Horizontal multi-stage centrifugal pumps
Contents
1. Horizontal multi stage centrifugal pumps series DPHM C Installation and operating instructions Table of Contents 10 11 Manual Introduction A PRETACE A Un T AEE es cea CS CE TRE RE M EDGE Er RR D O ON INTE 3 LEM eo x Edu 3 Identification service and technical support 2 1 Obtaining data and information DPHM C 2 4 6 ssssseseseseene enne eem eene 4 NAMES I m 5 253 SGUITCIM a HIDE 5 2 4 Supplementary documentation oooonocccnnncccococcnonncnnnonononnnnnno nn nc nano enne nere entren nen nennen nenne 5 Warranty 341 Terms Of warranty nte e teli A Mas pere dee oe ded tua 6 Safety and environment O M 7 LU O TEEN E A 7 LESE eru fe 7 44 Safety precautions eee epo ae he ede eee Best Leta exei de See 7 4 5 Environmental spects uns tener dae 8 Pump Introduction UNE DIEI EL idas 9 52 Description of theiproduct oe tae tte gea nale e is 9 bi3 Intended Use ai A eee ED GE eer ERR A Tao Te a ee be Eee Reds 9 5 4 Operation irr RR ERU RO RD NT 9 5 5 Measuring draining and venting sssssssssssssssessseee eene cnn nn nr rn rca nter enn n nter nenne nn 10 5 0 Worklng tange eser rei id er Oa Un EE er E 10 Transport 6 1 Transport sh see Roter a nn p teet Set oce Neca Eco tee EB Tees 11 6 2 SIOrage oe iore e bep an ere E ERE Le wna ERR SO UU MOREM Me eat EA Mee cap ass Mea 11 Installation2. B 1 1 kw Installed motor power 50 Hz Nominal frequency ID 290048451060M Pump ID a 43m 7 Optimum capacity running atng seefig 2 Duty point H 40 4 m Optimum head running at ng see fig 2 Duty point PO Purchase order number Prod 07 2014 1103153 4682 Production week year and production serial number gt as built file Seal Ca Ce EPDM Mechanical Seal Surface Code and elastomer see fig 2 2 Seal codes n fix 2880 rpm Rotation speed indication at which Q H are given T 10 60 C Temperature range p PN10 Pressure Class connection 2 2 Seal codes Table 2 Material code shaft seal Code acc to EN 12756 Description Material Note B Spring loaded ring Carbon graphite Ca Resin impregnated V Seat ring Ceramic Ce Aluminium oxide E Elastomers EPDM EPDM Ethylene propylene rubber P NBR NBR Nitrile butadiene rubber F Spring CrNi steel F Other metal parts CrNi steel 2 3 Current 2 4 Supplementary documentation 2 3 1 Nominal current The nominal allowable current of the motor is stated on the motor plate This shows the nominal working range of the motor and can be used to protect the motor Measuring the actual current of the pump during operation can be used to pre set the motor protection switch to protect the pump motor combination This current value can also be used to determine the proper electrical equipment such as variable frequency drive main switch wiring diameter etc A 2 3 2 Motor
3. instructions A Setting p the PUMP ei eee ea pe e eee eer allele eR dnce s 12 7 2 Electrical installation 3 ree dios 13 1 3 COMMISSIONING A eere edet dde ang HERE ee een rt decedere dee Bde deduc Erde dece aee de doce de ede inh 13 Operation 8 1 SOPSAUOM PEE toian 15 Maintenance 9 1 Irtrod ctlon eet RE ev 16 9 2 Maintaining the pump for an extended period of non operation esse 16 Failures 10 1 Failure table z i Er Rer urbe E ERR 17 10 2 Torques of vent and draining plugs enemies 19 Annexes 11 1 EC decl ration of CO Mi vitoria aiite cede ee ede oe decet eee 20 1 1 1 Manual Introduction Preface This manual contains important information for reliable proper and efficient operation Compliance with the operating instructions is of vital importance to ensure reliability and a long service life of the product and to avoid any risks The first chapters contain information about this manual and safety in general The following chapters provide information about normal use installation maintenance and repairs of the product The annex contains the declaration s of conformity 1 2 Make yourself familiar with the content Accurately follow the directions and instructions Never change the sequence of the operations to be carried out Keep this manual or a copy of it together with the logbook in a fixed place near the produc
4. of the suction line is larger than the pump suction connection then install an eccentric adapter in order to prevent air pockets and swirling Indicators 20131395 The arrow A on the fan hood indicates the rotating direction of the motor in case of a 3 phase motor 7 1 2 Install bypass Install a bypass if the pump may operate against a closed valve for a long period The required capacity of the bypass is at least 10 of the maximum volume flow At high operating temperatures a higher volume flow is required With temperatures above 60 C the required capacity is more than 10 ES ATTENTION Do not make use of quick closing valves and or shut off valves to prevent pressure impulses in the pump and in the lines as a result of changes in the flow rate 7 2 A Electrical installation WARNING In accordance with the local regulations only authorised personnel is allowed to make electrical connections to the motor Example may differ upon chosen motor ES ATTENTION Connect the motor according to figure 7 Motor connections and always check the rotation direction Electrical connections s Make sure that the motor specifications correspond with the power supply to which the pump motor is connected Consult Electrical diagrams for the correct connection diagram Connect the motor using a motor safety switch 3x 400V OVERLOAD PROTECTION lt pec N N 230 400V U1 O O
5. protection Standard single phase motors are delivered including motor protection The motor protection is provided either by a thermal circuit breaker or by a motor winding protection WARNING Not only the motor but also the pump has to be protected in its application Apart from this manual the documentation given below is also available Table 3 Supplementary documentation Document Code General terms of delivery 119 1998 DPHM C 2 4 6 Technical Data 50 60 Hz Version B 97004494 c S 8 lS a gt gt o E 9 o o a o z 9 c os ce o o oz o 20 2 25 lo so G 9 ey E SE 8 3 as og em re 1 Thermal 20 30 Thermal Manual circuit breaker box 2 Winding 20 50 Motor Automatic protection winding Please contact your supplier for more detailed information about your motor protection See also www dp pumps com 3 Warranty 3 1 Terms of warranty The warranty period is settled by the terms of your contract or at least by the general terms and conditions of sales IS ATTENTION Modifications or alterations of the product supplied are only permitted after consultation with the manufacturer Original spare parts and accessories authorized by the manufacturer ensure safety The use of other parts can invalidate any liability of the manufacturer for consequential damage IS ATTENTION The warranty relating to the operating reliability and safety of the p
6. N ERN x CAB g Koo EE IN LO D ES o o e 07 07 o e o o FT Bes o o Ps RS o o e o o oo 8 ol o o o 9o o o 20 LO o o o o o Figure 9 Example installation of a pump in suction operation 20131397 A e Open the discharge shut off valve B s Remove the fill plug C Put a funnel into the port C and completely fill the pump with the liquid to be pumped e Vent the pump on discharge side for example via a venting valve D on discharge side see Figure 9 Example installation of a pump in suction operation e Make sure all air is removed from the pump e Close the venting option on discharge side Close the discharge shut off valve B Close the fill plug C 7 3 2 Start the pump e Start the motor e Gradually open the discharge shut off valve B Make sure the pump started correctly within 20 seconds if not then s Switch off the motor e Re prime the pump Start the motor again e Switch the pump off and on for 2 3 times after running continues for 30 seconds and make sure all air is removed from the pump 7 3 3 After an extended period of non operation or storage During first start up check the mechanical seals for leakage due to seizure or dehydration of the lubricating film If so please proceed as following 1 Turn shaft manually 2 Checkifthe mechanical seal is still leaking If the mechanical seal is still leaking 1 Disassemble the m
7. brasive parts New pump seal stuck due to assembly Open and close the outlet shut off valve quickly dur ing operation Mechanical seal mounted incorrectly Install the mechanical seal correctly Use water and soap as a lubricant Elastomers affected by medium Pressure too high Use the right rubber com pound for the mechanical seal Use the right type of mechanical seal Shaft worn Replace shaft and mechanical seal Pump has been operating without water Replace the mechanical seal Leakage along the shroud at the top bracket or at the pump casing Pump is vibrating or noisy O ring worn Replace the O ring O ring not resistant to the medium to be pumped Replace O ring by an O ring with better resistance Too much stress on the pump casing it becomes oval Coupling mounted incor rectly Decrease stress on piping Mount the pump casing without stress Support the connections Install the coupling in par allel Faulty setting of the hydraulic assembly Adjust the assembly according to the manual There is no water in the pump Fill and vent the pump No supply of medium Make sure there is suffi cient supply Check for blockages in the supply line 17 Bearings of pump and or motor worn Available NPSH too low cavitation Have the bearings replaced by a certified company Improve suction conditi
8. e Overload protection Q e No No 230V WITHOUT OVERLOAD PROTECTION lt N 400 692V sO Os lt Q Osc OO N Figure 7 Motor connections 7 3 A Commissioning WARNING The pump must be switched off when it is not completely filled up N Osc SO Oz lt gt O No No 20140034 ATTENTION Check the direction of rotation according to fig 6 Terminal box and fan hood sticker In case of a 3 phase motor the rotation direction can be changed by exchanging two of the 3 phases 13 14 7 3 1 Prime the pump KENNEN I 20 05 ol Figure 8 Example installation of apump under pressure operation 20131396 A e Close the discharge shut off valve B Close the suction shut off valve A e Unscrew the fill plug C Gradually open the suction shut off valve A until the liquid flows from the fill plug C Close the fill plug C e Open shut off valve B Vent the pump on discharge side for example via a venting valve D on discharge side see Figure 8 Example installation of a pump under pressure operation e Close the venting option on discharge side Close the discharge shut off valve B repeatthese steps until all air is removed from the pump Make sure that the suction shut off valve is entirely open R
9. e in the suction line Vent the suction line Install the suction line with pump end higher than the other end Pump sucks air because of leakage in the suction line Repair the leakage Water flow too low So air bubbles clog up in the pump Make sure the flow increases or use a smaller pump The diameter of the suc tion line is too small Increase the diameter of the suction line Capacity of water meter in the supply line is too small Increase the capacity of the water meter Foot valve blocked Clean the foot valve The impeller the diffuser or stage is blocked Clean the inside of the pump O ring between impeller and diffuser is gone Replace the O rings O ring not resistant to the medium to be pumped Replace O ring by an O ring with better resistance 10 2 Torques of vent and draining plugs Table 8 Torques o c E 2 0 2 m o o o os 5 t SE o z a ez ic PEHD G1 4 3 Locations E and F in fig 3 DPHM C 2 4 6 19 11 Annexes 11 1 EC declaration of conformity DP Pumps Kalkovenweg 13 2401 LJ Alphen aan den Rijn The Netherlands Tel 31 0 172 48 83 88 Hereby declares as manufacturer entirely on his own responsibility that the products Horizontal multi stage centrifugal pumps series DPHM C Serial number 18 2012 1000000 0001 52 2016 9999999 9999 to which this declaration refers i
10. e pressure using a G Y connection 5 6 Working range Table 5 General working range specification Pump type BPHM noe Ambient temperature C 20upto30 50 11 75 Medium temperature C 10 up to 60 Minimum inlet pressure NPSH 1m Viscosity cSt 1 100 4 Density kg m 1000 2500 z Cooling forced motor cooling Minimum frequency Hz 30 Maximum frequency Hz 60 5 oi Maximum number of starts see motor data sheet Noise emission ER see motor data sheet Allowable size of solids pumped 5 um to 1 mm 1 Avoid freezing the pump 2 Ifthe ambient temperature exceeds the above value or the motor is located more than 1000 m above sea level the motor cooling is less effective and could require an adapted motor power Please contact your supplier for more detailed advice 3 Single phase motors are equipped either with a ther mal circuit breaker or motor winding protection see 2 3 2 Motor protection Please contact your supplier for more detailed information about your motor protec tion 4 Deviation in viscosity and or density could require an adapted motor power Please contact your supplier for more detailed advice 5 Pumps that are intended for 50 Hz operation may not be connected to 60 Hz power supply 6 Frequent start stops in particular in combination with higher pressure differences Ap may result in a short ened product lifetime Consult your supplier fo
11. echanical seal 2 Thoroughly clean and degrease the running surfaces 3 Assemble the mechanical seal again and retry start up If this doesn t solve the shaft leakage replacement of the mechanical seal is necessary 8 Operation 8 1 Operation The pump is controlled externally and therefore does not need any operation guidance 15 16 9 Maintenance 9 1 Introduction WARNING Observe the general safety precautions for installation maintenance and repair Regular maintenance is necessary for the correct operation of a pump Please contact your supplier for maintenance of the pump 9 2 Maintaining the pump for an extended period of non operation Turn the shaft every three months This protects the seals from seizure Protect the pump if there is a risk of frost Proceed as follows Close all pump valves Drain each pump and or the system Remove all plugs from the pump Open the shut off and fill air vent plug if present Pdon gt 1 period may vary per application or medium Please consult your sales representative for application details 10 Failures 10 1 A Problem Leakage along the shaft WARNING repair Failure table Observe the general safety precautions before installation maintenance and Possible cause Running surfaces of the mechanical seal worn or damaged Possible solution Replace the mechanical seal Checkpoints Check the pump for dirt a
12. enance and repairs Secure this disconnection WARNING Surfaces of a pump can be hot after continuous operation WARNING Make sure that no one can be near rotating components when starting a pump WARNING Handle a pump with dangerous liquids with the utmost care Avoid danger for persons or the environment when repairing leakages draining liquids and venting It is strongly recommended to place a leakage tray under the pump WARNING Immediately following completion of the work all safety relevant and protective devices must be re installed and or re activated WARNING Please observe all instructions set out in the chapter Commissioning Start up before returning the product to service gt PEPE PB 4 5 Environmental aspects 4 5 1 General The products of DP Pumps are designed to function in an environmentally friendly way during their entire lifetime Therefore when applicable always use biodegradable lubricants for maintenance Y ENVIRONMENTAL INSTRUCTION amp amp Always act according to the laws by laws regulations and instructions with respect to health safety and the environment 4 5 2 Dismantling The owner is responsible for the dismantling and environmentally friendly disposal of the product ENVIRONMENTAL INSTRUCTION 3 amp Ask at the local government about the re use or the environmentally friendly processing of discarded materials 5 Pump Introduction 5 1 Model ke
13. intended use described below The ntended use as laid down in ISO 12100 2010 is the use for which the technical product is intended according to the specifications of the manufacturer The use of the product has been described in the sales brochure and in the user manual Always observe the instructions given in the user manual When in doubt the product must be used as becomes evident from its construction version and function 5 4 Operation 20131394 Figure 3 DPHM C 2 4 6 The rotating impeller causes the pressure at the inlet of the impeller to drop This decrease in pressure creates the flow through the suction connection A Every stage B consists of an impeller and a diffusor The capacity of the pump is determined by the size of the passageway of the stage The pressure of the stage is determined by the diameter of the impeller Because of the modular type of construction it is possible to choose the number of impellers most suited to the required duty point After leaving the last impeller the medium flows between the pump stages and the outer sleeve C and exits the pump at the discharge connection D d 10 5 5 Measuring draining and venting The pump is provided with plugs for measuring draining and venting Connection E is meant to fill and vent the pump or to measure the inlet suction pressure using a G Y connection Connection F is meant to drain the pump or to measure the discharg
14. on 18 Problem Possible cause Possible solution Checkpoints Pump is vibrating or noisy Pump does not work in its Select another pump or working range adjust the system to work within its working range Pump is standing on an Level the surface uneven surface Malfunction Internal blockage in the Have the pump inspected pump by a certified company Pump does not start No voltage on the power Check the power supply Circuit terminal Main switch Fuses The motor is running but the pump does not work Check the motor safety relay e Earth leakage switch Protective relay Thermal motor safety switch triggered The coupling between pump and motor shaft is loose when applicable Reset the thermal motor safety Contact the sup plier if this problem occurs more often Tighten the connecting screws to the required torque Check if the correct value is set Find the correct value lhom on the motor type plate The pump shaft is broken Contact the supplier Pump supplies insufficient capacity and or pressure Outlet and or inlet shut off valve is closed Open both shut off valves There is air in the pump Vent the pump The suction pressure is insufficient Increase the suction pres sure Pump rotates in the wrong direction Change over L1 and L2 of the three phase supply The suction line has not been vented Air bubbl
15. r such applications 7 Only the noise emission of the motor is documented IS ATTENTION The temperature difference between the medium and the pump should never exceed 60 C The pump must be filled heated up slowly in any case where the difference between pump and medium is more then 30 C to avoid any chance of a thermal shock For minimum maximum flow at medium temperature of 20 C see table 6 Minimum maximum capacity Qmin max for higher temperatures see figure 4 Minimum capacity vs temperature in of Q optimum Table 6 Minimum maximum capacity Q min max size Gmin max m h 2 pole 50 Hz 60 Hz Min Max Min Max 2 0 2 3 3 0 2 4 0 4 0 4 6 5 0 5 7 8 6 0 6 9 0 0 8 10 8 11 4 Q 96 10 10 9 5 X 40 45 50 55 T C eo Figure 4 Minimum capacity vs temperature in 6 of Q optimum 4431 6 Transport 6 1 Transport Always observe the directions as indicated on the installation by means of stickers 1 Transport the installation in the position as indicated on the pallet or packaging 2 Make sure that the installation is stable 3 Observe the instructions on the packaging if present 6 2 Storage Fill the pump with glycol in order to protect it against the risk of frost Table 7 Storage Storage tambient C Max rel humidity 10 40 80 at 20 C not condensing 6 2 1 Inspection during storage 1 Turn the
16. re of any and all rights to claims for damages For example in particular non compliance can result in e failure of important pump system functions failure of prescribed maintenance and servicing practices injury to persons by electrical mechanical and chemical effects hazard of the environment due to leakage of hazardous substances explosions Depending on specific activities extra safety measures may be required Contact DP Pumps if a potential danger arises during use IS ATTENTION The owner of the product is responsible for compliance with the local safety regulations and internal company guidelines IS ATTENTION Not only must the general safety instructions laid down in this chapter on Safety be complied with but also the safety instructions outlined under specific headings 4 2 Users All personnel involved in the operation maintenance inspection and installation of the product must be fully qualified to carry out the work involved and be aware of all applicable responsibilities authorisations and super visions If the personnel in question is not already in possession of the required know how appropriate training and instruction must be provided If required the operator may commission the manufacturer supplier to take care of such training In addition the operator is responsible for ensuring that the contents of the operating instructions are fully understood by the responsible pe
17. roduct supplied is only valid if the product is used in accordance with its designated use as described in the following sections of this manual The limits stated in the data sheet must not be exceeded under any circumstances The warranty becomes invalid if one or more of the points below occur e The buyer makes modifications himself The buyer carries out repairs himself or has these carried out by a third party The product has been handled or maintained improperly e The product has non original DP Pumps spare parts fitted DP Pumps repairs defects under warranty when e They are caused by flaws in the design the material or the production Theyare reported within the warranty period Other terms of warranty have been included in the general terms of delivery which are available upon request 4 Safety and environment 4 1 General This DP Pumps product has been developed using state of the art technology it is manufactured with utmost care and subject to continuous quality control DP Pumps does not accept any liability for damage and injury caused by not observing the directions and instructions in this manual or in cases of carelessness during the installation procedure use and maintenance of the product Non compliance with safety instructions can jeopardize the safety of personnel the environment and the product itself Non compliance with these safety instructions will also lead to forfeitu
18. rsonnel 4 3 Safety provisions The product has been designed with the greatest possible care Original parts and accessories meet the safety regulations Modifications in the construction or the use of non original parts may lead to a safety risk IS ATTENTION Make sure that the product operates within its working range Only then the product performance is guaranteed 4 3 1 Labels on the product The icons warnings and instructions applied to the product are part of the safety provisions The labels may not be removed or covered Labels must remain legible during the entire life of the product Replace damaged labels immediately 4 4 Safety precautions 4 4 1 During normal use e Contact the local electricity company for questions about the power supply Protect the parts that can become hot making direct contact impossible When applicable always place undeformed coupling guards to protect the coupling before putting the pump into use Make sure that the coupling guards are never in contact with the rotating coupling Always close the terminal box of the motor Always close the control panel where applicable d 4 4 2 During installation maintenance and repair Only authorised personnel may install maintain and inspect the product and repair electrical components Observe the local safety regulations WARNING Always disconnect the energy supply to the product first before installation maint
19. s in accordance with the following standard EN 809 1998 A1 2009 AC 2010 according to the provisions of the harmonized standard for pumps and which implies the regulations of Machine directive 2006 42 EC EMC directive 2004 108 EC in the most recent form The pump is subject to this declaration of conformity as a stand alone product Make sure the appliance or installation in which the pump is built in has got a declaration of compliance with the directives listed above for its complete assembly Alphen aan den Rijn 01 03 2014 Authorized representative W Ouwehand technical director 20 22 dp pumps dp pumps P O Box 28 2400 AA Alphen aan den Rijn The Netherlands t 31 172 48 83 88 f 31 172 46 89 30 dp dp pumps com www dp pumps com 11 2014 BE00000554 B Can be changed without prior notice Original instructions
20. shaft every three months and just before putting into operation 11 12 7 1 Installation instructions Setting up the pump ATTENTION Avoid stress in the pump casing caused by misalignment in the piping system Please see table below ATTENTION Pumps which do not stand steady or stable on their own should be mounted on a rigid and stable base ATTENTION Locate the pump at the place with the lowest risk for noise nuisance 906 90 90 0 04 950 90 hos d Oe UL 20 eL t Oo o O Q O O O Figure 5 DPHM C not connected 20131398 Place and install the pump on a level stable surface in a dry and frost proof room Place the pump as close to the source tank as possible Make sure that sufficient air can reach the cooling fan of the motor For this purpose the free space above the cooling fan should be at least 1 4 of the diameter of the fan hood air intake It is advised to install a shut off valve on the supply and on the delivery connection of the pump To avoid medium flowing back through the pump when idle make sure a non return valve is installed 6 To the suction line should apply 1 2 3 Figure 6 Terminal box and fan hood sticker 100 airtight No camber Running from the lowest point in the tank straight to the pump Provided with a foot valve that shuts off well making sure that the suction line is always filled with water If the diameter
21. t which can be accessed by all personnel Icons and symbols In this manual and in all accompanying documentation the following icons and symbols are used gt E WARNING Danger of electric Voltage Safety sign according to IEC 417 5036 WARNING Operations or procedures if carried out without caution may cause personal injury or damage to the product General hazard sign according to ISO 7000 0434 IS ATTENTION Is used to introduce safety instructions whose non observance may lead to damage to the product and its functions OY ENVIRONMENTAL INSTRUCTION Remarks with respect to the environment 2 Identification service and technical support 2 1 The name plate indicates the type series size main operating data and identification number Please quote this information in all queries repeat orders l and particularly when ordering spare parts If you Obtaining data and information DPHM C 2 4 6 need any additional information or instructions Q exceeding the scope of this manual or in case of a damage please contact DP Pumps nearest customer service centre a Figure 2 Duty point g DPHMC 4 6 B 1 1kW 50Hz dppumps Gh iD 290048451060M Seal Ca Ce EPDM a 4 3 mh nfix 2880rpm d H 404m T 10 60 C gt PO p PN10 x Prod 07 2014 1103153 4682 x Figure 1 Pump with motor 2 Table 1 Description nameplate Indication Meaning DPHMC 4 6 B Model key design version
22. y Table 4 Model key Example DP H M C 2 2 B Label DP Product Label Material H Horizontal Construction M All hydraulic parts Stainless Steel 1 4301 AISI 304 with close coupled motor C Cast Iron pump casing Connections DIN connection size suction G 5 4 discharge G 1 2 Size Capacity in m h at Qopt 12 Number of stages B Design version B 5 2 Description of the product The horizontal multi stage centrifugal pump is designed for pumping clean or slightly aggressive watery mediums The pump is easy to install commission and operate The hydraulic assembly is driven by an electric motor All hydraulic parts of the pump are made of stainless steel Pump casings are available in stainless steel or cast iron 5 3 Intended use The pumps DPHM are suitable to transport and increase the pressure of cold and hot water without wear to parts within the indicated working range The transport of liquids with a different viscosity or density than water is possible as well For this a motor with an adjusted power could be required Ask DP Pumps or your distributor for advice Any other or further use of the pump is not in conformity with its intended use DP Pumps does not accept any liability for any damage or injury that results from this The pump is produced in accordance with the current standards and guidelines Use the pump only in a perfect technical state in conformance with the
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