KSB Amarex KRT Installation instructions

Submersible Motor Pump
Amarex KRT
Sizes DN40 to DN300, 50Hz, CE
Motor sizes
2-pole: 18 2.F to 37 2.F
4-pole: 15 4.F to 37 4.F
6-pole: 15 6.F to 30 6.F
8-pole: 15 8.F to 22 8.F
Installation/Operating Manual
Mat. No.: 05035487

Legal information/Copyright
Installation/Operating Manual Amarex KRT
Original operating manual
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.
© KSB SE & Co. KGaA, Frankenthal 17/02/2020

Contents
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Contents
Glossary .................................................................................................................................................. 6
1 General.................................................................................................................................................... 7
1.1 Principles ...........................................................................................................................................................7
1.2 Installation of partly completed machinery....................................................................................................8
1.3 Target group.....................................................................................................................................................8
1.4 Other applicable documents............................................................................................................................8
1.5 Symbols .............................................................................................................................................................9
1.6 Key to safety symbols/markings.......................................................................................................................9
2 Safety.................................................................................................................................................... 10
2.1 General............................................................................................................................................................10
2.2 Intended use ...................................................................................................................................................10
2.3 Personnel qualification and training.............................................................................................................11
2.4 Consequences and risks caused by non-compliance with this manual .......................................................11
2.5 Safety awareness ............................................................................................................................................11
2.6 Safety information for the operator/user.....................................................................................................12
2.7 Safety information for maintenance, inspection and installation ..............................................................12
2.8 Unauthorised modes of operation................................................................................................................12
2.9 Explosion protection ......................................................................................................................................12
2.9.1 Repair..................................................................................................................................................13
3 Transport/Storage/Disposal ................................................................................................................ 14
3.1 Checking the condition upon delivery..........................................................................................................14
3.2 Transport.........................................................................................................................................................14
3.2.1 Placing the pump set down...............................................................................................................15
3.2.2 Placing the pump set in a vertical position ......................................................................................16
3.3 Storage/preservation......................................................................................................................................16
3.4 Return to supplier...........................................................................................................................................17
3.5 Disposal ...........................................................................................................................................................18
4 Description of the Pump (Set)............................................................................................................. 19
4.1 General description ........................................................................................................................................19
4.2 Designation.....................................................................................................................................................19
4.3 Product information.......................................................................................................................................19
4.3.1 Product information as per Regulation No. 1907/2006(REACH) ....................................................19
4.4 Name plate......................................................................................................................................................20
4.5 Design details..................................................................................................................................................20
4.6 Installation types ............................................................................................................................................21
4.7 Configuration and function...........................................................................................................................21
4.8 Noise characteristics .......................................................................................................................................22
4.9 Scope of supply...............................................................................................................................................22
4.10 Dimensions and weights ................................................................................................................................23
5 Installation at Site................................................................................................................................ 24
5.1 Safety regulations...........................................................................................................................................24
5.2 Checks to be carried out prior to installation...............................................................................................25
5.2.1 Checking the operating data ............................................................................................................25
5.2.2 Preparing the place of installation ...................................................................................................25
5.2.3 Checking the coolant.........................................................................................................................25
5.2.4 Checking the direction of rotation ...................................................................................................26
5.3 Installing the pump set ..................................................................................................................................28
5.3.1 Stationary wet installation................................................................................................................28
5.3.2 Stationary dry installation.................................................................................................................35
5.4 Electrical system..............................................................................................................................................47
5.4.1 Information for planning the control system ..................................................................................47
5.4.2 Connection to power supply .............................................................................................................53

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6 Commissioning/Start-up/Shutdown................................................................................................... 56
6.1 Commissioning/Start-up.................................................................................................................................56
6.1.1 Prerequisites for commissioning/start-up .........................................................................................56
6.1.2 Prerequisites for commissioning/start-up .........................................................................................56
6.1.3 Priming and venting the pump set (dry installation only - installation types D and H)................57
6.1.4 Start-up...............................................................................................................................................57
6.1.5 Shutdown (dry installation only - installation types D and H) ........................................................59
6.2 Operating limits..............................................................................................................................................59
6.2.1 Frequency of starts.............................................................................................................................60
6.2.2 Operation on the power supply mains.............................................................................................60
6.2.3 Operation on a frequency inverter...................................................................................................60
6.2.4 Fluid handled .....................................................................................................................................61
6.3 Shutdown/storage/preservation ....................................................................................................................62
6.3.1 Measures to be taken for shutdown ................................................................................................62
6.4 Returning to service .......................................................................................................................................63
7 Servicing/Maintenance........................................................................................................................ 64
7.1 Safety regulations...........................................................................................................................................64
7.2 Maintenance/inspection.................................................................................................................................66
7.2.1 Supervision of operation (for installation types D and H only) ......................................................66
7.2.2 Inspection work..................................................................................................................................67
7.2.3 Coolant ...............................................................................................................................................71
7.3 Drainage/cleaning ..........................................................................................................................................76
7.4 Dismantling the pump set..............................................................................................................................76
7.4.1 General information/Safety regulations...........................................................................................76
7.4.2 Preparing the pump set.....................................................................................................................77
7.4.3 Dismantling the pump section ..........................................................................................................79
7.4.4 Dismantling the motor section .........................................................................................................82
7.5 Reassembling the pump set...........................................................................................................................83
7.5.1 General information/Safety regulations...........................................................................................83
7.5.2 Reassembling the pump section .......................................................................................................84
7.5.3 Leak testing........................................................................................................................................89
7.5.4 Checking the connection of motor/power supply ..........................................................................90
7.6 Tightening torques.........................................................................................................................................91
7.7 Spare parts stock.............................................................................................................................................92
7.7.1 Ordering spare parts..........................................................................................................................92
7.7.2 Recommended spare parts stock for 2 years' operation to DIN24296 ..........................................92
8 Trouble-shooting.................................................................................................................................. 93
9 Related Documents.............................................................................................................................. 94
9.1 General overview of part numbers ...............................................................................................................94
9.2 General assembly drawings with list of components...................................................................................95
9.2.1 Amarex KRT........................................................................................................................................95
9.2.2 Amarex KRT........................................................................................................................................99
9.3 Detail drawings.............................................................................................................................................100
9.3.1 Impeller type S .................................................................................................................................100
9.3.2 Impeller type E .................................................................................................................................101
9.3.3 Impeller type D.................................................................................................................................101
9.3.4 Impeller type K.................................................................................................................................102
9.3.5 Horizontal installation.....................................................................................................................103
9.3.6 Attachment elements ......................................................................................................................103
9.3.7 Sensors and terminals......................................................................................................................104
9.4 Flamepaths on explosion-proof motors......................................................................................................105
9.4.1 Amarex KRT......................................................................................................................................105
9.5 Illustration of the mechanical seal ..............................................................................................................106
9.6 Wiring diagrams ...........................................................................................................................................106
9.6.1 Planning the control system............................................................................................................106
9.6.2 Wiring diagram for one power cable 12G1.5/ 12G2.5..................................................................107
9.6.3 Wiring diagram for one power cable 7G4+5×1.5/ 7G6+5×1.5/ 7G10+5×1.5 ..............................108

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9.6.4 Wiring diagram for two power cables 12G1.5/ 12G2.5 plus 8G1.5..............................................109
9.6.5 Wiring diagram for two power cables 7G4+5×1.5/ 7G6+5×1.5/ 7G10+5×1.5 plus 8G1.5 ..........110
9.6.6 Wiring diagram for two power cables 4G16 plus 8G1.5 ...............................................................111
9.6.7 Wiring diagram for two power cables 7G6 plus 8G1.5 .................................................................112
9.6.8 Wiring diagram for two power cables 12G1.5/ 12G2.5 plus 12G1.5............................................113
9.6.9 Wiring diagram for two power cables 7G4+5×1.5/ 7G6+5×1.5/ 7G10+5×1.5 plus 12G1.5 ........114
9.6.10 Wiring diagram for three power cables 4G16 plus 8G1.5 plus 8G1.5...........................................115
9.6.11 Wiring diagram for three power cables 7G6 plus 8G1.5 plus 8G1.5.............................................116
10 EU Declaration of Conformity........................................................................................................... 117
11 Certificate of Decontamination......................................................................................................... 118
Index ................................................................................................................................................... 119

Glossary
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Glossary
Back pull-out unit
Pump without pump casing; partly completed
machinery
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
Discharge line
The pipeline which is connected to the discharge
nozzle
Flamepath
The surface of motor housing components which
form flameproof joints when an explosion-proof
motor is installed.
Hydraulic system
The part of the pump in which the kinetic energy
is converted into pressure energy
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

1 General
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1 General
1.1 Principles
This operating manual is valid for the type series and variants indicated on the front
cover (for details, refer to the table below)
Table1: Variants covered by this operating manual
Size Impeller type Material variant
Grey cast iron Industrial materials
G G1 G2 GH H C1 C2
40-252 F, K F, K F, K F, K F, K F, K F, K F, K
80-252 F F F F F F F F
80-253 E, F, K E, F, K F, K F, K F, K F, K F, K F, K
80-315 D D D - - - - -
80-315 K K K K K - - -
80-317 D D D - - - - -
80-317 F F F F F - - -
100-253 D D D - - - - -
100-253 E, K E, K K K K K K K
100-254 F, K F, K F, K F, K F, K F, K F, K F, K
100-315 D D D - - - - -
100-316 D D D - - - - -
100-316 F, K F, K F, K F, K F, K F, K F, K F, K
100-317 E E - - - - - -
100-400 K K K - K - K K
100-401 E, F, K E, F, K F, K - F, K F, K F, K F, K
150-253 D D D - - - - -
150-315 D D D - - - - -
150-315 F F F F F F F F
150-317 E, K E, K K K K K K K
150-400 D D D - - - - -
150-400 K K K K K K K K
150-401 D D D - - - - -
150-401 E, F E, F F - F F F F
150-403 K K K K K K K K
151-403 K K K K K K K K
200-315 D D D - - - - -
200-315 K K K K K K K K
200-316 K K K K K K K K
200-317 K K K K K - - -
200-318 K K K K K - - -
200-400 D D D - - - - -
200-401 E E - - - - - -
200-402 K K K K K K K K
200-403 K K K K K K K K
250-400 D D D - - - - -
250-401 K K K K K K K K
250-403 K K K K K K K K
300-400 D D D - - - - -
300-400 K K K K K K K K

1 General
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Size Impeller type Material variant
Grey cast iron Industrial materials
G G1 G2 GH H C1 C2
300-401 K K K K K K K K
300-403 K K K K K K K K
The operating 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 facility 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. (ðSection2.3,Page11)
1.4 Other applicable documents
Table2: Overview of other applicable documents
Document Content
Data sheet Technical data of the pump set
General arrangement drawing/
outline drawing
Mating dimensions, installation dimensions
and weights of the pump set
Hydraulic characteristic curve Characteristic curves showing head, flow rate,
efficiency and power input
General assembly drawing1) Sectional drawing of the pump set with part
numbers
Sub-supplier product literature1) Operating manuals and other product
literature describing accessories and
integrated machinery components
Spare parts lists1) Description of spare parts
Supplementary operating manual1) E.g. for special accessories
For accessories and/or integrated machinery components observe the relevant
manufacturer's product literature.
1) If agreed to be included in the scope of supply

1 General
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1.5 Symbols
Table3: Symbols used in this manual
Symbol Description
✓Conditions which need to be fulfilled before proceeding with the
step-by-step instructions
⊳Safety instructions
⇨Result of an action
⇨Cross-references
1.
2.
Step-by-step instructions
Note
Recommendations and important information on how to handle
the product
1.6 Key to safety symbols/markings
Table4: Definition of safety symbols/markings
Symbol Description
!DANGER
DANGER
This signal word indicates a high-risk hazard which, if not avoided,
will result in death or serious injury.
!WARNING
WARNING
This signal word indicates a medium-risk hazard which, if not
avoided, could result in death or serious injury.
CAUTION
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.

2 Safety
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2 Safety
!DANGER
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.
▪Comply with all the safety instructions given in the individual sections of this
operating manual.
▪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 and markings 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.
2.2 Intended use
The pump set must only be operated within the operating limits described in the
other applicable documents.
▪Only operate pump sets which are in perfect technical condition.
▪Do not operate partially assembled pump sets.
▪Only use the pump (set) to handle the fluids described in the data sheet or
product literature of the pump model.
▪Never operate the system without the fluid to be handled.
▪Observe the limits for continuous duty specified in the data sheet or product
literature (Qmin and Qmax) (to prevent damage such as shaft fracture, bearing
failure, mechanical seal damage, etc).
▪When untreated waste water is handled, the duty points in continuous operation
lie within 0.7 to 1.2×QBEP to minimise the risk of clogging/hardening.
▪Avoid duty points for continuous operation at very low speeds and small flow
rates (<0.7×QBEP).
▪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 system (prevention of
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.

2 Safety
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Free-flow impeller
(impeller type F/F-max)
Suitable for the following fluids:
fluids containing solids and stringy material as well as fluids with
entrapped air or entrapped gas
Closed single-channel impeller
(impeller type E/E-max)
Suitable for the following fluids:
fluids containing solids and stringy material
Closed multi-channel impeller
(impeller type K/K-max)
Suitable for the following fluids:
contaminated, solids-laden, non-gaseous fluids without stringy
material
Open, diagonal single-channel
impeller
(impeller type D)
Suitable for the following fluids:
fluids containing solid substances and long fibres
Prevention of foreseeable misuse
▪Observe the minimum flow velocities required to fully open the swing check
valves to prevent the reduction of pressure and risk of clogging.
(Contact the manufacturer for the required minimum flow velocities/loss
coefficients.)
▪Never exceed the permissible application and operating limits specified in the
data sheet or product literature regarding pressure, temperature, etc.
▪Observe all safety information and instructions in this manual.
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 operating 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 Safety
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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.
▪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 are
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. (ðSection6.3,Page62)
▪Decontaminate pumps which handle fluids posing a health hazard.
▪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. (ðSection6.1,Page56)
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
!DANGER
Always observe the information on explosion protection given in this section when
operating an explosion-proof pump set.
Sections of the manual marked by the symbol opposite apply to explosion-proof
pump sets also when temporarily operated outside of 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 an explosion-proof pump set to
EUDirective 2014/34/EU (ATEX).
Especially adhere to the sections in this manual marked with the symbol opposite.
The explosion-proof status of the pump set is only assured if the pump set is used in
accordance with its intended use.

2 Safety
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Never operate the pump set outside the limits stated in the data sheet and on the
name plate.
Prevent impermissible modes of operation.
2.9.1 Repair
Special regulations apply to repair work on explosion-proof pumps. Modifications or
alterations of the pump set can affect explosion protection and are only permitted
after consultation with the manufacturer.
Repair work at the flameproof joints must only be performed in accordance with the
manufacturer's instructions. Repair to the values in tables 1 and 2 of EN60079-1 is
not permitted.

3 Transport/Storage/Disposal
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3 Transport/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
Improper transport
Danger to life from falling parts!
Damage to the pump set!
▷Use the attachment point provided for attaching the lifting accessory.
▷Never suspend the pump set by its power cable.
▷Use the lifting chain/rope included in the scope of supply exclusively for
lowering or lifting the pump set into/out of the pump sump.
▷Securely attach the lifting chain/rope to the pump and crane.
▷Use tested, marked and approved lifting accessories only.
▷Observe the regional transport regulations.
▷Observe the product literature supplied by the lifting accessory manufacturer.
▷The load-carrying capacity of the lifting accessory must be higher than the
weight indicated on the name plate of the pump set to be lifted. Take into
account any additional system components to be lifted.
WARNING
Incorrect handling of the power cable
Personal injury and damage to property!
▷Secure the power cables against falling down.
▷Avoid power cables being laid on surfaces without fastening.
▷When moving the pump set keep at a safe distance from the power cables.
To transport the pump set suspend it from the lifting tackle as shown.
1) 2)
Fig.1: Transporting the pump set 1) Vertical installation [K and D] 2) Horizontal
installation [H]

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3.2.1 Placing the pump set down
WARNING
Incorrect positioning/placing down
Personal injury and damage to property!
▷Position the pump set vertically with the motor on top.
▷Use appropriate means to secure the pump set against tilting and tipping over.
▷Refer to the weights given in the data sheet/on the name plate.
WARNING
Incorrect handling of the power cable
Personal injury and damage to property!
▷Secure the power cables against falling down.
▷Avoid power cables being laid on surfaces without fastening.
▷When moving the pump set keep at a safe distance from the power cables.
WARNING
Improper placing of pump sets in a vertical/horizontal position
Personal injury and damage to property!
▷Use appropriate means to secure the pump set against tilting or tipping over.
▷If possible, use two pieces of lifting equipment when handling large pump sets
(using the attachment point provided on the motor and the discharge nozzle).
▷Secure the power cables against falling down.
▷Use additional supports for the transport holder to secure it against tilting.
▷Maintain adequate safety distance during lifting operations.
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.
WARNING
Placing the pump set on unsecured and uneven surfaces
Personal injury and damage to property!
▷Always place the pump set on a solid and level surface with the pump set in a
vertical position and the motor on top.
▷Only place the pump set on a surface of sufficient load-carrying capacity.
▷Use appropriate means to secure the pump set against tilting or tipping over.
CAUTION
Improper transport/positioning of pump sets with cooling system
Damage to the cooling system!
▷Never place the pump set on the cooling jacket or fasten it by the cooling
system.

3 Transport/Storage/Disposal
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Installation typeH:
The pump set has a separate support foot.
Installation types K and D:
It may be necessary to place the pump set down in a horizontal position during
maintenance or installation.
1
2
Fig.2: Placing down a pump set with a support foot
1 Integrated support foot 2 Wooden support
For placing down the pump set observe the following:
▪Integrated support foot (1)
– Place the pump set down on the integrated support feet (1) at the motor
housing cover and the pump casing.
▪Wooden support (2)
– Use wooden supports (2) to prevent any damage to the coating.
3.2.2 Placing the pump set in a vertical position
To change the pump set from a horizontal to a vertical position, attach lifting
equipment to the attachment point provided.
When the pump is pulled upright, the pump casing will act as a pivot. Place wooden
supports under the pivot points.
Pumps with a nominal discharge nozzle diameter of DN150 and above have a
threaded hole in the claw. If two cranes are available, a swivel eyebolt can be
screwed into the claw to pull the pump set upright. The direction of pull of the
swivel eyebolt at an angle of 90° to the bolt axis should be approved for the entire
pump set weight.
3.3 Storage/preservation
If commissioning is to take place some time after delivery, we recommend that the
following measures be taken:
CAUTION
Improper storage
Damage to the power cables!
▷Support the power cables at the cable entry to prevent permanent
deformation.
▷Only remove the protective caps from the power cables at the time of
installation.
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.

3 Transport/Storage/Disposal
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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.
Table5: Ambient conditions for storage
Ambient condition Value
Relative humidity 5% to 85% (non-condensing)
Ambient temperature -20°C to +70°C
▪Store the pump set under dry and vibration-free conditions, if possible in its
original packaging.
1. Spray-coat the inside wall of the pump casing, and in particular the impeller
clearance areas, with a preservative.
2. Spray preservative through the suction and discharge nozzles.
It is advisable to then close the pump nozzles (e.g. with plastic caps or similar).
NOTE
Observe the manufacturer's instructions for application/removal of the preservative.
3. Rotate the impeller by hand once every three months.
3.4 Return to supplier
1. Drain the pump as per operating instructions. (ðSection7.3,Page76)
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.
(ðSection11,Page118)
NOTE
If required, a blank certificate of decontamination can be downloaded from the
following web site: www.ksb.com/certificate_of_decontamination

3 Transport/Storage/Disposal
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3.5 Disposal
WARNING
Fluids, consumables and supplies posing a health hazard
Hazard to persons and the environment!
▷Collect and dispose of any preservatives, flushing liquids and 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 product.
Collect greases and other lubricants during dismantling.
2. Separate and sort the 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.
Electrical or electronic equipment marked with the adjacent symbol must not be
disposed of in household waste at the end of its service life.
Contact your local waste disposal partner for returns.
If the used electrical or electronic equipment contains personal data, the operator is
responsible for deleting it before the equipment is returned.

4 Description of the Pump (Set)
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4 Description of the Pump (Set)
4.1 General description
Horizontal or vertical single-stage submersible motor pump in close-coupled design,
with various next-generation impeller types, for wet or dry installation, stationary
installation, with energy-saving motor; models for use in potentially explosive
atmospheres available.
Pump for handling untreated waste water containing long fibres and solid
substances, liquids containing air/gas, and raw sludge, activated sludge and digested
sludge.
4.2 Designation
Example: Amarex KRT F 80 - 252 / 15 4 UFG - D IE3
Table6: Designation key
Code Description
Amarex KRT Type series
F Impeller type
80 Nominal discharge nozzle diameter [mm]
252 Maximum nominal impeller diameter [mm]
15 Motor size
4 Number of motor poles
UF Motor version
UF Non-explosion-proof, for fluid temperatures up to 40°C,
ambient temperatures up to 55°C
XF Explosion protection II2G Ex db h IIB T3 Gb, for fluid
temperatures up to 40°C, ambient temperatures up to
55°C
G Material variant
G Standard variant, grey cast iron
G1 Like G, with impeller made of duplex stainless steel
G2 Like G, with impeller made of white cast iron
D Installation type
IE3 Motor efficiency classification
2) No efficiency classification
IE3 Efficiency classification3)
4.3 Product information
4.3.1 Product information as per Regulation No. 1907/2006(REACH)
For information as per chemicals Regulation (EC) No. 1907/2006 (REACH), see http://
www.ksb.com/reach.
2) Blank
3) IEC60034-30 standard not binding for submersible motor pumps. Efficiencies calculated/determined according to the
measurement method specified in IEC60034-2. The marking is used for submersible motors that achieve efficiency levels
similar to those of standardised motors acc. to the IEC60034-30 standard.

4 Description of the Pump (Set)
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4.4 Name plate
KSB SAS
F-59320 Sequedin
KSB SAS
F-59320 Sequedin
TYPE
No.
Q 120 m
3
/ h
H 12 m 2019
TEMP. MAX. 40 °C 250 kg
Motor IP 68 SUBM. MAX. 30 m
CLASS H
KB16MN04-170 3 ~
M.-No. 123456
P
2
11,0 kW 400 V
50
Hz
cos φ 0.80
1470 min
-1
22,6 A
I A /I N
6,8
S1
0081
II2G Ex db h IIB T3 Gb
WARNUNG - NICHT UNTER SPANNUNG öFFNEN
WARNING - DO NOT OPEN WHEN ENERGIZED
AVERT ISSEMENT - NE PAS OU VRIR SOUS TENSION
Mat. No. 39024022 ZN 3826 – M 50
TYPE
Amarex KRT F 80-252/154 UFG-S IE3
No. 9971xxxx56/000100
Q 120 m
3
/ h
H 12 m 2019
TEMP. MAX. 40 °C 250 kg
Motor IP 68 SUBM. MAX. 30 m
CLASS H
KB16MN04-170 3 ~
M.-No. 123456
P
2
11,0 kW
400
V
50
Hz
cos φ 0.80
1470 min
-1
22,6 A
I A /I N
6,8
S1
WARNUNG - NICHT UNTER SPANNUNG öFFNEN
WARNING - DO NOT OPEN WHEN ENERGIZED
AVERT ISSEMENT - NE PAS OU VRIR SOUS TENSION
Mat. No. 39024022 ZN 3826 – M 51
II2G Ex db IIB T3 Gb IBExU15ATEX1102
Amarex KRT F 80-252/154 XFG-S IE3
9971xxxx56/000100
1
a) b)
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
22
21
Fig.3: Name plate (example) a) for non-explosion-proof model, b) for explosion-proof model
1 Designation 2 KSB order number
3 Flow rate 4 Maximum fluid temperature and ambient
temperature
5 Total weight 6 Enclosure
7 Motor type 8 Rated power
9 Rated speed 10 Rated voltage
11 Rated current 12 Head
13 Year of construction 14 Maximum submergence
15 Thermal class of winding insulation 16 Motor number
17 Power factor at rated operating point 18 Duty cycle
19 Rated frequency 20 Starting current ratio
21 ATEX marking of submersible motor 22 ATEX marking of pump set
4.5 Design details
Design
▪Fully floodable submersible motor pump
▪Not self-priming
▪Close-coupled design
Impeller type
▪Various application-oriented impeller types
Shaft seal
▪Double cartridge seal with liquid reservoir
▪Leakage chamber
Bearings
▪Grease-packed bearings sealed for life
▪Maintenance-free
Drive
▪Three-phase asynchronous squirrel-cage motor
▪Type of protection Ex db IIB (applies to explosion-proof pump sets only)