Operating instructions1316.8014/2-10 G3 RPH

RPH process pumpto API 610, 10th edition and DIN ISO 13709

and Directive 94/9/ECStandard bearing assemblies B 02 to B 06

Tandem bearing assemblies B 02 to B 06cooled/uncooled

Mechanical seal

Made by KSB

Works No.: __________________________________

Type series: __________________________________

These operating instructions contain fundamentalinformation and precautionary notes. Please read

the manual thoroughly prior to installation of unit,connection to the power supply and commissioning. It isimperative to comply with all other operating instructionsreferring to components of this unit.

This manual shall always be kept close to the unit’slocation of operation or directly on the pump set.

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ContentsPage

1 General 4

2 Safety 42.1 Marking of instructions in the manual 42.2 Personnel qualification and training 42.3 Non-compliance with safety instructions 42.4 Safety awareness 42.5 Safety instructions for the operator / user 42.6 Safety instructions for maintenance,

inspection and installation work 52.7 Unauthorized modification and manufacture

of spare parts 52.8 Unauthorized modes of operation 52.9 Explosion protection 52.9.1 Unit fill 52.9.2 Marking 52.9.3 Checking the direction of rotation 52.9.4 Pump operating mode 52.9.5 Temperature limits 52.9.6 Maintenance 6

3 Transport and interim storage 63.1 Transport 63.2 Interim storage/Preservation 6

4 Description of the product andaccessories 6

4.1 Technical specification 64.2 Designation 64.3 Design details 64.3.1 Pump casing 64.3.2 Impeller 74.3.3 Shaft seal 74.3.4 Bearings 74.3.5 Permissible forces and moments at the

pump nozzles 74.3.6 Noise characteristics 84.4 Accessories 84.5 Dimensions and weights 8

5 Installation at site 85.1 Safety regulations 85.2 Checks to be carried out prior to installation 85.3 Installing the pump / unit 95.3.1 Aligning the pump / drive 95.3.2 Place of installation 95.4 Connecting the piping 105.4.1 Auxiliary connections 105.4.2 Coupling guard 105.5 Final check 105.6 Connection to power supply 10

Page

6 Commissioning, start-up / shutdown 106.1 Commissioning 106.1.1 Lubricants 106.1.2 Shaft seal 116.1.3 Priming the pump and checks to be carried

out 116.1.4 Checking the direction of rotation 116.1.5 Cleaning the plant piping 116.1.6 Start-up strainer 116.1.7 Start-up 126.1.8 Shutdown 126.2 Operating limits 126.2.1 Temperature of fluid handled / ambient

temperature 126.2.2 Switching frequency 126.2.3 Density of fluid pumped 126.2.4 Abrasive fluids 126.2.5 Minimum/Maximum Flow 126.3 Shutdown / Storage /

Preservation 126.3.1 Storage of new pumps 126.3.2 Measures to be taken for prolonged

shutdown 136.4 Returning to service after storage 13

7 Servicing / maintenance 137.1 General instructions 137.2 Servicing / inspection 137.2.1 Supervision of operation 137.2.2 Lubrication and lubricant change 137.3 Drainage / disposal 137.4 Dismantling 147.4.1 Fundamental instructions and

recommendations 147.4.2 Dismantling (general) 147.5 Reassembly 147.5.1 General instructions 147.5.2 Reassembly (general) 157.5.3 Tightening torques 15/167.5.4 Mechanical seal installation 167.5.5 Clearances 177.6 Spare parts stock 187.6.1 Recommended spare parts stock for 2

years’ operation 187.6.2 Interchangeability of pump components 19

8 Trouble-shooting 20

9 General assembly drawings/lists ofcomponents 21-24

9.1 Material class S, cooled/uncoooled 219.2 Bearing bracket B 06, cooled/uncooled 229.3 Design variants 23

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IndexSection Page

Abrasive fluids 6.2.4 12Accessories 4.4 8Aligning the pump / drive 5.3.1 9Auxiliary connections 5.4.1 10

Bearing bracket B 06, cooled/uncooled 9.2 22Bearings 4.3.4 7

Checking the direction of rotation 2.9.3/6.1.4

5/11

Checks to be carried out prior to installation 5.2 8Cleaning the plant piping 6.1.5 11Clearances 7.5.5 17Commissioning 6.1 10Commissioning, start-up / shutdown 6 10Connecting the piping 5.4 10Connection to power supply 5.6 10Coupling guard 5.4.2 10

Density of fluid pumped 6.2.3 12Description of the product and accessories 4 6Design details 4.3 6Design variants 9.3 23Designation 4.2 6Dimensions and weights 4.5 8Dismantling 7.4 14Dismantling (general) 7.4.2 14Drainage / disposal 7.3 13

Explosion protection 2.9 5

Final check 5.5 10Fundamental instructions and

recommendations 7.4.1 14

General 1 4General assembly drawings/lists of

components 9 21-24General instructions 7.1/

7.5.113/14

Impeller 4.3.2 7Installation at site 5 8Installing the pump / unit 5.3 9Interchangeability of pump components 7.6.2 19Interim storage/Preservation 3.2 6

Lubricants 6.1.1 10Lubrication and lubricant change 7.2.2 13

Maintenance 2.9.6 6Marking 2.9.2 5Marking of instructions in the manual 2.1 4Material class S, cooled/uncoooled 9.1 21Measures to be taken for prolonged

shutdown 6.3.2 13Mechanical seal installation 7.5.4 16Minimum/Maximum Flow 6.2.5 12

Section Page

Noise characteristics 4.3.6 8Non-compliance with safety instructions 2.3 4

Operating limits 6.2 12

Permissible forces and moments at thepump nozzles 4.3.5 7

Personnel qualification and training 2.2 4Place of installation 5.3.2 9Priming the pump and checks to be carried

out 6.1.3 11Pump casing 4.3.1 6Pump operating mode 2.9.4 5

Reassembly 7.5 14Reassembly (general) 7.5.2 15Recommended spare parts stock for

2 years’ operation 7.6.1 18Returning to service after storage 6.4 13

Safety 2 4Safety awareness 2.4 4Safety instructions for maintenance,

inspection and installation work 2.6 5Safety instructions for the operator / user 2.5 4Safety regulations 5.1 8Servicing / inspection 7.2 13Servicing / maintenance 7 13Shaft seal 4.3.3/

6.1.27/11

Shutdown 6.1.8 12Shutdown / Storage /

Preservation 6.3 12Spare parts stock 7.6 18Start-up 6.1.7 12Start-up strainer 6.1.6 11Storage of new pumps 6.3.1 12Supervision of operation 7.2.1 13Switching frequency 6.2.2 12

Technical specification 4.1 6Temperature limits 2.9.5 5Temperature of fluid handled / ambient

temperature 6.2.1 12Tightening torques 7.5.3 15/16Transport 3.1 6Transport and interim storage 3 6Trouble-shooting 8 20

Unauthorized modes of operation 2.8 5Unauthorized modification and manufacture

of spare parts 2.7 5Unit fill 2.9.1 5

Caution

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1 GeneralThis KSB product has been developed inaccordance with state-of-the-art technology; it

is manufactured with utmost care and subject to continuousquality control.These operating instructions are intended to facilitatefamiliarization with the unit and its designated use.The manual contains important information for reliable, properand efficient operation. Compliance with the operatinginstructions is of vital importance to ensure reliability and a longservice life of the unit and to avoid any risks.These operating instructions do not take into account localregulations; the operatormust ensure that such regulations arestrictly observed by all, including the personnel called in forinstallation.

This pump / unit must not be operated beyond the limitvalues for the fluid handled, capacity, speed, density,

pressure, temperature and motor rating specified in thetechnical documentation. Make sure that operation is inaccordance with the instructions laid down in this manual or inthe contract documentation. Contact the manufacturer, ifrequired.The name plate indicates the type series / size, main operatingdata and works number; please quote this information in allqueries, repeat orders and particularly when ordering spareparts.If you need any additional information or instructions exceedingthe scope of this manual or in case of damage please contactKSB’s nearest customer service centre.Noise characteristics see section 4.3.6.

2 SafetyThese operating instructions contain fundamental informationwhich must be complied with during installation, operation,monitoring and maintenance. Therefore this operating manualmust be read and understood both by the installing personneland the responsible trained personnel / operators prior toinstallation and commissioning, and it must always be keptclose to the location of operation of the machine / unit for easyaccess.Not only must the general safety instructions laid down in thischapter on ”Safety” be complied with, but also the safetyinstructions outlined under specific headings, particularly if thepump/unit is operated in potentially explosive atmospheres(see section 2.9).

2.1 Marking of instructions in the manualThe safety instructions contained in this manual whosenon-observance might cause hazards to persons are speciallymarked with the symbol

general hazard sign to ISO 7000-0434

the electrical danger warning sign is

safety sign to IEC 417 - 5036.,and special instructions concerning explosion protection aremarked

The word

Cautionis used to introduce safety instructions whose non-observancemay lead to damage to the machine and its functions.Instructions attached directly to the machine, e.g.- arrow indicating the direction of rotation- markings for fluid connectionsmust always be complied with and be kept in a perfectly legiblecondition at all times.

2.2 Personnel qualification and trainingAll personnel involved in the operation, maintenance,inspection and installation of the unit must be fully qualified tocarry out the work involved.Personnel responsibilities, competence and supervision mustbe clearly defined by the operator. If the personnel in questionis not already in possession of the requisite know-how,appropriate training and instruction must be provided. Ifrequired, the operator may commission the manufacturer /supplier to take care of such training. In addition, the operatoris responsible for ensuring that the contents of the operatinginstructions are fully understood by the responsible personnel.

2.3 Non-compliance with safety instructionsNon-compliance with safety instructions can jeopardize thesafety of personnel, the environment and the machine / unititself. Non-compliance with these safety instructions will alsolead to forfeiture of any and all rights to claims for damages.In particular, non-compliance can, for example, result in:- failure of important machine/system functions,- failure of prescribed maintenance and servicing practices,- hazard to persons by electrical, mechanical and chemical

effects as well as explosion,- hazard to the environment due to leakage of hazardous

substances.

2.4 Safety awarenessIt is imperative to comply with the safety instructions containedin this manual, the relevant national and international explosionprotection regulations, health and safety regulations and theoperator’s own internal work, operation and safety regulations.

Ex symbol relates to additional requirements whichmust be adhered to when the pump is operated in

potentially explosive atmospheres.

2.5 Safety instructions for the operator / user- Any hot or cold components that could pose a hazard must

be equipped with a guard by the operator.- Guards which are fitted to prevent accidental contact with

moving parts (e.g. coupling)must not be removed whilst theunit is operating.

- Leakages (e.g. at the shaft seal) of hazardous fluidshandled (e.g. explosive, toxic, hot) must be contained so asto avoid any danger to persons or the environment. Allrelevant laws must be heeded.

- Electrical hazards must be eliminated. (In this respect referto the relevant safety regulations applicable to differentcountries and/or the local energy supply companies.)

- Any components in contact with the fluid pumped,especially in the case of abrasive fluids, shall be inspectedfor wear at regular intervals and replaced by original spareparts (see section 2.7) in due time.

If the pumps/units are located in potentially explosiveatmospheres, it is imperative to make sure that

unauthorized modes of operation are prevented.Non-compliance may result in the specified temperature limitsbeing exceeded.

Caution

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2.6 Safety instructions for maintenance,inspection and installation work

The operator is responsible for ensuring that all maintenance,inspection and installation work be performed by authorized,qualified specialist personnel who are thoroughly familiar withthe manual.The pump must have cooled down to ambient temperature,pump pressure must have been released and the pump musthave been drained.Work on the machine / unit must be carried out only duringstandstill. The shutdown procedure described in themanual fortaking the unit out of service must be adhered to without fail.Pumps or pump units handling fluids injurious to health must bedecontaminated.Immediately following completion of the work, allsafety-relevant and protective devices must be re-installedand/or re-activated.Please observe all instructions set out in the chapter on”Commissioning” before returning the unit to service.

2.7 Unauthorized modification andmanufacture of spare parts

Modifications or alterations of the equipment supplied are onlypermitted after consultation with the manufacturer and to theextent permitted by the manufacturer . Original spare parts andaccessories authorized by themanufacturer ensure safety. Theuse of other parts can invalidate any liability of themanufacturerfor consequential damage.

2.8 Unauthorized modes of operationThewarranty relating to the operating reliability andsafety of theunit supplied is only valid if the equipment is used inaccordancewith its designated use as described in the following sections.The limits stated in the data sheetmust not be exceeded underany circumstances.

2.9 Explosion protectionIf the pumps/units are installed in potentially explosiveatmospheres, the measures and instructions given in

the following sections 2.9.1 to 2.9.6 must be adhered to withoutfail, to ensure explosion protection.

2.9.1 Unit fill

It is assumed that the system of suction and dischargelines and thus the wetted pump internals are completely

filled with the product to be handled at all times during pumpoperation, so that an explosive atmosphere is prevented.

If the operator cannotwarrant this condition, appropriatemonitoring devices must be used.

In addition, it is imperative to make sure that theseal chambers, auxiliary systems of the shaft

seal and the heating and cooling systems are properly filled.

2.9.2 Marking

The marking on the pump only refers to the pump part,i.e. the coupling andmotormustbe regardedseparately.

The couplingmust have anECmanufacturer’s declaration. Thedriver must be regarded separately.Example of marking on the pump part:

Ex II 2 G T1 - T5The marking indicates the theoretically available temperaturerange as stipulated by the respective temperature classes. Thetemperatures permitted for the individual pump variants areoutlined in section 2.9.5.

2.9.3 Checking the direction of rotation (see also 6.1.4)

If the explosion hazard also exists during the installationphase, the direction of rotation must never be checked

by starting up the unfilled pump unit, even for a short period, toprevent temperature increases resulting from contact betweenrotating and stationary components.

2.9.4 Pump operating modeMake sure that the pump is always started up with thesuction-side shut-off valve fully open and the discharge-sideshut-off valve slightly open. However, the pump can also bestarted up against a closed swing check valve. Thedischarge-side shut-off valve shall be adjusted to comply withthe duty point immediately following the run-up process (see6.1.7 ).Pump operation with the shut-off valves in the suctionand/or discharge pipes closed is not permitted.

In this condition, there is a risk of the pumpcasing taking on high surface temperatures

after a very short time, due to a rapid temperature rise in thepumped fluid inside the pump.Additionally, the resulting rapid pressure build-up inside thepump may cause excessive stresses on the pump materials oreven bursting.Theminimum flows indicated in section 6.2.5 refer to water andwater-like liquids. Longer operating periods with these liquidsand at the flow rates indicated will not cause an additionalincrease in the temperatures on the pump surface. However, ifthe physical properties of the fluids handled are different fromwater, it is essential to check if an additional heat build-up mayoccur and if theminimum flow rate must therefore be increased.To check, proceed as described in section 6.2.5.In addition, the instructions given in section 6 of this operatingmanual must be observed.

Both gland packings and mechanical seals mayexceed the specified temperature limits if run dry.

Dry runningmay not only result from an inadequately filledseal chamber, but also from excessive gas content in thefluid handled.Pump operation outside its specified operating range mayalso result in dry running.In potentially explosive atmospheres, glandpackingsshallonly be used if combined with a suitable temperaturemonitoring device.

2.9.5 Temperature limits

In normal pumpoperation, the highest temperatures areto be expected on the surface of the pump casing, at the

shaft seal and in the bearing areas. The surface temperature atthe pump casing corresponds to the temperature of the fluidhandled.If the pump is heated, it must be ensured that the temperatureclasses stipulated for the plant are observed.In the bearing bracket area, the unit surfaces must be freely ex-posed to the atmosphere.In any case, responsibility for compliance with thespecified fluid temperature (operating temperature) lieswith the plant operator. The maximum permissible fluidtemperature depends on the temperature class to becomplied with.The table below lists the temperature classes to EN 13463-1and the resulting theoretical temperature limits of the fluidhandled. In stipulating these temperatures, any temperaturerise in the shaft seal area has already been taken into account.

Temperature classto EN 13463-1:

Temperature limit of fluid handled

T5T4T3T2T1

85 �C120 �C185 �C280 �C

max. 400 �C *)

*) depending on material variant

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Safety note:

The permissible operating temperature of thepump in question is indicated on the data

sheet. If the pump is to be operated at a higher temperature, thedata sheet is missing or if the pump is part of a pool of pumps,the maximum permissible operating temperature must beenquired from the pump manufacturer.

Based on an ambient temperature of 40 �C and propermaintenance and operation, compliance with temperatureclass T4 is warranted in the area of the rolling element bearings.A special design is required to comply with temperature classT6 in the bearing area. In such cases, and if ambienttemperature exceeds 40 �C, contact the manufacturer.

2.9.6 Maintenance

Only a pumpunitwhich is properly serviced andmaintai-ned in perfect technical conditionwill give safe and relia-

ble operation.This also applies to the reliable function of the rolling elementbearings whose actual lifetime largely depends on the opera-ting mode and operating conditions.Regular checks of the lubricant and the running noises will pre-vent the risk of excessive temperatures as a result of bearingsrunning hot or defective bearing seals (also see section7.2.2.2).The correct function of the shaft sealmust be checked regularly.Any auxiliary systems installed must be monitored, if neces-sary, to make sure they function correctly.Gland packings must be tightened correctly, to prevent exces-sive temperatures due to packings running hot.

3 Transport and interim storage

3.1 TransportTransport of the unit requires proper preparation and handling.Always make sure that the pump or the unit remains inhorizontal position during transport and cannot slip out of thetransport suspension arrangement. Do not use a lifting sling onthe free shaft end of the pump or on the motor eyebolt.

If the pump / unit slips out of the suspensionarrangement, it may cause personal injury and damage

to property!

D00311

Fig. 1 Transport of the pump

Fig. 2 Transport of the complete unit

3.2 Interim storage (indoors) / PreservationWhen the unit is temporarily put into storage, only the wettedlow alloy components (e.g. JL 1040, JS 1030, A 216 Gr. WCB,etc.) must be preserved. Commercially available preservativescan be used for this purpose. Please observe themanufacturer’s instructions for application/removal.The relevant procedure is described in section 6.3.The unit / pump should be stored in a dry room where theatmospheric humidity is as constant as possible.If stored outdoors, the unit and crates must be covered bywaterproof material to avoid any contact with humidity.

Protect all stored goods against humidity, dirt,vermin and unauthorized access! All openings

of the assembled unit components are closed andmust only beopened when required during installation.All blank parts and surfaces of the pump are oiled or greased(silicone-free oil and grease) to protect them against corrosion.

4 Description of the product andaccessories

4.1 Technical specificationRPH pumps are used for handling the large variety of crude oilproducts, mainly in refineries and chemical and petrochemicalplants.

4.2 Designation

Type seriesMaterial variantVersion with inducerDischarge nozzle DNNominal impeller dia. in mmSpecial hydraulics (B-hydraulics)

RPH S1 I 80 - 280 B

4.3 Design detailsHorizontal, radially split volute casing pumps in back pull-outdesign, to API 610, 10th edition and ISO 13709, with radialimpeller, single-flow, single-stage, centreline pump feet.

4.3.1 Pump casingRadially split, consisting of volute casing with casing wear ringand casing cover. The volute casing, the casing cover and theseal cover form the internal pump chamber.Thewall thickness of the casing includes a corrosion allowanceof 3 mm (0.12 in.).On some pump sizes, pump casings have a double volute, inorder to compensate radial forces.

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The casing cover is designed for holding the discharge-sidecasing wear ring, if this is required for balancing the axial thrust.The casing cover includes the heating or cooling chamber forthe shaft seal, if required.

For handling combustible fluids, the pump casing mustbemade of ductilematerialwith amaximummagnesium

content of 7.5 % (see EN 13463-1). This is a standard featurein all KSB supplies.

4.3.1.1 Position of pump feetGenerally centreline pump feet.Centreline pump feet are generally specified by API 610,10th edition.

Fig. 3 Casing with centreline pump feet

4.3.1.2 Nozzle positionsAxial inlet nozzle, radial discharge nozzle pointing verticallyupwards on pumps from DN 250 or with a nominal impellerdiameter from 500 and on pump size 200-401. All other pumpswith tangential discharge nozzle pointing vertically upwards.

4.3.2 ImpellerClosed radial impeller. Impellers are supplied with wear ringsboth on the suction and thedischarge sideor onlyon thesuctionside.Wear rings are locked with grub screws.(can also be locked with three weld spots).

Balancing:Axial thrust is balanced bymeans of sealing gap and balancingholes. The size of the balancing holes depends on the inletpressure.For high inlet pressures and thus impellers without balancing ofaxial thrust, the discharge-side casing and impeller wear ringsare not fitted.

4.3.3 Shaft seal - Mechanical seal

Mechanical seal designs and types other than specifiedherein shall only be used in exceptional cases and only

after prior consultation with the KSB factory.The relevant seal version is shown in the mechanical sealdrawing.

4.3.4 Bearings

4.3.4.1 Design specificationsThe shaft is supported byoil lubricated rolling elementbearings.The motor end bearing is a fixed bearing whose axial bearingclearance limits the axial movement of the rotor. The standardmotor end bearing is a paired angular contact ball bearing. Forhigh inlet pressures, a triple bearing assembly is used (seesection 9, design variants).The bearing brackets are providedwith oil bath lubrication.Bothoil ring lubrication and oil mist lubrication are available asspecial pump designs.On the standard pump design, the bearing bracket is uncooled.A cooled bearing bracket is available as special pump design.During pump standstill the oil level can be checked against themark next to the oil level sight glass.

4.3.4.2 Bearing bracket designationB 03

Size code (based on dimensions of seal chamber,shaft end and bearings)

Back pull-out bearing bracket

For the applicable bearing bracket version please refer to thedata sheet.

4.3.4.3 Bearings used and bearing design

KSB designation FAG designation SKF designation

B.MUA B. MP. UA BECBM

Standard bearing assembly

Bearingb k t

Rolling element bearingbracket Pump end Motor end

B 02B 03B 05B 06

NU 211 C3NU 213 C3NU 316 C3NU 324 C3

2 x 7309 B-MUA2 x 7311 B-MUA2 x 7315 B-MUA2 x 7224 B-MUA

Reinforced bearing assembly (triple bearing assembly)

Bearingb k t

Rolling element bearingbracket Pump end Motor end

B 02B 03B 05B 06

NU 211 C3NU 213 C3NU 316 C3NU 324 C3

3 x 7309 B-MUA3 x 7311 B-MUA3 x 7315 B-MUA3 x 7224 B-MUA

4.3.5 Permissible forces and moments at the pumpnozzles

RPH pumps are designed towithstand higher piping forces andmoments than required by API 610, tables 2-1A and 2-1B.

Forces and moments of RPH

D01046

Discharge nozzle

Suction nozzle

L

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RPHPumpi

Suction nozzle Discharge nozzlePumpsizes Forces (in N) Moments (in Nm) Forces (in N) Moments (in Nm)

Fx Fy Fz Fres Mx My Mz Mres Fx Fy Fz Fres Mx My Mz Mres25-18025-230 1780 1430 1160 2560 920 460 710 1250 1430 1160 1780 2560 920 460 710 125040-18040-23040-280

1780 1430 1160 2560 920 460 710 1250 1430 1160 1780 2560 920 460 710 1250

40-18140-23140-28140-361

1780 1430 1160 2560 920 460 710 1250 1430 1160 1780 2560 920 460 710 1250

50-18050-23050-28050-36050-450

2670 2140 1780 3860 1900 950 1440 2570 1430 1160 1780 2560 920 460 710 1250

80-18080-23080-28080-36080-450

3560 2840 2320 5110 2660 1360 2010 3600 2140 1780 2670 3860 1900 950 1440 2570

100-180100-230100-280100-360100-450

6230 4980 4090 8960 4610 2360 3530 6270 2850 2310 3560 5110 2660 1360 2010 3600

150-230150-280150-360150-450150-501150-630

9790 7560 6230 13850 7050 3530 5150 9420 4980 4100 6230 8970 4610 2360 3530 6270

200-280200-360200-401200-450200-501200-670

13350 10680 8900 19270 10030 4880 7590 13490 7560 6230 9790 13850 7060 3530 5150 9420

250-401250-501250-630250-710

16000 13340 10680 23410 12200 5960 9220 16412 10680 8900 13340 19267 10040 4880 7600 13505

Fig. 4 Forces and moments Coordinate axes as per API 610

4.3.6 Noise characteristicsRatedpower

Sound pressure level pA (dB) 1) 2)powerinput PN

Pump only Pump with motor

(kW) 29001/min

14501/min

960/7601/min

29001/min

14501/min

960/7601/min

1.5 53.5 52.5 51.5 63.0 58.0 55.52.2 55.5 54.5 53.0 66.0 60.0 58.03.0 57.0 56.0 54.5 67.5 61.5 59.54.0 59.0 57.5 56.0 69.0 63.0 61.05.5 60.5 59.0 57.5 70.5 64.5 62.07.5 62.0 61.0 59.0 72.0 66.0 63.511.0 64.0 63.0 61.0 74.0 67.5 65.015.0 66.0 64.5 62.5 75.0 69.0 66.518.5 67.0 65.5 63.5 76.0 70.0 67.522.0 68.0 66.5 64.5 76.5 70.5 68.030.0 70.0 68.0 66.0 78.0 72.0 69.537.0 71.0 69.5 67.0 78.5 72.5 70.045.0 72.0 70.5 68.0 79.5 73.5 71.055.0 73.0 71.5 69.0 80.0 74.0 71.575.0 74.5 73.0 70.5 81.0 75.5 72.590.0 75.5 74.0 71.0 81.5 76.0 73.0110.0 77.0 75.0 72.0 82.0 76.5 74.0132.0 78.0 76.0 73.0 82.5 77.0 74.5160.0 79.0 77.0 74.0 83.5 78.0 75.0200.0 80.0 78.0 75.0 84.0 78.5 75.5250.0 80.5 78.5 - 84.5 79.5 -

1)measuredat adistanceof 1mfromthe pumpoutline as per DIN45635,Part 1 and 24. Room and foundation influences have not beenincluded. The tolerance for these factors is 1 to 2 dB.

2) Increase for 60 Hz operationPump without motor: ---Pump with motor:3500min-1: +3dB, 1750min-1: +1dB, 1160min-1: --- dB

4.4 AccessoriesCoupling: flexible coupling with/without spacer

sleeveContact guard: coupling guardBaseplate: welded for the complete unit (pump

and motor), in torsion-resistant designIf a complete unit is supplied, coupling and coupling guardare provided by the supplier.Special accessories: as required

4.5 Dimensions and weightsFor dimensions and weights please refer to the generalarrangement drawing of the pump.

5 Installation at site

5.1 Safety regulationsEquipment operated in potentially explosiveatmospheres must comply with the relevant

explosion protection regulations. This is indicated on thepump name plate and motor name plate (see 2.9).

5.2 Checks to be carried out prior to installationAll structural work required must have been prepared inaccordance with the dimensions stated in the dimensiontable / general arrangement plan.The concrete foundations shall have sufficient strength(min. class X0) to ensure safe and functional installation inaccordance with DIN 1045 or equivalent standards.Make sure that the concrete foundation has set firmly beforeplacing the unit on it. Its surface shall be truly horizontal andeven. The foundation bolts shall be inserted in the baseplate.

Caution

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5.3 Installing the pump / unitAfter placing the pump on the foundation, align it with the helpof a spirit level placed on the shaft/discharge nozzle.Permissible deviation 0.2 mm/m. The correct distance betweenthe coupling halves as specified in the general arrangementdrawing must be observed. Shims shall be fitted between thebaseplate and the foundation itself; they shall always beinserted to the left and right of the foundation bolts and in closeproximity to these bolts. For a bolt-to-bolt clearance > 800 mm,additional shims shall be inserted halfway between theadjoining holes. All shims must lie perfectly flush.Insert the foundation bolts and set them into the foundationusing concrete.When the concrete has set, align the baseplateas described in Fig. 5 and tighten the foundation bolts evenlyand firmly. Then grout the baseplate using low-shrinkageconcretewith a standard particle size andawater/concrete ratioof � 0.5. The flowability must be produced with the help of asolvent. Secondary treatment of the concrete to DIN 1045 is anabsolute necessity.

Shim Shim

Foundation bolts

� 800Shim

Fig. 5 Fitting required shimsTo ensure low-noise operation, the unit can be mounted onvibration dampers (please confirm with KSB first). Expansionjoints can be fitted between pump and suction/discharge line.

5.3.1 Aligning the pump / driveThe pump unit consisting of pump, coupling and drive has beenmounted on a common baseplate and carefully aligned in themanufacturing works.The following instructions also apply to units not mounted on acommon baseplate.

After connecting the piping and priming thesystem, it is essential to re-check the alignment

at operating temperature.Incorrect alignment and inadmissible couplingdisplacement will affect the operating

behaviour and may result in damage to the bearings and shaftseals as well as premature coupling wear.Please note:The pump set is correctly aligned, if a straight-edge placedaxially on both coupling halves is the same distance from eachshaft at all points around the circumference. In addition, thedistance between the two coupling halves must remain thesame all around the circumference. Use a feeler gauge, awedge gauge or a dial micrometer to verify (see Fig. 6 andFig. 7).

Straight-edge

Straight-edge Gauge

a

a b

b

Fig. 6 Aligning the coupling with the help of a gauge anda straight-edge

a b

a b

Gauge

Straight-edge

Straight-edge

Fig. 7 Aligning a spacer-type couplingThe radial and axial deviation between the two coupling halvesmust not exceed 0.1 mm.The alignment of the pump and drive shall preferably bechecked by means of a dial micrometer. For this purposeremove the coupling spacer after having marked its installationposition by dotting marks (balancing condition).At the same time check themotor’s direction of rotation, with thepump decoupled (see 6.1.4). The direction of rotation mustcorrespond to the direction indicated by the arrow on the pump.Verify by switching themotor on and then off again immediately.Fig. 8 illustrates examples of possible dial micrometerarrangements.

1122:48

Fig. 8 Aligning a spacer-type coupling with a dialmicrometer

Admissible run-out of coupling face (axial) max. 0.1 mm.Admissible radial deviation, measured over the completecircumference, max. 0.2 mm.

5.3.1.1 Aligning the complete unitTo align the complete unit, undo bolt 901.4 and fixing bolts901.61 on the assembling aid (if any).Undo pump fastening elements and align pump and motor.(Compensate for any differences in height between pump andmotor by means of appropriately sized sheet packs under thefeet of the drive). On pump units with larger motors, horizontalmotor alignment shall be effected by means of alignmentdevices). Re-tighten the bolts on the pump foot and the motorbolts.If any, tighten fixing bolts 901.61 as well as bolt 901.4 andre-check alignment. For subsequent alignment at operatingtemperature proceed in the same way.If other couplings are used, please refer to the enclosedsupplementary operating instructions.

5.3.2 Place of installation

The volute casing and discharge cover take on roughlythe same temperature as the fluid handled. The bearing

bracket may not be insulated.Take the necessary precautions to avoid burns!

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5.4 Connecting the pipingNever use the pump itself as an anchoragepoint for the piping. The permissible pipeline

forces must not be exceeded (see section 4.3.5).Suction lift lines shall be laid with a rising slope towards thepump and suction head lines with a downward slope towardsthe pump. The pipelines shall be anchored in close proximity tothe pump and connected without transmitting any stresses orstrains. The nominal diameters of the pipelines shall be at leastequal to the nominal diameters of the pump nozzles. Themating flanges must be parallel to the pump flanges.It is recommended to install check and shut-off elements in thesystem, depending on the type of plant and pump. It must beensured, however, that the pump can still be drained anddismantled without problems.Thermal expansions of the pipelines must be compensated byappropriate measures so as not to impose any extra loads onthe pump exceeding the permissible pipeline forces andmoments.

An excessive, impermissible increase in the pipelineforces may cause leaks on the pump where the fluid

handled can escape into the atmosphere.Danger to life when toxic or hot fluids are handled!The flange covers on the pump suction and discharge nozzlesmust be removed prior to installation in the piping.

Please check if a strainer/filter should be fittedin the suction line during the commissioning

stage, in order to protect both the pump and the shaft seal fromdamage due to contamination from the plant.In order to avoid any marked deterioration of theNPSHavailable, which would have an adverse effect on thepump, the strainer has to be cleaned whenever required. It isrecommended to use a differential pressure gauge to detectany strainer clogging (see 6.1.6).

For installation on a foundation with vibration insulationplease take into account when connecting the piping

that the flexible elements at the baseplate may onlycompensate compressive and shearing strains within theadmissible limits. Tensile strains cannot be compensated for,therefore the flexible elements shall only be firmly fastened tothe foundation after the piping has been connected.

5.4.1 Auxiliary connectionsThe dimensions and locations of the auxiliary connections(cooling, heating, barrier liquid, flushing liquid, etc.) areindicated on the general arrangement plan or piping layout.

These connections are required for properfunctioning of the pump and are therefore of

vital importance!Modifications are only permitted after prior consultation with themanufacturer (see 2.7)!

5.4.2 Coupling guardIn compliance with the accident prevention regulationsthe pump must not be operated without a coupling

guard. If the customer specifically requests not to include acoupling guard in our delivery, then the operator must supplyone. In this case, it is important to make sure that the materialsselected for coupling and coupling guard are non-sparking inthe event of mechanical contact. KSB’s scope of supply meetsthis requirement.

5.5 Final checkRe-check the alignment as described in section 5.3 and verifythe correct distance between the coupling and the couplingguard.It must be easy to rotate the shaft by hand at the coupling.

5.6 Connection to power supplyConnection to the power supply must be effected by atrained electrician only. Check available mains voltage

against the data on themotor rating plateand selectappropriatestart-up method.We strongly recommend to use a motor protection device

(motor protection switch).In potentially explosive atmospheres, compliance withIEC60079-14 is an additional requirement for electrical

connection.

6 Commissioning, start-up / shutdownCompliance with the following requirements isof paramount importance. Damage resulting

from non-compliance shall not be covered by the scope ofwarranty.

6.1 CommissioningBefore starting up the pump make sure that the followingrequirements have been checked and fulfilled.If a constant-level oiler is provided, screw same into the tappinghole provided in the bearing bracket prior to adding the oil (see6.1.1).On cooled bearing brackets, fitting the constant-level oiler isdifficult due to the position of the cooling line. The connectionelbow of the constant-level oilermust be screwed in separately,after having removed the protective cage and oil reservoir.Afterwards, screw the oil reservoir back on and cover with theprotective cage.The connection between bearing bracket and constant-leveloiler shall be sealed with PTFE tape, if necessary.The operating data, the oil level, if applicable (6.1.1), and thedirection of rotation (6.1.4)must have been checked. The pumpmust have been primed (6.1.3).Also verify the following:- Make sure that the unit has been properly connected to the

electric power supply and is equipped with all protectiondevices.

- Make sure that all auxiliary lines (5.4.1) are connected andfunctioning.

- If the pump has been out of service for a longer period oftime, proceed in accordance with section 6.4.

On pumps delivered without a baseplate, the leakage line (partNo. 710.22) must be added as well.

6.1.1 LubricantsOil lubricated bearings

The bearing bracket has to be filled with lubricating oil. The oilquality required is outlined in section 7.2.2.3 and the quantity insection 7.2.2.4.Oil level in reservoirduring filling procedure

Vent / Fillerplug

Oil levelsight glass

Position of reservoir for toppingup oil

Oil level in bearing bracketand connection elbow

Fig. 9 Oil fillProcedure:Remove the protective cage of the constant-level oiler.Unscrew vent plug. Pour in the oil through the vent plug tappinghole after having hinged down the reservoir of theconstant-level oiler until oil appears in the vertical portion of theconnection elbow (Fig. 9).

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Then fill the reservoir of the constant-level oilerwith oil and snapit back into operating position. Screw vent plug in again. Aftera short time check whether the oil level in the reservoir hasdropped. It is important to keep the reservoir properly filled at alltimes!If access to the vent plug is difficult or impossible, e.g. in caseswhere the motor is arranged above the pump (piggy-backarrangement), the oil can be filled in through the connectionelbow of the constant-level oiler.

The oil level shall always be below the level ofthe vent opening arranged at the top edge of

the connection elbow.During pump standstill the oil level can be checked at the oillevel sight glass.

6.1.2 Shaft sealThe mechanical seal has been fitted prior todelivery. On variants with quench supply tank,

the tank must be fitted in accordance with the generalarrangement drawing (see also 6.1.3). Quench feed must alsobe provided during pump shutdown. On variants withpressurized dual mechanical seals, apply barrier pressure asspecified in the general arrangement drawing prior to startingup the pump (see 6.1.3). Barrierpressuremustalso beprovidedduring pump shutdown.

For external liquid supply, the quantities andpressure specified in the data sheet and

general arrangement drawing shall be applied.

6.1.3 Priming the pump and checks to be carried outBefore start-up, the pump, suction line and thermosyphonvessel, if any, must be vented and primed. The shut-off valve inthe suction line must be fully open.Fully open all auxiliary lines provided (flushing, barrier, coolingliquid, etc.) and check the throughflow.For water cooling, use suitable non-aggressive cooling waternot liable to formdeposits and not containing suspended solids.(Hardness: on average 5dH; (�1mmol/l); pH > 8, or conditionedand neutral with regard to mechanical corrosion).Inlet temperature tE = 10 to 30 �COutlet temperature tA max. 45 �C

Dry running of the pump will result inmechanical seal failure and must be

avoided!

6.1.3.1 CoolingIn general, the shaft seal must be cooled if thevaporization pressure of the fluid handled is

higher than the atmospheric pressure.Depending on the fluid handled, the system pressure and themechanical seal material, the limit may change (example: hotwater).

6.1.3.1.1 Cooling of the pumpThe casing cover, the bearing bracket and the casing supporton the baseplate can be cooled.pallow. = 10 barptest = 15 barCooling liquid quantities:

Fluid temperature [�C] Cooling liquidquantities [m3/h]

Casing cover< 250 0.3

Casing cover< 400 0.6

Bearing bracket200 1) / 250 bis 315 2)

0 2Bearing bracket> 315 3)

0.2

Support onbaseplate > 250 0.2

1) For n= 35001/min andn =2900 1/min in conjunctionwith triplebearingassembly. In all other cases from 250 �C!

2)Water cooling or fan impeller3)Water cooling (and optional fan impeller)

The cooling liquid quantities indicated are based on �t = max15 �C.

6.1.3.1.2 Cooling of heat exchangerFor mechanical seals with product circulation the followingcooling liquid quantities must be provided for the heatexchanger:

n=1/min Bearing bracket

B 02 B 03 B 05 B 06

m3/h

1750/1450

0.35 0.5 0.6 0.8

3500/2900

1.2 1.2 1.8 -

Fig. 10 Cooling liquid quantity

6.1.3.2 HeatingThe casing cover can be heated by feeding hot water or steam(up to t = 150 �C, p = 10 bar). In this case the casing cover issealed off with O-rings made of ethylene propylene.

Observe permissible temperatureclasses.

6.1.4 Checking the direction of rotationWhen the unit has been connected to the electric power supply,verify the following (local and national regulations have to betaken into account separately):

For trouble-free operation of the pump, thecorrect direction of rotation of the impeller is of

paramount importance. If running in the wrong direction ofrotation, the pump cannot reach its duty point; vibrations andoverheating will be the consequence. The unit or the shaft sealmight be damaged.Correct direction of rotation:The direction of rotation must correspond to the directionindicated by the arrow on the pump. Verify by switching themotor on and then off again immediately.

On pumps fitted with inducers, the direction ofrotation must only be checked with the

pump/motor coupling removed, otherwise the inducer maywork loose and damage the pump.

Before checking the direction of rotation make sure thatthere is no foreign matter in the pump casing.

Never hold your hands or any other objects into the pump!Do not run the pump without liquid whilechecking the direction of rotation! If it is

not possible to fill the pump, the direction of rotation must bechecked with the pump/motor coupling removed.If the pump runs in the wrong direction of rotation, interchangetwo of the three phases in the control cabinet or motor terminalbox.The safety instructions set forth in section 2.9.3 must becomplied with.

6.1.5 Cleaning the plant pipingThe cleaning operation mode and duration for flushingand pickling service must bematched to the casing and

seal materials used.

6.1.6 Start-up strainerIf a start-up strainer has been fitted to protect the pumps againstdirt and/or to retain contamination from the plant, the strainer’scontamination level must be monitored by measuring thedifferential pressure so as to ensure adequate inlet pressure forthe pump.For installation andmonitoring, see additional instruction sheet.

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6.1.7 Start-upBefore starting the pump, ensure that the shut-off valve in thesuction line is fully open! The pump may be started up againsta closed discharge-side swing check valve or slightly openshut-off valve. Only after the pump has reached full rotationalspeed shall the shut-off valve in the discharge line be openedslowly and adjusted to complywith the duty point.Whenstartingup against an open discharge-side shut-off valve, take theresulting increase in input power into account!

Pump operation with the shut-off valvesin the discharge and suction pipes closed

is not permitted.The permissible pressure and temperature limits might beexceeded. In extreme cases, the pump may burst.

After the operating temperature has beenreached and/or in the event of leakage, switch

off the unit allow to cool down and re-tighten the bolts betweenvolute casing and casing cover. Permissible tightening torquessee 7.5.3.

Check the coupling alignment at operatingtemperature as described in section 5.3.1 and

re-align, if necessary.

6.1.8 ShutdownClose the shut-off valve in the discharge line.If the discharge line is equipped with a non-return or checkvalve, the shut-off valve may remain open. If shut-off is notpossible, the pump will run in reverse direction.

This may cause damage to mechanical sealswhich are not bi-directional!

The reverse runaway speed must be lower than the ratedspeed.Switch off the drive, making sure that the unit runs downsmoothly to a standstill.Close the auxiliary lines but do not turn off the cooling liquidsupply, if any, until the pump has cooled down.Please refer to section 6.1.2!In the event of frost and/or prolonged shutdowns, the pump -and the cooling chambers, if any -must be drained or otherwiseprotected against freezing.

6.2 Operating limitsThe pump’s/unit’s application limits regarding pressure,temperature and speed are stated on the data sheetand

must be strictly adhered to!If a data sheet is not available, contact KSB!

6.2.1 Temperature of the fluid handled, ambienttemperature, bearing temperature

Do not operate the pump at temperaturesexceeding those specified on the data sheet or

the name plate unless the written consent of the manufacturerhas been obtained. Damage resulting from disregarding thiswarning will not be covered by the KSB warranty.Bearing bracket temperature see 7.2.1.

The safety instructions set forth in section 2.9 must becomplied with.

6.2.1.1 Heating the stand-by pumpTo make sure that the stand-by pump is operational at all timesand to keep it warm, no special precautions need to be taken,provided- all cooling points are in operation and- the permissible nozzle forces and moments are not

exceeded.For extreme operating conditions, please contact KSBPegnitz.

6.2.2 Switching frequencyTo prevent high temperature increases in the motor andexcessive loads on the pump, coupling, motor, seals andbearings, the switching frequency shall not exceed thefollowing number of start-ups per hour (S).

Motor rating (kW) max. S (start-ups/h)

up to 12 15

up to 100 10

more than 100 5

If the above switching frequencies are exceeded, pleasecontact the motor manufacturer or KSB.

6.2.3 Density of fluid pumpedThe power input of the pump will increase in proportion to thedensity of the fluid pumped. To avoid overloading of the motor,pumpand coupling, the density of the fluid must comply with thedata specified on the purchase order.

6.2.4 Abrasive fluidsWhen the pump handles liquids containing abrasivesubstances, increased wear of the hydraulic system and theshaft seal are to be expected. The intervals recommended forservicing and maintenance shall be shortened.

6.2.5 Minimum/Maximum flowFor max. flow Qmax please refer to the characteristic curves.Unless other limits are specified in the characteristic curves ordata sheet, the minimum flow for50 Hz and � = 1.2 kg/dm360 Hz and � = 1.0 kg/dm3is Qmin = 0.3 x QOpt.Qopt = optimum efficiencyThe data refer to water and water-like liquids. However, if thephysical properties of the fluids handled are different fromwater, the calculation formula belowmust be used to check if anadditional heat build-up may lead to a dangerous temperatureincrease at the pump surface. If necessary, the minimum flowmust be increased.

T o = T f + � �

g * H� � = * ( 1 - � )

c * �

c Specific heat [J / kg K]g Acceleration due to gravity [m/s2]H Pump head [m]T f Temperature of fluid handled [�C]T o Temperature of casing surface [�C]� Pump efficiency at duty point [-]� � Temperature difference [�C]

6.3 Shutdown / storage / preservationEach KSB pump leaves the factory carefully assembled. Ifcommissioning is to take place some time after delivery, werecommend that the following measures be taken for pumpstorage.

6.3.1 Storage of new pumps- New pumps are supplied by our factory duly prepared for

storage. Maximum protection for up to 12 months, if thepump is properly stored indoors.

- Store the pump in a dry location.- Rotate the shaft by hand once a month.

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6.3.2 Measures to be taken for prolonged shutdown1.The pump remains installed; periodic check of operationIn order tomake sure that the pump is always ready for instantstart-up and to prevent the formation of deposits within thepump and the pump intake area, start up the pump setregularly once a month or once every 3 months for a shorttime (approx. 5minutes) during prolonged shutdown periods.Prior to an operation check run ensure that there is sufficientliquid available for operating the pump.

2.The pump is removed from the pipe and storedBefore putting the pump into storage, carry out all checksspecified in sections 7.1 to 7.4. Then apply appropriatepreservatives:- Spray-coat the inside wall of the pump casing, and inparticular the impeller clearance areas,with a preservative.Spray the preservative through the suction and dischargenozzles. It is advisable to close the pumpnozzles (e.g.withplastic caps or similar).

6.4 Returning to service after storageBefore returning the pump to service, carry out all checks andmaintenance work specified in sections 7.1 and 7.2.

In addition, the instructions laid down in the sections on”Commissioning” (6.1) and ”Operating Limits” (6.2)must

be observed.

Immediately following completion of the work, allsafety-relevant and protective devices must be

re-installed and/or re-activated.

7 Servicing / maintenance

7.1 General instructionsThe operator is responsible for ensuring that all maintenance,inspection and installation work be performed by authorized,qualified specialist personnel who are thoroughly familiar withthe manual.A regular maintenance schedule will help avoid expensiverepairs and contribute to trouble-free, reliable operation of thepump with a minimum of maintenance expenditure and work.

Work on the unit must only be carried out with theelectrical connections disconnected. Make sure

that the pump set cannot be switched on accidentally(danger to life!).

Pumps handling liquids posing health hazardsmust be decontaminated. When draining the fluid

see to it that there is no risk to persons or the environment.All relevant laws must be adhered to (danger to life)!

7.2 Servicing / inspection

7.2.1 Supervision of operation

The pump must run quietly and free fromvibrations at all times.

The pump must never be allowed to run dry.Prolonged operation against a closed shut-off valve isnot permitted. When operating the pump set with the

shut-off valve in the discharge line slightly open for a shortperiod of time, the permissible pressure and temperature limitsmust not be exceeded.

A special design is required to comply with temperatureclass T6 in the bearing area. In such cases, and if am-

bient temperature exceeds 40 �C, contact the manufacturer.Verify correct oil level as described in section 6.1.1.The shut-off elements and the auxiliary feed lines must not beclosed during operation.Any stand-by pumps installed shall be started up regularly, e.g.

once a week, to keep them operational. Attention shall be paidto the correct functioning of the auxiliary connections. Thecooling systemmust be thoroughly cleaned at least once a yearto ensure proper cooling. Take the pump out of service for thispurpose.

If the flexible coupling elements begin to showsigns of wear, they must be replaced in due

time. Re-align the coupling as described in section 5.3.1.

7.2.2 Lubrication and lubricant change

7.2.2.1 LubricationThe rolling element bearings are lubricated withmineral oil. Thelubricant change intervals as well as the required quantity andquality are specified below.

7.2.2.2 Oil change (operating hours)

Temperatureat the bearing

First oil changeafter ..... operat-

ing hours

All subsequent oilchangesafter .....

operating hours

up to 70 �C 300 8500 *)

70�C - 80�C 300 4200 *)

80�C - 90�C 300 2000 *)

*) at least once a yearProcedure:Remove screwed plug below the bearing bracket and drain offthe oil. After drainage of the bearing bracket, screw in the plugagain and fill with fresh oil as described in section 6.1.1.

Please observe the local laws applicable to thedisposal of such substances.

7.2.2.3 Oil quality

Designation Lubricating oil CLP46DIN 51517

or HD 20W/20 SAESymbol to DIN 51502 VKinematic viscosity at 40�CFlash point (to Cleveland)Solidification point (pour point)Application temperature *)

46 �4 mm2/s+ 175�C-15�C

higher than permiss-ible bearing tempera-

ture*) For ambient temperatures below -10�C another suitable lubricating oiltype must be used.Request particulars.

7.2.2.4 Oil quantity

Bearing bracket Oil quantity in bearingbracket in litres

B 02B 03B 05B 06

0.91.82.55.7

7.3 Drainage / disposalIf the pump was used for handling liquidsposing health hazards, see to it that there is no

risk to persons or the environment when draining the fluid. Allrelevant laws must be heeded. If required, wear safety clothingand a protective mask!If the fluids handled by the pumps leave residues which mightlead to corrosion when coming into contact with atmospherichumidity, or which might ignite when coming into contact withoxygen, then the unit must be flushed through, neutralized, andthen for drying purposes anhydrous gasmust be blown throughthe pump.

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Use connections 6B to drain the pump set.The flushing fluid used and any liquid residues in the pumpmustbe properly collected and disposed of without posing any riskto persons or the environment.

7.4 DismantlingBefore dismantling the pump, secure it so as to makesure it cannot be switched on accidentally. The shut-off

valves in the suction and discharge lines must be closed.

The pump must have cooled down to ambienttemperature, pump pressure must have been

released and the pump must have been drained.Dismantling and reassembly must always be carried out inaccordance with the relevant sectional drawing.

7.4.1 Fundamental instructions and recommendationsRepair andmaintenance work to the pumpmust only be carriedout by specially trained personnel, using original spare parts(see 2.7).Observe the safety regulations laid down in section 7.1.Any work on the motor shall be governed by thespecifications and regulations of the respective motorsupplier.Dismantling and reassembly must always be carried out inaccordance with the relevant general assembly drawing.The general assembly drawing and other relevantdocuments are found in the annex. The dismantlingsequence can be derived from the general assemblydrawing.In case of damage you can always contact our servicedepartments.

7.4.2 Dismantling (general)1. Drain the oil as described in 7.2.2.2.2. Remove the coupling guard.3. Remove the coupling spacer, or if not applicable, remove

the drive.If required, refer to the additional sheet concerning thecoupling!

4. Disconnect and remove all auxiliary pipework. Remove fanhood 882, fan hub 881 and fan impeller 831.02, ifapplicable.

5. Loop a rope tightly around the top stay of bearing bracketlantern 330.

6. Unscrew hex. nuts 920.01 and pull complete bearingbracket 330 with shaft 210 and impeller 230 out of volutecasing 102 using forcing screws 901.30. Clean the screwthreads beforehand. Note position of joint ring 411.10.

7. Bearing brackets B02 to B05:Unscrew impeller nut 922.01 with threaded insert(right-hand thread) and remove gasket 411.31 (if fitted) andlockwasher 931.02.Bearing bracket B06:Unscrew impeller hub cap 260 (right-hand thread) andremove joint ring 411.31. Bend back lockwasher 931.02,remove impeller screw 906 with lockwasher and disc550.87.All bearing bracket sizes:Pull off impeller 230 with a pull-off device and remove key940.01. If a throttling bush is fitted, undo grub screws904.38 and remove throttling bush 542.02.

8. Engage assembling jigs, if any, in the groove of shaftprotecting sleeve 524.01 by loosening the hex. head boltsfor fitting the assembling jigs and re-tightening them.

9. Undo hex. nuts 920.15 and separate bearing bracket 330from the casing cover, using forcing screws 901.31. Shaftprotecting sleeve 524.01 (if fitted) with the completemechanical seal assembly will be pulled off the shaft in theprocess. Take care not to damage O-rings 412.01/.31 (iffitted).

10. Undo hex. nut 920.02 and remove seal cover 471.01.Cooled version: Note position of O-rings 412.01/.31.Pull seal cartridge out of casing cover 161.Please observe the mechanical seal drawing!Proceed in line with this drawing if further dismantling of themechanical seal is required. If required, refer to thesupplementary sheet!

11. Undo the hex. socket head cap screw in the coupling huband use an extractor to pull the coupling half off the pumpshaft. Remove key 940.02.

12. Undo grub screws 904.41/.42 and remove throwers507.01/.02.Undo hex. socket head cap screws 914.01 andtake off the pump end bearing cover 360.01 with gasket400.01. Undo hex. head bolts 901.37 and remove themotor end bearing cover 360.02. Remove O-ring 412.22,if required.

13. Carefully drive shaft 210 together with angular contact ballbearing 320.02 and the inner race of cylindrical rollerbearing 322.01 (on special pump design including oilthrower 508.01) out of the bearing bracket towards thedrive end.

14. Remove cylindrical roller bearing 322.01 (roller cage) fromthe bearing bracket.Heat up the inner race of thecylindricalroller bearing and pull it off the shaft. If oil thrower 508.01is fitted, remove grub screw 904.20 and pull the oil throweroff the shaft.

15. Bend back lockwasher 931.01, unscrew keywayed nut920.21 (right-hand thread), remove lockwasher.

16. Heat up angular contact ball bearing 320.02 and pull it offthe shaft.

17. Clean all components and inspect them for signs of wear.Re-work damaged components or replace by new ones.

7.5 Reassembly

7.5.1 General instructionsThe pump shall be reassembled in accordance with the validrules of engineering practice.Clean all dismantled components and check them for signs ofwear. Verify the dimensions given in section 7.5.5. Damagedor worn components are to be replaced by original spareparts. Make sure that the seal faces are clean and that thesealing elements are properly fitted.Always use new sealing elements (O-rings/gaskets) wheneverthe pump is reassembled.Make sure that newgaskets have thesame thickness as the old ones.Gaskets made of graphite or other asbestos-free materialsmust always be fitted without using lubricants such as coppergrease or graphite paste.Avoid the use of mounting aids as far as possible. Should amounting aid be required after all, use a commercially availablecontact adhesive (e.g. ”Pattex”). The adhesive shall only beapplied at selected points (3 to 4 spots) and in thin layers.Do not use cyanoacrylate adhesives (quick-setting adhesives)!If in certain cases mounting aids or anti-adhesives other thandescribed herein are required, please contact the sealingmaterial manufacturer.

All graphite gaskets must only be usedonce!

Never use O-rings that have been glued together frommaterialsold by the metre.

Do not coat O-rings with graphite or similarproducts. Use animal fats or silicone-base or

PTFE-base lubricants instead. O-rings made of ethylenepropylene shall only be coatedwith silicone grease or soft soap;never use mineral oils or greases!

The locating surfaces of the individual components must becoated with graphite or similar before reassembly. The sameapplies to screwed connections.

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7.5.2 Reassembly (general)Reassembly is effected in reverse order to dismantling. Use thegeneral assembly drawing and the list of components fororientation.All screws and bolts must be properly tightened duringassembly. For required torques see 7.5.3.The following additional points must be observed:1. Use only the bearing types and sizes specified in section

4.3.4. Heat up angular contact ball bearing 320.02 and theinner race of cylindrical roller bearing 322.01 in an oil bathor by means of an induction heater to approx. 80 �C. Priorto fitting the inner race of the cylindrical roller bearing, slipthe oil thrower, if any (special pump design), onto the shaftso that the side with the larger diameter rests against theshaft shoulder. Fasten with grub screw 904.20. Push theinner race of the cylindrical roller bearing and the angularcontact ball bearing onto the shaft until they will not go anyfurther.

Angular contact ball bearings 320.02mustbe installed in ’O’ arrangement.

(See section 9.)Angular contact ball bearings installed in pairs must alwaysbe from the samemanufacturer. Bearing brackets B 03 andB 05: Make sure that discs 550 are positioned correctly.After having mounted angular contact ball bearings320.02, screw on and tighten keywayed nut 920.21 usinga C-wrench and without fitting lockwasher 931.01. Let theball bearings cool down to approx. 5 �C above ambienttemperature. Re-tighten the keywayed nut, then unscrewit again. Put a few spots of Molykote on the contact facesof the lockwasher and of the keywayed nut, slip onlockwasher, tighten keywayed nut and bend overlockwasher.

2. Cooled version: Note position of O-rings412.01/.31.

3. For mounting the mechanical seal, proceed as describedon the supplementary sheet, if necessary. Observe theinstructions in section 7.5.4.

4. Check the sliding fit of the shaft protecting sleeve on theshaft, if fitted.

5. Carefully insert the impeller joint ring, making sure the ringand sealing surfaces are clean.

6. Slip throwers 507.01/.02 onto the respective shaft shoulderin such a way that there is a gap of approx. 2 mm betweenthe throwers and the bearingcovers. Lockwith grubscrews904.41/.42.

It is of paramount importance that metal-to-metalcontact is established between the casing cover

and the volute casing, and the bearing bracket and thecasing cover.

7. Disengage the assembling jigs from the groove in the shaftprotecting sleeve, if applicable.

8. After installation in the pump casing, which has remainedin the piping, the coupling alignment must be checked asdescribed in section 5.3.1.

9. Fill in oil as described in section 6.1.1.

7.5.3 Tightening torques

Impeller nut 922.01 or impeller screw 906 shallbe re-tightened some 20 to 30 minutes after

assembly. Bend over lockwasher 931.06.

The screwed connections (item 902.01/920.01) between the volute casing and the

casing cover must be tightened using a torque wrench.

The tightening torques given in the table shall apply. Thesevalues are determined on the basis of a friction coefficient = 0.12 1).Max. permissible tightening torques 2) in Nm for studs toDIN 938/939 with hex. nuts to ISO 4032.

1) The torques given apply to the initial tightening of brand-new threads.2) After repeated tightening of the threads and in case of good lubricationthe values shall be reduced by 15 to 20 %.

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Material(Asia and America)

A 193 Grade B7/B16 /A 540 Grade B24

A 193 Grade B7/B16 10.9 --- CF6M/Type 316

Material(Europe)

1.7709/1.6772 (Monix 3K) C35E+QT 8.8 A4-70 1.4571/1.4021

Pumpsize

Bearingbracket

On casingstud 902.01

On casing coverstud 902.15

On bearing brackethex. head bolt 901.37

On mech. seal coverstud 902.02

On impeller impeller nut922.01 or impeller screw906

Qty. Thread Tighteningtorque Nm

Qty. Thread Tighten-ing

torqueNm

Qty. Thread

Tighten-ing

torqueNm

Qty. Thread

Tighten-ing

torqueNm

Qty. Thread Tighten-ing

torqueNm

25-18040-180

B02S 12 M 16 163 3)280 4)

4 M 16 83 4 M 10 45 4 M 16 133 1 M14x1.5 80 5)

25-23040-230

16280

40-231 B02L M16x1.5 130 5)

40-18150-180

12M16x1.5 130

40-28040-281

16 M 20 330 3)565 4)

40-361 20565

80-180100-180

B 03 12 M 16 163 3)280 4)

4 M 20 168 4 M 12 77 4 M 16 133 1 M20x1.5 250 5)

50-23080-230100-230150-230

M 20 330 3)565 4)

50-28080-280100-280

16

50-36080-360

20

50-450 M 24 565 3)970 4)

150-280200-280

B05S 12 M 24 565 3)970 4)

4 M 24 290 4 M 16 190 4 M 16 133 1 M24x1.5 350 5)

100-360150-360

16970

80-450100-450

20

200-360 B05L 16 M 24 565 3)970 4)

4 M 24 290 4 M 16 190 4 M 16 133 1 M30x1.5 600 5)

150-450200-450

20

150-501 30 M 16 163 3) / 2804)

4 M24 290 4 M16 190 4 M16 133 1 M30x1.5 600 5)

200-401 24 M 16 163 3) / 2804)

200-501 M 20 330 3) / 5654)

250-401 M 16 163 3) / 2804)

250-501 M 20 330 3) / 5654)

150-630 B06 20 M 24 5653)4)

4 M24 290 8 M 16 190 4 M20 270 1 M 30x1.5 400 6)5)200-670

0624

5659704)

90 8 6 90 0 0 30 5 00300 5)

250-630 20250-710 24

3) For material 1.7709 / A 193 Grade B7/B164) For material 1.6772 (Monix 3K) / A 540 Grade B245) For material 1.4571 / A 276 Type 316Ti6) For material 1.4021 / A 276 Type 420The values do not apply, if general assembly drawings or otherinstructions state different values.

Re-tighten the above connections 24 hoursafter assembly using the torques indicated.

7.5.4 Mechanical seal installationThe following rules must be observed when mounting themechanical seal:Extreme care and cleanliness during installation are ofoverriding importance for the trouble-free operation of themechanical seal.The protective wrapping of the contact faces shall only beremoved immediately before assembly takes place.

If the mechanical seal to be installed is not of cartridge design:After inserting the seat ring, check whether it is plane-parallel inrelation to the casing part. (Max. deviation: 0.02 mm).The surface of the shaft must be absolutely clean and smooth,and the mounting edge must be chamfered. When sliding therotating assembly on the shaft, take appropriate precautions toprotect the shaft surface from damage.On pumps with pressurized double mechanical seals themechanical seal chamber must be properly vented and therequired pressure specified in the general arrangementdrawing must be applied (also during standstill).Quench liquid supply must also be ensured during pumpstandstill.If necessary, refer to the supplementary operating instructions!

RPH

17

7.5.5 Clearances

Pumpsize

Suction-side casingwear ring

Nominal ID 7)

Clearance gap(standard)

Min. clearance gapto API 610

Discharge-sidecasing wear ringNominal ID7)

Clearance gap(standard)

Min. clearance gapto API 610

25-180 70 0.5 1) 0.30 70 0.5 1) 0.3025-230 70 0.5 1) 0.30 70 0.5 1) 0.3040-180 80 0.5 1) 0.33 80 0.5 1) 0.3340-230 80 0.5 1) 0.33 80 0.5 1) 0.3340-280 85 0.6 2) 0.33 120 0.6 2) 0.4040-181 95 0.6 2) 0.35 95 0.6 2) 0.3540-231 95 0.6 2) 0.35 95 0.6 2) 0.3540-281 95 0.6 2) 0.35 120 0.6 2) 0.4040-361 95 0.6 2) 0.35 165 0.6 2) 0.4550-180 120 0.6 2) 0.40 120 0.6 2) 0.4050-230 120 0.6 2) 0.40 120 0.6 2) 0.4050-280 120 0.6 2) 0.40 120 0.6 2) 0.4050-360 120 0.6 2) 0.40 165 0.6 3) 0.4550-450 120 0.6 2) 0.40 195 0.7 4) 0.4880-180 135 0.6 3) 0.43 135 0.6 3) 0.4380-230 135 0.6 3) 0.43 135 0.6 3) 0.4380-280 135 0.6 3) 0.43 135 0.6 3) 0.4380-360 135 0.6 3) 0.43 165 0.6 3) 0.4580-450 135 0.6 3) 0.43 195 0.7 4) 0.48100-180 165 0.6 3) 0.45 165 0.6 2) 0.45100-230 165 0.6 3) 0.45 165 0.6 2) 0.45100-280 165 0.6 3) 0.45 165 0.6 2) 0.45100-360 165 0.6 3) 0.45 165 0.6 2) 0.45100-450 175 0.6 3) 0.45 195 0.7 4) 0.48150-230 195 0.7 4) 0.48 195 0.7 4) 0.48150-280 195 0.7 4) 0.48 195 0.7 4) 0.48150-360 195 0.7 4) 0.48 195 0.7 4) 0.48150-450 200 0.7 4) 0.48 235 0.7 4) 0.53200-280 225 0.7 4) 0.50 225 0.7 4) 0.50200-360 235 0.7 4) 0.53 280 0.7 5) 0.58200-450 235 0.7 4) 0.53 280 0.7 5) 0.58150-501 225 0.7 5) 0.5 225 0.7 5) 0.5200-401 250 0.6 3) 0.53 250 0.6 3) 0.53200-501 255 0.6 5) 0.55 255 0.6 5) 0.55250-401 330 0.75 5) 0.63 330 0.75 5) 0.63250-501 310 0.6 5) 0.6 310 0.6 5) 0.6150-630 240 0.7 5) 0.53 290 0.7 5) 0.58200-670 290 0.6 3) 0.58 290 0.6 3) 0.58250-630 330 0.75 6) 0.63 340 0.75 6) 0.63250-710 310 0.7 5) 0.6 340 0.85 6) 0.63

1) Tolerance + 0 3) Tolerance + 0 5) Tolerance + 0- 0.050 - 0.050 - 0.080

2) Tolerance + 0 4) Tolerance + 0 6) Tolerance + 0- 0.050 - 0.080 - 0.1

7) Nom. diameter rounded to full mmCharacteristic curves are based on standard clearance gaps. All dimensions in mm.

Fig. 11 Clearance gapsAPI requests larger clearance gaps for temperatures higherthan 200 �C if impeller or impeller wear rings are made of

EN-Norm Closest ASTM equivalent1.4408 / 1.4409 A 743 Grade CF8M / CF3M1.4580 A 276 Grade 316CB1.4552 A 743 Grade CF8C1.4308 A 743 Grade CF81.4571 A 276 Type 316Ti1.4581 A 351 Grade CF10MC1.4550 A 182 Grade F347

Increased gaps are KSB-standard.

RPH

18

7.6 Spare parts stockWhen ordering spare parts please always quote the followingdata:Type series: here: RPHPump size:Works No.:This data is stated on the pump name plate.

7.6.1 Recommended spare parts stock for 2 years’ operation to DIN 24 296

Part No. Description Number of pumps (including stand-by pumps)

2 3 4 5 6 + 7 8 + 9 10 and more

Quantity of spare parts

210

230

320.02

322.01

330

433

502.01/.02 1)

503.01/.02 1)

542.02

---

Shaft

Impeller

Angular contact ball bearing (set)

Cylindrical roller bearing

Bearing bracket

Mech. seal Spring-loaded ring

Seat ring

O-rings

Secondary seals at seat ring

Spring (set)

Casing wear ring

Impeller wear ring

Throttling bush

Other sealing elements

1

1

1

1

-

2

2

2

2

1

2

2

1

4

1

1

1

1

-

3

3

3

3

1

2

2

1

6

1

1

2

2

-

4

4

4

4

1

2

2

2

8

2

2

2

2

-

5

5

5

5

1

3

3

2

8

2

2

2

2

-

6

6

7

7

2

3

3

2

9

2

2

3

3

1

7

7

9

9

2

4

4

3

10

20 %

20 %

25 %

25 %

2 pcs.

90 %

90 %

100 %

100 %

20 %

50 %

50 %

30 %

100 %

Fig. 12 Recommended spare parts for two years’ operation1) if fitted

Bearingbracket

Impeller

Angularcontactballbearing

Oilthrower

Cylindricalrollerbearing

Bearingbracket

Throttling

bush

Bearingcover,pumpend

Bearingcover,motorend

Mechanicalseal

Sealcover

Casingwearring,suctionside

1)

Throw

er,m

otorend

1)

Impellernut

Pum

psize

Volutecasing

Shaft

Jointring

Casingwearring,dischargeside

1)

Impellerwearring,suctionside

1)

Impellerwearring,dischargeside

1)

Throw

er,pum

pend

1)

102

210

230

320.02

322.01

330

360.01

360.02

411.10

433

471.01

502.01

502.02

503.01

503.02

507.01

507.02

508.01

542.01

922.01

161

Casingcover,cooled

Casingcover,uncooled

260

Impellerhubcap

906

Impellerscrew

RPH

19

7.6.2 Interchangeability of Pump Components

Part No. / Description

B02S 25-180

25-230

40-180

40-230

1

2

3

4

1

2

1

2

1

2

1

2

1

1

1

1

1

2

3

4

-

-

-

-

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

2

1

2

1

1

1

1

1

1

1

1

1

1

2

2

1

1

2

2

1

1

2

2

1

1

2

2

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

-

-

-

-

1

1

1

1

B02L 40-280

40-181

40-231

40-281

40-361

50-180

5

6

7

8

9

10

5

3

4

5

6

7

5

3

4

5

6

7

2

2

2

2

2

2

5

6

7

8

9

10

-

-

-

-

-

-

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

3

1

2

3

4

1

1

1

1

1

1

1

1

1

1

1

1

1

3

4

4

4

4

5

5

4

4

5

7

5

3

4

4

4

4

5

5

4

4

5

7

5

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

1

2

2

2

2

2

2

-

-

-

-

-

-

2

2

2

2

2

2

B03 50-230

50-280

50-360

50-450

80-180

80-230

80-280

80-360

100-180

100-230

100-280

150-230

11

12

13

14

15

16

17

18

19

20

21

22

8

9

10

11

12

12

9

13

15

16

17

20

8

9

10

11

12

12

9

13

15

16

17

20

3

3

3

3

3

3

3

3

3

3

3

3

11

12

13

14

15

16

17

18

19

20

21

22

-

-

-

-

-

-

-

-

-

-

-

-

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

3

4

5

2

2

3

4

2

2

3

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

5

5

5

5

6

6

6

6

7

7

7

9

5

5

7

9

6

6

6

7

7

7

7

9

5

5

5

5

6

6

6

6

7

7

7

9

5

5

7

9

6

6

6

7

7

7

7

9

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

2

3

3

3

3

3

3

3

3

3

3

3

3

-

-

-

-

-

-

-

-

-

-

-

-

3

3

3

3

3

3

3

3

3

3

3

3

B05S 80-450

100-360

100-450

150-280

150-360

200-280

23

24

25

26

27

28

14

18

19

21

22

24

14

18

19

21

22

24

4

4

4

4

4

4

23

24

25

26

27

28

-

-

-

-

-

-

3

3

3

3

3

3

3

3

3

3

3

3

3

3

3

3

3

3

3

3

3

3

3

3

3

3

3

3

3

3

5

4

5

3

4

5

3

3

3

3

3

3

3

3

3

3

3

3

6

7

8

9

9

11

6

7

8

9

9

11

6

7

8

9

9

11

6

7

8

9

9

11

3

3

3

3

3

3

3

3

3

3

3

3

3

3

3

3

3

3

4

4

4

4

4

4

-

-

-

-

-

-

4

4

4

4

4

4

B05L 150-450

200-360

200-450

29

30

31

23

25

26

23

25

26

5

5

5

29

30

31

-

-

-

3

3

3

3

3

3

3

3

3

4

4

4

3

3

3

5

4

5

3

3

3

3

3

3

10

12

12

12

13

13

10

12

12

12

13

13

3

3

3

3

3

3

3

3

3

5

5

5

-

-

-

5

5

5

B05L 150-501

200-401

200-501

250-401

250-501

32

33

34

35

36

27

28

29

30

31

27

28

29

30

31

5

5

5

5

5

32

33

34

35

36

-

-

-

-

-

3

3

3

3

3

3

3

3

3

3

3

3

3

3

3

3

3

3

3

3

3

3

3

3

3

6

7

6

7

6

3

3

3

3

3

3

3

3

3

3

11

14

15

16

17

11

14

15

16

17

11

14

15

16

17

11

14

15

16

17

3

3

3

3

3

3

3

3

3

3

3

3

3

3

3

5

5

5

5

5

-

-

-

-

-

5

5

5

5

5

B06 150-630

200-670

250-630

250-710

37

38

39

40

32

33

34

35

32

33

34

35

6

6

6

6

37

38

39

40

1

1

1

1

4

4

4

4

4

4

4

4

4

4

4

4

4

4

4

4

4

4

4

4

8

9

8

9

4

4

4

4

4

4

4

4

18

20

21

23

19

20

22

24

18

20

21

23

19

20

22

24

4

4

4

4

4

4

4

4

4

4

4

4

6

6

6

6

1

1

1

1

-

-

-

-

Number of differ-

ing spare parts 40 35 35 6 40 1 4 4 4 4 4 9 4 4 24 24 4 4 4 6 1 5

Components featuring the same number in a column are interchangeable.1) Parts with identical part No. and identical number are interchangeable.

Fig. 13 Interchangeability of pump components

Pum

pdeliversinsufficientflowrate

Motorisoverloaded

Excessive

pumpdischargepressure

Excessive

bearingtemperature

Leakageatthepump

Excessive

leakageattheshaftseal

Vibrations

duringpumpoperation

Excessive

riseoftemperatureinside

thepump

RPH

20

8 Trouble-shooting

Cause Remedy 1)

* Pump delivers against an excessively high dischargepressure.

Re-adjust to duty point.

* Excessively high back pressure. Check plant for impurities.Increase the speed (turbine, I.C. engine).

* * * Pump or piping are not completely vented or primed. Vent and/or prime.* Supply line or impeller clogged. Remove deposits in the pump and/or piping.* Formation of air pockets in the piping. Alter piping layout. / Fit a vent valve.

* * * Pump is warped or sympathetic vibrations in the piping. Check pipelineconnections andsecure fixingof pump; if re-quired, reduce the distances between the pipe clamps.Fix the pipelines using anti-vibration material.

* * * Suction head is too high/NPSH- available (positive suctionhead) is too low.

Check/Alter liquid level. / Fully open shut-off valve in thesuction line / Change suction line if the friction losses in thesuction line are too high.Check any strainers installed/suction opening.Observe permissible speed of pressure fall.

* Increased axial thrust. 2) Correct rotor adjustment.

* Air intake at the shaft seal. Fit new shaft seal.

* Wrong direction of rotation. Interchange two of the phases of the power supply cable.* * Motor is running on two phases only. Replace the defective fuse.

Check the electric cable connections.

* Speed is too low. 2) Increase speed.* Defective bearing(s). Fit new bearing(s).

* * * Insufficient rate of flow. Increase the minimum rate of flow.* * Wear of internal pump parts. Replace worn components by new ones.* * Pump back pressure is lower than specified in the pur-

chase order.Adjust duty point accurately.

* Density or viscosity of the fluid pumped is higher thanstated in the purchase order.

2)

* Use of unsuitable materials. Change the material combination.* * Speed is too high. Reduce speed. 2)

* Tie bolts / gaskets Tighten the bolts / Fit new sealing elements.* Worn shaft seal. Fit new shaft seal.* Lack of cooling liquid or dirty cooling chamber. Increasecooling liquidquantity /Cleanout coolingchamber

/ Purify/clean cooling liquid.

* Vibrations during pump operation Correct suctionconditions /Re-align thepump /Re-balancethe impeller / Increasepressureat thepump suctionnozzle.

* * * The unit is misaligned. Check the coupling; re-align, if required.* Insufficient or excessive quantity of lubricant or unsuit-

able lubricant.Top up, reduce or change lubricant.

* Non-compliance with specified coupling distance. Correct distance according to the general arrangementdrawing.

* Operating voltage is too low. Increase the voltage.* Rotor is out of balance. Clean impeller / Re-balance the impeller.

1) Pump pressure must be released before attempting to remedy faults on parts which are subjected to pressure.2) Request particulars.

RPH

21

9 General assembly drawings

9.1 Material class S, cooled and uncoooledBearing brackets B02 to B05

uncooled

cooled

D01040/3

When ordering spare parts, please always specify:Type series, works No. (stamped on the name plate and on the suction nozzle flange),year of construction, quantity required, part No., description, material, fluid handled,general assembly drawing No. and mode of dispatch.

Part No. Description Scope of supply102 Volute casing with joint ring 411.10, casing wear ring 502.01, stud 902.01,

grub screw 904.03, plug 916.01 (not shown, instead of drain line),hex. nut 920.01

161 Casing cover with joint ring 411.10, O-ring3) 412.01/.31, casing wear ring 502.021),hex. head bolt 901.30, stud 902.15, grub screw 904.041), plug 916.16,hex. nut 920.15

210 Shaft with keywayed nut 920.21, lockwasher 931.01, key 940.01/.02230 Impeller with impeller wear ring 503.01/.02, grub screw 904.06/.07,

joint ring 411.31/.32/.67 (optional), lockwasher 931.02,320.02/550 2) Angular contact ball bearing with ring 550 (adjusting washer)322.01 Cylindrical roller bearing330 Bearing bracket (compl.) with protective cage 169.10, bearing cover 360.01/.02, gasket 400.01,

O-ring 412.22, constant-level oiler 638, oil level sight glass 642,pipe 710.22, hex. head bolt 901.31/.37, vent plug 913.03, plug 916.46,socket head cap screw 914.01

360.01/.02 Bearing cover with gasket 400.01, O-ring 412.22, socket head cap screw 914.01502.01/.02 1) Casing wear ring grub screw 904.03/.041)503.01/.02 1) Impeller wear ring grub screw 904.06/.071)507.01/.02 Thrower grub screw 904.41/.42542.02 Throttling bush638 Constant-level oiler831.02 Fan impeller (optional) with fan hood 832, fan hub 485.02, grub screw 904.33904.38 Grub screw922.01 Impeller nut99-9 Complete set of sealing elements (not shown)1) for