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GRUNDFOS DATA BOOKLETNB, NBG, NK, NKG125-400/150-125-400/150-315.1/ 200-150-315.1According to EN 733 or ISO 285860 Hz
NB, NBG, NK, NKGTable of erformance range4NB, 2-poleNK, 2-poleNBG, 2-poleNKG, 2-poleNB, 4-poleNK, 4-poleNBG, 4-poleNKG, 4-poleNB, 6-poleNK, 6-poleNBG, 6-poleNKG, 6-pole456789101112131415Product range16NBG, NKG, 2-poleNB, NK, 4-poleNBG, NKG, 4-poleNB, NK, 6-poleNBG, NKG, 6-pole1617171818NK/NKG bare shaft pumps19NK/NKG, centre-line outletOverview1919Performance curves and technical data20NBG, NKG 2-poleNB, NK 4-poleNBG, NKG 4-poleNB, NK 6-poleNBG, NKG 6-pole2022263034Base frames39Dimensional sketches forNK, NKE, NKG, NKGE base framesNB base frames3940Further product documentation41WebCAPSWinCAPS4142
NB, NBG, NK, NKG1Introduction1. IntroductionIntroductionThis data booklet describes an extension ofthe NB, NBG, NK, NKG product range and thus of thecomplete end-suction performance range. The newpumps are designed according to EN 733 or ISO 2858.Information not specified in this data booklet can befound in the NB, NBE, NK, NKE data booklet, productno 96695638, and the NBG, NBGE, NGK, NKGE databooklet, product no 96695640.The NB/NK 125-400 and the NBG/NKG 150-125-400performance curves in this data booklet are updatedwith regard to efficiency and NPSH.The NB/NK 150-315.1 andthe NBG/NKG 200-150-315.1 are new pump modelsfeaturing improved duty points.The pumps can be seen as a supplement to theexisting NB/NK 150-315 and NBG/NKG 200-150-315as all installation dimensions are same.3
NB, NBG, NK, NKG2Performance range2. Performance rangeNB, 2-poleH[m]NB2002-pole, 60 HzCast 681015203040506080100150200300400 500 600800 1000Q [m³/h]H[m]TM05 4302 221215NB2002-pole, 60 HzStainless 5681015203040506080100150200300400 500 600800 1000Q [m³/h]4TM05 4303 221215
NB, NBG, NK, NKG2H[m]Performance rangeNK, 2-poleNK2002-pole, 60 HzCast 5-12520121045681015203040506080100150200300400 500 600800 1000Q [m³/h]H[m]TM05 4304 221215NK2002-pole, 60 HzStainless 65-12520121045681015203040506080100150200300400 500 600800 1000Q [m³/h]TM05 4305 2212155
NB, NBG, NK, NKG2Performance rangeNBG, 2-poleH[m]NBG2002-pole, 60 HzCast 40506080100150200300400 500 600800 1000Q [m³/h]H[m]TM05 4306 221215NBG2002-pole, 60 HzStainless 040506080100150200300400 500 600800 1000Q [m³/h]6TM05 4307 221215
NB, NBG, NK, NKG2H[m]Performance rangeNKG, 2-poleNKG2002-pole, 60 HzCast 80100150200300400 500 600800 1000Q [m³/h]H[m]TM05 4308 221215NKG2002-pole, 60 HzStainless 080100150200300400 500 600800 1000Q [m³/h]TM05 4309 2212157
NB, NBG, NK, NKG2Performance rangeNB, 4-poleH[m]NB1504-pole, 60 Hz120Cast 0-20080-160632-125544568101520304050 6080100150200300400 500 600800 10001500Q [m³/h]H[m]TM05 4310 2212100-16032-125.1NB1504-pole, 60 Hz120Stainless 520304050 6080100150200300400 500 600800 10001500Q [m³/h]8TM05 4311 2212100-16032-125.1
NB, NBG, NK, NKG2H[m]Performance rangeNK, 4-poleNK1504-pole, 60 Hz120Cast 5-125150-20080-160632-125544568101520304050 6080100150200300400 500 600800 10001500Q [m³/h]H[m]TM05 4312 2212100-16032-125.1NK1504-pole, 60 Hz120Stainless 520304050 6080100150200300400 500 600800 10001500Q [m³/h]TM05 4313 2212100-16032-125.19
NB, NBG, NK, NKG2Performance rangeNBG, 4-poleH[m]NBG1504-pole, 60 Hz120Cast 050 6080100150200300400 500 600800 10001500Q [m³/h]H[m]TM05 4314 221250-32-160.110NBG1504-pole, 60 Hz120Stainless 1520304050 6080100150200300400 500 600800 10001500Q [m³/h]10TM05 4315 221250-32-160.110
NB, NBG, NK, NKG2H[m]Performance rangeNKG, 4-poleNKG1504-pole, 60 Hz120Cast 0-1125-80-315125-100-315150-125-315200-150-3 -12580-65-125100-80-125544568101520304050 6080100150200300400 500 600800 10001500Q [m³/h]H[m]TM05 4316 221250-32-160.110NKG1504-pole, 60 Hz120Stainless 50- 310-150- 1520304050 6080100150200300400 500 600800 10001500Q [m³/h]TM05 4317 221250-32-160.11011
NB, NBG, NK, NKG2Performance rangeNB, 6-poleH[m]NB80706-pole, 60 Hz60Cast 0200300400500 6008001000Q [m³/h]H[m]TM05 4318 22123NB80706-pole, 60 Hz60Stainless 6080100150200300400500 6008001000Q [m³/h]12TM05 4319 22123
NB, NBG, NK, NKG2H[m]Performance rangeNK, 6-poleNK80706-pole, 60 Hz60Cast 0200300400500 6008001000Q [m³/h]H[m]TM05 4320 22123NK80706-pole, 60 Hz60Stainless 6080100150200300400500 6008001000Q [m³/h]TM05 4321 2212313
NB, NBG, NK, NKG2Performance rangeNBG, 6-poleH[m]NBG80706-pole, 60 Hz60Cast 0 6008001000Q [m³/h]H[m]TM05 4322 22123NBG80706-pole, 60 Hz60Stainless 3150-15015125-100-25010987150-125-250-315 0-150-200421015203040506080100150200300400500 6008001000Q [m³/h]14TM05 4323 22123
NB, NBG, NK, NKG2H[m]Performance rangeNKG, 6-poleNKG80706-pole, 60 Hz60Cast 05200-150-200421015203040506080100150200300400500 6008001000Q [m³/h]H[m]TM05 4324 22123NKG80706-pole, 60 Hz60Stainless 25010987150-125-250200-150-315200150315 0-150-200421015203040506080100150200300400500 6008001000Q [m³/h]TM05 4325 2212315
NB, NBG, NK, NKG3Product range3. Product rangeThe tables on the following pages show the productranges of NB, NK 125-400, NBG, NKG 150-125-400,NB, NK 150-315.1 and NBG, NKG 200-150-315.1pumps.NBG, NKG, 2-pole60 Hz, 2-poleNBG pumpsE, F, G, HK, L, MN, R, PDouble seal arrangementCartridge seal - single/doublePump housing with feetPump with base frameA, B, C, D, SE, F, G, HK, L, MN, R, PStuffing box, cast iron onlyDouble seal arrangementCartridge seal - single/doubleStandard bearing bracketHeavy duty bearing bracketPN 10PN 16DIN (code F)ANSI (code G)JIS (code J)PN 16PN 25PN 40DIN (code F)ANSI (code G)JIS (code J)---------- - - -FF --LLLLLL 48 55 48 55Shaft seal diameter [mm]A, B, C, D, S-d5 [mm]NBG designFlangestandardOversize shaftFlangerating 1)3533981) F fixed flange. L loose flange.16FlangeFlangerating 1) OptionsStainless steelpumpCast iron pumpP2 [kW]Pump typeMaterialcodeNKG pumps
NB, NBG, NK, NKG360 Hz, 4-poleNB pumpsFlangeFlangeFlangeFlangerating 1) standard rating 1) standardNB designA, B, C, D, SE, F, G, HK, L, MN, R, PDouble seal arrangementCartridge seal - single/doublePump housing with feetPump with base frameA, B, C, D, SE, F, G, HK, L, MN, R, PStuffing box(only cast iron versions)Double seal arrangementCartridge seal - single/doubleStandard bearing bracketHeavy-duty bearing bracketPN 10PN 16DIN (code F)ANSI (code G)JIS (code J)PN 10PN 16DIN (code F)ANSI (code G)JIS (code J)d5 [mm]Shaft seal diameter [mm]OptionsOversize shaft5575125-400901101323037150-315.1 455575MaterialcodeOptionsStainless steelpumpCast iron pumpE-solutionP2 [kW]Pump typeMaterialcodeNK pumpsProduct rangeNB, NK, 4-poleCUECUECUECUECUECUECUECUECUECUE-CCCCCCCCCC - --- - --- -FFFFFFFFFFFFFFF- --LLLLLLLLLLLLLLLLLLLL --42424242424242424242484848484848484848481) F fixed flange. L loose flange.NBG, NKG, 4-pole60 Hz, 4-poleNBG pumpsA, B, C, D, SE, F, G, HK, L, MN, R, PDouble seal arrangementCartridge seal - single/doublePump housing with feetPump with base frameA, B, C, D, SE, F, G, HK, L, MN, R, PStuffing box, (cast iron only)Double seal arrangementCartridge seal - single/doubleStandard bearing bracketHeavy duty bearing bracketPN 10PN 16DIN (code F)ANSI (code G)JIS (code J)PN 16PN 25PN 40DIN (code F)ANSI (code G)JIS (code J)d5 [mm]Shaft seal diameter [mm]FlangestandardNBG designFlangerating 1)Oversize shaft200-150-315.1FlangeFlangerating 1) tionsStainless steelpumpCast iron pumpP2 [kW]Pump typeMaterialcodeNKG ECUECUECUECUE-CCCCCCCCCCC - --- - - FFFFFF-FFFFFFFFFFF --LLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLL 424242424242484848484848484848484855555555551) F fixed flange. L loose flange.17
NB, NBG, NK, NKG3Product rangeNB, NK, 6-pole60 Hz, 6-poleNB pumpsFlangeFlangeFlangeFlangerating 1) standard rating 1) standardNB designA, B, C, D, SE, F, G, HK, L, MN, R, PDouble seal arrangementCartridge seal - single/doublePump housing with feetPump with base frameA, B, C, D, SE, F, G, HK, L, MN, R, PStuffing box(only cast iron versions)Double seal arrangementCartridge seal - single/doubleStandard bearing bracketHeavy-duty bearing bracketPN 10PN 16DIN (code F)ANSI (code G)JIS (code J)PN 10PN 16DIN (code F)ANSI (code G)JIS (code J)d5 [mm]Shaft seal diameter [mm]OptionsOversize shaft18.522125-4003037457.511150-315.1 1518.522MaterialcodeOptionsStainless steelpumpCast iron pumpE-solutionP2 [kW]Pump typeMaterialcodeNK pumpsCUECUECUECUECUECUECUECUECUECUE-CCCCCCCCCC - --- - - --- -FFFFFFFFFFFFFFF- --LLLLLLLLLLLLLLLLLLLL --42424242424242424242484848484848484848481) F fixed flange. L loose flange.NBG, NKG, 6-pole60 Hz, 6-poleNBG pumpsA, B, C, D, SE, F, G, HK, L, MN, R, PDouble seal arrangementCartridge seal - single/doublePump housing with feetPump with base frameA, B, C, D, SE, F, G, HK, L, MN, R, PStuffing box, cast iron onlyDouble seal arrangementCartridge seal - single/doubleStandard bearing bracketHeavy duty bearing bracketPN 10PN 16DIN (code F)ANSI (code G)JIS (code J)PN 16PN 25PN 40DIN (code F)ANSI (code G)JIS (code J)d5 [mm]Shaft seal diameter [mm]FlangestandardNBG designFlangerating 1)CUECUECUECUECUECUECUECUECUECUE-CCCCCCCCCC - --- - - - FFFFF-FFFFFFFFFF --LLLLLLLLLLLLLLLLLLLLLLLLLLLLLL 42424242424242424242484848484848484848481) F fixed flange. L loose flange.18FlangeFlangerating 1) standardOptionsOversize shaft18.522150-125-4003037457.511200-150-315.1 1518.522MaterialcodeOptionsStainless steelpumpCast iron pumpE-solutionP2 [kW]Pump typeMaterialcodeNKG pumps
NB, NBG, NK, NKG4NK/NKG bare shaft pumps4. NK/NKG bare shaft pumpsNK/NKG, centre-line outletxfaDN tMDN snd5h2lch1tS2bm2TM01 9274 4606S1wMn3m1n2n1MDrain plug/priming plugPump [mm]TypeNK 125-400NK 150-315.1NKG 150-125-400NKG 200-150-315.11)DNs DNt150200150200125150125150Supporting feet [mm]Shaft M16c d53833382242424248Weight [kg]lxtnCI 1) SS 254326243255247330CI: Cast iron version2)SS: Stainless steel versionX is the minimum pull-back length of the bearing bracket required for service of impeller and shaft seal.Overview2-polePump typeNBG, NKG 200-150-315.14-poleSee page20Pump typeNB, NK 125-400NB, NK 150-315.1NBG, NKG 150-125-400NBG, NKG 200-150-315.16-poleSee page22242628Pump typeNB, NK 125-400NB, NK 150-315.1NBG, NKG 150-125-400NBG, NKG 200-150-315.1See page3032343619
5NBG, NKG 200-150-315.12-polePerformance curves and technical data5. Performance curves and technical dataNBG, NKG 2-polep[kPa]H[m]2000200NBG/NKG 200-150-315.1180ISO 9906 Annex A16002-pole, 60 Hz16070 %/288140120075 % 78 %81 %/27984 %86.4 %1208008020/288 (NPSH)/279 (NPSH)60400NPSH[m]84.8 %10010400P2 0[kW]100200300400500600700800900400Q 0800900Q [m³/h]250Q [l/s]TM03 8013 0107TM03 8010 01070100TM05 4273 221220020
5Pump typeMotor typeStandard 2 x 2212 x 23[mm]8 x 228 x 23L NKGL NKGE m]460500[mm]928/-1041/-11C11C--Base frame no.3)Design 4)L NBG[mm]-L NBG [mm]--n2[mm]--b[mm]--s1[mm]--H[mm]--LB 2)[mm]--AD2)[mm]--AG2)-[mm]-LL 7/24672903/2898Weight NKGE, CI 1)[kg]-/--/-Weight NBG, CI[kg]--Weight NBGE, CI[kg]--Weight diff. SS[kg]33Weight NKG, CI 1)1)2)3)4)Siemens 398-[mm]h4 2)WeightdataSiemens 353DNs1)NBG data200-150-315.1/288PNSdNKG data200-150-315.1/279Performance curves and technical dataNBG, NKG 200-150-315.12-poleData of pump with standard coupling / spacer coupling.Dimension of pump with IE2 range standard motor / dimension of pump with E-motor (built-in frequency converter).For information about NKG base frames, see section 6. Base frames.For information about NBG designs, see NBG, NBGE, NKG, NKGE data booklet prod. no 96695640, page 38.For number of support blocks needed, see NBG, NBGE, NKG, NKGE data booklet prod. no 96695640, page 295.Note: For NBG pumps with a motor frame size of 225 or above a base frame is available as an option.See NBG, NBGE, NKG, NKGE data booklet prod. no 96695640, page 267.21
5NB, NK 125-4004-polePerformance curves and technical dataNB, NK 4-poleH[m]NB/NK 125-40013012004-pole, 60 Hz120ISO 9906 Annex A110100076.9 %78.0 %/3898070 %72.8 %50400/438 (NPSH)68 %406220P2[kW]84/333 (NPSH)30200NPSH[m]74.7 %/3336074 %76.4 %/3697060074 %/4149080065 % 68 % 71 %/438100004080120160200240280320360400440Q 02406028080320360100400440120Q [m³/h]Q [l/s]TM03 4051 1806TM03 4182 4106040TM05 2349 4911p[kPa]22
5Pump typeMotor typeStandard s 250MSiemens 280SSiemens 280MSiemens 315.1SSiemens m]400400400400400Ss[mm]8 x 238 x 238 x 238 x 238 x 23Sd[mm]8 x 198 x 198 x 198 x 198 x 19L NKL NKE /-945/-945/103)Design 4)L NB[mm]9101010CCCCC441441441471471L NB [mm]M20M20M20M20M20H[mm]250280280315.1315.1LB 2)[mm]817/-820/-930/-932/-1092/-AD /-379/-379/-LL 57457508508K[mm]2424242828Weight NK. CI eight NKE. CI 1)[kg]-/--/--/--/--/-Weight NB. se frame no.Weightdata125-400/389DNsh4 2)NB data125-400/369PN1)NK data125-400/333Weight NBE. CI[kg]-----Weight diff. SS[kg]-7-7-7-7-7Performance curves and technical dataNB, NK 125-4004-poleData of pump with standard coupling / spacer coupling.Dimension of pump with IE2 range standard motor / dimension of pump with E-motor (built-in frequency converter).For information about NK base frames, see section 6. Base frames.For information about NB designs, see NB, NBE, NK, NKE data booklet prod. no 96695638, page 33.For number of support blocks needed, see NB, NBE, NK, NKE data booklet prod. no 96695638, page 284.Note: For NB pumps with a motor frame size of 225 or above a base frame is available as an option.See NB, NBE, NK, NKE data booklet prod. no 96695638, page 257.23
5NB, NK 150-315.14-polePerformance curves and technical datap[kPa]H[m]NB/NK 150-315.1706004-pole, 60 HzISO 9906 Annex A60/3335040074 % 77 %80 % 83 %86 %87.9%/3014086.1 %/2783020083.7 %/265/2512086 %83 %83.7 %80 %77 %81.4 %/333 (NPSH)10NPSH[m]2010/251 (NPSH)00P2 0[kW]5010015020025030035040045050055060080Q 25030080350100400450120500140550600160Q [m³/h]Q [l/s]TM03 4051 1806TM03 4182 4106050TM05 4274 2212024
5Pump typeMotor typeStandard ens 200LSiemens 225SSiemens 225MSiemens 250MSiemens 400400400400Ss[mm]8 x 218 x 218 x 228 x 238 x 24Sd[mm]8 x 238 x 238 x 238 x 238 x 23L NKL NKE /-772/-847/103)Design 4)L NB[mm]9999CCCCC431461461461461L NB M20M20M20H[mm]200225225250280LB 2)[mm]659649709817/-820/-AD LL 06457KAG1)2)3)4)150-315.1/301[mm]Base frame no.Weightdata150-315.1/287DNsh4 2)NB data150-315.1/265PN1)NK data150-315.1/251[mm]1919192424Weight NK. CI 1)[kg]628/634747/742787/782909/9081159/1153Weight NKE. CI 1)[kg]-/--/--/--/--/-Weight NB. CI[kg]425522562702817Weight NBE. CI[kg]-----Weight diff. SS[kg]33333Performance curves and technical dataNB, NK 150-315.14-poleData of pump with standard coupling / spacer coupling.Dimension of pump with IE2 range standard motor / dimension of pump with E-motor (built-in frequency converter).For information about NK base frames, see section 6. Base frames.For information about NB designs, see NB, NBE, NK, NKE data booklet prod. no 96695638, page 33.For number of support blocks needed, see NB, NBE, NK, NKE data booklet prod. no 96695638, page 284.Note: For NB pumps with a motor frame size of 225 or above a base frame is available as an option.See NB, NBE, NK, NKE data booklet prod. no 96695638, page 257.25
5NBG, NKG 150-125-4004-polePerformance curves and technical dataNBG, NKG 4-poleH[m]NBG/NKG 150-125-40013012004-pole, 60 Hz120ISO 9906 Annex A110100076.9 %78.0 %/3898070 %72.8 %50400/438 (NPSH)68 %40/333 (NPSH)6220P2[kW]8430200NPSH[m]74.7 %/3336074 %76.4 %/3697060074 %/4149080065 % 68 % 71 %/438100004080120160200240280320360400440Q 02406028080320360100400440120Q [m³/h]Q [l/s]TM03 8013 0107TM03 8010 0107040TM05 2345 4911p[kPa]26
5Pump typeMotor typeStandard Siemens 250MSiemens 280SSiemens 280MSiemens 315.1SSiemens m]400400400400400Ss[mm]8 x 238 x 238 x 238 x 238 x 23Sd[mm]8 x 198 x 198 x 198 x 198 x 19L NKGL NKGE /-945/-945/103)Design 4)9101010CCCCC441441441471471L NBG[mm]L NBG [mm]M20M20M20M20M20H[mm]250280280315.1315.1LB 2)[mm]817/-820/-930/-932/-1092/-AD /-379/-379/-LL 57457508508K[mm]2424242828Weight NKG, CI eight NKGE, CI 1)[kg]-/--/--/--/--/-Weight NBG, m]Base frame no.Weightdata150-125-400/389DNsh4 2)NBG data150-125-400/369PN1)NKG data150-125-400/333Weight NBGE, CI[kg]-----Weight diff. SS[kg]-7-7-7-7-7Performance curves and technical dataNBG, NKG 150-125-4004-poleData of pump with standard coupling / spacer coupling.Dimension of pump with IE2 range standard motor / dimension of pump with E-motor (built-in frequency converter).For information about NKG base frames, see section 6. Base frames.For information about NBG designs, see NBG, NBGE, NKG, NKGE data booklet prod. no 96695640, page 38.For number of support blocks needed, see NBG, NBGE, NKG, NKGE data booklet prod. no 96695640, page 295.Note: For NBG pumps with a motor frame size of 225 or above a base frame is available as an option.See NBG, NBGE, NKG, NKGE data booklet prod. no 96695640, page 267.27
5NBG, NKG 200-150-315.14-polePerformance curves and technical datap[kPa]H[m]NBG/NKG 200-150-315.1706004-pole, 60 HzISO 9906 Annex A60/3335040074 % 77 %80 % 83 %86 %87.9%/3014086.1 %/2783020083.7 %/265/2512086 %83 %83.7 %80 %77 %81.4 %/333 (NPSH)10NPSH[m]2010/251 (NPSH)00P2 0[kW]5010015020025030035040045050055060080Q 25030080350100400450120500140550600160Q [m³/h]Q [l/s]TM03 8013 0107TM03 8010 0107050TM05 4275 2212028
5Pump typeMotor type200-150-315.1/251 200-150-315.14/265 200-150-315.1/278Standard MotorE-MotorP2CommondataNBG/NKG[kW]Siemens 225MSiemens 00400400400Ss[mm]12 x 2312 x 2312 x 2312 x 2312 x 23Sd[mm]8 x 238 x 238 x 238 x 238 x 23L NKGL NKGE /-807/-877/103)9999CCCCC444474474474474L NBG[mm]L NBG M20M20M20H[mm]200225225250280LB 2)[mm]659649709817/-820/-AD LL 133149149168190AG1)2)3)4)Siemens 225S-[mm]Base frame no.Design 4)WeightdataSiemens 280SSiemens 200LDNsh4 2)NBG data200-150-315.1/333PN1)NKG 56356406457K[mm]1919192424Weight NKG, CI t NKGE, CI 1)[kg]-/--/--/--/--/-Weight NBG, CI[kg]435533573720835Weight NBGE, CI[kg]-----Weight diff. SS[kg]33333Performance curves and technical dataNBG, NKG 200-150-315.14-poleData of pump with standard coupling / spacer coupling.Dimension of pump with IE2 range standard motor / dimension of pump with E-motor (built-in frequency converter).For information about NKG base frames, see section 6. Base frames.For information about NBG designs, see NBG, NBGE, NKG, NKGE data booklet prod. no 96695640, page 38.For number of support blocks needed, see NBG, NBGE, NKG, NKGE data booklet prod. no 96695640, page 295.Note: For NBG pumps with a motor frame size of 225 or above a base frame is available as an option.See NBG, NBGE, NKG, NKGE data boo
150-200 125-200 100-250 100-200 100-160 32-250 40-250 50-250 80-250 80-200 80-160 65-200 65-160 65-125 50-200 50-160 50-125 40-200 40-160 40-125 32-200 32-160 32-125 32-200.1 32-160.1 32-125.1 4 5 6 8 10 15 20 30 40 50 60 80 100 150 200 300 400 500 600 800 1000 Q [m³/h] 10 12 15 20 30 40 50 60 70 80 100 120 150 200 [m] H NK 2-pole, 60 Hz .
