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1、NWSDBSBDS&IWaterPump:SpecificationsCAPC:MPC:DPC:October2010–Version26c1SPECIFICATIONSFHIZONTALSHAFTDRIVENDOUBLESUCTIONPUMPINGSETSACCESSIESTABLEOFCONTENTPageNo.1.0PART1–GENERAL1.1SCOPE6c31.2TYPE6c31.3UNITRESPONSIBILITY6c3

2、1.4DESIGNREQUIREMENTS6c31.5CRITICALSPEEDS6c41.6FACTYTESTING6c41.6.1Materials6c41.6.2PerfmanceTests6c41.6.3HydrostaticTests6c41.6.4VibrationTests6c51.6.5MotTests6c51.7ENVIRONMENTALCONDITIONS6c51.8Warranty6c52.0PART2–PRODU

3、CTS2.1PUMPS6c62.1.1OperatingConditions6c62.1.2Speed6c72.1.3Efficiency6c82.1.4ConstructionMaterials6c82.1.5Coupling6c82.1.6PressureGauges6c82.1.7Construction6c82.1.8CalibrationofInstruments&Meters6c92.2ELECTRICMOTSLTEQUIP

4、MENT6c102.2.1Mots6c102.2.2Insulation6c102.2.3ThermalProtection6c102.2.4SpaceHeaters6c102.2.5Bearings6c102.2.6MotMounting6c102.2.7Balance6c112.2.8ProtectionofEnclosure6c112.2.9MotPumpCoupling6c112.2.10MotRating6c112.2.11M

5、otControlCentre6c11Revisedon29042013NWSDBSBDS&IWaterPump:SpecificationsCAPC:MPC:DPC:October2010–Version26c3SPECIFICATIONSFHIZONTALSHAFTDRIVENDOUBLESUCTIONPUMPINGSETSACCESSIES1.0PART1GENERAL1.1SCOPEEachpumpingunitshallcon

6、sistofahizontaldoublesuctioncentrifugalpumpcouplingsquirrelcageinductionmotallnecessaryappurtenancestoprovideacompletepumpingsystem.Thecontractshallrequirethatthepumpingunitsspecifiedhereintobesuppliedbyasinglemanufactur

7、er.ThecontractshallsupplyinstallcommissionhoverallequipmenttothesatisfactionoftheEngineer.Thetenderermustvisitthesiteinspectthespacerequirementotherinstallationrequirementsbefemakingthebid.1.2TYPEEachpumpshallbeofthehizo

8、ntallysplitvolutecasingenclosedimpellerdoublesuctioncentrifugaltypedesignedsothattheimpellershaftbearingscanberemovedwithoutdisturbingtheconnectingpipingbottomcasing.Thepumpmotshallbemountedonafabricatedcommonsteelbasefe

9、asymaintenance.1.3UNITRESPONSIBILITYThecontractshallcauseallequipmentspecifiedunderthiscontracttobefurnishedbythepumpmanufacturerwhoshallberesponsibleftheadequacycompatibilityofallpumpingunitcomponents.Anycomponentofeach

10、pumpingunitnotprovidedbythepumpmanufacturershallbedesignedfabricatedtestedinstalledbyfactyauthizedrepresentativesexperiencedindesignmanufactureofsuchcomponents.Thisrequirementhowevershallnotbeconstruedasrelievingthecontr

11、actoftheoverallresponsibilityfthisptionofwk.1.4DESIGNREQUIREMENTSThearrangementsshownonthedrawingsarebaseduponthebestinfmationavailabletotheEngineeratthetimeofdesignisnotintendedtoshowexactdimensionspeculiartoanyspecific

12、equipmentunlessotherwiseshownspecified.Therefeitmaybeanticipatedthatthestructuralsupptsfoundationsconnectingpipingvalvesshowninpartwholemayhavetobechangedindertoaccommodatethepumpingequipmentfurnished.Noadditionalpayment

13、willbemadefsuchchanges.AnysuchchangesshallbesubmittedtotheEngineerfhisapproval.Pumpingunitsshallbedesignedtooperatewithoutoverloadingcavitationsdamagingvibrationatthespecifiedspeedflowheadconditions.Theshutoffheadofthepr

14、oposedpumpsshallbeatleast10%methanthespecifiedheadatthespecifiedcapacity.Motratingshallbeatleast10%methanthepowerrequiredbythepumpatthespecifieddutypointincaseofpumprunningsolo.Incaseofpumpsrunningparallelratingofeachmot

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