KSB Amarex KRT Istruzioni per l'installazione
Submersible Motor Pump
Amarex KRT
Sizes DN 50 to DN 80
Motor Sizes
2-pole: 012 to 032
4-pole: 014 to 034
Material Variants H, C1, C2
Installation/Operating
Manual
Mat. No.: 01047331
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 Aktiengesellschaft, Frankenthal 28.06.2013
Contents
Glossary .................................................................................................5
1 General ..................................................................................................6
1.1 Principles ...........................................................................................................6
1.2 Installation of partly completed machinery .................................................... 6
1.3 Target group ..................................................................................................... 6
1.4 Other applicable documents ............................................................................ 6
1.5 Symbols .............................................................................................................6
2 Safety .....................................................................................................8
2.1 Key to safety symbols/markings ....................................................................... 8
2.2 General .............................................................................................................. 8
2.3 Intended use .....................................................................................................8
2.4 Personnel qualification and training ............................................................. 10
2.5 Consequences and risks caused by non-compliance with these operating
instructions ...................................................................................................... 10
2.6 Safety awareness ............................................................................................10
2.7 Safety information for the operator/user ..................................................... 10
2.8 Safety information for maintenance, inspection and installation work ..... 10
2.9 Unauthorised modes of operation ................................................................11
2.10 Explosion protection ...................................................................................... 11
3 Transport/Temporary Storage/Disposal .............................................12
3.1 Checking the condition upon delivery .......................................................... 12
3.2 Transport ......................................................................................................... 12
3.3 Storage/Preservation ...................................................................................... 13
3.4 Return to supplier ........................................................................................... 14
3.5 Disposal ...........................................................................................................14
4 Description of the Pump (Set) ............................................................15
4.1 General description ........................................................................................ 15
4.2 Designation ..................................................................................................... 15
4.3 Name plate ...................................................................................................... 15
4.4 Design details .................................................................................................. 15
4.5 Types of installation .......................................................................................16
4.6 Configuration and function ........................................................................... 17
4.7 Scope of supply ............................................................................................... 17
4.8 Dimensions and weights ................................................................................18
5 Installation at Site ...............................................................................19
5.1 Safety regulations ........................................................................................... 19
5.2 Checks to be carried out prior to installation ............................................... 19
5.3 Installing the pump set .................................................................................. 21
5.4 Electrical system .............................................................................................. 26
Contents
Amarex KRT 3 of 60
6 Commissioning/Start-up/Shutdown ...................................................32
6.1 Commissioning/start-up ................................................................................. 32
6.2 Operating limits .............................................................................................. 33
6.3 Shutdown/storage/preservation .................................................................... 35
6.4 Returning to service .......................................................................................36
7 Servicing/Maintenance .......................................................................37
7.1 Safety regulations ........................................................................................... 37
7.2 Servicing/inspection ........................................................................................ 38
7.3 Drainage/cleaning ..........................................................................................41
7.4 Dismantling the pump set .............................................................................. 41
7.5 Reassembling the pump set ........................................................................... 43
7.6 Tightening torques ......................................................................................... 47
7.7 Spare parts stock ............................................................................................. 47
8 Trouble-shooting ................................................................................49
9 Related Documents ............................................................................50
9.1 General assembly drawings ........................................................................... 50
9.2 Wiring diagram ............................................................................................... 53
9.3 Flamepaths on explosion-proof motors ........................................................ 54
9.4 Sectional drawings of the mechanical seal ...................................................55
10 EC Declaration of Conformity ............................................................56
11 Certificate of Decontamination .........................................................57
Index ....................................................................................................58
Contents
4 of 60 Amarex KRT
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
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
Glossary
Amarex KRT 5 of 60
1 General
1.1 Principles
This manual is supplied as an integral part of the type series and variants indicated
on the front cover. It 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
uniquely identify the pump (set) and serve as identification for all further business
processes.
In the event of damage, contact your nearest KSB service centre immediately 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 manual is aimed at the target group of trained and qualified specialist technical
personnel.
1.4 Other applicable documents
Table 1: Overview of other applicable documents
Document Contents
Data sheet Description of the technical data of the pump
set
General arrangement drawing/
outline drawing
Description of mating and installation
dimensions for the pump set, weights
Hydraulic characteristic curve Characteristic curves showing head, flow rate,
efficiency and power input
General assembly drawing1) Sectional drawing of the pump set
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 manuals1) E.g. for special accessories
For accessories and/or integrated machinery components observe the relevant
manufacturer's product literature.
1.5 Symbols
Table 2: 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) If agreed to be included in the scope of supply
1 General
6 of 60 Amarex KRT
Symbol Description
1.
2.
Step-by-step instructions
Note
Recommendations and important information on how to handle
the product
1 General
Amarex KRT 7 of 60
2 Safety
All the information contained in this section refers to hazardous situations.
2.1 Key to safety symbols/markings
Table 3: 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 EC Directive
94/9/EC (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.
2.2 General
This manual contains general installation, operating and maintenance instructions
that must be observed to ensure safe pump operation and prevent personal injury
and damage to property.
The safety information in all sections of this manual must be complied with.
This manual must be read and completely understood by the specialist personnel/
operators responsible prior to installation and commissioning.
The contents of this manual must be available to the specialist personnel at the site
at all times.
Information attached directly to the pump must always be complied with and be
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 manual.
2.3 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.
!DANGER
2 Safety
8 of 60 Amarex KRT
▪Never operate the pump set without the fluid to be handled.
▪Observe the limits for continuous operation specified in the data sheet or
product literature (Qmin2) and Qmax3)) (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 x Qopt4) to minimise the risk of clogging/hardening.
▪Avoid duty points for continuous operation at very low speeds and small flow
rates (<0.7 x Qopt4)).
▪Observe the maximum flow rates 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 set (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 indicated in
the table below.
Table 4: Applications of impeller types
Impeller type Suitable for the following fluids
Free-flow impeller
(impeller type F)
Fluids containing solids and stringy material
as well as fluids with entrapped air or gas
Closed multi-vane
impeller
(impeller type K)
Contaminated, solids-laden, non-gaseous
fluids without stringy material
Impeller with cutter
(impeller type S)
Faeces, domestic sewage and waste water
containing 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 operating limits specified in the data sheet and in
the product literature regarding pressure, temperature, etc.
▪Observe all safety information and instructions in this manual.
2) Minimum permissible flow rate
3) Maximum permissible flow rate
4) Best efficiency point
2 Safety
Amarex KRT 9 of 60
2.4 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.
2.5 Consequences and risks caused by non-compliance with these operating
instructions
▪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
2.6 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 and safety regulations
▪Explosion protection regulations
▪Safety regulations for handling hazardous substances
▪Applicable standards and laws
2.7 Safety information for the operator/user
▪The operator shall fit contact guards for hot, cold and moving parts and check
that the guards function properly.
▪Do not remove any 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.
2.8 Safety information for maintenance, inspection and installation work
▪Modifications or alterations of the pump are only permitted with the
manufacturer's prior consent.
▪Use only original spare parts or parts authorised by the manufacturer. The use of
other parts can invalidate any liability of the manufacturer for resulting damage.
2 Safety
10 of 60 Amarex KRT
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