Operating Instructions SUBMERSIBLE CENTRIFUGAL PUMPS B80
Contents
1. DLE 082 06 ozz S9 UC Ove 097 UGC CBC se 96 09 09 07 07 0 0 Oly 08 06 oze S9 UC Ove 097 3 ES osz ATA se 96 09 09 0l 07 Sc 0 Oly 08 06 028 S9 UC Ove 097 2 E 086 CBC se 96 09 09 07 07 SC 06 DLE 082 06 ozz S9 UC Ove 097 X osz Ara St 96 09 09 07 07 0207 9 09 UGC Ove 061 Ov 0c Ole 007 8 UCL CCC 0 GL UC UC 19 19 02 91 OSE osz Ove 06L Ov 0c Ole 007 a UCL CCC 0 GL UC UC 19 19 si 9L oee osz Ove 06L Ov 0c Ole 007 T UCL CCC 0 GL UC UC 19 19 srol 00 osz Ove 06L Ov 0 Ole 007 3 S UCL CCC 0 SZ UC UC 19 19 Orol z9 Risa osz Ove 06L Ov 0c Ole 00p a 5 UCL LZ g 8 80 00 07 z9 01 90 DRC osz Ove 06L Ov 0c Ole 007 S UCL BLZ El 8 80 00 07 c9 9090 Stc osz Ove 0 1 Ov 0c Ole 007 UCL 06L g UG 80 00 07 c9 80 v0 19 Xeul uu l u u 6 4 9 g V H d 3 A 0 eu cu Lye re abuey LLO LLO 29 vX9L vX8L vX9L vX8L vX6L vX8 96 DLL 86 0L rel Se G L L Ov Ov C 09 0 0 GIL LD IGL LD 9 vX9L vX8L vX9L vX8L vX6L vX8 96 OLL 86 0L Let Sc w b L Ov wel Ov C 06 s3 0 GILLIS Z LL9 29 vX9L vX8L vX9L vX8L vX6L vX8 96 DLL 86 oL LL Se w b L Ov Ov C 06 BC 06 C LLOJC LLO 29 vX9L vX8L vX9L vX8L HXGL vX8 96 DLL 86 0L Let Sc G L L Ov Ov C 06 020 9 PIL LB IRL LB d LLI9 vX9L vX8L vX9L HXBL vX9L vX8 68 00L 68 00 96 OL PIL L ce2. 14 ESO CUNEO 15 RI eU 16 3 7 Maintenance 17 3 8 Repairs lf 4 Maliuinetions and hia Tai ee T 18 SECC A od 19 DI 20 21 Declaration of CONTONMIN sco EE EE OE EE EE EE ERE E ERE EE ERE EE EEG 23 Note In the operating instructions figures are mentioned in brackets These refer to the item specifications in the spare parts list of the respective model 1 Safety These operating instructions e must be considered as part of the product e must be read by the operator of the pump before placing it into operation and must be followed during operation e must be given to any subsequent owners or users of the product e must be updated by the user for any addendum received A Warning Chemical hazard These pumps have been designed to deliver a variety of liquids and chemicals Please heed the notes regarding disposal when performing maintenance and repairs Warning Safety risks for personnel mainly arise from improper use or accidental damages These risks may be of an electrical nature as far as the non synchronous motor is concerned and may cause injury to hands if working on an open pump Risks may also arise due to the nature of the liquids pumped It is therefore of utmost importance to closely follow all the instructions contained in this manual so as to eliminate the causes that may lead to pump failure and the consequent leakage of liquid dangerous for both personnel and the
3. 3 6 Disassembly e All of the following maintenance operations must be performed under the supervision of qualified personnel e Switch off power to the motor and disconnect the electrical leads Remove the wires from the terminal box and cover the ends e Close the pressure valves e Wear gloves safety goggles and acid resistant clothing when detaching and washing the pump e Loosen the lines and allow enough time for any remaining liquid to drain out of the pump e Wash the pump before performing any maintenance work e Do not contaminate the environment with the used washing liquid e Lift the pump vertically taking care to not exert any pulling forces on the immersion tube column Before attempting to dismantle the pump ensure that the leads have been disconnected from the motor and that the motor cannot be started accidently Now open the pump observing the sequence given in the spare parts list and follow the recommendations below e The nuts and bolts have right hand threads e To access the impeller remove the volute casing unthreading the screws that fasten it to the column Once the volute casing is open the impeller must be disconnected blocking the shaft on the opposite side remove the motor fan if necessary proceed by unscrewing the ogive right thread the impeller is then axially unthreaded The shaft covering is axially unthreaded with the impeller To remove the column and shaft complete motor e Rem
4. 12 e Manually verify that all rotating parts are free to turn without abnormal friction by turning the fan wheel on the motor e Make sure that the power supply matches the data shown on the pump motor identification plate e Connect the motor to the power supply via a magnetic thermal protective switch e Install emergency stop devices to switch off the pump in case of low liquid level floating magnetic electronic pressure sen sitive e Depending on the physical and chemical characteristics of the liquid to be pumped the ambient temperature must not be higher or lower than the values stated under Application limits e Other enviromental conditions apply based on the IP type of protection of the motor Leave enough free space around the pump for a person to move Leave enough free space over the pump to permit lifting it Arrange for a rigid partition to separate the inlet ports in the case of pumps installed closed to each other e The pump axis must not be positioned in the centre of small tanks Highlight the presence of aggressive liquids by means of coloured signs in compliance with applicable safety regulations e Do not install the pump made of thermoplastic material close to heating sources Do not install the pump in areas subject to falling solid of liquid matter e Do not install the pump in a potentially explosive atmosphere unless the motor and coupling have been provided for such an environment
5. 3 Store the pump at an ambient temperature between 5 C and 40 C and at a relative humidity below 80 The packaged pump must not be subjected to shocks vibrations or other loads 4 Check the condition of the grease in the bearing casing support prior to installation if the pump has been stored for more than 6 months If necessary add more grease 3 3 Installation e Arrange for a particularly rigid support structure maximum deflection must be less than 0 2 mm based on the pump weight at the installation site e Paint the support structure with epoxy enamel or a similar material to prevent corrosion e Arrange for adequate passage and install protective guards to protect personnel in compliance with applicable safety regulati ons e For motors provide additional protection in the case of outdoor installation Ensure proper air flow to the motor fan wheel and that rainwater drains quickly e The tank under the pump must be covered appropriately in the case of hot liquids or liquids generating corrosive fumes damaging to metallic components of the pump outside the tank Seal the base plate by means of thin but not overly soft seals that are well compressed by the fixing bolts e Do not use anti vibration pads to mount the pump e Anti vibration joints are recommended at the outlet pipe connection e Clean the system before connecting the pump e Make sure that no foreign bodies are left in the pump Remove the safety caps from th
6. environment Risks may also arise from improper maintenance or dismantling practices In any case five general rules are important A all services must be carried out by specialised personnel or supervised by qualified personnel depending on the type of maintenance required B install protection guards against eventual liquid sprays when the pump is not installed in remote areas due to an accidental pipe rupture Arrange for safety basins to collect possible leakage C when working on the pump always wear acid proof protective clothing D arrange for proper conditions for suction and discharge valve closing during disassembly E make sure that the motor is completely disconnected during disassembly Proper design and building of the plants with well positioned and well marked piping fitted with shut off valves adequate passages and work areas for maintenance and inspections are extremely important should the plant be faulty constructed or present wear and tear defects the pressure developed by the pump could lead to failure It must be stressed that the major cause of pump failures leading to a consequent need to intervene is due to the pump running dry in manually operated plants This is generally due to e the suction valve being closed at start up or e the suction tank being emptied without stopping 1 1 Personnel responsible for installation and start up Interventions allowed only to specialised personnel who may ev
7. thermal expansions e g expansion coupling proper con iguration The coated pump shaft where it crosses the base plate is provided with fume seal ring to protect the motor bearing and to reduce fume dispersion in the environment in case of hot liquids 2 3 Application limits 2 3 1 Ambient temperature The range of permissible ambient temperatures depends on the type designation specified on the identification plate 0 40 C execution WR 10 40 C execution FC 2 3 2 Maximum temperature of pumped liquid The maximum temperature during continuous operation based on water depends on the type of materials chosen see identifi cation plate 70 C execution WR 90 C execution FC To prevent sludge collecting at the bottom of the tank the immersion depth can be increased by adding a suction extension in any case ensure that the minimum distance from the bottom S is maintained Should the extension pipe be greater than 250 mm in length arrange for a bracket to keep lateral movement of the extension within 1 3 mm without blocking it whilst allowing for thermal expansion at the same time The maximum length of the extension pipe is 500 mm The nominal bore must be the same as that at the suction inlet With an extension pipe installed the level can drop below the impeller pump casing during operation not during start up by the following amount based on water at a temperatur
8. Operating Instructions SUBMERSIBLE CENTRIFUGAL PUMPS B80 Read this operating instructions before start up To be retained for future reference L Z yy Lutz The Fluid Managers gt Table of contents NN 4 1 1 Personnel responsible for installation and start up sse 5 1 2 Personnel responsible for operation and maintenance eee eee eee eee eee 5 1 3 Personnel responsible for repngiS eee eee 5 1 4 Improper BUG T 6 A 6 2 MGOMEIAN O 7 2l Felt Of apDIIGAOIT T 7 2 2 Construction 2 3 Application limits 23 1 Ambient temperature au e EEEIEE EEEREN EEEE EYEE EENEN E DO ERE 8 2 3 2 Maximum temperat re of pumped liquid cion ia 8 2 3 9 Imtmersiofi e DUN socer n e ee RR RR RO HR RO ORO RA Y ERE AER RE ERE 9 A Ae OUS SMS eT 9 23 5 SPOCHIC leU U 9 2 3 6 ILSTHEM ee es 21 UO 9 2 97 s a Ox dece E Er R EE EETEEEEEXXE DEUS EREE TERT a UE SE see EE E EEEE a eer ee 9 2 3 8 Minimum delivery rate nnne nnne nnn 9 2 3 9 ExtermalflUs flexo eee ec vvv san ater ee 9 10 10 10 3 Installation and operating instmictiorls s scsisiscciscscsccccecccccccccscscsccccscacccccscsescscccascaccescsesescscccascaccescscsescscccascaccescscscstsbabiits 11 SICUTI f 11 Bie 11 3 3 Installation ooo 11 NE rS MH
9. ce GIL L Ov 0291 PIL LD v LL9 oLL9 XIL vX8L vX9L vX8L vX9L vX8 68 00L 68 00 96 0L PIL L ce ce G L L Ov SOL 9 v LLO Z LLO vX9L vXvL pX9L vVX8L HXOL vX8 6L s8 68 00 86 Ol Sc ce w b L Ov srol 9 wL 19 W119 vX9L vXvL vX9L vX8L pxol vX8 67 S8 68 00 96 Ol u Sc PI ct G L L Ov orol z9 9 v LL9 v LLO vX9L vXvL HXOL vX8L HXOL vX8 6L Sg 68 00 68 00 u Sc ce PIL L ce 0190 VIED v LLO v LLO vX9L vXvL vX9L pX8L vX9L vx8 0l SL 68 00 68 00 PIE 0 ce PIL L CL 9090 vied 9 L9 vX9L vXvL VX9L vXvL HXOL XH 07 GL 6l Sg 62 Sg PIE 0c Sc T Sc 80 v0 19 ISNV OSI ISNV Os ISNV OSI ISNV Os ISNV 08 ISNV 08 ISNV Os ISNV OSI ISNV OSI mea Usa vea exp 12xp zp C Wy LINN VN Cc WuG wud vua abues peau abue y Suonoeuuot suoisuauill 9 S 06 10 001 Lutz Pumpen GmbH Lutz ErlenstraBe 5 7 D 97877 Wertheim The Fluid Managers Declaration of Conformity We herewith declare that the design and construction of the following machine in the versions marketed by us fully comply with the relevant basic safety and health requirements specified by the EC Directives listed This declaration ceases to be valid if the machine is modified in any way without prior consultation with us Type of device Submersible Centrifugal Pump Model B80 EC Directives EC Directive on machines 2006 42 EC annex section 1 without 1 2 such machines do
10. d personnel technical abilities required Knowledge of mechanical operations the ability to prevent damage during handling due to rubbing or impact technical knowledge regarding fastening of screws and bolts on various materials such as plastic metal use of precision measuring instruments e Opening and closing the pump casing e Removing and replacing of rotating parts 1 4 Improper use The pump is to be used solely to deliver liquids The pump cannot be used to generate isostatic or counter pressures The pump must not be used to mix liquids that undergo exothermic reactions The pump must be installed vertically in a stationary position The pump must be connected at the pressure port to a suitable hydraulic system with appropriate piping A shut off mechanism independent of the pump must be installed in the system Handling of chemically aggressive liquids requires specific knowledge 1 5 Disposal Materials Separate the plastic parts from the metal parts and have them disposed of by an authorised company 2 General 2 1 Field of application Series B80 pumps are designed and built to transfer liquid chemical products with a specific gravity viscosity temperature and stability of state appropriate for use with centrifugal pumps in a fixed installation from a tank at a lower level to a tank or a pipe at a higher level The characteristics of the liquid pressure temperature chemical reactivity specific gravity viscosity vapou
11. dicates the level of protection against penetration of solid objects and in particular 4 for solids whose dimension is greater than 1mm 5 for dust eventual internal deposits will not harm operation 6 for dust no pentetration The second number indicates the protection against the penetration of liquids In particular 4 for water sprays from all directions 5 for jets of water from all directions 6 for tidal and sea waves According to the IP protection indicated on the identification plate of the motor and to the environmental conditions arrange for opportune extra protections allowing in any case correct ventilation and rapid drainage of rainwater 10 3 Installation and operating instructions 3 1 Transport e Cover the hydraulic connections e When lifting the unit do not exert force on the plastic hydraulic fittings e Place the pump on its base or fixing plate during transport e f the road is particularly rough protect the pump by means of appropriate shock absorbing supports e Bumps and shocks may damage important working parts vital for safety and the functionality of the unit 3 2 Storage 1 When it is necessary to store the pump prior to installation don t remove it from the original packaging The packaged pump must be stored in an enclosed clean and dry environment 2 If the pump s packaging seems damaged upon receipt inspect the pump to check its integrity Place it in new packaging for further storage
12. e Do not use the pump to transfer flammable liquids e Do not install the pump in close proximity to workplaces or crowded areas e Install extra protective guards for the pump and personnel as the need arises e Install an equivalent pump in parallel as a backup 3 4 Start up e Verify that the instructions outlined in the installation section have been followed e Verify the correct direction of rotation clockwise as seen from the motor end by supplying the motor with short impulses e Ensure that the NPSH available is greater than that required by the pump in particular with hot liquids liquids with a high vapour pressure if a long suction extension is used or in the case of negative suction head e The suction pipe if present and the pump must be totally submerged Start the pump with the discharge valve partially closed Regulate the delivery rate by slowly opening the discharge valve never by means of the suction valve and make sure that the current draw power consumption of the motor does not exceed the rated value indicated on the motor identification plate e Do not operate the pump at the limits of its performance curve max delivery head discharge valve completely closed or max delivery rate total absence of delivery flow and geodetic head on the delivery circulation e Set the operating point to that for which the pump is intended e Ensure that there are no abnormal vibrations or noise due to inadequa
13. e hydraulic ports Follow the instructions indicated in the following diagram nstall a shut off valve on the discharge side nstall a check valve particularly with vertical or horizontal pipe runs mandatory when pumps are connected in parallel Provide a connection point for a pressure gauge or safety pressure control device Secure all piping firmly Use expansion joints indispensable with long pipe runs or hot liquids Max fluid speed on the pressure side max 3 m s nstall 45 bends in the pressure line to facilitate pump installation and removal Do not attach elbows or other fittings close to the pump outlet or inlet Minimum suction head during start up for suction head during pumping see Application limits A vertical suction extension for bottom suction lift is allowed Not in order to empty the container completely Use a foot strainer 3 5 mm mesh screen if solid matter open tanks or coarse impurities are present 0 Arrange for drainage of liquids from the base plate 1 Use all of the fixing holes to install the pump The fixing points must be kept at the same level 2 Maintain the minimum distance S from the bottom and the walls or other working pumps Oc KH S KM M k a a 9o C E Y PL bd 7 4 7 Liquid level max _ Ei mm Liquid level min AZ SS E Fa r
14. e of 25 C 2 3 3 Immersion depth 2 3 4 Solids The liquid being pumped may contain a maximum of 20 of solid non abrasive particles not greater than 1 mm in size The presence of fibrous adhesive or abrasive substances is not allowed The maximum allowed size of objects occasionally present is 3 mm For pumps with an FC type designation the maximum concentration of metallic particles is 0 5 provided that their size is less than 0 5 mm Arrange for proper filtering or sedimentation stages to comply with the above mentioned limits 2 3 5 Specific gravity The specific gravity that can be pumped at a temperature of 25 C for liquid and ambient depends on the diameter of the impeller shown on the identification plate and the motor rating shown on the motor identification plate and has to be defined when ordering 2 3 6 Kinematic viscosity The kinematic viscosity must not exceed 25 cSt so as not to significantly modify the performance of the pump Higher values up to a maximum of 75 cSt are possible provided that the pump is equipped with a suitable impeller and motor to be specified when ordering 2 3 7 Vapour pressure The vapour pressure value of the liquid to be pumped must exceed by at least 1 5 m w c the difference between the absolute total head suction side pressure plus positive pressure head or minus suction lift and the pressure drops in the suction side piping including the pressure drops across filters and the in
15. eller problems e Unusual vibrations could be due to an unbalanced impeller caused by damage or foreign bodies deposits obstructing the blades e Reduced pump performance could be due to an obstructed impeller or damage to the motor e Motor damage could be due to abnormal friction within the pump Damaged parts must be replaced with new original parts e The replacement of damaged parts must be carried out in a clean dry area 3 8 Repairs Before sending back the appliance following must be observed e Residuals in the appliance can cause danger to the environment and human health The appliance must be completely emptied rinsed and cleaned e Please advise which liquid has been pumped A respective safety data sheet must be attached to the return consignment 4 Malfunctions and possible causes The pump does not deliver 01 Wrong direction of rotation 02 Suction piping is too long or has too many bends 03 Pump not completely flooded 04 Impeller blades obstructed by impurities 05 The check valve in the discharge pipe is blocked 06 The geodetic head of the system is greater than the maximum delivery head developed by the pump 07 The impeller is blocked by a considerable layer of crystals or as the result of melting due to dry running The pump has reduced capacity or insufficient pressure see items 01 02 03 04 08 The back pressure in the system is greater than that expected 09 Insufficient geodetic
16. entually delegate to others some operations depending on specific evaluations technical capability required specialisation in industrial plumbing or electric systems as needed 1 2 Personnel responsible for operation and maintenance Perm S 0 issible actions for general operators after receiving instruction in correct use of the system arting stopping the pump pening closing the valves after the pump has been switched off e Emptying and cleaning the housing through valves and pipes intended for this purpose C Actio and chemical condition of the system being supplied by the pump and of the pump itself C C C C eaning the filter elements ns that may be performed by trained personnel technical abilities required general knowledge of the mechanical electrical hecking the surrounding conditions hecking the condition of the liquid being pumped hecking the stop approval devices hecking the rotating parts of the pump Determining the existence of malfunctions 1 3 Persomnel responsible for repairs Actions that general operators may perform under the supervision of qualified personnel Stopping the pump C losing the valves Emptying the pump casing Loosening the pipe connections Loosening the fixing screws on the base plate C leaning with water or a suitable solvent Transport after the electrical leads have been disconnected by qualified personnel Actions that may be performed by traine
17. factured from materials not suitable for the liquid being pumped 30 Pump is being operated too far below pump capacity 18 SG di uonoeloJg ZH 0G S 022 ZH OG S 00 A eDej0A MA gt JuaJIng 9y SuoIsJa fe eseud aaJu ou ased w e w w w w co co e c e co e co co co co N Pj N ed N B 8 2 18 as 88 8 sn S F s 5 8 S S 5 5 8 S o gt a gt 2 2 gt gy Ep l fj lalalala sals else plo plalnjajela lo 5 2 5818 8 18 1818 dus Giz Z Ky y anea y buans ajBuis Xey Z x y anjea y buans ajBuis Xe p a feat ap 8 9 aunssaid punog 06 G op v Ov 8c ve 74 GL S EL LL L eu ayes Alan ap Xew Ov ve 976 Gee gg Gee Sg7L yl gel GOL GOL OM ul peau KJewjep xeu By ayejdaseq Jam 9 9 SS 9 SS ce SG ce ee ale aleia vk OL vt OL 9L OL 8 01 8 2 8 72 9 21 9 7 By Jojou 3459M ea WW 90 Jed 0L OL 0L 0L 9 9 9 9 S S S By DX 9 0 009H 404 duind 1UbISM d N S d N S d N S d N S d N S d N S d N S d N S d N S d N S d N UOISJ8A 0 0 Sc 0 Sc 0c 0c 0c 07 91 si 9L Sr0L 0ror 0190 80 90 80 v0 90 elep e91uyoo G 19
18. let NPSHr drops shown on the specific tables 2 3 8 Minimum delivery rate The pump must not be allowed to deliver less than 5 of the maximum delivery rate 2 3 9 External flushing Flush out the pump at a flow rate of 100 l h at a pressure of 1 5 bar 2 4 Motor 2 4 1 Electrical connections The pump s direction of rotation which can be verified by observing the cooling fan in B80 pumps the cooling fan must rotate clockwise when viewed from above is determined by the electrical connection to the terminals With single phase motors the direction of rotation may be reversed by changing the position of the connection plates V uu With three phase motors the direction of rotation may be changed by swapping any two of the three conductors inde pendently of the type of connection to the windings oi o Z gt a m 4 4 No EU The windings of three phase motors e g with a 230 400 V b 400 690 V require a delta connection for lower voltage 230 volts for a 400 volts for b A ii They require a star connection for higher voltage 400 volts for a 690 volts for b AO XA X Y Z Star delta starting is used when the motor is rated above 7 5 kW 10 HP only in the case of frequent starts and short running times but always when the motor is rated above 15 kW 20 HP This is done to safeguard the pump 2 4 2 Protection level The initials IP are followed by two numbers The first number in
19. not include commands or start stop controls EC Directive on low voltage installations 2006 95 EC EC Directive on electromagnetic compatibility 2004 108 EC Person authorised to compile the technical file Mr Klaus Saemann Lutz Pumpen GmbH ErlenstraBe 5 7 D 97877 Wertheim Wertheim 29 12 2009 EA J rgen Lutz Managing Director Lutz The Fluid Managers Luiz Pumpen GmbH Erlenstra e 5 7 D 97877 Wertheim Tel 93 42 8 79 0 Fax 93 42 87 94 04 e mail infoOlutz pumpen de http www lutz pumpen de Subject to technical changes 06 10 2 Best Nr 6999 551 Printed in Germany Dru
20. ove the locking screws of the half clamps spare parts list pos 5 see fig 1 below e Remove the two half clamps pos 4 fig 1 e Unscrew the vapour seal counterface pos 10 keeping the column locked fig 2 e At this point unthread the column e At this point proceed with the removal of the shaft unthread the locking screws of the rigid coupling pos 7 or with the removal of the upper cover terminal Alternatively if it is only necessary to work on the electromotor The disassembly of the immersed parts can be avoided fig 3 e Remove the locking screws of the half clamps pos 5 e Remove the two half clamps pos 4 e Unthread the locking screws of the rigid coupling pos 7 3 7 Maintenance e All of the following maintenance operations must be performed under the supervision of qualified personnel e Clean the filter elements regularly every 2 30 days depending on the liquid being pumped e Inspect the rotating parts of the pump regularly every 1 6 months depending on the liquid pumped and the operating con ditions Clean exchange or lubricate parts as necessary see Recommendations e Check for proper functioning of the motor controls regularly every 3 5 months depending on the liquid pumped and the ambient conditions Proper operation of the controls must be assured Efficiency must be guaranteed e Excessive current draw power consumption could be an indication of imp
21. pressure head developed by the pump 10 Damaged or worn impeller 11 Friction bearing bushings rotating bushing and guide bushing worn KME only 12 Viscosity of liquid greater than that expected 13 Excessive amount of air or gas in the liquid pumped 14 Excessive amount of sludge in the liquid 15 Bends check valves or other similar components close to the outlet 16 Liquid liable to turn to the gaseous state particularly if hot or containing surface activ agents The pump starts up regulary and then disconnects 17 Make sure the minimum suction head is reached at the inlet port 18 Remove or shorten the suction extension pipe The current draw power consumption is too high see items 12 14 19 The delivery rate is greater than expected 20 The specific gravity of the liquid is greater than expected 21 Impurities inside the pump generate abnormal friction 22 The supply voltage is not the same as that on the motor identification plate The pump vibrates and is noisy see items 11 21 23 The pump is working at maximum delivery rate no delivery head 24 The pump and piping are not firmly secured 25 The supporting structure must be made more rigid The pump shows signs of premature wear of internal parts see items 14 21 26 Liquid is overly abrasive 27 Frequent recurrence of cavitation see items 02 12 15 28 High tendency of the liquid to crystallise or polymerise during stand by 29 Pump manu
22. r pressure and ambient conditions must be compatible with the characteristics of the pump and are defined when ordering Impeller and static casings in contact with the liquid are constructed from thermoplastic materials other parts in high chemical resistant materials The performance of the pump pump capacity delivery head and rpm is defined upon ordering and specified on the identification plate Series B80 HME and KME pumps are single stage vertical centrifugal pumps Series HME is equipped with a cantilever shaft at the bottom part The pumps are directly immersed in the liquid to be pumped They are connected by a rigid coupling to an electrical ansynchronous motor The suction connection is axially facing downwards The pressure connection is positioned laterally and if requested can be equipped with a discharge pipe for connection onto a piping hydraulic system outside of the tank The support plate must be fastened to a rigid support structure see installation instructions Series B80 HME and KME pumps are not self priming and therefore they must always be started with the body immersed Once the pump has been started the level must not drop below the minimum level in order to avoid the defusing of the pump Series B80 HME and KME pumps can run dry occasionally when liquid is absent but not for periods longer than 15 minutes to resume pumping the pump body must be immersed Clockwise rotation seen from the motor
23. side Make sure that the chemical and physical characteristics of the liquid have been carefully evaluated for pump suitability The maximum pressure that the pump can be subjected to is 1 5 times the maximum prevalence value The pump must not operate with the delivery closed The submerged part liner must not be subject to lateral hydrodynamic thrusts by the liquid mass being moved The pump does not include any non return valve nor any liquid flow control or motor stop device When calculating the head consider the actual level of the liquid in the suction tank and not the outlet connection 2 2 Construction The mechanical structure is extremely simple the impeller is pulled in rotation by the pump shaft connected to the motor shaft by a rigid coupling the counter rotation of the impeller and a labyrinth reduce fluid leakage towards the shaft dynamic loads usually reduced in this type of pump are supported by the motor beari The pump is supplied with a base plate to fasten it to the supports tha ngs must be pre mounted on the system The discharge pipe where it crosses the base plate is provided with threaded collar pipe clamp ring and a lock nut which by fastening it to the plate prevents the volute casing from being affected by mechanical stress from the system It is abosolutely necessary to reduce to a minimum any load on the connections To do that back the piping up with proper brackets in such a way to allow
24. te mounting or cavitation e Avoid short and or frequent starts by properly setting the control devices Motor rating kW 075 15 2 2 4 5 5 7 5 11 15 18 5 30 37 110 Max starts hour 36 28 20 15 10 6 Ensure that the temperature and pressure as well as the liquid characteristics are as specified at the time of order 14 3 5 Operation e Switch automatic control on e Do not operate any valves whilst the pump is in operation e Risk of dangerous water hammer effects in the case of sudden or improper valve actuation only trained personnel should operate valves Completely empty and clean the pump before using a different liquid e Isolate or empty the pump if the ambient temperature is the same or lower than the crystallisation temperature of the liquid e Stop the pump if the liquid temperature exceeds the maximum allowed temperature indicated in the Application limits section If the temperature exceeds this value by approx 20 check the condition of internal parts e Close the valves in case of leaks e Wash with water only if compatible from the chemical point of view As an alternative use an appropriate solvent that will not undergo any dangerous exothermic reactions Contact the supplier of the liquid to be pumped for information on suitable fire extinguishing measures e Empty the pump in case of long periods of inactivity in particular with liquids which would easily crystallise
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