KSB Magnochem Operating Manual
Mag-drive Pump
Magnochem
Installation/Operating Manual
Legal information/Copyright
Installation/Operating Manual Magnochem
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 06/12/2016
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Contents
Glossary .................................................................................................................................................. 6
1 General.................................................................................................................................................... 7
1.1 Principles ...........................................................................................................................................................7
1.2 Installation of partly completed machinery....................................................................................................7
1.3 Target group.....................................................................................................................................................7
1.4 Other applicable documents............................................................................................................................7
1.5 Symbols .............................................................................................................................................................7
2 Safety...................................................................................................................................................... 9
2.1 Key to safety symbols/markings.......................................................................................................................9
2.2 General..............................................................................................................................................................9
2.3 Intended use ...................................................................................................................................................10
2.4 Personnel qualification and training.............................................................................................................10
2.5 Consequences and risks caused by non-compliance with this manual .......................................................10
2.6 Safety awareness ............................................................................................................................................11
2.7 Safety information for the operator/user.....................................................................................................11
2.8 Safety information for maintenance, inspection and installation ..............................................................11
2.9 Unauthorised modes of operation................................................................................................................11
2.10 Explosion protection ......................................................................................................................................11
2.10.1 Marking ..............................................................................................................................................12
2.10.2 Temperature limits.............................................................................................................................12
2.10.3 Monitoring equipment......................................................................................................................12
2.10.4 Operating limits .................................................................................................................................13
2.11 Magnetic coupling..........................................................................................................................................14
3 Transport/Temporary Storage/Disposal............................................................................................. 15
3.1 Checking the condition upon delivery..........................................................................................................15
3.2 Transport.........................................................................................................................................................15
3.3 Storage/preservation......................................................................................................................................16
3.4 Return to supplier...........................................................................................................................................16
3.5 Disposal ...........................................................................................................................................................17
4 Description............................................................................................................................................ 18
4.1 General description ........................................................................................................................................18
4.2 Designation.....................................................................................................................................................18
4.3 Name plate......................................................................................................................................................18
4.4 Design details..................................................................................................................................................19
4.5 Configuration and function...........................................................................................................................21
4.6 Operating modes............................................................................................................................................22
4.7 Noise characteristics .......................................................................................................................................22
4.8 Scope of supply...............................................................................................................................................23
4.9 Dimensions and weights ................................................................................................................................23
5 Installation at Site................................................................................................................................ 24
5.1 Safety regulations...........................................................................................................................................24
5.2 Checks to be carried out prior to installation...............................................................................................24
5.3 Installing the pump set ..................................................................................................................................24
5.3.1 Installation on the foundation..........................................................................................................25
5.3.2 Installation without foundation .......................................................................................................26
5.4 Piping ..............................................................................................................................................................26
5.4.1 Connecting the piping.......................................................................................................................26
5.4.2 Permissible forces and moments at the pump nozzles....................................................................28
5.4.3 Auxiliary connections.........................................................................................................................29
5.5 Enclosure/insulation .......................................................................................................................................30
5.6 Checking the coupling alignment .................................................................................................................31
5.7 Aligning the pump and motor ......................................................................................................................32
5.7.1 Motors with adjusting screw.............................................................................................................33
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5.7.2 Motors without adjusting screw ....................................................................................................... 33
5.8 Electrical connection ......................................................................................................................................34
5.8.1 Earthing ..............................................................................................................................................36
5.8.2 Connecting the motor .......................................................................................................................37
5.9 Checking the direction of rotation................................................................................................................37
6 Commissioning/Start-up/Shutdown................................................................................................... 38
6.1 Commissioning/start-up .................................................................................................................................38
6.1.1 Prerequisites for commissioning/start-up ......................................................................................... 38
6.1.2 Filling in the lubricant .......................................................................................................................38
6.1.3 Priming and venting the pump.........................................................................................................40
6.1.4 Final check ..........................................................................................................................................41
6.1.5 Cooling water supply of heat exchanger (for dead-end configuration only)................................42
6.1.6 Heating ...............................................................................................................................................42
6.1.7 Heating up the pump (set) and keeping it warm ............................................................................ 43
6.1.8 Start-up............................................................................................................................................... 43
6.1.9 Shutdown ...........................................................................................................................................46
6.2 Operating limits..............................................................................................................................................46
6.2.1 Ambient temperature........................................................................................................................47
6.2.2 Frequency of starts.............................................................................................................................47
6.2.3 Fluid handled .....................................................................................................................................48
6.2.4 Leakage barrier (optional) ................................................................................................................49
6.3 Shutdown/storage/preservation ....................................................................................................................50
6.3.1 Measures to be taken for shutdown ................................................................................................50
6.4 Returning to service .......................................................................................................................................50
7 Servicing/Maintenance........................................................................................................................ 51
7.1 Safety regulations...........................................................................................................................................51
7.2 Servicing/inspection........................................................................................................................................52
7.2.1 Supervision of operation ................................................................................................................... 52
7.2.2 Inspection work..................................................................................................................................54
7.2.3 Lubrication and lubricant change at rolling element bearings ......................................................57
7.3 Drainage/cleaning ..........................................................................................................................................59
7.4 Dismantling the pump set..............................................................................................................................60
7.4.1 General information/Safety regulations...........................................................................................60
7.4.2 Preparing the pump set..................................................................................................................... 61
7.4.3 Removing the motor..........................................................................................................................61
7.4.4 Removing the back pull-out unit ...................................................................................................... 61
7.4.5 Dismantling the back pull-out unit ..................................................................................................62
7.5 Reassembling the pump set...........................................................................................................................70
7.5.1 General information/Safety regulations...........................................................................................70
7.5.2 Installing the plain bearings..............................................................................................................71
7.5.3 Fitting the impeller ............................................................................................................................74
7.5.4 Fitting the containment shroud........................................................................................................75
7.5.5 Fitting the bearing bracket lantern .................................................................................................. 76
7.5.6 Fitting the rolling element bearings.................................................................................................78
7.5.7 Fitting the shaft seal – design with leakage barrier (optional) ......................................................79
7.5.8 Mounting the outer rotor on the drive shaft ..................................................................................82
7.5.9 Fitting the bearing bracket with the outer rotor ............................................................................83
7.5.10 Run-out check ....................................................................................................................................84
7.5.11 Installing the back pull-out unit .......................................................................................................85
7.5.12 Mounting the motor .........................................................................................................................85
7.6 Tightening torques.........................................................................................................................................86
7.7 Spare parts stock.............................................................................................................................................87
7.7.1 Ordering spare parts.......................................................................................................................... 87
7.7.2 Recommended spare parts stock for 2 years' operation to DIN24296...........................................87
8 Trouble-shooting.................................................................................................................................. 89
9 Related Documents.............................................................................................................................. 91
9.1 General assembly drawings ...........................................................................................................................91
9.2 Plain bearings arrangement ..........................................................................................................................98
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9.3 Positioning of locking elements and bearing bushes ................................................................................102
10 EU Declaration of Conformity........................................................................................................... 104
11 Certificate of Decontamination......................................................................................................... 105
Index ................................................................................................................................................... 106
Glossary
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Glossary
Back pull-out design
The complete back pull-out unit can be pulled out
without having to remove the pump casing from
the piping.
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.
Discharge line
The pipeline which is connected to the discharge
nozzle
Operating mode
Configuration of cooling and lubricating flow
through the magnetic coupling
Pool of pumps
Customers/operators’ pumps which are purchased
and stored regardless of their later use.
Pump
Machine without drive, additional components or
accessories
Pump set
Complete pump set consisting of pump, drive,
additional components and accessories
Suction lift line/suction head line
The pipeline which is connected to the suction
nozzle
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1 General
1.1 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
uniquely 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.
Noise characteristics (ðSection4.7,Page22)
1.2 Installation of partly completed machinery
To install partly completed machinery supplied by KSB refer to the sub-sections under
Servicing/Maintenance. (ðSection7.5.11,Page85)
1.3 Target group
This operating manual is aimed at the target group of trained and qualified specialist
technical personnel. (ðSection2.4,Page10)
1.4 Other applicable documents
Table1: 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 drawing Sectional drawing of the pump
Sub-supplier product literature1)Operating manuals and other product literature
describing accessories and integrated machinery
components
Spare parts lists
1)
Description of spare parts
Piping layout
1)
Description of auxiliary piping
List of components
1)
Description of all pump components
For accessories and/or integrated machinery components, observe the relevant
manufacturer's product literature.
1.5 Symbols
Table2: 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. Step-by-step instructions
1) If agreed upon in the scope of supply.
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Symbol Description
2.
Note
Recommendations and important information on how to handle
the product
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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
Table3: 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.
Warning: Strong magnetic field
In conjunction with one of the signal words this symbol indicates a
hazard involving magnetic fields and identifies information about
protection against magnetic fields.
Warning for persons with pacemaker
In conjunction with one of the signal words this symbol indicates a
hazard involving magnetic fields and identifies special information
for persons with a pacemaker.
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.
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2.3 Intended use
▪ The pump (set) must only be operated within the operating limits described in
the other applicable documents.
▪ Only operate pumps/pump sets which are in perfect technical condition.
▪ Do not operate the pump (set) in partially assembled condition.
▪ Only use the pump to handle the fluids described in the data sheet or product
literature of the pump model or variant.
▪ Never operate the pump without the fluid to be handled.
▪ Observe the minimum flow rates indicated in the data sheet or product literature
(to prevent overheating, bearing damage, etc).
▪ Observe the maximum flow rates indicated in the data sheet or product
literature (to prevent overheating, 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 this operating manual 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
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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, directives 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
▪ 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.
▪ Any work on the pump set shall only be performed 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. (ðSection6.1.9,Page46) (ðSection6.3,Page50)
▪ Decontaminate pumps which handle fluids posing a health hazard.
(ðSection7.3,Page59)
▪ As soon as the work has been completed, re-install and/or re-activate any safety-
relevant and protective devices. Before returning the product to service, observe
all instructions on commissioning. (ðSection6.1,Page38)
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.
2.10 Explosion protection
!
DANGER
Always observe the information on explosion protection given in this section when
operating the product in potentially explosive atmospheres.
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Only pumps/pump sets marked as explosion-proof and identified as such in the data
sheet may be used in potentially explosive atmospheres.
Special conditions apply to the operation of explosion-proof pump sets to EU
Directive 2014/34/EU (ATEX).
Especially adhere to the sections in this manual marked with the Ex symbol and the
following sections, to (ðSection2.10.4,Page13)
The explosion-proof status of the pump set is only assured if the pump set is used in
accordance with its intended use.
Never operate the pump set outside the limits stated in the data sheet and on the
name plate.
Prevent impermissible modes of operation at all times.
2.10.1 Marking
Pump
The marking on the pump refers to the pump part only.
Example of such marking: II 2 G c TX
Refer to the data sheet for the applicable temperature class.
Shaft coupling
An EC manufacturer's declaration is required for the shaft coupling; the shaft
coupling must be marked accordingly.
Motor
The motor must be considered separately.
2.10.2 Temperature limits
In normal pump operation, the highest temperatures are to be expected at the
surface of the pump casing, in the area of the magnetic coupling and in the area of
the rolling element bearings.
The surface temperature at the pump casing corresponds to the temperature of the
fluid handled. If the pump is heated, the operator of the system is responsible for
observing the specified temperature class.
The surfaces in the bearing bracket area must be freely exposed to the atmosphere.
The temperature class specifies the maximum permissible temperature at the surface
of the pump set during operation. For the permissible operating temperature of the
pump in question and the temperature class refer to the data sheet.
If the pump is to be operated at a higher temperature, if there is no data sheet or if
the pump is part of a pool of pumps, contact KSB for the maximum permissible
operating temperature.
2.10.3 Monitoring equipment
The pump (set) must only be operated within the limits specified in the data sheet
and on the name plate.
If the system operator cannot warrant compliance with these operating limits,
appropriate monitoring devices must be used.
Check whether monitoring equipment is required to ensure that the pump set
functions properly.
Take into account the following risks when selecting suitable monitoring equipment:
Cooling flow interrupted
An insufficient cooling flow or failure of the cooling flow can be caused by the
following:
▪ Fluid properties
▪ Pressure or barrier fluid pressure too low
The following malfunctions may occur:
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Table4: Cooling flow malfunctions
Fault Operating mode
(ðSection4.6,Page22)
Internal
circulation
External
circulation
Low-boiling
fluids
Dead-end
configuration
Blocking of bores within the pump (e.g. casing cover or shaft) ✘ ✘ ✘ ✘
Blocking, clogging, gumming up of the piping (e.g. auxiliary feed lines) - ✘ - ✘
Blocking, clogging, gumming up of the filter (e.g. ring filter, main flow filter) ✘ ✘ ✘ -
Failure or insufficient heat exchanger performance - - - ✘
Failure or insufficient barrier fluid system function - ✘ - ✘
An insufficient cooling flow or failure of the cooling flow may lead to an
impermissible temperature rise.
Inner and outer rotor out of
synchronisation
Overloading, overheating or non-compliance with the design data may cause the
inner and the outer rotor to drop out of synchronisation. Thermal energy produced
inside the containment shroud or at the outer rotor may also result in an
impermissible temperature rise.
Leakage of fluid handled
If a defect in the containment shroud (rare defect) will result in leakage of a fluid
whose critical properties might pose a hazard to staff and the environment, leakage
monitoring must be provided in combination with a pump version with leakage
barrier. Any interaction of the fluid handled with the pump materials shall be taken
into consideration, if necessary.
Accessories available
The following equipment can be supplied by KSB on request:
▪ Temperature monitoring, metal containment shroud
– Pt100 resistance thermometer
– Mineral-insulated thermocouple
▪ Fill level monitoring as dry running protection
– Liquiphant level transmitter
▪ Monitoring for containment shroud leakage
– Liquiphant level transmitter
– Contact pressure gauge
– Pressure switch
– Pressure transducer
▪ Monitoring of pump power to detect dry running and/or asynchronous operation
of the magnetic coupling and to protect against overload operation
– Motor load monitor
▪ Other accessories on request
– Temperature monitoring of rolling element bearings by means of Pt100
resistance thermometer
2.10.4 Operating limits
The minimum flows indicated in (ðSection6.2.3.1,Page48) refer to water and
water-like fluids handled. Longer operating periods with these fluids and at the flow
rates indicated will not cause an additional increase in the temperatures at the pump
surface. However, if the physical properties of the fluids handled are different from
water, it is essential to check whether an additional heat build-up may occur and if
the minimum flow rate must therefore be increased. The calculation formula in
(ðSection6.2.3.1,Page48) can be used to check whether additional heat build-up
may lead to a dangerous temperature increase at the pump surface.
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2.11 Magnetic coupling
DANGER
Strong magnetic field in the area of the magnetic coupling or the individual
magnets
Danger of death for persons with pacemaker!
Interference with magnetic data carriers, electronic devices, components and
instruments!
Uncontrolled magnetic attraction forces between magnet-equipped components,
tools or similar!
▷ Keep a safety distance of at least 0.3 m.
Distance to assembled pumps:
The safety distance refers to magnet-equipped rotors not yet installed in pumps and
to magnets which have not been fitted.
In installed condition the magnetic field is fully shielded so that an assembled pump
does not pose a hazard as a result of magnetic fields (even to persons with
pacemaker), neither during standstill nor during operation.
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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 (as applicable) 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
Improper transport of complete back pull-out unit (with or without impeller)
Damage to the plain bearings!
▷ Use a suitable transport lock to prevent axial movement of the pump shaft
during transport.
To transport the pump/pump set or back pull-out unit suspend it from the lifting tackle
as shown.
Fig.1: Transporting the back pull-out unit
Fig.2: Transporting the pump
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≤ 90 °
Fig.3: Transporting the pump set
≤ 90 °
Fig.4: Transporting the pump on the baseplate
3.3 Storage/preservation
If commissioning is to take place some time after delivery, we recommend that the
following measures be taken for pump (set) storage.
CAUTION
Damage during storage by 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. (ðSection6.3.1,Page50)
3.4 Return to supplier
1. Drain the pump as per operating instructions. (ðSection7.3,Page59)
2. Always flush and clean the pump, particularly if it has been used for handling
noxious, explosive, hot or other hazardous fluids.
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3. If the pump set has handled fluids whose residues could lead to corrosion
damage in the presence of atmospheric humidity or could ignite upon contact
with oxygen, the pump set must also be neutralised, and anhydrous inert gas
must be blown through the pump to ensure drying.
4. Always complete and enclose a certificate of decontamination when returning
the pump (set).
Always indicate any safety and decontamination measures taken.
(ðSection11,Page105)
NOTE
If required, a blank certificate of decontamination can be downloaded from the
KSB web site at: www.ksb.com/certificate_of_decontamination
3.5 Disposal
WARNING
Fluids, 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 residues of the fluid
handled.
▷ Wear safety clothing and a protective mask, if required.
▷ Observe all legal regulations on the disposal of fluids posing a health hazard.
1. Dismantle the pump (set).
Collect greases and other lubricants during dismantling.
2. Separate and sort the pump materials, e.g. by:
- Metals
- Plastics
- Electronic waste
- Greases and other lubricants
3. Dispose of materials in accordance with local regulations or in another controlled
manner.
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4 Description
4.1 General description
▪ Standardised chemical mag-drive pump
Pump for handling aggressive, toxic, explosive, valuable, flammable, malodorous or
harmful fluids in the chemical, petrochemical and general industries.
4.2 Designation
Example: MACD050-032-2501CCHX1A
Table5: Key to the designation
Code Description
MACD Type series (full name: Magnochem)
050 Nominal suction nozzle diameter [mm]
032 Nominal discharge nozzle diameter [mm]
250 Nominal impeller diameter [mm]
1 Hydraulic system, e.g. 1 = low-flow hydraulic system
C Casing material, e.g. C = stainless steel
C Impeller material, e.g. C = stainless steel
H Additional code, e.g. H = heatable casing
X Special design
1 Nominal diameter of magnetic coupling, e.g. 1 = 85mm
A Effective length of magnetic coupling, e.g. A = 10mm
4.3 Name plate
MACD050-032-2501CCHX1A
P-No. 997125086300550001
Q 20 m
3
/h H 25 m
n 2955 1/min
KSB Aktiengesellschaft
67227 Frankenthal
Mat-No. 01 109 223 ZN 3804 - D 52 x 74
2013
0520-5-P-10000-31
1
2
5
4
3
6
7
8
Fig.5: Name plate (example)
1 Type series, size, material, magnetic
coupling size
2 Customer-specific information
(optional)
3 KSB order and order item number 4 Flow rate
5 Speed 6 Manufacturer's name and address
7 Year of construction 8 Head
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4.4 Design details
Design
▪ Volute casing pump
▪ Horizontal installation
▪ Back pull-out design
▪ Single-stage
▪ Meets the technical requirements to ISO 5199
▪ Dimensions and ratings to ISO2858
complemented by pumps of nominal diameters DN25, DN200 and DN250
Pump casing
▪ Single or double volute, depending on the pump size
▪ Radially split volute casing
▪ Volute casing with integrally cast pump feet
▪ Replaceable casing wear rings
▪ Heatable
▪ Draining facility
Impeller type
▪ Closed radial impeller with multiply curved vanes
▪ Discharge-side sealing clearance reduces axial thrust
Shaft seal
▪ Seal-less, with magnetic coupling
▪ Containment shroud as sealing element
▪ Optional: with leakage barrier
Casing cover variants
▪ Internal circulation
▪ Low-boiling fluids
▪ External circulation
– With the fluid handled
– With barrier fluid
▪ Dead-end configuration
In addition:
▪ Flushing connection
▪ Heatable
▪ Draining facility
▪ Internal ring filter or main flow filter
Bearings
Drive-end bearings:
▪ Radial ball bearings with internal clearance C3
▪ Grease-packed for life (high melting point grease)
▪ Optional: oil lubrication
Pump-end bearing:
▪ Hydrodynamic plain bearings
▪ Product-lubricated
2) Shaft seal ring, up to PN16 max.
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Table6: Bearings used
Type of lubrication Pump nominal
pressure
Leakage barrier
model
Nominal diameter
of magnetic
coupling
Bearing bracket Rolling element bearings
Pump end Drive end
[mm] 321.01 321.02
Grease-lubricated PN16/25/40 Not available or
shaft seal ring
2)
85 CS40 6209 ZZN C3 6209 ZZN C3
CS50
CS60
123 CS40 6209 ZZN C3 6209 ZZN C3
CS50
CS60
172 CS50 6209 ZZN C3 6209 ZZN C3
CS60
CS80 6212 ZZN C3 6212 ZZN C3
235 CS50 6212 ZZN C3 6212 ZZN C3
CS60
CS80
265 CS80 6212 ZZN C3 6212 ZZN C3
Oil-lubricated PN16/25/40 Not available or
shaft seal ring
2)
85 CS40 6209 NZ C3 6209 NZ C3
CS50
CS60
123 CS40 6209 NZ C3 6209 NZ C3
CS50
CS60
172 CS50 6209 NZ C3 6209 NZ C3
CS60
CS80 6212 NZ C3 6212 NZ C3
235 CS50 6212 NZ C3 6212 NZ C3
CS60
CS80
265 CS80 6212 NZ C3 6212 NZ C3
Automation
Automation options:
▪ PumpDrive
▪ PumpMeter
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4.5 Configuration and function
1 2 3 4 5
6 7
8
9
10
1112
13
14
15
16
18
17
20
19
Fig.6: Sectional drawing
1 Impeller 2 Discharge nozzle
3 Casing gasket 4,15 Circulation bore
5 Shroud gasket 6 Inner rotor
7 Outer rotor 8, 9 Rolling element bearings
10 Drive-end shaft 11, 16 Hydrodynamic plain bearings
12 Pump-end shaft 13 Containment shroud
14 Casing cover 17 Pump casing
18 Shaft bore 19 Suction nozzle
20 Clearance gap
Function
The fluid enters the pump axially via the suction nozzle (19) and is accelerated
outward by the rotating impeller (1). In the flow passage of the pump casing the
kinetic energy of the fluid is converted into pressure energy. The fluid is pumped to
the discharge nozzle (2), where it leaves the pump. The clearance gap (20) prevents
any fluid from flowing back from the casing to the suction nozzle.
Sealing
Mag-drive pumps are characterised by the absence of a dynamic shaft seal
(mechanical seal, gland packing). The fluid handled is sealed to atmosphere
exclusively by means of static sealing elements: a gasket (3) between the casing (17)
and the casing cover (14), and a joint ring (5) between the casing cover (14) and the
containment shroud (13). The driving torque is transmitted indirectly from the motor
to the pump shaft (12) via the magnetic coupling. The magnetic coupling basically
consists of the outer rotor (outer magnet assembly, 7) and the inner rotor (inner
magnet assembly, 6). The containment shroud (13) forms the shaft seal separating
the wetted from the dry pump section.
Magnetic coupling
Magnetic couplings with permanent magnets transmit the driving torque without
slip, i.e. the motor and the pump run at the same rotational speed. The driving
torque generated by the motor is transmitted from the outer rotor (7) to the inner
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rotor (6) via the magnetic field. It is part of the inner rotor assembly which runs in
product-lubricated bearings. The directly product-lubricated radial and axial plain
bearings (11, 16) are made of wear-resistant and chemically resistant silicon carbide.
The flow circulated through the magnetic coupling not only lubricates the bearings
but also dissipates heat losses caused by eddy currents in the metal containment
shroud wall. If a ceramic containment shroud is used, no eddy current losses will be
induced in the containment shroud wall. (ðSection4.6,Page22)
4.6 Operating modes
The operating mode defines the route the cooling and lubricating flow takes
through the magnetic coupling. Depending on the operating mode, the cooling and
lubricating flow is routed differently through the magnetic coupling. A distinction is
made between the following operating modes:
▪ Operating mode: internal circulation
In internal circulation operating mode, the fluid handled is used to lubricate the
plain bearings and to dissipate the heat generated by the magnetic coupling. The
difference in pressure results in a lubricating and cooling flow from the suction
to the pressure side. The fluid flows through bores provided in the casing cover
on the pressure side and returns to the suction side through an axial shaft bore.
▪ Operating mode: external circulation
In external circulation operating mode, the fluid used to lubricate the plain
bearings and to dissipate the heat generated by the magnetic coupling is fed
into the pump from outside (either from the discharge nozzle with or without a
main flow filter, or from an external fluid supply in the plant). Either the fluid
handled or another fluid can be used. With the external circulation variant, the
lubricating and cooling flow is fed into the pump via auxiliary connections at the
casing cover and flows back to the suction side via an axial shaft bore.
▪ Operating mode: low-boiling fluids
In low-boiling fluids operating mode, the fluid handled is used to lubricate the
plain bearings and to dissipate the heat generated by the magnetic coupling. The
lubricating and cooling flow is ensured by an integrated auxiliary impeller. The
fluid flows through bores provided in the casing cover on the pressure side and is
returned to the pressure side through bores in the casing cover. This operating
mode is particularly suitable for fluids which have a steep vapour pressure curve.
▪ Operating mode: dead end configuration
In dead-end configuration operating mode, either the fluid handled or an
external fluid is used to lubricate the plain bearings and to dissipate the heat
generated by the magnetic coupling. The lubricating and cooling flow is ensured
by an integrated auxiliary impeller in an almost closed circuit between the
magnetic coupling and a heat exchanger; the latter ensures that the heat
generated by the magnetic coupling is dissipated. The liquid flows into and out
of the pump via auxiliary connections at the casing cover. If pressurised barrier
fluid is used, a flow from the magnetic coupling to the main impeller is possible
but a return flow back to the magnetic coupling prevented.
4.7 Noise characteristics
Table7: Surface sound pressure level L
pA
3)4)
P
N
Pump Pump set
960rpm,
760rpm
1450rpm 2900rpm 960rpm,
760rpm
1450rpm 2900rpm
[kW] [dB] [dB] [dB] [dB] [dB] [dB]
1,5 52 53 54 56 58 63
2,2 53 55 56 58 60 66
3 55 56 57 60 62 68
4 56 58 59 61 63 69
3) Spatial average; as per ISO3744 and EN12639; valid for pump operation in the Q/Qopt = 0.8-1.1 range and for non-
cavitating operation. If noise levels are to be guaranteed: add +3dB for measuring and constructional tolerance.
4) Increase for 60Hz operation: 3500rpm +3dB, 1750rpm +1dB, 1160rpm ±0dB
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P
N
Pump Pump set
960rpm,
760rpm
1450rpm 2900rpm 960rpm,
760rpm
1450rpm 2900rpm
[kW] [dB] [dB] [dB] [dB] [dB] [dB]
5,5 58 59 61 62 65 71
7,5 59 61 62 64 66 72
11 61 63 64 65 68 74
15 63 65 66 67 69 75
18,5 64 66 67 68 70 76
22 65 67 68 68 71 77
30 66 68 70 70 72 78
37 67 70 71 70 73 79
45 68 71 72 71 74 80
55 69 72 73 72 74 80
75 71 73 75 73 76 81
90 71 74 76 73 76 82
110 72 75 77 74 77 82
132 73 76 78 75 77 83
160 74 77 79 75 78 84
200 75 78 80 76 79 84
250 - 79 81 - 80 85
4.8 Scope of supply
Depending on the model, the following items are included in the scope of supply:
▪ Pump
▪ KSB surface-cooled IEC frame three-phase current squirrel-cage motor
▪ Flexible coupling with or without spacer
▪ Coupling guard
▪ Baseplate (to ISO 3661), cast or welded, for pump and motor, in torsion-resistant
design
4.9 Dimensions and weights
For dimensions and weights please refer to the general arrangement drawing/outline
drawing of the pump/pump set.
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5 Installation at Site
5.1 Safety regulations
DANGER
Improper installation in potentially explosive atmospheres
Explosion hazard!
Damage to the pump set!
▷ Comply with the applicable local explosion protection regulations.
▷ Observe the information in the data sheet and on the name plates of pump and
motor.
DANGER
Strong magnetic field in the area of the magnetic coupling or the individual
magnets
Danger of death for persons with pacemaker!
Interference with magnetic data carriers, electronic devices, components and
instruments!
Uncontrolled magnetic attraction forces between magnet-equipped components,
tools or similar!
▷ Keep a safety distance of at least 0.3 m.
▷ Also observe the additional instructions. (ðSection2.11,Page14)
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 EN206-1.
▷ The mounting surface must have set and must be completely horizontal and
even.
▷ 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 Installing the pump set
DANGER
Excessive temperatures due to improper installation
Explosion hazard!
▷ Install the pump in a horizontal position to ensure self-venting of the pump.
▷ In external circulation and dead-end configuration operating modes, vent the
rotor space separately via the auxiliary connections at the casing cover.
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DANGER
Improper installation
Excessive temperature of oil-lubricated rolling element bearings!
▷ Always install the pump set horizontally and align it.
5.3.1 Installation on the foundation
L
1
32
Fig.7: Fitting the shims
L Bolt-to-bolt distance 1 Shim
2 Shim if (L) > 800 mm 3 Foundation bolt
ü The foundation has the required strength and characteristics.
ü The foundation has been prepared in accordance with the dimensions given in
the outline drawing/general arrangement drawing.
1. Position the pump set on the foundation and level it with the help of a spirit
level placed on the shaft and discharge nozzle.
Permissible deviation: 0.2 mm/m.
2. Use shims (1) for height compensation, if necessary.
Always fit shims, if any, immediately to the left and right of the foundation bolts
(3) between the baseplate/foundation frame and the foundation.
For a bolt-to-bolt distance (L) > 800mm fit additional shims (2) halfway between
the bolt holes.
All shims must lie perfectly flush.
3. Insert the foundation bolts (3) into the holes provided.
4. Use concrete to set the foundation bolts (3) into the foundation.
5. Wait until the concrete has set firmly, then level the baseplate.
6. Tighten the foundation bolts (3) evenly and firmly.
7. Grout the baseplate using low-shrinkage concrete with a standard particle size
and a water/cement ratio of ≤ 0.5.
Produce flowability with the help of a solvent.
Perform secondary treatment of the concrete to DIN 1045.
NOTE
For low-noise operation contact the manufacturer to check whether the pump set
can be installed on anti-vibration mounts.
NOTE
Expansion joints can be fitted between the pump and the suction/discharge line.
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5.3.2 Installation without foundation
4
1
2
3
Fig.8: Adjusting the levelling elements
1, 3 Locknut 2 Adjusting nut
4 Machine mount
ü The installation surface has the required strength and characteristics.
1. Position the pump set on the machine mounts (4) and align it with the help of a
spirit level (on the shaft/discharge nozzle).
2. To adjust any differences in height, loosen the bolts and locknuts (1, 3) of the
machine mounts (4).
3. Turn the adjusting nut (2) until any differences in height have been
compensated.
4. Re-tighten the locknuts (1, 3) at the machine mounts (4).
5.4 Piping
5.4.1 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 without
transmitting any stresses or strains.
▷ Observe the permissible forces and moments at the pump nozzles.
(ðSection5.4.2,Page28)
▷ Take appropriate measures to compensate for thermal expansion of the piping.
CAUTION
Incorrect earthing during welding work at the piping
Destruction of rolling element bearings (pitting effect)!
▷ Never earth the electric welding equipment on the pump or baseplate.
▷ Prevent current flowing through the rolling element bearings.
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NOTE
Installing check and shut-off elements in the system is recommended, depending on
the type of plant and pump. However, such elements must not obstruct proper
drainage or hinder disassembly of the pump.
ü Suction lift lines have been laid with a rising slope, suction head lines with a
downward slope towards the pump.
ü A flow stabilisation section having a length equivalent to at least twice the
diameter of the suction flange has been provided upstream of the suction flange.
ü The nominal diameters of the pipelines are at least equal to the nominal
diameters of the pump nozzles.
ü Adapters to larger diameters have a diffuser angle of approximately 8° to
prevent excessive pressure losses.
ü The pipelines have been anchored in close proximity to the pump and connected
without transmitting any stresses or strains.
CAUTION
Welding beads, scale and other impurities in the piping
Damage to the pump!
▷ Free the piping from any impurities.
▷ If necessary, install a filter.
▷ Comply with the instructions set out in (ðSection7.2.2.3,Page55) .
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.
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 figure: Filter in the piping).
1
2
Fig.9: Filter in the piping
1 Differential pressure gauge 2 Filter
NOTE
Use a filter with laid-in wire mesh of 0.5 mm x 0.25 mm (mesh size x wire diameter)
made of corrosion-resistant material.
Use a filter with a filter area three times the cross-section of the piping.
Conical filters have proved suitable.
5. Connect the pump nozzles to the piping.
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CAUTION
Aggressive flushing and pickling agents
Damage to the pump!
▷ Match the cleaning operation mode and duration for flushing and pickling
service to the casing and seal materials used.
5.4.2 Permissible forces and moments at the pump nozzles
[+]
F
z
F
y
F
x
F
x
F
y
F
z
F
x
F
y
F
z
M
z
M
y
M
x
Fig.10: Forces and moments at
the pump nozzles
The data on forces and moments apply to static piping loads only. If the limits are
exceeded, they must be checked and verified.
If a computerised strength analysis is required, values are available on request only.
The values are only applicable if the pump is installed on a completely grouted
baseplate and bolted to a rigid and level foundation.
Table8: Forces and moments at the pump nozzles for material variant C (1.4408/A743GRCF8M) at 20°C.
Size Suction nozzle Discharge nozzle
DN F
x
[N]
F
y
[N]
F
z
[N]
∑
F
[N]
M
x
[Nm]
M
y
[Nm]
M
z
[Nm]
DN F
x
[N]
F
y
[N]
F
z
[N]
∑
F
[N]
M
x
[Nm]
M
y
[Nm]
M
z
[Nm]
040-025-160 40 970 780 650 1404 845 585 683 25 490 455 600 898 370 390 455
040-025-200 40 970 780 650 1404 845 585 683 25 460 455 600 898 370 390 455
050-032-125 50 1240 1010 878 1824 910 650 748 32 650 555 780 1157 715 490 555
050-032-125.1 50 1240 1010 878 1824 910 650 748 32 650 555 780 1157 715 490 555
050-032-160 50 1240 1010 878 1824 910 650 748 32 650 555 780 1157 715 490 555
050-032-160.1 50 1240 1010 878 1824 910 650 748 32 650 555 780 1157 715 490 555
050-032-200 50 1240 1010 878 1824 910 650 748 32 650 555 780 1157 715 490 555
050-032-200.1 50 1240 1010 878 1824 910 650 748 32 650 555 780 1157 715 490 555
050-032-250 50 1240 1010 878 1824 910 650 748 32 650 555 780 1157 715 490 555
050-032-250.1 50 1240 1010 878 1824 910 650 748 32 650 555 780 1157 715 490 555
065-040-125 65 1600 1300 1105 2339 1050 715 780 40 780 650 1000 1425 845 585 685
065-040-160 65 1600 1300 1105 2339 1050 715 780 40 780 650 1000 1425 845 585 685
065-040-160.1 65 1600 1300 1105 2339 1050 715 780 40 780 650 1000 1425 845 585 685
065-040-200 65 1600 1300 1105 2339 1050 715 780 40 780 650 1000 1425 845 585 685
065-040-200.1 65 1600 1300 1105 2339 1050 715 780 40 780 650 1000 1425 845 585 685
065-040-250 65 1600 1300 1105 2339 1050 715 780 40 780 650 1000 1425 845 585 685
065-040-250.1 65 1600 1300 1105 2339 1050 715 780 40 780 650 1000 1425 845 585 685
065-040-315 65 1600 1300 1105 2339 1050 715 780 40 780 650 1000 1425 845 585 685
080-050-125 80 2000 1550 1333 2860 1330 748 1010 50 1000 880 1250 1827 910 650 750
080-050-160 80 2000 1550 1333 2860 1330 748 1010 50 1000 880 1250 1827 910 650 750
080-050-160.1 80 2000 1550 1333 2860 1330 748 1010 50 1000 880 1250 1827 910 650 750
080-050-200 80 2000 1550 1333 2860 1330 748 1010 50 1000 880 1250 1827 910 650 750
080-050-200.1 80 2000 1550 1333 2860 1330 748 1010 50 1000 880 1250 1827 910 650 750
080-050-250 80 2000 1550 1333 2860 1330 748 1010 50 1000 880 1250 1827 910 650 750
080-050-250.1 80 2000 1550 1333 2860 1330 748 1010 50 1000 880 1250 1827 910 650 750
080-050-315 80 2000 1550 1333 2860 1330 748 1010 50 1000 880 1250 1827 910 650 750
080-050-315.1 80 2000 1550 1333 2860 1330 748 1010 50 1000 880 1250 1827 910 650 750
100-065-125 100 2500 1950 1755 3624 1850 900 1400 65 1300 1105 1600 2339 1050 715 790
100-065-160 100 2500 1950 1755 3624 1850 900 1400 65 1300 1105 1600 2339 1050 715 790
100-065-200 100 2500 1950 1755 3624 1850 900 1400 65 1300 1105 1600 2339 1050 715 790
100-065-250 100 2500 1950 1755 3624 1850 900 1400 65 1300 1105 1600 2339 1050 715 790
100-065-315 100 2500 1950 1755 3624 1850 900 1400 65 1300 1105 1600 2339 1050 715 790
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Size Suction nozzle Discharge nozzle
DN F
x
[N]
F
y
[N]
F
z
[N]
∑
F
[N]
M
x
[Nm]
M
y
[Nm]
M
z
[Nm]
DN F
x
[N]
F
y
[N]
F
z
[N]
∑
F
[N]
M
x
[Nm]
M
y
[Nm]
M
z
[Nm]
125-080-160 125 3400 2700 2200 4867 2550 1250 1950 80 1550 1335 1950 2826 1350 750 1000
125-080-200 125 3400 2700 2200 4867 2550 1250 1950 80 1550 1335 1950 2826 1350 750 1000
125-080-200.1 125 3400 2700 2200 4867 2550 1250 1950 80 1550 1335 1950 2826 1350 750 1000
125-080-250 125 3400 2700 2200 4867 2550 1250 1950 80 1550 1335 1950 2826 1350 750 1000
125-080-315 125 3400 2700 2200 4867 2550 1250 1950 80 1550 1335 1950 2826 1350 750 1000
125-080-400 125 3400 2700 2200 4867 2550 1250 1950 80 1550 1335 1950 2826 1350 750 1000
125-100-160 125 3400 2700 2200 4867 2550 1250 1950 100 2000 1755 2500 3651 1850 900 1400
125-100-200 125 3400 2700 2200 4867 2550 1250 1950 100 2000 1755 2500 3651 1850 900 1400
125-100-250 125 3400 2700 2200 4867 2550 1250 1950 100 2000 1755 2500 3651 1850 900 1400
125-100-315 125 3400 2700 2200 4867 2550 1250 1950 100 2000 1755 2500 3651 1850 900 1400
125-100-400 125 3400 2700 2200 4867 2550 1250 1950 100 2000 1755 2500 3651 1850 900 1400
150-125-200 150 4300 3450 2850 6206 3200 1600 2450 125 2700 2200 3400 4867 2550 1300 1900
150-125-250 150 4300 3450 2850 6206 3200 1600 2450 125 2700 2200 3400 4867 2550 1300 1900
150-125-315 150 4300 3450 2850 6206 3200 1600 2450 125 2700 2200 3400 4867 2550 1300 1900
150-125-400 150 4300 3450 2850 6206 3200 1600 2450 125 2700 2200 3400 4867 2550 1300 1900
200-150-200 200 6750 5250 4300 9572 4850 2450 3550 150 3450 2850 4300 6206 3150 1600 2450
200-150-250 200 6750 5250 4300 9572 4850 2450 3550 150 3450 2850 4300 6206 3150 1600 2450
200-150-315 200 6750 5250 4300 9572 4850 2450 3550 150 3450 2850 4300 6206 3150 1600 2450
200-150-400 200 6750 5250 4300 9572 4850 2450 3550 150 3450 2850 4300 6206 3150 1600 2450
200-150-500 200 6750 5250 4300 9572 4850 2450 3550 150 3450 2850 4300 6206 3150 1600 2450
200-200-250 200 6750 5250 4300 9572 4850 2450 3550 200 5250 4300 6750 9572 4850 2450 3550
250-200-315 250 9200 7350 6150 13285 6900 3350 5250 200 5250 4300 6750 9572 4850 2450 3550
250-200-400 250 9200 7350 6150 13285 6900 3350 5250 200 5250 4300 6750 9572 4850 2450 3550
250-200-500 250 9200 7350 6150 13285 6900 3350 5250 200 5250 4300 6750 9572 4850 2450 3550
300-250-315 300 11000 9200 7350 16114 8400 4150 6350 250 7350 6150 9150 13250 6900 3350 5250
C, V
E, D
Y
0,6
0,7
0,8
0,9
1
1,2
0
50 100 150 200 250 300 400
°C
350
1,1
Correction coefficient
Fig.11: Temperature correction diagram for "C, D, E, V or Y variants" (1.4408/
A743GRCF8M)
5.4.3 Auxiliary connections
DANGER
Risk of potentially explosive atmosphere by mixing of incompatible fluids in the
auxiliary piping
Risk of burns!
Explosion hazard!
▷ Make sure that the barrier fluid and quench liquid are compatible with the
fluid pumped.
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WARNING
Failure to use or incorrect use of auxiliary connections (e.g. barrier fluid, flushing
liquid, etc.)
Risk of injury from escaping fluid!
Risk of burns!
Malfunction of the pump!
▷ Refer to the general arrangement drawing, the piping layout and pump
markings (if any) for the quantity, dimensions and locations of auxiliary
connections.
▷ Use the auxiliary connections provided.
5.5 Enclosure/insulation
DANGER
Impermissible temperature rise resulting from insulation of bearing bracket
lantern
Explosion hazard!
Risk of burns!
▷ If bearing bracket is insulated, monitor the containment shroud temperature.
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.
CAUTION
Heat build-up in the bearing bracket
Damage to the bearings!
▷ Bearing brackets must not be insulated.
▷ The bearing temperature must not exceed 90 °C (measured on the outside of
the bearing bracket).
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