exposed to the atmosphere.
The table below lists the temperature classes and the resulting theoretical
temperature limits of the fluid handled.
The temperature class specifies the maximum permissible temperature at the surface
of the pump set during operation. For the permissible operating temperature of the
pump in question refer to the data sheet.
Table4: Temperature limits
Temperature class to EN 13463-1 or ISO
80079-36
T1100°C
T2100°C
T3100°C
Maximum permissible
fluid temperature
2)
2)
2)
T4100°C
T5Only after consultation
with the manufacturer
Temperature class T4 Based on an ambient temperature of 40°C and proper maintenance and operation,
compliance with temperature class T4 is warranted in the area of the rolling element
bearings. If the ambient temperature exceeds 40°C, contact the manufacturer.
Temperature class T5 A special design is required for compliance with temperature class T5 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)Due to the maximum permissible fluid temperature
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2 Safety
2.9.4 Operating limits
The minimum flows indicated in (ðSection6.2.3.1,Page34) 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
(ðSection6.2.3.1,Page34) can be used to check whether additional heat build-up
may lead to a dangerous temperature increase at the pump surface.
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3 Transport/Temporary Storage/Disposal
3 Transport/Temporary Storage/Disposal
3.1 Checking the condition upon delivery
1. On transfer of goods, check each packaging unit for damage.
2. In the event of in-transit damage, assess the exact damage, document it and
notify KSB or the supplying dealer and the insurer about the damage in writing
immediately.
3.2 Transport
DANGER
The pump (set) could slip out of the suspension arrangement
Danger to life from falling parts!
▷ Always transport the pump (set) in the specified position.
▷ Never attach the suspension arrangement to the free shaft end or the motor
eyebolt.
▷ Observe the information about weights, centre of gravity and fastening points.
▷ Observe the applicable local accident prevention regulations.
▷ Use suitable, permitted lifting accessories, e.g. self-tightening lifting tongs.
CAUTION
Incorrect transport of the pump
Damage to the shaft seal!
▷ For transport, lock the pump shaft with a suitable transport lock to prevent any
movement of the shaft.
When transporting the pump without motor, shaft 210 must be locked.
To transport the pump/pump set suspend it from the lifting tackle as shown.
Transporting the pumpTransporting the pump set
3.3 Storage/preservation
If commissioning is to take place some time after delivery, we recommend that the
following measures be taken for pump (set) storage.
CAUTION
Damage during storage due to humidity, dirt or vermin
Corrosion/contamination of the pump (set)!
▷ For outdoor storage cover the pump (set) or the packaged pump (set) and
accessories with waterproof material.
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3 Transport/Temporary Storage/Disposal
CAUTION
Wet, contaminated or damaged openings and connections
Leakage or damage to the pump!
▷ Clean and cover pump openings and connections as required prior to putting
the pump into storage.
Store the pump (set) in a dry, protected room where the atmospheric humidity is as
constant as possible.
Rotate the shaft by hand once a month, e.g. via the motor fan.
If properly stored indoors, the pump set is protected for a maximum of 12 months.
New pumps/pump sets are supplied by our factory duly prepared for storage.
For storing a pump (set) which has already been operated, the shutdown measures
must be adhered to. (ðSection6.3.1,Page35)
3.4 Return to supplier
1. Drain the pump as per operating instructions. (ðSection7.3,Page42)
2. Flush and clean the pump, particularly if it has been used for handling noxious,
explosive, hot or other hazardous fluids.
3. If the pump has handled fluids whose residues could lead to corrosion damage
in the presence of atmospheric humidity or could ignite upon contact with
oxygen also neutralise the pump and blow through with anhydrous inert gas to
ensure drying.
4. Always complete and enclose a certificate of decontamination when returning
the pump.
Indicate any safety measures and decontamination measures taken.
(ðSection11,Page61)
NOTE
If required, a blank certificate of decontamination can be downloaded from the
following web site: www.ksb.com/certificate_of_decontamination
3.5 Disposal
WARNING
Fluids handled, consumables and supplies which are hot and/or pose a health
hazard
Hazard to persons and the environment!
▷ Collect and properly dispose of flushing fluid and any fluid residues.
▷ Wear safety clothing and a protective mask if required.
▷ Observe all legal regulations on the disposal of fluids posing a health hazard.
1. Dismantle the pump (set).
Collect greases and other lubricants during dismantling.
2. Separate and sort the pump materials, e.g. by:
- Metals
- Plastics
- Electronic waste
- Greases and other lubricants
3. Dispose of materials in accordance with local regulations or in another
controlled manner.
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4 Description of the Pump (Set)
4 Description of the Pump (Set)
4.1 General description
Pump for handling uncontaminated and contaminated fluids.
▪ Close-coupled pump with shaft seal
▪ Directly flanged standardised motor
Fig.2: Design with wear plate for: GNNG, GDNG, DDDD
▪ Pump casing fitted with a wear plate
▪ Clearances
Fig.3: Clearances
1Impeller type K2Impeller type O
3Impeller type F
Installation types
▪ Horizontal installation
▪ Vertical installation
Shaft seal
▪ Uncooled mechanical seal with/without oil reservoir
5)
Pump sets for vertical installation are generally fitted with an oil reservoir. For
horizontal installation, an oil reservoir can be fitted as an option.
Only single mechanical seals are fitted in the conical discharge chamber.
Table7: Mechanical seal makes
Material variant
of pump
DesignSupplierTypeMaterial
combination to
EN12756
GNNG
GDNG
DDDD
Single,
unbalanced
Burgmann
John Crane2100Q5Q5VGG
6)
MG1 - G6Q1Q1VGG
Q1Q1EGG
Q5Q5EGG
Single, balanced KSB4 KBLU1U1VGG
1
5)Pump sets for vertical installation are fitted with an oil reservoir. For horizontal installation, an oil reservoir can be fitted as
an option.
6)Other mechanical seal makes to EN12756 (DIN24960), version I1k possible
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4 Description of the Pump (Set)
Impeller type
▪ Various application-oriented impeller types (ðSection2.2,Page8)
Bearings
▪ Grease-packed deep groove ball bearings
Table8: Deep-groove ball bearings
Motor sizeDeep groove ball bearing
fromto
901126012 2RS C
1321806312 2RS C
to DIN 625
3
3
Automation
Automation options:
▪ PumpDrive
▪ PumpMeter
Connections
▪ Suction flange with blind holes to DIN2501, PN10/16 with tapped blind holes of
1,25d for hexagon head bolts
▪ Discharge flange with clearance holes to EN1092-2, PN16/21/B
1Wear plate2Casing/discharge nozzle
3Discharge cover4Intermediate lantern
5Shaft6Casing/suction nozzle
7Impeller8Shaft seal chamber
9Bearing, pump end10 Motor
Design The horizontal, non-self-priming, radially split volute casing pump in back pull-out
design is designed with an axial fluid inlet and a radial outlet.
The hydraulic system and the motor are firmly connected and form a close-coupled
unit. Impeller (7) and motor (10) are arranged on a common shaft (5).
Function The steadily rotating impeller (7) of the centrifugal pump transfers mechanical
energy to the fluid passing through.
The fluid enters the pump axially via a suction nozzle (6) and is accelerated outward
in a cylindrical flow by the rotating impeller (7). The flow profile of the pump casing
converts the kinetic energy of the fluid into pressure energy. The fluid leaves the
pump via the discharge nozzle (2).
The casing is fitted with a replaceable wear plate (1). The diagonal clearance gap
prevents frequent deviation of the flow in the clearance gap heading in the direction
of the suction nozzle. This ensures a longer service life if solids-laden fluids are
handled.
The casing is closed by a discharge cover (3). The shaft (5) enters the casing via this
discharge cover. A shaft seal (8) provides reliable sealing towards the atmosphere.
The shaft is supported by oil-lubricated rolling element bearings (9). The motor (10) is
connected to the casing via an intermediate lantern (4).
Sealing The pump is sealed with a shaft seal.
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4 Description of the Pump (Set)
4.7 Noise characteristics
Table10: Surface sound pressure level L
Rated power
input
PN [kW]
16760
26962
37164
47266
67468
87670
117873
158075
198177
228378
7)8)
pA
2900 rpm
[dB]
Pump set
1450 rpm
[dB]
4.8 Scope of supply
Depending on the model, the following items are included in the scope of supply:
▪ Pump
▪ Surface-cooled IEC three-phase current squirrel-cage motor
▪ Cover plates at drive lantern to EN294
4.9 Dimensions and weights
For dimensions and weights please refer to the general arrangement drawing/outline
drawing of the pump/pump set.
7)Spatial average; as per ISO 3744 and EN 12639; valid for pump operation in the Q/Qopt = 0.80 - 1.1 range and for noncavitating operation. If noise levels are to be warranted, add +3dB for measuring and constructional tolerance.
8)Increase for 60Hz operation: 3500 rpm, +3dB; 1750 rpm + 1dB; 1160 rpm + 0 dB
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5 Installation at Site
5 Installation at Site
5.1 Checks to be carried out prior to installation
Place of installation
WARNING
Installation on mounting surface which is unsecured and cannot support the load
Personal injury and damage to property!
▷ Use a concrete of compressive strength class C12/15 which meets the
requirements of exposure class XC1 to EN206-1.
▷ The mounting surface must be set, flat, and level.
▷ Observe the weights indicated.
1. Check the structural requirements.
All structural work required must have been prepared in accordance with the
dimensions stated in the outline drawing/general arrangement drawing.
5.2 Installing the pump set
DANGER
Static charging due to insufficient potential equalisation
Explosion hazard!
▷ Make sure that the connection between pump and baseplate is electrically
conductive.
Installing the pump set in a horizontal position
No special foundation is required for installation. An even slab of concrete is
sufficient as an installation surface.
On pumps supplied with a mounting plate, the mounting plate can be used as a
template for drilling.
The mounting plate and the foundation rails must not be set in concrete.
ü The installation surface has the required strength and characteristics.
1. Position the pump set on the anchoring holes and align it with the help of a
spirit level (on the discharge nozzle).
2. Compensate any differences in height until the discharge nozzle is in a
horizontal position.
3. Fasten the pump set.
The screws/bolts are not included in the scope of supply.
▷ Never install the pump set with the "motor below".
CAUTION
Insufficient lubrication of the mechanical seal
Damage to the mechanical seal!
▷ Pump sets which are designed for horizontal installation must never be
installed in a vertical position.
1. Check whether the pipeline can carry the weight of the pump.
Install suitable supports if necessary.
2. Install the pump in the pipeline in a vertical position, with the motor on top.
5.3 Piping
5.3.1 Connecting the piping
DANGER
Impermissible loads acting on the pump nozzles
Danger to life from escaping hot, toxic, corrosive or flammable fluids!
▷ Do not use the pump as an anchorage point for the piping.
▷ Anchor the pipes in close proximity to the pump and connect them properly
without transmitting any stresses or strains.
▷ Observe the permissible forces and moments at the pump nozzles.
▷ Take appropriate measures to compensate for thermal expansion of the piping.
CAUTION
Incorrect earthing during welding work at the piping
Destruction of rolling element bearings (pitting effect)!
▷ Never earth the electric welding equipment on the pump or baseplate.
▷ Prevent current flowing through the rolling element bearings.
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5 Installation at Site
1
2
NOTE
Installing check and shut-off elements in the system is recommended, depending on
the type of plant and pump. However, such elements must not obstruct proper
drainage or hinder disassembly of the pump.
ü The suction lift line has been laid with a rising slope, the suction head line with a
downward slope towards the pump.
ü A flow stabilisation section having a length equivalent to at least twice the
diameter of the suction flange has been provided upstream of the suction flange.
ü The nominal diameters of the pipelines are equal to or greater than the nominal
diameters of the pump nozzles.
ü The pipelines have been anchored in close proximity to the pump and connected
without transmitting any stresses or strains.
1. Thoroughly clean, flush and blow through all vessels, pipelines and connections
(especially of new installations).
2. Before installing the pump in the piping, remove the flange covers on the
suction and discharge nozzles of the pump.
CAUTION
Welding beads, scale and other impurities in the piping
Damage to the pump!
▷ Remove any impurities from the piping.
▷ If necessary, install a filter.
▷ Observe the information in (ðSection7.2.2.1,Page40) .
3. If required, install a filter in the piping (see drawing: Filter in the piping).
Fig.5: Filter in the piping
1Differential pressure gauge2Filter
NOTE
Use a filter made of corrosion-resistant material.
Use a filter with a filter area three times the cross-section of the piping.
Conical filters have proved suitable.
4. Connect the pump nozzles to the piping.
CAUTION
Aggressive flushing liquid and pickling agent
Damage to the pump!
▷ Match the cleaning operation mode and duration of flushing and pickling to
the casing materials and seal materials used.
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5 Installation at Site
[+]
F
y
F
z
F
x
F
x
F
z
F
y
F
x
F
z
F
y
M
y
M
z
M
x
DDDD
GNNG, GDNG
0,4
0,5
0,6
0,7
0,8
0,9
1
020406080100
k = f(T)
T [°C]
5.3.2 Permissible forces and moments at the pump nozzles
The resulting permissible forces have
been determined according to:
Forces and moments at the pump nozzles
The data on forces and moments apply to static piping loads only. If the limits are
exceeded, they must be checked and verified.
If a computerised strength analysis is required, values are available on request only.
The values are only applicable if the pump is installed on a completely grouted
baseplate and bolted to a rigid and level foundation.
Correction coefficients depending on material and temperature (see diagram below).
Table11: Permissible forces (F) and moments (M) at the pump nozzles
The volute casing and casing/discharge cover take on the same temperature as the
fluid handled
Risk of burns!
▷ Insulate the volute casing.
▷ Fit protective equipment.
5.5 Electrical connection
DANGER
Electrical connection work by unqualified personnel
Risk of fatal injury due to electric shock!
▷ Always have the electrical connections installed by a trained and qualified
electrician.
▷ Observe regulations IEC 60364 and, for explosion-proof models, EN60079.
WARNING
Incorrect connection to the mains
Damage to the mains network, short circuit!
▷ Observe the technical specifications of the local energy supply companies.
1. Check the available mains voltage against the data on the motor name plate.
2. Select an appropriate starting method.
NOTE
A motor protection device is recommended.
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5 Installation at Site
5.5.1 Setting the time relay
CAUTION
Switchover between star and delta on three-phase motors with star-delta starting
takes too long.
Damage to the pump (set)!
▷ Keep switch-over intervals between star and delta as short as possible.
Table12: Time relay settings for star-delta starting:
Motor ratingY time to be set
[kW][s]
≤ 30< 3
> 30< 5
5.5.2 Connecting the motor
NOTE
In compliance with IEC 60034-8, three-phase motors are always wired for clockwise
rotation (looking at the motor shaft stub).
The pump's direction of rotation is indicated by an arrow on the pump.
1. Match the motor's direction of rotation to that of the pump.
2. Observe the manufacturer's product literature supplied with the motor.
5.5.3 Earthing
DANGER
Electrostatic charging
Explosion hazard!
Damage to the pump set!
▷ Connect the PE conductor to the earthing terminal provided.
▷ Provide for potential equalisation between the pump set and foundation.
5.6 Checking the direction of rotation
DANGER
Temperature increases resulting from contact between rotating and stationary
components
Explosion hazard!
Damage to the pump set!
▷ Never check the direction of rotation by starting up the unfilled pump.
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WARNING
Hands inside the pump casing
Risk of injuries, damage to the pump!
▷ Always disconnect the pump set from the power supply and secure it against
unintentional start-up before inserting your hands or other objects into the
pump.
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5 Installation at Site
CAUTION
Drive and pump running in the wrong direction of rotation
Damage to the pump!
▷ Refer to the arrow indicating the direction of rotation on the pump.
▷ Check the direction of rotation. If required, check the electrical connection and
correct the direction of rotation.
The correct direction of rotation of the motor and pump is clockwise (seen from the
drive end).
1. Start the motor and stop it again immediately to determine the motor's
direction of rotation.
2. Check the direction of rotation.
The motor's direction of rotation must match the arrow indicating the direction
of rotation on the pump.
3. If the motor runs in the wrong direction of rotation, check the electrical
connection of the motor and the control system, if applicable.
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6 Commissioning/Start-up/Shutdown
6 Commissioning/Start-up/Shutdown
6.1 Commissioning/Start-up
6.1.1 Prerequisites for commissioning/start-up
Before commissioning/starting up the pump set, make sure that the following
conditions are met:
▪ The pump set has been mechanically connected as specified.
▪ The pump set has been properly connected to the power supply and is equipped
with all protection devices. (ðSection5.5,Page25)
▪ The pump has been primed with the fluid to be handled. The pump has been
vented.
▪ The direction of rotation has been checked. (ðSection5.6,Page26)
▪ All auxiliary connections required are connected and operational.
▪ The lubricants have been checked. (ðSection7.2.3,Page40)
▪ After prolonged shutdown of the pump (set), the activities required for returning
the equipment to service have been carried out. (ðSection6.4,Page35)
6.1.2 Filling in the lubricant
▪ Grease-lubricated bearings
Grease-lubricated bearings have been packed with grease at the factory.
▪ Lubricant reservoir for mechanical seals
The oil reservoir is not filled at the factory.
For horizontal installation of the pump, an oil reservoir can be fitted as an option.
For vertical installation of the pump, an oil reservoir must be fitted.
If oil lubrication is to be implemented, fill the oil reservoir as follows, prior to
commissioning of the pump set.
Oil quality see (ðSection7.2.3.2.2,Page41)
Oil quantity see (ðSection7.2.3.2.3,Page41)
DANGER
Risk of potentially explosive atmosphere by mixing of incompatible fluids in the
auxiliary piping
Risk of burns!
Explosion hazard!
▷ Make sure that the barrier fluid or quench liquid are compatible with the fluid
handled.
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6 Commissioning/Start-up/Shutdown
B
A
13
20
2130
A
B
Horizontal installation
Fig.7: Filling / topping up the oil reservoir — horizontal installation
AMaximum fill levelBMinimum fill level
1. Unscrew vent plug 913.
2. Fill in lubricant until the lubricant level indicator lies between the minimum and
maximum markings.
3. Tighten vent plug 913.
Vertical installation
Fig.8: Filling / topping up the oil reservoir — vertical installation
AMaximum fill levelBMinimum fill level
1. Unscrew vent plug 913.
2. Fill in lubricant until the lubricant level indicator lies between the minimum and
maximum markings.
3. Tighten vent plug 913.
6.1.3 Shaft seal
Shaft seals are fitted prior to delivery.
Observe the instructions on dismantling (ðSection7.4.5,Page43) or assembly
(ðSection7.5.3,Page45) .
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6 Commissioning/Start-up/Shutdown
6.1.4 Priming and venting the pump
DANGER
Risk of potentially explosive atmosphere inside the pump
Explosion hazard!
▷ The pump internals in contact with the fluid to be handled, including the seal
chamber and auxiliary systems must be filled with the fluid to be handled at all
times.
▷ Provide sufficient inlet pressure.
▷ Provide an appropriate monitoring system.
DANGER
Risk of potentially explosive atmosphere by mixing of incompatible fluids in the
auxiliary piping
Risk of burns!
Explosion hazard!
▷ Make sure that the barrier fluid or quench liquid are compatible with the fluid
handled.
DANGER
Shaft seal failure caused by insufficient lubrication
Hot or toxic fluid could escape!
Damage to the pump!
▷ Before starting up the pump set, vent the pump and suction line and prime
both with the fluid to be handled.
CAUTION
Increased wear due to dry running
Damage to the pump set!
▷ Never operate the pump set without liquid fill.
▷ Never close the shut-off element in the suction line and/or supply line during
pump operation.
1. Vent the pump and suction line and prime both with the fluid to be handled.
Connection 6D can be used for venting (see drawing of auxiliary connections).
2. Fully open the shut-off element in the suction line.
3. Fully open all auxiliary feed lines (barrier fluid, flushing liquid, etc.), if any.
4. Open the shut-off element, if any, in the vacuum balance line and close the
vacuum-tight shut-off element, if any.
NOTE
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For design-inherent reasons some unfilled volume in the hydraulic system cannot be
excluded after the pump has been primed for commissioning/start-up. However,
once the motor is started up the pumping effect will immediately fill this volume
with the fluid handled.
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6 Commissioning/Start-up/Shutdown
6.1.5 Start-up
DANGER
Non-compliance with the permissible pressure and temperature limits if the pump
is operated with the suction and/or discharge line closed.
Explosion hazard!
Hot or toxic fluids escaping!
▷ Never operate the pump with the shut-off elements in the suction line and/or
discharge line closed.
▷ Only start up the pump set with the discharge-side shut-off element slightly or
fully open.
DANGER
Excessive temperatures due to dry running or excessive gas content in the fluid
handled
Explosion hazard!
Damage to the pump set!
▷ Never operate the pump set without liquid fill.
▷ Prime the pump as per operating instructions. (ðSection6.1.4,Page30)
▷ Always operate the pump within the permissible operating range.
WARNING
Unprotected rotating shaft
Risk of injury by rotating shaft!
▷ Always operate the pump set with a shaft guard in accordance with the
accident prevention regulations.
CAUTION
Abnormal noises, vibrations, temperatures or leakage
Damage to the pump!
▷ Switch off the pump (set) immediately.
▷ Eliminate the causes before returning the pump set to service.
ü The system piping has been cleaned.
ü Pump, suction line and inlet tank, if any, have been vented and primed with the
fluid to be pumped.
ü The lines for priming and venting have been closed.
CAUTION
Start-up against open discharge line
Motor overload!
▷ Make sure the motor has sufficient power reserves.
▷ Use a soft starter.
▷ Use speed control.
1. Fully open the shut-off element in the suction head/suction lift line.
2. Close or slightly open the shut-off element in the discharge line.
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6 Commissioning/Start-up/Shutdown
3. Start up the motor.
4. Immediately after the pump has reached full rotational speed, slowly open the
shut-off element in the discharge line and adjust it to comply with the duty
point.
6.1.6 Shutdown
CAUTION
Heat build-up inside the pump
Damage to the shaft seal!
▷ Depending on the type of installation, the pump set requires sufficient after-
run time – with the heat source switched off – until the fluid handled has
cooled down.
ü The shut-off element in the suction line is and remains open.
1. Close the shut-off element in the discharge line.
2. Switch off the motor and make sure the pump set runs down smoothly to a
standstill.
NOTE
If the discharge line is equipped with a non-return or check valve, the shut-off
element may remain open provided that the system conditions and system
regulations are considered and observed.
NOTE
If shut-off is not possible, the pump will run in reverse direction.
The reverse runaway speed must be lower than the rated speed.
For prolonged shutdown periods:
1. Close the shut-off element in the suction line.
2. Close any auxiliary connections.
If the fluid to be handled is fed in under vacuum, also supply the shaft seal with
barrier fluid during standstill.
3. Drain the pump. (ðSection7.3,Page42)
CAUTION
Risk of freezing during prolonged pump shutdown periods
Damage to the pump!
▷ Drain the pump and the cooling/heating chambers (if any) or otherwise protect
them against freezing.
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6 Commissioning/Start-up/Shutdown
6.2 Operating limits
DANGER
Non-compliance with operating limits for pressure, temperature, fluid handled and
speed
Explosion hazard!
Hot or toxic fluid could escape!
▷ Comply with the operating data indicated in the data sheet.
▷ Never use the pump for handling fluids it is not designed for.
▷ Avoid prolonged operation against a closed shut-off element.
▷ Never operate the pump at temperatures, pressures or rotational speeds
exceeding those specified in the data sheet or on the name plate unless the
written consent of the manufacturer has been obtained.
DANGER
Formation of a potentially explosive atmosphere inside the pump
Explosion hazard!
▷ When draining tanks take suitable measures to prevent dry running of the
pump (e.g. fill level monitoring).
6.2.1 Ambient temperature
CAUTION
Operation outside the permissible ambient temperature
Damage to the pump (set)!
▷ Observe the specified limits for permissible ambient temperatures.
Observe the following parameters and values during operation:
Table13: Permissible ambient temperatures
Permissible ambient temperatureValue
Maximum40 °C; if the ambient temperature is any
higher, contact the manufacturer.
MinimumSee data sheet.
6.2.2 Frequency of starts
DANGER
Excessive surface temperature of the motor
Explosion hazard!
Damage to the motor!
▷ In case of explosion-proof motors, observe the frequency of starts specified in
the manufacturer's product literature.
The frequency of starts is usually determined by the maximum temperature increase
of the motor. This largely depends on the power reserves of the motor in steadystate operation and on the starting conditions (DOL, star-delta, moments of inertia,
etc). If the starts are evenly spaced over the period indicated, the following limits
serve as orientation for start-up with the discharge-side gate valve slightly open:
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6 Commissioning/Start-up/Shutdown
×
×
×
Table14: Frequency of starts
Motor ratingMaximum frequency of starts
9)
[kW][Starts/hour]
≤ 1215
13 - 2210
CAUTION
Re-starting while motor is still running down
Damage to the pump (set)!
▷ Do not re-start the pump set before the pump rotor has come to a standstill.
6.2.3 Fluid handled
6.2.3.1 Flow rate
Unless specified otherwise in the characteristic curves or in the data sheets, the
following applies:
▪ Short-time operation: Q
▪ Continuous operation: Q
▪ 2-pole operation: Q
▪ 4-pole operation: Q
min
12)
=1.1×Q
max
12)
=1.25×Q
max
10)
=0.1×Q
10)
=0.3×Q
min
The data refer to water and water-like fluids. Longer operating periods with these
fluids and at the flow rates indicated will not cause an additional increase in the
temperatures on the pump surface. However, if the physical properties of the fluids
handled differ from those of water, the calculation formula below must be used to
check if an additional heat build-up may lead to a dangerous temperature increase at
the pump surface. If necessary, the minimum flow must be increased.
11)
opt
11)
opt
11)
opt
11)
opt
Table15: Key
SymbolDescriptionUnit
cSpecific heat capacityJ/kg K
gGravitational constantm/s²
HPump discharge headm
T
f
T
O
Fluid temperature°C
Temperature at the casing surface°C
Pump efficiency at duty pointTemperature differenceK
6.2.3.2 Density of the fluid handled
The pump input power changes in proportion to the density of the fluid handled.
9)The values indicated must only be exceeded after consultation with the motor manufacturer or KSB.
10)Minimum permissible flow rate
11)Flow rate at best efficiency point
12)Maximum permissible flow rate
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6 Commissioning/Start-up/Shutdown
CAUTION
Impermissibly high density of the fluid handled
Motor overload!
▷ Observe the information about fluid density in the data sheet.
▷ Make sure the motor has sufficient power reserves.
6.2.3.3 Abrasive fluids
Do not exceed the maximum permissible solids content specified in the data sheet.
When the pump handles fluids containing abrasive substances, increased wear of the
hydraulic system and shaft seal are to be expected. In this case, reduce the commonly
recommended inspection intervals.
6.3 Shutdown/storage/preservation
6.3.1 Measures to be taken for shutdown
The pump (set) remains installed
ü Sufficient fluid is supplied for the functional check run of the pump.
1. For prolonged shutdown periods, start up the pump (set) regularly between
once a month and once every three months for approximately five minutes.
ð This will prevent the formation of deposits within the pump and the pump
intake area.
The pump (set) is removed from the pipe and stored
ü The pump has been properly drained. (ðSection7.3,Page42)
ü The safety instructions for dismantling the pump have been observed.
(ðSection7.4.1,Page42)
1. Spray-coat the inside wall of the pump casing and, in particular, the impeller
clearance areas with a preservative.
2. Spray the preservative through the suction nozzle and discharge nozzle.
It is advisable to then close the pump nozzles (e.g. with plastic caps).
3. Oil or grease all exposed machined parts and surfaces of the pump (with
silicone-free oil or grease, food-approved if required) to protect them against
corrosion.
Observe the additional instructions on preservation. (ðSection3.3,Page13)
If the pump set is to be stored temporarily, only preserve the wetted components
made of low-alloy materials. Commercially available preservatives can be used for
this purpose. Observe the manufacturer's instructions for application/removal.
6.4 Returning to service
For returning the equipment to service observe the sections on commissioning/startup and the operating limits. (ðSection6.1,Page28) (ðSection6.2,Page33)
In addition, carry out all servicing/maintenance operations before returning the
pump (set) to service. (ðSection7,Page37)
WARNING
Failure to re-install or re-activate protective devices
Risk of injury from moving parts or escaping fluid!
▷ As soon as the work is completed, re-install and re-activate any safety-relevant
devices and protective devices.
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6 Commissioning/Start-up/Shutdown
NOTE
If the pump has been out of service for more than one year, replace all elastomer
seals.
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7 Servicing/Maintenance
7 Servicing/Maintenance
7.1 Safety regulations
DANGER
Sparks produced during servicing work
Explosion hazard!
▷ Observe the safety regulations in force at the place of installation!
▷ Always perform maintenance work on explosion-proof pump sets outside
potentially explosive atmospheres.
DANGER
Improperly serviced pump set
Explosion hazard!
Damage to the pump set!
▷ Service the pump set regularly.
▷ Prepare a maintenance schedule with special emphasis on lubricants and shaft
seal.
The operator ensures that maintenance, inspection and installation is performed by
authorised, qualified specialist personnel who are thoroughly familiar with the
manual.
WARNING
Unintentional starting of the pump set
Risk of injury by moving components and shock currents!
▷ Ensure that the pump set cannot be started unintentionally.
▷ Always make sure the electrical connections are disconnected before carrying
out work on the pump set.
DANGER
Improper cleaning of coated pump surfaces
Explosion hazard by electrostatic discharge!
▷ When cleaning coated pump surfaces in atmospheres of Explosion groupIIC,
use suitable anti-static equipment.
WARNING
Fluids handled, consumables and supplies which are hot and/or pose a health
hazard
Risk of injury!
▷ Observe all relevant laws.
▷ When draining the fluid take appropriate measures to protect persons and the
environment.
▷ Decontaminate pumps which handle fluids posing a health hazard.
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7 Servicing/Maintenance
WARNING
Insufficient stability
Risk of crushing hands and feet!
▷ During assembly/dismantling, secure the pump (set)/pump parts to prevent
tilting or tipping over.
A regular maintenance schedule will help avoid expensive repairs and contribute to
trouble-free, reliable operation of the pump, pump set and pump parts with a
minimum of servicing/maintenance expenditure and work.
NOTE
All maintenance work, service work and installation work can be carried out by KSB
Service or authorised workshops. For contact details please refer to the enclosed
"Addresses" booklet or visit "www.ksb.com/contact" on the Internet.
Never use force when dismantling and reassembling the pump set.
7.2 Servicing/Inspection
7.2.1 Supervision of operation
DANGER
Risk of potentially explosive atmosphere inside the pump
Explosion hazard!
▷ The pump internals in contact with the fluid to be handled, including the seal
chamber and auxiliary systems must be filled with the fluid to be handled at all
times.
▷ Provide sufficient inlet pressure.
▷ Provide an appropriate monitoring system.
DANGER
Incorrectly serviced shaft seal
Explosion hazard!
Hot, toxic fluid escaping!
Damage to the pump set!
Risk of burns!
Fire hazard!
▷ Regularly service the shaft seal.
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DANGER
Excessive temperatures as a result of bearings running hot or defective bearing
seals
Explosion hazard!
Fire hazard!
Damage to the pump set!
▷ Regularly check the rolling element bearings for running noises.
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7 Servicing/Maintenance
CAUTION
Increased wear due to dry running
Damage to the pump set!
▷ Never operate the pump set without liquid fill.
▷ Never close the shut-off element in the suction line and/or supply line during
pump operation.
CAUTION
Impermissibly high temperature of fluid handled
Damage to the pump!
▷ Prolonged operation against a closed shut-off element is not permitted
(heating up of the fluid).
▷ Observe the temperature limits in the data sheet and in the section on
operating limits. (ðSection6.2,Page33)
While the pump is in operation, observe and check the following:
▪ The pump must run quietly and free from vibrations at all times.
▪ Check the shaft seal.
▪ Check the static sealing elements for leakage.
▪ Check the rolling element bearings for running noises.
Vibrations, noise and an increase in current input occurring during unchanged
operating conditions indicate wear.
▪ Monitor the correct functioning of any auxiliary connections.
▪ Monitor the stand-by pump.
To make sure that stand-by pumps are ready for operation, start them up once a
week.
▪ Monitor the bearing temperature.
The bearing temperature must not exceed 90 °C (measured on the motor
housing).
CAUTION
Operation outside the permissible bearing temperature
Damage to the pump!
▷ The bearing temperature of the pump (set) must never exceed 90 °C (measured
on the outside of the motor housing).
NOTE
After commissioning, increased temperatures may occur at grease-lubricated rolling
element bearings due to the running-in process. The final bearing temperature is
only reached after a certain period of operation (up to 48 hours depending on the
conditions).
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7 Servicing/Maintenance
7.2.2 Inspection work
DANGER
Excessive temperatures caused by friction, impact or frictional sparks
Explosion hazard!
Fire hazard!
Damage to the pump set!
▷ Regularly check the coupling guard, plastic components and other guards of
rotating parts for deformation and sufficient distance from rotating parts.
DANGER
Static charging due to insufficient potential equalisation
Explosion hazard!
▷ Make sure that the connection between pump and baseplate is electrically
conductive.
7.2.2.1 Cleaning filters
CAUTION
Insufficient inlet pressure due to clogged filter in the suction line
Damage to the pump!
▷ Monitor contamination of filter with suitable means (e.g. differential pressure
gauge).
▷ Clean filter at appropriate intervals.
7.2.2.2 Checking the bearing seals
DANGER
Excessive temperatures caused by mechanical contact
Risk of explosion!
Damage to the pump set!
▷ Check correct seating of axial seal rings mounted on the shaft.
Only gentle contact of the sealing lip shall be established.
7.2.3 Lubrication and lubricant change
DANGER
Excessive temperatures as a result of bearings running hot or defective bearing
seals
Explosion hazard!
Fire hazard!
Damage to the pump set!
▷ Regularly check the condition of the lubricant.
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7.2.3.1 Grease lubrication
Deep groove ball bearing 321.01 is packed with grease for life and does not require
re-lubrication.
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7 Servicing/Maintenance
7.2.3.1.1 Intervals
▪ Under suitable operating conditions the grease-lubricated bearings will run for
15,000 operating hours.
▪ Under unfavourable operating conditions (e.g. high room temperature, high
atmospheric humidity, dust-laden air, aggressive industrial atmosphere) check
the bearings earlier and replace them, if required.
▪ Replace the rolling element bearings after 15,000 operating hours or 2 years of
continuous operation.
7.2.3.2 Oil reservoir (if applicable)
7.2.3.2.1 Intervals
Change to oil every 4000 operating hours but at least once a year.
7.2.3.2.2 Oil quality
Table16: Oil quality
TypeSpecification
Motor oilSAE 10 W/20 W
Lubricating oilCL 32...68 DN 51 517
Lubricants posing a health hazard and/or hot lubricants
Hazard to persons and the environment!
▷ When draining the lubricant take appropriate measures to protect persons and
the environment.
▷ Wear safety clothing and a protective mask if required.
▷ Collect and dispose of any lubricants.
▷ Observe all legal regulations on the disposal of fluids posing a health hazard.
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7 Servicing/Maintenance
7.3 Drainage/cleaning
WARNING
Fluids handled, consumables and supplies which are hot and/or pose a health
hazard
Hazard to persons and the environment!
▷ Collect and properly dispose of flushing fluid and any fluid residues.
▷ Wear safety clothing and a protective mask if required.
▷ Observe all legal regulations on the disposal of fluids posing a health hazard.
1. Use connection 6B to drain the fluid handled (see drawing of auxiliary
connections).
2. Always flush the system if it has been used for handling noxious, explosive, hot
or other hazardous fluids.
Always flush and clean the pump before transporting it to the workshop.
Provide a certificate of decontamination for the pump. (ðSection11,Page61)
7.4 Dismantling the pump set
7.4.1 General information/Safety regulations
DANGER
Insufficient preparation of work on the pump (set)
Risk of injury!
▷ Properly shut down the pump set.
▷ Close the shut-off elements in the suction line and discharge line.
▷ Drain the pump and release the pump pressure. (ðSection7.3,Page42)
▷ Shut off any auxiliary feed lines.
▷ Allow the pump set to cool down to ambient temperature.
WARNING
Unqualified personnel performing work on the pump (set)
Risk of injury!
▷ Always have repair work and maintenance work performed by specially trained,
qualified personnel.
WARNING
Hot surface
Risk of injury!
▷ Allow the pump set to cool down to ambient temperature.
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WARNING
Improper lifting/moving of heavy assemblies or components
Personal injury and damage to property!
▷ Use suitable transport devices, lifting equipment and lifting tackle to move
heavy assemblies or components.
Always observe the safety instructions and information. (ðSection7.1,Page37)
For any work on the motor, observe the instructions of the relevant motor
manufacturer.
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7 Servicing/Maintenance
For dismantling and reassembly observe the exploded views and the general
assembly drawing. (ðSection9.1,Page52)
In case of damage you can always contact KSB Service.
NOTE
All maintenance work, service work and installation work can be carried out by KSB
Service or authorised workshops. For contact details please refer to the enclosed
"Addresses" booklet or visit "www.ksb.com/contact" on the Internet.
NOTE
After a prolonged period of operation the individual components may be hard to
pull off the shaft. If this is the case, use a brand name penetrating agent and/or - if
possible - an appropriate puller.
7.4.2 Preparing the pump set
1. De-energise the pump set and secure it against unintentional start-up.
2. Disconnect and remove all auxiliary pipework.
3. If an oil reservoir has been fitted, drain the oil.
7.4.3 Dismantling the motor
WARNING
Motor tipping over
Risk of squashing hands and feet!
▷ Suspend or support the motor to prevent it from tipping over.
ü The pump (set) is disconnected from the power supply.
1. Fasten a rope to motor 800 and intermediate lantern 146 and suspend it from a
suitable hoisting tackle.
2. Undo hexagon nuts 920.01.
3. Pull motor 800 with intermediate lantern 146 and discharge cover 163 out of
pump casing 101 in axial direction.
If the discharge cover is stuck, use forcing screws 901.30.
4. Undo hexagon nut 920.04.
5. Pull motor 800 out of intermediate lantern 146 in axial direction.
7.4.4 Removing the impeller
ü The motor has been removed. (ðSection7.4.3,Page43)
1. Undo impeller screw 906.
2. Remove O-ring 412.03.
3. Pull impeller 230 off with an impeller removal tool.
4. Leave key 940.01 in the keyway.
5. Clean all components and inspect them for signs of wear.
7.4.5 Removing mechanical seal MG1-G6
ü The impeller has been removed. (ðSection7.4.4,Page43)
ü The oil reservoir has been drained.
1. Remove key 940.01.
2. Pull O-ring 412.06 and shaft protecting sleeve 524.01 with the rotating assembly
of mechanical seal 433.02 off the shaft.
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7 Servicing/Maintenance
3. Undo hexagon nuts 920.15 or socket head cap screws 914.22 (on pump sizes
50-200 and 65-200).
4. Take off discharge cover 163.
5. Remove the stationary assembly of the mechanical seal.
6. Remove O-ring 412.08.
7. Clean all components and inspect them for signs of wear.
7.4.6 Removing the shaft and rolling element bearings
ü The mechanical seal has been removed. (ðSection7.4.5,Page43)
1. Remove circlip 932.01.
2. Slide joint ring 411.77 off the shaft. Remove the oil ring, if any.
3. Remove shaft 210 with rolling element bearing 321.01 from intermediate
lantern 146.
4. Remove circlip 932.20.
5. Pull off rolling element bearing 321.01.
6. Remove insert ring 513.11 from intermediate lantern 146.
7. Insert O-ring 412.11.
8. Clean all components and inspect them for signs of wear.
7.5 Reassembling the pump set
7.5.1 General information/Safety regulations
WARNING
Improper lifting/moving of heavy assemblies or components
Personal injury and damage to property!
▷ Use suitable transport devices, lifting equipment and lifting tackle to move
heavy assemblies or components.
CAUTION
Improper reassembly
Damage to the pump!
▷ Reassemble the pump (set) in accordance with the general rules of sound
engineering practice.
▷ Use original spare parts only.
Sequence Always reassemble the pump in accordance with the corresponding general assembly
drawing.
Sealing elements▪ Gaskets
– Always use new gaskets, making sure that they are of the same thickness and
material as the old ones.
– Always fit gaskets of asbestos-free materials or graphite without using
lubricants (e.g. copper grease, graphite paste).
▪ O-rings
– Always use new O-rings, making sure that they are of the same thickness and
material as the old ones.
– Never use O-rings that have been made by cutting an O-ring cord to size and
gluing the ends together.
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7 Servicing/Maintenance
CAUTION
Contact of O-ring with graphite or similar material
Fluid could escape!
▷ Do not coat O-ring with graphite or similar material.
▷ Use animal fats or lubricants based on silicone or PTFE.
▪ Assembly adhesives
– For gaskets, avoid the use of assembly adhesives if possible.
– If assembly adhesives are required, use a commercially available contact
adhesive (e.g. "Pattex").
– Only apply adhesive at selected points and in thin layers.
– Never use quick-setting adhesives (cyanoacrylate adhesives).
– Coat the locating surfaces of the individual components and screwed
connections with graphite or similar before reassembly.
Tightening torques For reassembly, tighten all screws and bolts as specified in this manual.
(ðSection7.6,Page47)
7.5.2 Installing the shaft and rolling element bearing
ü The individual parts have been placed in a clean and level assembly area.
ü All dismantled parts have been cleaned and checked for wear.
ü Any damaged or worn parts have been replaced by original spare parts.
ü The sealing surfaces have been cleaned.
1. Slide rolling element bearing 321.01 onto shaft 210.
2. Slide on circlip 932.20.
3. Insert O-ring 412.11.
4. Fit insert ring 513.11.
5. Half-fill the space between insert ring 513.11 and rolling element bearing
321.01 with a multi-purpose high-temperature resistant grease of NLGI grade2/
KP2P-20.
6. Apply a thin coat of oil to the outside diameter of rolling element bearing
321.01.
7. Insert shaft 210 into intermediate lantern 146.
8. Slip joint ring 411.77 onto the shaft.
9. Insert circlip 932.01.
7.5.3 Fitting the mechanical seal
The following rules must be observed when installing the mechanical seal:
▪ For installing the mechanical seal, refer to general assembly drawing.
▪ Work cleanly and accurately.
▪ Only remove the protective wrapping of the contact faces immediately before
installation takes place.
▪ Exclude any damage to the sealing surfaces or O-rings.
▪ After inserting the mating ring, check that it is plane-parallel in relation to the
casing part.
▪ The surface of the shaft protecting sleeve must be absolutely clean and smooth,
and the sleeve's mounting edge must be chamfered.
▪ When sliding the rotating unit onto the shaft protecting sleeve, take appropriate
steps to protect the surface of the shaft protecting sleeve from damage.
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7 Servicing/Maintenance
Installing mechanical seal MG1-G6
CAUTION
Contact of O-ring with lubricant made of mineral grease or oil
Damage to the O-ring!
▷ Make sure that O-rings made of ethylene propylene rubber cannot come into
contact with mineral oil or mineral grease.
▷ Make sure that O-rings made of silicone rubber cannot come into contact with
silicone oil or silicone grease.
CAUTION
Use of grease or other permanent lubricants
Hinders torque transmission! Overheating of and damage to the pump!
▷ If required, use soft soap to reduce friction.
Do not use grease or other permanent lubricants.
▷ Do not coat seal faces with grease or oil.
ü The bearing assembly and the individual parts of mechanical seal 433.02 are kept
in a clean and level assembly area.
ü All dismantled parts have been cleaned and checked for wear.
ü Any damaged or worn parts have been replaced by original spare parts.
ü The sealing surfaces have been cleaned.
1. Insert O-ring 412.08.
2. Fit the mating ring
3. Fit the oil ring, if any.
4. Fit discharge cover 163 on intermediate lantern 146.
5. Fasten hexagon nuts 920.15 (on pump sizes 50-200 and 65-200 socket head cap
screws 914.22).
6. Slide the rotating assembly onto shaft protecting sleeve 524.01 and fasten it.
ü The assembled bearing with shaft seal as well as the individual parts are kept in a
clean and level assembly area.
ü All disassembled parts have been cleaned and checked for wear.
ü Any damaged or worn parts have been replaced by original spare parts.
ü The seal faces have been cleaned.
ü Impeller bore, shaft and keyways are clean and free from burrs.
1. Insert keys 940.01 into the shaft keyway.
2. Fit the impeller with an impeller fitting and removal tool.
3. Insert O-ring 412.03.
4. Insert and tighten impeller screw 906.
Observe the tightening torque. (ðSection7.6.1,Page47)
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7 Servicing/Maintenance
7.5.5 Mounting the motor
WARNING
Motor tipping over
Risk of squashing hands and feet!
▷ Suspend or support the motor to prevent it from tipping over.
1. Generously grease the joining surfaces of the motor shaft/ pump shaft 210
connection.
2. Insert motor 800 into intermediate lantern 146.
3. Tighten hexagon nut 920.04.
4. Fasten a rope to motor 800 and intermediate lantern 146 and suspend it from a
suitable hoisting tackle.
5. Push motor 800 with intermediate lantern 146 and discharge cover 163 into
pump casing 101.
6. Tighten hexagon nuts 920.01.
7.6 Tightening torques
7.6.1 Tightening torques for the pump
Casing bolts
Table18: Tightening torques for bolted/screwed connections
Materials of bolt/hexagon nutC35E+QTA4-70
Stamp on bolt/hexagon nutYK/Y
ThreadTorque [Nm]
M 657
M 102535
M 124060
M 16100150
Impeller nut
Tightening torques for the impeller nut of all pump sizes: 50Nm
13)
A4-70
7.7 Spare parts stock
7.7.1 Ordering spare parts
Always quote the following data when ordering replacement or spare parts:
▪ Order number
▪ Order item number
▪ Consecutive number
▪ Type series
▪ Size
▪ Material variant
▪ Seal code
▪ Year of construction
Refer to the name plate for all data.
13)Unstamped bolted/screwed connections shall be treated as material combination C35E+QT.
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7 Servicing/Maintenance
Also specify the following data:
▪ Part number and description (ðSection9.1,Page52)
▪ Quantity of spare parts
▪ Shipping address
▪ Mode of dispatch (freight, mail, express freight, air freight)
7.7.2 Recommended spare parts stock for 2 years' operation to DIN24296
Table19: Quantity of spare parts for recommended spare parts stock
Part No.DescriptionNumber of pumps (including stand-by pumps)
123456 and 78 and 910 and
more
135.01Wear plate122233450%
210Shaft with hardware111122220%
230Impeller111122220%
321.01Deep groove ball
111222325%
bearing
411.77Joint ring122233450%
433.02Complete
mechanical seal
Set of sealing
14)
111222325%
24688912150%
elements
14)Includes shaft protecting sleeve 524.01
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7 Servicing/Maintenance
7.7.3 Interchangeability of pump components
Components featuring the same number in a column are interchangeable.
15)Intermediate lantern / deep groove ball bearing: 1 = up to motor size 112; 2 = from motor size 132 to motor size 180
16)For the interchangeability of KSB mechanical seal 4KBL refer to the shaft protecting sleeve as the shaft protecting sleeve is
part of the mechanical seal.
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8 Trouble-shooting
8 Trouble-shooting
WARNING
Improper work to remedy faults
Risk of injury!
▷ For any work performed to remedy faults, observe the relevant information
given in this operating manual and/or in the product literature provided by the
accessories manufacturer.
If problems occur that are not described in the following table, consultation with the
KSB customer service is required.
A Pump delivers insufficient flow rate
B Motor is overloaded
C Excessive discharge pressure
D Increased bearing temperature
E Leakage at the pump
F Excessive leakage at the shaft seal
G Vibrations during pump operation
H Impermissible temperature increase in the pump
Table21: Trouble-shooting
A B C D E F G H Possible causeRemedy
✘------- Pump delivers against an excessively
Re-adjust to duty point.
17)
high pressure.
✘------- Excessively high back pressureCheck system for impurities.
Fit a larger impeller.
18)
Increase the speed.
✘----- ✘ ✘ Pump or piping are not completely
Vent and/or prime.
vented or primed.
✘------- Supply line or impeller cloggedRemove deposits in the pump and/or piping.
✘------- Formation of air pockets in the pipingAlter piping layout.
Fit vent valve.
--- ✘- ✘ ✘- Pump is warped or sympathetic
vibrations in the piping.
Check the piping connections and secure
fixing of pump; if required, reduce distances
between the pipe clamps.
Fix the pipelines using anti-vibration material.
✘ ----
✘ ✘ Suction lift is too high/
NPSH
-
available
low.
(positive suction head) is too
Check/alter fluid level.
Fully open the shut-off element in the supply
line.
Change suction line, if the friction losses in
the suction line are too high.
Check any strainers installed/suction opening.
Observe permissible speed of pressure fall.
--- ✘ ---- Increased axial thrust
18)
Correct the rotor adjustment.
✘ ------- Air intake at the shaft sealFit new shaft seal.
✘ ------- Wrong direction of rotationInterchange two of the phases of the power
cable.
✘ ✘ ------ Motor is running on two phases only.Replace the defective fuse.
Check the electric cable connections.
17)Pump pressure must be released before attempting to remedy faults on parts which are subjected to pressure.
18)Contact the manufacturer.
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8 Trouble-shooting
A B C D E F G H Possible causeRemedy
17)
✘ ------- Speed too low
- Operation with frequency inverter
- Operation without frequency inverter
- Increase voltage/frequency at the frequency
inverter in the permissible range.
- Check voltage.
--- ✘ - ✘ ✘ - Defective bearing(s)Replace.
--- ✘ -- ✘ ✘ Flow rate is too low.Increase the minimum flow rate.
✘ ----- ✘ - Wear of internal componentsReplace worn components by new ones.
------ ✘ - Pump back pressure lower than specified
Re-adjust to duty point.
in the purchase order
- ✘ ------ Density or viscosity of fluid handled
Contact the manufacturer.
higher than stated in purchase order
----- ✘ -- Use of unsuitable materialsChange the material combination.
- ✘✘ ----- Speed too highReduce speed.
18)
---- ✘ --- Tie bolts/sealing element defectiveFit new sealing element between volute
The product/accessories have been carefully drained, cleaned and decontaminated inside and outside prior to dispatch/
placing at your disposal.
We herewith declare that this product is free from hazardous chemicals, biological and radioactive substances.
For mag-drive pumps, the inner rotor unit (impeller, casing cover, bearing ring carrier, plain bearing, inner rotor) has been
removed from the pump and cleaned. In cases of containment shroud leakage, the outer rotor, bearing bracket lantern,
leakage barrier and bearing bracket or adapter have also been cleaned.
For canned motor pumps, the rotor and plain bearing have been removed from the pump for cleaning. In cases of leakage at
the stator can, the stator space has been examined for fluid leakage; if fluid handled has penetrated the stator space, it has
been removed.
No special safety precautions are required for further handling.
The following safety precautions are required for flushing fluids, fluid residues and disposal:
We confirm that the above data and information are correct and complete and that dispatch is effected in accordance with the
relevant legal provisions.