KSB Vitastage Installation instructions

Hygienic Pump
Vitastage
Installation/Operating Manual

Legal information/Copyright
Installation/Operating Manual Vitastage
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 15/12/2017

Contents
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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...............................................................................................................9
2.5 Consequences and risks caused by non-compliance with this manual .........................................................9
2.6 Safety awareness ..............................................................................................................................................9
2.7 Safety information for the operator/user.....................................................................................................10
2.8 Safety information for maintenance, inspection and installation ..............................................................10
2.9 Unauthorised modes of operation................................................................................................................10
3 Transport/Temporary Storage/Disposal............................................................................................. 11
3.1 Checking the condition upon delivery..........................................................................................................11
3.2 Transport.........................................................................................................................................................11
3.3 Storage/preservation......................................................................................................................................11
3.4 Return to supplier...........................................................................................................................................12
3.5 Disposal ...........................................................................................................................................................13
4 Description of the Pump (Set)............................................................................................................. 14
4.1 General description ........................................................................................................................................14
4.2 Designation.....................................................................................................................................................14
4.3 Name plate......................................................................................................................................................15
4.4 Design details..................................................................................................................................................15
4.5 Configuration and function...........................................................................................................................16
4.6 Noise characteristics .......................................................................................................................................16
4.7 Scope of supply...............................................................................................................................................17
4.8 Dimensions and weights ................................................................................................................................17
5 Installation at Site................................................................................................................................ 18
5.1 Safety regulations...........................................................................................................................................18
5.2 Checks to be carried out prior to installation...............................................................................................18
5.3 Piping ..............................................................................................................................................................18
5.3.1 Connecting the piping.......................................................................................................................18
5.3.2 Permissible forces and moments at the pump nozzles....................................................................20
5.4 Enclosure/insulation .......................................................................................................................................20
5.5 Electrical system..............................................................................................................................................20
5.5.1 Operation on a frequency inverter...................................................................................................20
5.6 Electrical connection ......................................................................................................................................21
5.6.1 Setting the time relay ........................................................................................................................21
5.6.2 Connecting the motor .......................................................................................................................21
5.6.3 Earthing ..............................................................................................................................................22
5.7 Checking the direction of rotation................................................................................................................22
6 Commissioning/Start-up/Shutdown................................................................................................... 23
6.1 Commissioning/Start-up.................................................................................................................................23
6.1.1 Prerequisites for commissioning/start-up .........................................................................................23
6.1.2 Priming and venting the pump.........................................................................................................23
6.1.3 Start-up...............................................................................................................................................23
6.1.4 Checking the shaft seal......................................................................................................................24
6.1.5 Shutdown ...........................................................................................................................................25

Contents
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6.2 Operating limits..............................................................................................................................................25
6.2.1 Ambient temperature........................................................................................................................25
6.2.2 Frequency of starts.............................................................................................................................26
6.2.3 Cleaning in place (CIP) .......................................................................................................................26
6.2.4 Steaming in place (SIP) ......................................................................................................................27
6.2.5 Fluid handled .....................................................................................................................................27
6.3 Shutdown/storage/preservation ....................................................................................................................28
6.3.1 Measures to be taken for shutdown ................................................................................................28
6.4 Returning to service .......................................................................................................................................29
7 Servicing/Maintenance........................................................................................................................ 30
7.1 Safety regulations...........................................................................................................................................30
7.2 Servicing/inspection........................................................................................................................................31
7.2.1 Supervision of operation ...................................................................................................................31
7.2.2 Inspection work..................................................................................................................................31
7.3 Drainage/cleaning ..........................................................................................................................................32
7.4 Dismantling the pump set..............................................................................................................................32
7.4.1 General information/Safety regulations...........................................................................................32
7.4.2 Preparing the pump set.....................................................................................................................33
7.4.3 Removing the complete pump set from the piping ........................................................................33
7.4.4 Dismantling the pump.......................................................................................................................33
7.5 Reassembling the pump set...........................................................................................................................34
7.5.1 General information/Safety regulations...........................................................................................34
7.5.2 Reassembling the pump ....................................................................................................................34
7.6 Spare parts stock.............................................................................................................................................35
7.6.1 Ordering spare parts..........................................................................................................................35
7.6.2 Recommended spare parts stock for 2 years' operation to DIN24296...........................................35
8 Trouble-shooting.................................................................................................................................. 36
9 Related Documents.............................................................................................................................. 38
9.1 General assembly drawing with list of components, Vitastage 05/1 - 05/8 - horizontal installation........38
9.2 General assembly drawing with list of components, Vitastage 05/1 - 05/8 - vertical installation .............39
10 EU Declaration of Conformity............................................................................................................. 40
11 Certificate of Decontamination........................................................................................................... 41
Index ..................................................................................................................................................... 42

Glossary
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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.
CIP (cleaning in place)
Procedure during which the inside of the pump is
cleaned with a cleaning agent. The pump does not
need to be dismantled.
Discharge line
The pipeline which is connected to the discharge
nozzle
Hydraulic system
The part of the pump in which the kinetic energy
is converted into pressure energy
Noise characteristics
The noise characteristics are indicated as surface
sound pressure level in dB(A).
Pump
Machine without drive, additional components or
accessories
Pump set
Complete pump set consisting of pump, drive,
additional components and accessories
SIP (steaming in place)
Procedure during which the inside of the pump is
sterilised with steam. The pump does not need to
be dismantled.
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 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.
Observe the noise characteristics, indicated as surface sound pressure level.
(ðSection4.6,Page16)
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2.4,Page9)
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
Drawing of auxiliary connections Description of auxiliary connections
Hydraulic characteristic curve Characteristic curves showing head, NPSH
required, efficiency and power input
General assembly drawing1) Sectional drawing of the pump
Sub-supplier product literature1) Operating manuals and other product literature
describing accessories and integrated machinery
components
Spare parts lists1) Description of spare parts
Piping layout1) Description of auxiliary piping
List of components1) Description of all pump components
Drawing for assembly1) Sectional drawing of the installed shaft seal
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
1) If agreed upon in scope of supply

1 General
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Symbol Description
⇨Cross-references
1.
2.
Step-by-step instructions
Note
Recommendations and important information on how to handle
the product

2 Safety
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2 Safety
!DANGER
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 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.
2.2 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.
2.3 Intended use
▪The pump (set) must only be operated within the operating limits described in
the other applicable documents. (ðSection1.4,Page6)
▪Only operate pumps/pump sets which are in perfect technical condition.
▪Do not operate the pump (set) in partially assembled condition.

2 Safety
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▪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.
Prevention of foreseeable misuse
▪Never open the discharge-side shut-off elements further than permitted.
–The maximum flow rates specified in the product literature or data sheet
would be exceeded.
–Risk of cavitation damage
▪Never exceed the permissible operating limits specified in the data sheet or
product literature regarding pressure, temperature, etc.
▪Observe all safety information and instructions in this manual.
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 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
2.6 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 regulations and safety regulations
▪Explosion protection regulations
▪Safety regulations for handling hazardous substances
▪Applicable standards, directives and laws

2 Safety
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2.7 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
▪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.
▪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 casing 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28)
▪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23)
2.9 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.
(ðSection2.3,Page8)

3 Transport/Temporary Storage/Disposal
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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.
▷Give due attention to the weight data and the centre of gravity.
▷Observe the applicable local health and safety regulations.
▷Use suitable, permitted lifting accessories, e.g. self-tightening lifting tongs.
CAUTION
Deformation of motor shroud during transport
Damage to the pump set!
▷Remove motor shroud, if included in scope of supply, for transport.
To transport the pump/pump set suspend it from the lifting tackle as shown.
Table4: Transporting the pump (set)
Without motor foot Motor foot
Ball feet Vertical installation
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.

3 Transport/Temporary Storage/Disposal
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CAUTION
Damage during storage due to humidity, dirt, or vermin
Corrosion/contamination of the pump (set)!
▷For outdoor storage cover the packed or unpacked pump (set) and accessories
with waterproof material.
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. (ðSection6.3.1,Page28)
3.4 Return to supplier
1. Prior to returning the product to the supplier, flush and clean it, particularly if it
has been used in noxious, explosive, hot or other hazardous fluids.
2. If the product has been used in fluids whose residues could lead to corrosion
damage in the presence of atmospheric humidity or could ignite upon contact
with oxygen, the product must also be neutralised and treated with anhydrous
inert gas to ensure drying.
3. Always complete and enclose a certificate of decontamination when returning
the product. (ðSection11,Page41)
Indicate any safety measures and decontamination measures taken.
NOTE
If required, a blank certificate of decontamination can be downloaded from the
following web site: www.ksb.com/certificate_of_decontamination

3 Transport/Temporary Storage/Disposal
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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.

4 Description of the Pump (Set)
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4 Description of the Pump (Set)
4.1 General description
▪Hygienic pump
▪Multistage centrifugal pump in ring-section design
Pump for handling fluids which are not chemically aggressive, are free from solids
and do not require hermetic sealing.
Table5: Installation type
Installation type Illustration Description
B▪Horizontal close-coupled pump
▪Axial suction nozzle
▪Radial discharge nozzle
BM ▪Horizontal close-coupled pump
▪Mounted on motor feet
▪Axial suction nozzle
▪Radial discharge nozzle
V▪Vertical close-coupled pump
▪Axial suction nozzle
▪Radial discharge nozzle
All pumps of this type series are fitted with standardised mechanical seals to
EN12756. This ensures reliable operation and interchangeability.
When different standardised mechanical seals are used, verify the axial length of the
seal.
Type and material of the mechanical seal are specifically selected to match the nature
and composition of the fluid to be handled.
NOTE
Before using the pump for any fluids different to those originally specified, check
that the mechanical seals and joint rings are suitable for that fluid.
If certified seal types or materials are used, make sure that any replacement seals
used also meet the certification requirements.
4.2 Designation
Example: Vitastage 10/3/75 2 B T
Table6: Designation key
Code Description
Vitastage Type series
10 Size
3 Number of stages

4 Description of the Pump (Set)
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Code Description
75 Motor rating (7.5kW × 10)
2 Number of poles
B Installation type
T Seal design
4.3 Name plate
VITASTAGE 10/3/75 2 B T
E-Nr
Nr
H 90 m
Q 15 m3/h
Jahr 2010
n 2900 1/min
1
2
4
3
6
7
5
Johann-Klein-Straße 9
Deutschland
67227 Frankenthal
KSB SE & Co. KGaA
Fig.1: Vitastage name plate (example)
1 Type series, size and version 2 KSB order number
3 Manufacturer's No. 4 Flow rate
5 Head 6 Speed
7 Year of construction
4.4 Design details
Design
▪Standard design with materials to Regulation (EC) No.1935/2004
Design
▪High-pressure centrifugal pump
▪Ring-section design
▪Multistage
Installation
▪Horizontal installation/ vertical installation
Impeller type
▪Closed radial impeller with multiply curved vanes
Shaft seal
▪Standardised mechanical seal to EN12756
Drive
▪Self-cooling IEC squirrel cage motor
▪Winding 50Hz, 230V/400V up to 4kW
▪Winding 50Hz, 400V/690V from 5.5kW
▪Type of construction B5/B35
▪Enclosure IP55
▪Thermal class F
▪Other motors on request

4 Description of the Pump (Set)
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4.5 Configuration and function
1
2
3
4
5
6
7
8
9
10
Fig.2: Sectional drawing of Vitastage
1 Suction nozzle 2 First impeller
3 Stage casing 4 Diffuser
5 Last impeller 6 Discharge casing
7 Motor 8 Shaft seal
9 Discharge nozzle 10 Pump foot
Design The pump is installed in either a horizontal or a vertical position. It is designed with
an axial fluid inlet and a radial fluid outlet. The hydraulic system is fitted on an
extended motor shaft and the casing is directly bolted to the motor.
Function The fluid enters the casing via the suction nozzle (1) and is accelerated outward in a
cylindrical flow by the first impeller (2). In the flow passage of the stage casing (3)
the kinetic energy of the fluid is converted into pressure energy. The fluid is pumped
to the next impeller via the diffuser (4). This process is repeated in all stages until the
fluid has passed the last impeller (5). The fluid is then pumped through the discharge
casing (6) to the discharge nozzle (9), where it leaves the pump. The drive shaft
enters the casing at the rear of the last impeller (11). The motor (7) is bolted to the
casing. The shaft passage through the casing is sealed by a dynamic shaft seal (8).
Pumps installed horizontally are mounted on motor feet, whereas vertically installed
pumps are mounted on a pump foot (10).
Sealing The pump is sealed by a standardised mechanical seal.
4.6 Noise characteristics
Table7: Surface sound pressure level LpA
2)
Size Motor rating Noise characteristic
[kW] [dB]
VS 05/1 1,5 69 - 70,2
VS 05/2 1,5 69,5 - 71
2) Measured at a distance of 1m, 1.6m above the installation surface

4 Description of the Pump (Set)
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Size Motor rating Noise characteristic
[kW] [dB]
VS 05/3 2,2 69 - 71,4
VS 05/4 3 68 - 71,9
VS 05/5 4 72,1 - 74,1
VS 05/6 5,5 73 - 74,6
VS 05/7 5,5 75,2 - 79,1
VS 05/8 5,5 76,5 - 79,4
4.7 Scope of supply
Depending on the model, the following items are included in the scope of supply:
▪Pump
▪Electric motor
▪Installation parts
4.8 Dimensions and weights
For dimensions and weights please refer to the general arrangement drawing/outline
drawing of the pump/pump set.

5 Installation at Site
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5 Installation at Site
5.1 Safety regulations
DANGER
Installation in potentially explosive atmospheres
Explosion hazard!
▷Never install the pump in potentially explosive atmospheres.
▷Observe the information given in the data sheet and on the name plates of the
pump system.
5.2 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 EN206-1.
▷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.
5.3 Piping
5.3.1 Connecting the piping
DANGER
Impermissible loads acting on the pump nozzles
Danger to life from leakage of 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.
▷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.

5 Installation at Site
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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.
üSuction lift lines have been laid with a rising slope, suction head lines with a
downward slope towards the pump.
üA 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.
üThe nominal diameters of the pipelines are equal to or greater than the nominal
diameters of the pump nozzles.
üAdapters to larger nominal diameters are designed with a diffuser angle of
approx. 8° to avoid excessive pressure losses.
üThe 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 (ðSection7.2.2.1,Page32) .
3. Check that the inside of the pump is free from any foreign objects. Remove any
foreign objects.
4. If required, install a filter in the piping (see drawing: Filter in the piping).
1
2
Fig.3: Filter in the piping
1 Differential pressure gauge 2 Filter
NOTE
Use a filter with laid-in wire mesh (mesh width 0.5mm, wire diameter 0.25mm) of
corrosion-resistant material.
Use a filter with a filter area three times the cross-section of the piping.
Conical filters have proved suitable.
5. Connect the pump nozzles to the piping.

5 Installation at Site
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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.
5.3.2 Permissible forces and moments at the pump nozzles
No piping-induced forces and moments (from warped pipelines or thermal
expansion, for example) must act on the pump.
5.4 Enclosure/insulation
WARNING
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 system
5.5.1 Operation on a frequency inverter
The pump set is suitable for operation on a frequency inverter as per IEC60034-17.
DANGER
Incorrect selection and setting of the frequency inverter
Explosion hazard!
▷Observe the following information on selecting and setting a frequency
inverter.
Selection When selecting a frequency inverter, check the following details:
▪Data provided by the manufacturer
▪Electrical data of the pump set, particularly the rated current
▪Only voltage source inverters (VSI) with pulse width modulation (PWM) and
carrier frequencies between 1 and 16kHz are suitable.
Setting Observe the following instructions for setting a frequency inverter:
▪Set the current limit to max. 1.2 times the rated current. The rated current is
indicated on the name plate.
Start-up Observe the following instructions for starting the frequency inverter:
▪Ensure short start ramps (maximum 5 seconds).
▪Only start variable speed control after 2minutes at the earliest.
Pump start-up with long start ramps and low frequency may cause clogging.
Operation Observe the following limits during operation on a frequency inverter:
▪Only utilise up to 95% of the motor rating P2 indicated on the name plate.
▪Frequency range 25 to 50Hz
Electromagnetic
compatibility
Operation on a frequency inverter produces interference emissions whose level varies
depending on the inverter used (type, interference suppression, make). To prevent
the drive system, consisting of a submersible motor and a frequency inverter, from