KSB Sewatec Installation instructions

Dry-installed Volute Casing Pump
Sewatec
50 / 60 Hz
DIN / IEC motors
Bearing brackets S05, S06, S07, S08, S09, S10
Installation/Operating Manual
Mat. No.: 01104332

Legal information/Copyright
Installation/Operating Manual Sewatec
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 26/01/2018

Contents
3 of 96
Sewatec
Contents
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 .......................................................11
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................................................................................................................12
2.10 Explosion protection ......................................................................................................................................12
3 Transport/Temporary Storage/Disposal............................................................................................. 13
3.1 Checking the condition upon delivery..........................................................................................................13
3.2 Transport.........................................................................................................................................................13
3.3 Storage/preservation......................................................................................................................................15
3.4 Return to supplier...........................................................................................................................................16
3.5 Disposal ...........................................................................................................................................................16
4 Description of the Pump (Set)............................................................................................................. 17
4.1 General description ........................................................................................................................................17
4.2 Designation.....................................................................................................................................................19
4.3 Name plate......................................................................................................................................................19
4.4 Design details..................................................................................................................................................19
4.5 Design and function.......................................................................................................................................20
4.6 Noise characteristics .......................................................................................................................................20
4.7 Scope of supply...............................................................................................................................................21
4.8 Dimensions and weights ................................................................................................................................21
5 Installation at Site................................................................................................................................ 22
5.1 Checks to be carried out prior to installation...............................................................................................22
5.2 Installing the pump set in a horizontal position ..........................................................................................22
5.3 Installing the pump set in a vertical position ...............................................................................................23
5.4 Piping ..............................................................................................................................................................24
5.4.1 Connecting the piping ......................................................................................................................24
5.4.2 Permissible forces and moments at the pump nozzles....................................................................25
5.4.3 Vacuum balance line..........................................................................................................................27
5.5 Auxiliary connections .....................................................................................................................................28
5.6 Checking the coupling alignment .................................................................................................................30
5.7 Checking the belt drive..................................................................................................................................31
5.7.1 Checking the pulley alignment .........................................................................................................31
5.7.2 Tensioning the belts .........................................................................................................................31
5.8 Installing pump sets with universal-joint shaft.............................................................................................32
5.9 Aligning the pump and motor ......................................................................................................................32
5.9.1 Motors with adjusting screw.............................................................................................................32
5.9.2 Motors without adjusting screw .......................................................................................................33
5.10 Checking the lubricants..................................................................................................................................34
5.11 Barrier fluid connection .................................................................................................................................34
5.12 Electrical connection ......................................................................................................................................34
5.13 Checking the direction of rotation................................................................................................................35

Contents
4 of 96 Sewatec
5.14 Priming and venting the pump .....................................................................................................................36
5.15 Protective devices ...........................................................................................................................................36
5.16 Connecting the vibration sensor ...................................................................................................................36
5.17 Connecting temperature measuring devices................................................................................................36
5.18 Warning and cut-out values ..........................................................................................................................37
5.19 Connecting a leakage monitor......................................................................................................................37
6 Commissioning/Start-up/Shutdown................................................................................................... 39
6.1 Commissioning/Start-up.................................................................................................................................39
6.1.1 Prerequisites for commissioning/start-up .........................................................................................39
6.1.2 Start-up...............................................................................................................................................39
6.2 Operating limits..............................................................................................................................................40
6.2.1 Maximum operating pressure ...........................................................................................................40
6.2.2 Frequency of starts.............................................................................................................................42
6.2.3 Fluid handled .....................................................................................................................................42
6.3 Shutdown/storage/preservation ....................................................................................................................42
6.3.1 Shutdown ...........................................................................................................................................43
6.4 Returning to service .......................................................................................................................................43
7 Servicing/Maintenance........................................................................................................................ 44
7.1 Safety regulations...........................................................................................................................................44
7.2 Servicing/inspection........................................................................................................................................45
7.2.1 Supervision of operation ...................................................................................................................45
7.2.2 Visual inspection through the inspection hole ................................................................................46
7.2.3 Lubrication and lubricant change.....................................................................................................47
7.3 Drainage/cleaning ..........................................................................................................................................51
7.4 Dismantling the pump set..............................................................................................................................51
7.4.1 General information/Safety regulations...........................................................................................51
7.4.2 Preparations for dismantling ............................................................................................................52
7.4.3 Separating the pump from the piping .............................................................................................52
7.4.4 Removing the belt drive ....................................................................................................................53
7.4.5 Removing the back pull-out unit ......................................................................................................56
7.4.6 Removing the impeller ......................................................................................................................57
7.4.7 Dismantling the mechanical seal ......................................................................................................60
7.4.8 Dismantling the gland packing.........................................................................................................61
7.4.9 Removing shaft and rolling element bearings.................................................................................62
7.4.10 Removing the wear plate (for D type impellers only) .....................................................................63
7.5 Reassembling the pump set...........................................................................................................................63
7.5.1 General information/Safety regulations...........................................................................................63
7.5.2 Installing the shaft and rolling element bearings ...........................................................................64
7.5.3 Preparing and reassembling the bearing brackets ..........................................................................65
7.5.4 Installing the mechanical seal ...........................................................................................................66
7.5.5 Fitting the gland packing ..................................................................................................................68
7.5.6 Fitting the impeller ............................................................................................................................68
7.5.7 Installing the back pull-out unit .......................................................................................................70
7.5.8 Leak test ............................................................................................................................................71
7.5.9 Mounting the motor..........................................................................................................................72
7.5.10 Fitting the belt drive..........................................................................................................................73
7.6 Tightening torques.........................................................................................................................................74
7.7 Spare parts stock.............................................................................................................................................74
7.7.1 Ordering spare parts..........................................................................................................................74
7.7.2 Recommended spare parts stock for 2 years' operation to DIN24296...........................................75
8 Trouble-shooting.................................................................................................................................. 76
9 Related Documents.............................................................................................................................. 78
9.1 Speed adjustment...........................................................................................................................................78
9.2 Mass moments of inertia................................................................................................................................80
9.3 General assembly drawings/exploded views with list of components ........................................................82
9.3.1 General assembly drawing – Sewatec with bearing brackets S05, S06, S07, S08...........................82
9.3.2 General assembly drawing – Sewatec with bearing brackets S05, S06, S07, S08, underfloor
installation, universal-joint shaft ......................................................................................................83

Contents
5 of 96
Sewatec
9.3.3 General assembly drawing – Sewatec with bearing brackets S09, S10 ..........................................85
9.3.4 Detailed views ....................................................................................................................................87
9.3.5 Exploded view of Sewatec with mechanical seal.............................................................................90
9.3.6 Exploded view of Sewatec with gland packing ...............................................................................91
10 EU Declaration of Conformity............................................................................................................. 92
11 Certificate of Decontamination........................................................................................................... 93

Glossary
6 of 96 Sewatec
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.
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
Hydraulic system
The part of the pump in which the kinetic energy
is converted into pressure energy
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

1 General
7 of 96
Sewatec
1 General
1.1 Principles
This operating manual is valid for the type series and variants indicated on the front
cover. The operating manual describes the proper and safe use of this equipment in
all phases of operation.
The name plate indicates the type series and size, the main operating data, the order
number and the order item number. The order number and order item number
clearly identify the pump set and serve as identification for all further business
processes.
In the event of damage, immediately contact your nearest KSB Service centre to
maintain the right to claim under warranty.
1.2 Installation of partly completed machinery
To install partly completed machinery supplied by KSB refer to the sub-sections under
Servicing/Maintenance. (ðSection7.5.7,Page70)
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10)
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
⇨Cross-references
1) If agreed upon in scope of supply

1 General
8 of 96 Sewatec
Symbol Description
1.
2.
Step-by-step instructions
Note
Recommendations and important information on how to handle
the product

2 Safety
9 of 96
Sewatec
2 Safety
!DANGER
All the information contained in this section refers to hazardous situations.
In addition to the present general safety information the action-related safety
information given in the other sections must be observed.
2.1 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 Safety
10 of 96 Sewatec
2.3 Intended use
▪The pump set must only be operated within the operating limits described in the
other applicable documents.
▪Only operate pump sets which are in perfect technical condition.
▪Do not operate partially assembled pump sets.
▪Only use the pump to handle the fluids described in the data sheet or product
literature of the pump model.
▪Never operate the system without the fluid to be handled.
▪Observe the limits for continuous duty specified in the data sheet or product
literature (Qmin and Qmax) (to prevent damage such as shaft fracture, bearing
failure, mechanical seal damage, etc).
▪When untreated waste water is handled, the duty points in continuous operation
lie within 0.7 to 1.2×Qopt to minimise the risk of clogging/hardening.
▪Avoid duty points for continuous operation at very low speeds and small flow
rates (<0.7×Qopt).
▪Observe the minimum flow rate and maximum flow rate indicated in the data
sheet or product literature (to prevent overheating, mechanical seal damage,
cavitation damage, bearing damage, etc).
▪Do not throttle the flow rate on the suction side of the system (prevention of
cavitation damage).
▪Consult the manufacturer about any use or mode of operation not described in
the data sheet or product literature.
▪Only use the respective impeller types in combination with the fluids described
below.
Free-flow impeller
(impeller type F/F-max)
Suitable for the following fluids:
fluids containing solids and stringy material as well as fluids with
entrapped air or entrapped gas
Open, diagonal single-channel
impeller
(impeller type D)
Suitable for the following fluids:
fluids containing solid substances and long fibres
Closed single-channel impeller
(impeller type E/E-max)
Suitable for the following fluids:
fluids containing solids and stringy material
Closed multi-channel impeller
(impeller type K/K-max)
Suitable for the following fluids:
contaminated, solids-laden, non-gaseous fluids without stringy
material
Prevention of foreseeable misuse
▪Observe the minimum flow velocities required to fully open the swing check
valves to prevent the reduction of pressure and risk of clogging.
(Contact the manufacturer for the required minimum flow velocities/loss
coefficients.)
▪Never exceed the permissible operating limits specified in the data sheet 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.

2 Safety
11 of 96
Sewatec
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
2.7 Safety information for the operator/user
▪Fit protective equipment (e.g. contact guards) supplied by the operator for hot,
cold or moving parts, and check that the equipment functions properly.
▪Do not remove any protective equipment (e.g. contact guards) while the pump is
in operation. The only exception is the guard of the packing chamber.
▪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.

2 Safety
12 of 96 Sewatec
▪When taking the pump set out of service always adhere to the procedure
described in the manual.
▪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39)
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 an explosion-proof pump set.
Sections of the manual marked by the symbol opposite apply to explosion-proof
pump sets also when temporarily operated outside of potentially explosive
atmospheres.
Only pumps/pump sets marked as explosion-proof and identified as such in the data
sheet may be used in potentially explosive atmospheres.
Special conditions apply to the operation of an explosion-proof pump set to
EUDirective 2014/34/EU (ATEX).
Especially adhere to the sections in this manual marked with the symbol opposite.
The explosion-proof status of the pump set is only assured if the pump set is used in
accordance with its intended use.
Never operate the pump set outside the limits stated in the data sheet and on the
name plate.
Prevent impermissible modes of operation.

3 Transport/Temporary Storage/Disposal
13 of 96
Sewatec
3 Transport/Temporary Storage/Disposal
3.1 Checking the condition upon delivery
1. On transfer of goods, check each packaging unit for damage.
2. In the event of in-transit damage, assess the exact damage, document it and
notify KSB or the supplying dealer and the insurer about the damage in writing
immediately.
3.2 Transport
DANGER
The pump (set) could slip out of the suspension arrangement
Danger to life from falling parts!
▷Always transport the pump (set) in the specified position.
▷Never attach the suspension arrangement to the free shaft end or the motor
eyebolt.
▷Observe the information on weights, centre of gravity and fastening points.
▷Observe the applicable local accident prevention regulations.
▷Use suitable, permitted lifting accessories, e.g. self-tightening lifting tongs.
WARNING
Uncontrolled lifting of the pump (set) or drive
Risk of injury!
▷Maintain adequate safety distance during lifting operations (load may swing
when being lifted).
WARNING
Placing the pump set on unsecured and uneven surfaces
Personal injury and damage to property!
▷Only place the pump set on a surface of sufficient load-carrying capacity.
▷Use appropriate means to secure the pump set against tilting or tipping over.
To transport the pump/pump set suspend it from the lifting tackle as shown.

3 Transport/Temporary Storage/Disposal
14 of 96 Sewatec
Table4: For configurations as shown in figures e, f and g attach hoisting chains to the hooks welded to the
baseplate.
Use 2 rope loops each for configurations as shown in figures h and i.
Fig. a)
Bare shaft pump
Fig. b)
Pump set on baseplate
Fig. c)
Bare shaft pump on baseplate
Fig. d)
Pump set with belt drive on baseplate
Fig. e)
Pump set with belt drive and foot-mounted motor
Use the hooks welded to the baseplate!
Fig. f)
Pump set with belt drive, counter shaft and foot-mounted
motor
Use the hooks welded to the baseplate!

3 Transport/Temporary Storage/Disposal
15 of 96
Sewatec
Fig. g)
Pump set on baseplate
Use the hooks welded to the baseplate!
Fig. h)
Vertical pump set
Attach two loops of rope to the drive lantern!
Fig. i)
Vertical pump
Attach two loops of rope to the integrally cast feet of the
pump casing!
3.3 Storage/preservation
If commissioning is to take place some time after delivery, we recommend that the
following measures be taken for pump (set) storage.
CAUTION
Damage during storage due to humidity, dirt, or vermin
Corrosion/contamination of the pump (set)!
▷For outdoor storage cover the 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.

3 Transport/Temporary Storage/Disposal
16 of 96 Sewatec
Table5: Ambient conditions for storage
Ambient condition Value
Relative humidity 5% to 85%
(non-condensing)
Ambient temperature -10°C to +70°C
▪Store the pump set under dry and vibration-free conditions, if possible in its
original packaging. (ðSection6.3,Page42)
▪Rotate the shaft once a month.
1. Spray-coat the inside wall of the pump casing and, in particular, the impeller
clearance areas with a preservative.
2. Spray preservative through the suction nozzle and discharge nozzle.
It is advisable to then close the pump nozzles (e.g. with plastic caps or similar).
NOTE
Observe the manufacturer's instructions for application/removal of the preservative.
3.4 Return to supplier
1. Drain the pump as per operating instructions. (ðSection7.3,Page51)
2. Flush and clean the pump, particularly if it has been used for handling noxious,
explosive, hot or other hazardous fluids.
3. If the pump has handled fluids whose residues could lead to corrosion damage
in the presence of atmospheric humidity or could ignite upon contact with
oxygen also neutralise the pump and blow through with anhydrous inert gas to
ensure drying.
4. Always complete and enclose a certificate of decontamination when returning
the pump.
Indicate any safety measures and decontamination measures taken.
(ðSection11,Page93)
NOTE
If required, a blank certificate of decontamination can be downloaded from the
following web site: www.ksb.com/certificate_of_decontamination
3.5 Disposal
WARNING
Fluids handled, consumables and supplies which are hot and/or pose a health
hazard
Hazard to persons and the environment!
▷Collect and properly dispose of flushing fluid and any fluid residues.
▷Wear safety clothing and a protective mask if required.
▷Observe all legal regulations on the disposal of fluids posing a health hazard.
1. Dismantle the pump (set).
Collect greases and other lubricants during dismantling.
2. Separate and sort the pump materials, e.g. by:
- Metals
- Plastics
- Electronic waste
- Greases and other lubricants
3. Dispose of materials in accordance with local regulations or in another
controlled manner.

4 Description of the Pump (Set)
17 of 96
Sewatec
4 Description of the Pump (Set)
4.1 General description
Pump for handling untreated sewage and all types of waste water.
▪Volute casing pump with single-vane impeller, multi-vane impeller, free-flow
impeller or open diagonal single-vane impeller.
▪Electric motor connected to the pump via a coupling, belt drive or universal-joint
shaft
Table6: Horizontal installation
Installation
type
Illustration Description
Figure 0 Bare shaft pump
Figure 3 HZ Pump set with baseplate, belt drive
and belt guard
Figure 3 HM Pump set with baseplate, belt drive,
belt guard and motor stand
Figure 3 HVG Pump set with baseplate, coupling
(also with coupling spacer), coupling
guard, counter shaft stand, counter
shaft, motor stand, belt drive and belt
guard
Figure 3 EN
Figure 3 ENH
Pump set with baseplate, coupling
(also with coupling spacer) and
coupling guard

4 Description of the Pump (Set)
18 of 96 Sewatec
Table7: Vertical installation
Installation
type
Illustration Description
Figure V Bare shaft pump, soleplate and suction
elbow
Figure VU Pump set with soleplate and
foundation, coupling, coupling guard
and suction elbow
Figure VGW Pump set with soleplate for pump and
motor, support frame, drive lantern,
suction elbow and universal-joint shaft

4 Description of the Pump (Set)
19 of 96
Sewatec
4.2 Designation
Example: Sewatec F100-250GV
Table8: Designation key
Code Description
Sewatec Type series
F Impeller type
100 Nominal discharge nozzle diameter [mm]
250 Nominal impeller diameter [mm]
G Material variant
V Installation type
4.3 Name plate
2016
Sewatec D 300 - 400
P-No. 9971423078 / 000100
Q 306,44 l/s
n 983 1/min
H 5,29 m
SNr. 24 15 26
Gew. 1090 kg
1
2
3
4
5
6
7
8
9
Johann-Klein-Straße 9
Deutschland
67227 Frankenthal
KSB SE & Co. KGaA
Fig.1: Name plate (example)
1 Designation of the pump set 2 Order number
3 Flow rate 4 Speed
5 Weight of Fig.0 (bareshaft) pump 6 Year of supply
7 Order item number 8 Head
9 Serial number
4.4 Design details
Design
▪Volute casing pump
▪Back pull-out design
▪Single-stage
▪Various, application-oriented installation types (ðSection4.1,Page17)
Shaft seal
▪Two bi-directional mechanical seals in tandem arrangement, with liquid reservoir
▪Gland packing
Impeller type
▪Various application-oriented impeller types (ðSection2.3,Page10)
Bearings
▪Grease-packed rolling element bearings with relubrication system on pump and
drive end

4 Description of the Pump (Set)
20 of 96 Sewatec
4.5 Design and function
1
2
3 4 5
6
7 8 9 10
Fig.2: Sectional drawing with single-vane impeller
1 Clearance gap 2 Discharge nozzle
3 Discharge cover 4 Shaft
5 Bearing bracket 6 Suction nozzle
7 Impeller 8 Shaft seal
9 Rolling element bearing 10 Rolling element bearing
Design The pump is designed with an axial fluid inlet and a radial or tangential outlet. The
hydraulic system runs in its own bearings and is connected to the motor by a shaft
coupling or belt drive.
Function The fluid enters the pump axially via the suction nozzle (6) and is accelerated
outward by the rotating impeller (7). 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 (1) prevents
any fluid from flowing back from the casing to the suction nozzle. At the rear side of
the impeller, the shaft (4) enters the casing via the casing cover (3). The shaft passage
through the cover is sealed to atmosphere with a shaft seal (8). The shaft runs in
rolling element bearings (9 and 10), which are supported by a bearing bracket (5)
linked with the pump casing and/or casing cover.
Sealing The pump is sealed by two bi-directional mechanical seals in tandem arrangement or
with a gland packing.
4.6 Noise characteristics
Table9: Surface sound pressure level LpA
2)
Rated power
input
PN
Pump Pump set
2900 rpm 1450 rpm 960 / 760 rpm 2900 rpm 1450 rpm 960 / 760 rpm
[kW] [dB] [dB] [dB] [dB] [dB] [dB]
11,0 62,5 60,5 59,5 72,5 67,0 65,5
15,0 64,0 61,5 60,5 73,5 68,0 66,5
18,5 64,5 62,5 61,5 74,0 68,5 67,5
22,0 65,5 63,5 62,5 74,5 69,0 68,0
30,0 67,0 65,0 63,5 75,0 70,5 69,0
37,0 68,0 65,5 64,5 75,5 71,0 69,5
45,0 68,5 66,5 65,5 77,0 71,5 70,5
2) Measured at a distance of 1 m from the pump outline (as per DIN 45635 Part 1 and 24)