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GRUNDFOS PRODUCT GUIDE<strong>CH</strong>, <strong>CH</strong>NHorizontal multistage end-suction pumps
ContentsGeneral descriptionProduct description 3Applications 3<strong>Pump</strong>ed liquids 3Operating conditions 3<strong>Pump</strong> 3Motor 4Performance range 4Further product documentationWebCAPS 24WinCAPS 25IdentificationType key <strong>CH</strong> and <strong>CH</strong>N 5Construction<strong>CH</strong>, <strong>CH</strong>N 2-50 6<strong>CH</strong>, <strong>CH</strong>N 4-60 7<strong>CH</strong> 8-50 8<strong>CH</strong> 12-50 9Material specification 10Curve conditionsCurve conditions 12How to read the curve charts 13Performance curves<strong>CH</strong> 2, <strong>CH</strong>N 2 14<strong>CH</strong> 4, <strong>CH</strong>N 4 15<strong>CH</strong> 8 16<strong>CH</strong> 12 17Electrical data<strong>CH</strong>, <strong>CH</strong>N 2 18<strong>CH</strong>, <strong>CH</strong>N 4 18<strong>CH</strong> 8 18<strong>CH</strong> 12 19Dimensions and weightsDimensions 20<strong>CH</strong>, <strong>CH</strong>N 2 and 4 with ML 71/80 motor 20<strong>CH</strong>, <strong>CH</strong>N 2 20<strong>CH</strong>, <strong>CH</strong>N 4 20<strong>CH</strong> 8 and 12 with ML 71/80 motor 21<strong>CH</strong> 8 21<strong>CH</strong> 12 21<strong>CH</strong> 8 and 12 with ML 90 motor 22<strong>CH</strong> 8 22<strong>CH</strong> 12 22Weights 23<strong>CH</strong>, <strong>CH</strong>N, single-phase 23<strong>CH</strong>, <strong>CH</strong>N, three-phase 232
General description<strong>CH</strong>, <strong>CH</strong>NProduct descriptionThe Grundfos <strong>CH</strong> and <strong>CH</strong>N pumps are non-self-priming,horizontal, multistage, centrifugal pumps.<strong>Pump</strong> and motor are integrated in a compact and userfriendlydesign making the pumps suitable for installationin compact systems.The pump is fitted with a maintenance-free, mechanicalshaft seal and through-going pump-motor shaft.• <strong>CH</strong>: Chambers as well as all moving parts in contactwith the pumped liquid are made of stainless steel.Discharge chamber, suction chamber and base plateare made of cast iron/iron and painted non-glossblack.• <strong>CH</strong>N: Discharge chamber, suction chamber, baseplate as well as all parts in contact with the pumpedliquid are made of stainless steel.The motor is painted non-gloss black.The pump is UL Listed to US and Canadian safety standards.ApplicationsThe <strong>CH</strong> and <strong>CH</strong>N pumps are designed for small domesticand industrial systems.Applications include• Liquid transfer and circulation of liquids within lightindustry and farming• Pressure boosting in single-pump and multi-pumpbooster systems• Domestic water supply• Cooling systems• Air-conditioning systems.<strong>Pump</strong>ed liquids<strong>CH</strong>Thin, clean, non-aggressive and non-explosive liquidswithout solid particles or fibers.<strong>CH</strong>NThin, clean, slightly aggressive and non-explosiveliquids without solid particles or fibers.Operating conditionsLiquid temperature range: 32°F to +176°FMax. ambient temperature: +131°F.The maximum operating pressure depends on thetemperature of the pumped liquid, see table:Max. operating pressure 145 psi (10 bar) 87 psi (6 bar)<strong>CH</strong> 2, <strong>CH</strong>N 2<strong>CH</strong> 4, <strong>CH</strong>N 432°F to +104°F +105°F to +176°F<strong>CH</strong> 8<strong>CH</strong> 1232°F to +131°F +132°F to +176°FMin. inlet pressure:Max. inlet pressure:<strong>Pump</strong>The <strong>CH</strong>, <strong>CH</strong>N pumps are non-self-priming, horizontal,multistage, centrifugal pumps with mechanical shaftseal and through-going pump-motor shaft. The pumpshave axial suction port and radial discharge port andare mounted on a base plate. All movable parts incontact with the pumped liquid are made of stainlesssteel.EPDM or FKM O-rings are available as standard.For pipe connections, see the table:According to the NPSH curveplus a safety margin of 2 feet.Limited by the max. operatingpressure.Connections <strong>CH</strong> 2, <strong>CH</strong>N 2 <strong>CH</strong> 4, <strong>CH</strong>N 4 <strong>CH</strong> 8 <strong>CH</strong> 12Axial suctionportNPT 1 NPT 1¼ NPT 1½ NPT 1½Radial dischargeportNPT 1 NPT 1 NPT 1¼ NPT 1½Drain hole,priming holeRp 3/8 Rp 3/8 Rp ½ Rp ½TM02 5939 4402.Fig. 1 <strong>CH</strong> pump3
General description<strong>CH</strong>, <strong>CH</strong>NMotorThe pump is fitted with a totally enclosed, fan-cooled,squirrel-cage Grundfos motor.Rated speed: 3500 min -1Enclosure class: IP 54Insulation class: FStandard voltages: 1 x 115-230 V,3 x 208-230/4603 x 575 VSingle-phase motors have built-in thermal overloadprotection. Three-phase motors must be connected toa motor starter according to local regulations.Performance range<strong>CH</strong>, <strong>CH</strong>N, 60 HzH[m]807060504030H[ft]280260240220200180160140120100<strong>CH</strong>, <strong>CH</strong>N60 HzISO 9906 Annex A208060<strong>CH</strong> 2 <strong>CH</strong> 4<strong>CH</strong> 8 <strong>CH</strong> 12<strong>CH</strong>N 2 <strong>CH</strong>N 4104020000 5 10 15 20 25 30 35 40 45 50 55 60 65 Q [US GPM]0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 Q [m³/h]TM03 3377 0306.4
Identification<strong>CH</strong>, <strong>CH</strong>NType key <strong>CH</strong> and <strong>CH</strong>NExample <strong>CH</strong>(N) 4 -30 A -B -A -AQQEType rangeRated flow rate in m³/hCode for impellersCode for pump versionCode for pipe connectionCode for materials, excludingplastic and rubber partsCode for shaft seal*Codes for physical dimensions:B : NPT pipe connectionN : Different connection diametersW : Whitworth thread, R p ISO 7/1Codes for materials:A : Basic versionI : Stainless materialsX : Special version.Codes for Shaft seal:A : O-ring seal with fixed driverQ : Silicon carbideE : EPDMU: *Tungsten carbideV : FKM* Only available as non-standardCodes for Impeller:<strong>Pump</strong> typeø90 ø95 ø98 ø130[mm] [mm] [mm] [mm]<strong>CH</strong> 2-30 3<strong>CH</strong> 2-40 4<strong>CH</strong> 2-50 5<strong>CH</strong> 2-60 6<strong>CH</strong> 4-20 2<strong>CH</strong> 4-30 3<strong>CH</strong> 4-40 4<strong>CH</strong> 4-50 5<strong>CH</strong> 8-20 1<strong>CH</strong> 8-25 2<strong>CH</strong> 8-30 1 1<strong>CH</strong> 8-40 2<strong>CH</strong> 12-10 1<strong>CH</strong> 12-20 1<strong>CH</strong> 12-30 1 15
Construction<strong>CH</strong>, <strong>CH</strong>N<strong>CH</strong>, <strong>CH</strong>N 2-50Sectional drawings164164a2153155105 64 49251561591511581546545617225150a285628g79376265 45466 67TM03 2039 3504Fig. 2 <strong>CH</strong>, <strong>CH</strong>N 2-50 with ML 71 motorComponentsPos. Component Pos. Component Pos. Component2 Discharge chamber 56 Base plate 151 Fan cover4 Chamber 62 Stop ring 153,154 Ball bearing6 Suction chamber 64 Spacing pipe 155 Bearing cover plate25 Plug 65 Retainer for neck ring 156 Fan28 Screw 66 Clamp 158 Corrugated spring28g Hexagon head screw 67 Lock nut 159 O-ring37 Gasket 79 Diverting disc 164 Terminal box cover45 Neck ring 105 Shaft seal 164a Terminal box49 Impeller 150a Stator housing 172 Shaft6
Construction<strong>CH</strong>, <strong>CH</strong>N<strong>CH</strong>, <strong>CH</strong>N 4-60Sectional drawing164164a2153 15579 105 64 4964a25156159151158154172256150a285628g62 37 4 4a 47a 66 67TM00 6609 4900Fig. 3 <strong>CH</strong>, <strong>CH</strong>N 4-60 with ML 80 motorComponentsPos. Component Pos. Component Pos. Component2 Discharge chamber 56 Base plate 153,154 Ball bearing4 Chamber 62 Stop ring 155 Bearing cover plate4a Chamber with bearing 64 Spacing pipe 156 Fan6 Suction chamber 64a Spacing pipe 158 Corrugated spring25 Plug 66 Clamp 159 O-ring28 Screw 67 Lock nut 164 Terminal box cover28g Hexagon head screw 79 Diverting disc 164a Terminal box37 Gasket 105 Shaft seal 172 Shaft47a Bearing 150a Stator housing49 Impeller 151 Fan cover7
Construction<strong>CH</strong>, <strong>CH</strong>N<strong>CH</strong> 8-50Sectional drawing158 159 150a 154 172 164 164a2105 37a 49 49a 37411a156151256545625153 155 41a 79 28h 28g 56 45 65 26 64 66 674TM03 2036 3505Fig. 4 <strong>CH</strong> 8-50 with ML 80 motorComponentsPos. Component Pos. Component Pos. Component1a <strong>Pump</strong> housing 45 Neck ring 151 Fan cover4 Chamber 49 Impeller 153,154 Ball bearing6 Suction chamber 49a Impeller 155 Bearing cover plate25 Plug 56 Base plate 156 Fan26 Staybolt 64 Spacing pipe 158 Corrugated spring28 Screw 65 Retainer for neck ring 159 O-ring28g Hexagon head screw 66 Clamp 164 Terminal box cover28h Serrated lock washer 67 Lock nut 164a Terminal box37 Gasket 79 Diverting disc 172 Shaft37a Gasket 105 Shaft seal41 Bearing plate 150a Stator housing8
Construction<strong>CH</strong>, <strong>CH</strong>N<strong>CH</strong> 12-50Sectional drawing156 157a 158 156a 154 159 172 164 153 2105 37a 49 49a 37411a151256545625181 150a 155 79 41a 28h 28g 56 45 65 26 64 66 674TM03 2037 3505Fig. 5 <strong>CH</strong> 12-50 with ML 90 motorComponentsPos. Component Pos. Component Pos. Component1a <strong>Pump</strong> housing 45 Neck ring 151 Fan cover4 Chamber 49 Impeller 153,154 Ball bearing6 Suction chamber 49a Impeller 155 Bearing cover plate25 Plug 56 Base plate 156 Fan26 Staybolt 64 Spacing pipe 156a Non-drive end shield28 Screw 65 Retainer for neck ring 157a Lip seal28g Hexagon head screw 66 Clamp 158 Corrugated spring28h Serrated lock washer 67 Lock nut 159 O-ring37 Gasket 79 Diverting disc 164 Terminal box cover37a Gasket 105 Shaft seal 172 Shaft41 Bearing plate 150a Stator housing 181 Staybolt9
Construction<strong>CH</strong>, <strong>CH</strong>NMaterial specificationPos. Description Material105 Shaft sealMotor parts<strong>CH</strong><strong>CH</strong>NDIN W.-Nr. ISO/AISI/ASTM DIN W.-Nr. ISO/AISI/ASTM62 Stop ring Stainless steel 1.4401 AISI 316 1.4401 AISI 316150150aStator housing completewith terminal boxStator housing151 Fan coverSilumin/composite (ML 71 and ML 80)Silumin (ML 90)Silumin/composite (ML 71 and ML 80)Silumin (ML 90)Steel (ML 71 and ML 80)Composite PBT/PC (ML 90)1.0330.3 1.0330.3153, 154 Ball bearing155 Bearing cover plate Stainless steel 1.4301 AISI 304 1.4301 AISI 304156 Fan Composite PA 66 30% GF156a Non-drive end shield (ML 90) Silumin157a Lip seal (ML 90)158 Corrugated spring159 O-ring NBR rubber159a Gasket164 Terminal box cover164a Terminal box172Shaft: pumpShaft: motorStainless steelSteel172a Shaft, complete Stainless steel/steel1.40571.05311.4057/1.0531AISI 431AISI 4311.40571.05311.40571.0531AISI 431AISI 431181 Staybolt (only ML 90) Steel<strong>Pump</strong> parts1a <strong>Pump</strong> housing Cast iron/stainless steel 0.6020 ASTM 30 B 1.4308 CF 8 1)2 Discharge chamber Cast iron/stainless steel 0.6020 ASTM 30 B 1.4308 CF 8 1)4 Chamber Stainless steel 1.4301 AISI 304 1.4301 AISI 3044a Chamber with bearing (<strong>CH</strong> 4)Stainless steel + aluminiumoxide Al 2 O 3 (ceramic)1.4301 AISI 304 1.4301 AISI 3046 Suction chamber, compl. Cast iron/stainless steel 0.6020 ASTM 30 B 1.4308 CF 8 1)25 Plug Free-cutting steel/stainless steel 1.0718 1.4301 AISI 30426 Staybolt Galvanized steel28 Screw28g Hexagon head screw28h Serrated lock washer37, 37a GasketSynthetic-fibre-reinforcedrubber (NBR)41 Bearing plate Cast iron/stainless steel 0.6020 ASTM 30 B 1.4308 CF 8 1)45 Neck ring PTFE47a Bearing (shaft) (<strong>CH</strong> 4-60)Chromium-nickel-molybdenumcementedtungsten carbide49Impeller<strong>CH</strong> 8 and 12: ø130<strong>CH</strong>, <strong>CH</strong>N 4: ø95Stainless steel 1.4301 AISI 304 1.4301 AISI 304<strong>CH</strong>, <strong>CH</strong>N 2: ø9049a Impeller <strong>CH</strong> 8 and 12: ø98 Stainless steel 1.4301 AISI 304 1.4301 AISI 30456 Base plate Iron/stainless steel 1.0330.3 1.4301 AISI 30464, 64a Spacing pipe Stainless steel 1.4401 AISI 316 1.4401 AISI 31665 Retainer for neck ring Stainless steel 1.4301 AISI 304 1.4301 AISI 30466 Clamp Stainless steel 1.4401 AISI 316 1.4401 AISI 31667 Lock nut Stainless steel 1.4301 AISI 304 1.4301 AISI 30479 Diverting disc NR rubber1) CF 8 is cast equivalent of AISI 304 stainless steel10
Curve conditions<strong>CH</strong>, <strong>CH</strong>NCurve conditionsThe guidelines below apply to the curves on the followingpages:• Tolerances according to ISO 9906, Annex A.• The bold curves state the recommended performancerange.• The thin curves are only intended as a guide.• The curves must not be used as guarantee curves.• All curves are based on measurements at:• 1 x 220 V, 60 Hz• 3 x 380 V, 60 Hz.• When the motor is running at the lowest or highestrated voltage, the pump performance will usuallyvary by ±1.5 - 3 feet at a given duty point.• Specific minimum performance requirements necessitateindividual measurements.• The measurements have been made with airlesswater at a temperature of 70°F (~20°C).The curves apply to a kinematic viscosity ofυ = 1 mm²/s (1 cSt)12
Curve conditions<strong>CH</strong>, <strong>CH</strong>NHow to read the curve chartsCurvesQH:P 2 :Eff:<strong>Pump</strong> performance at actual speed.<strong>Pump</strong> input, i.e. pump without motor.Total efficiency, i.e. pump with motor, is shownin the curve charts as Eff.NPSH: Average values for all variants shown in chart 1.When sizing, make a safety allowance of atleast 2 feet.Total pumpheadH = H totalH[m]80706050H[ft]280260240220200180160<strong>CH</strong>(N) 2-60<strong>CH</strong>(N) 2-50<strong>CH</strong>(N) 2-40<strong>CH</strong> 2, <strong>CH</strong>N 260 HzISO 9906 Annex A<strong>Pump</strong> typeQH curve for the individualpump.The bold curve indicatesthe recommendedperformancerange.40140120<strong>CH</strong>(N) 2-3030100802060104020000 2 4 6 8 10 12 14 16 Q [US GPM]P2[kW]1.00.50.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 Q [m³/h]P2[hp]1.5-601.0-50-40-300.5The power curve indicatespump inputpower [P 2 ]0.0H[m]128400.00 2 4 6 8 10 12 14 16 Q [US GPM]H[ft]Eff40302010NPSH000 2 4 6 8 10 12 14 16 Q [US GPM]Eff[%]40302010The NPSH curve isan average curve forall variants shown.When sizing thepumps, add a safetymargin of at least 2feet.TM03 3102 030613
Performance curves<strong>CH</strong>, <strong>CH</strong>N<strong>CH</strong> 2, <strong>CH</strong>N 2H[m]80H[ft]280260<strong>CH</strong>(N) 2-60<strong>CH</strong> 2, <strong>CH</strong>N 260 HzISO 9906 Annex A70240220<strong>CH</strong>(N) 2-5060200180<strong>CH</strong>(N) 2-405016040140120<strong>CH</strong>(N) 2-3030100802060104020000 2 4 6 8 10 12 14 16 Q [US GPM]P2[kW]1.00.50.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 Q [m³/h]P2[hp]1.5-601.0-50-40-300.50.0H[m]120.0H[ft]400 2 4 6 8 10 12 14 16 Q [US GPM]EffEff[%]408403020100NPSH0 2 4 6 8 10 12 14 16 Q [US GPM]3020100TM03 3103 030614
Performance curves<strong>CH</strong>, <strong>CH</strong>N<strong>CH</strong> 4, <strong>CH</strong>N 4H[m]70H[ft]240220<strong>CH</strong>(N) 4-50<strong>CH</strong> 4, <strong>CH</strong>N 460 HzISO 9906 Annex A6020050180160<strong>CH</strong>(N) 4-4040140120<strong>CH</strong>(N) 4-303010080<strong>CH</strong>(N) 4-202060104020000 5 10 15 20 25 30 35 Q [US GPM]P2[kW]P2[hp]2.00 1 2 3 4 5 6 7 8 9 Q [m³/h]-501.00.51.51.00.5-40-30-200.00.0H[m]6H[ft]200 5 10 15 20 25 30 35 Q [US GPM]EffEff[%]40420151050NPSH0 5 10 15 20 25 30 35 Q [US GPM]3020100TM03 3103 030615
Performance curves<strong>CH</strong>, <strong>CH</strong>N<strong>CH</strong> 8H[m]H[ft]<strong>CH</strong> 8180<strong>CH</strong> 8-4060 HzISO 9906 Annex A50160140<strong>CH</strong> 8-304012030100<strong>CH</strong> 8-25<strong>CH</strong> 8-20802060401020000 5 10 15 20 25 30 35 40 45 50 Q [US GPM]P2[kW]1.00.5P2[hp]2.01.51.00.50 2 4 6 8 10 12 Q [m³/h]-40-30-25-200.00.0H[m]H[ft]0 5 10 15 20 25 30 35 40 45 50 Q [US GPM]Eff[%]32128EffNPSH604010400 5 10 15 20 25 30 35 40 45 50 Q [US GPM]200TM03 3104 050616
Performance curves<strong>CH</strong>, <strong>CH</strong>N<strong>CH</strong> 12p[kPa]450400H[ft]160150140130<strong>CH</strong> 12-30<strong>CH</strong> 1260 HzISO 9906 Annex A350120110300100<strong>CH</strong> 12-209025080200701506050<strong>CH</strong> 12-104010030502010000 5 10 15 20 25 30 35 40 45 50 55 60 Q [US GPM]P2[kW]21P2[hp]3210 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 Q [m³/h]-30-20-100H[m]80H[ft]240 5 10 15 20 25 30 35 40 45 50 55 60 Q [US GPM]EffEff[%]60416NPSH400800 5 10 15 20 25 30 35 40 45 50 55 60 Q [US GPM]200TM03 3105 030617
Electrical data<strong>CH</strong>, <strong>CH</strong>N<strong>CH</strong>, <strong>CH</strong>NI 1/1 indicates maximum rated current within the voltage range.I st indicates maximum locked rotor current within the voltage range.<strong>CH</strong>, <strong>CH</strong>N 2Voltage[V]Frequency[Hz]<strong>Pump</strong> type Motor type SFI 1/1[A]I st[A]Motor P 2[HP]C[µF/V]3 x 208-230/440-480 601 x 115/230 603 x 575(Canada)60<strong>CH</strong>, <strong>CH</strong>N 2-30<strong>CH</strong>, <strong>CH</strong>N 2-40<strong>CH</strong>, <strong>CH</strong>N 2-50<strong>CH</strong>, <strong>CH</strong>N 2-60<strong>CH</strong>, <strong>CH</strong>N 2-30<strong>CH</strong>, <strong>CH</strong>N 2-40<strong>CH</strong>, <strong>CH</strong>N 2-50<strong>CH</strong>, <strong>CH</strong>N 2-60<strong>CH</strong>, <strong>CH</strong>N 2-30<strong>CH</strong>, <strong>CH</strong>N 2-40<strong>CH</strong>, <strong>CH</strong>N 2-50<strong>CH</strong>, <strong>CH</strong>N 2-60ML 71ML 71ML 71ML 80ML 71ML 80ML 80ML 80ML 71ML 71ML 71ML 801.701.701.701.601.601.501.501.501.701.701.701.602.90/1.454.0/2.104.0/2.105.20/2.609.00/4.5011.5/5.7011.5/5.7015.0/7.501.161.681.682.0815.720.720.732.024.934.034.048.015.78.08.011.20.500.750.751.000.500.750.751.000.500.750.751.0040/40040/40040/40050/400<strong>CH</strong>, <strong>CH</strong>N 4Voltage[V]Frequency[Hz]<strong>Pump</strong> type Motor type SFI 1/1[A]I st[A]Motor P 2[HP]C[µF/V]3 x 208-230/440-480 601 x 115/230 603 x 575(Canada)60<strong>CH</strong>, <strong>CH</strong>N 4-20<strong>CH</strong>, <strong>CH</strong>N 4-30<strong>CH</strong>, <strong>CH</strong>N 4-40<strong>CH</strong>, <strong>CH</strong>N 4-50<strong>CH</strong>, <strong>CH</strong>N 4-20<strong>CH</strong>, <strong>CH</strong>N 4-30<strong>CH</strong>, <strong>CH</strong>N 4-40<strong>CH</strong>, <strong>CH</strong>N 4-50<strong>CH</strong>, <strong>CH</strong>N 4-20<strong>CH</strong>, <strong>CH</strong>N 4-30<strong>CH</strong>, <strong>CH</strong>N 4-40<strong>CH</strong>, <strong>CH</strong>N 4-50ML 71ML 71ML 80ML 80ML 71ML 71ML 80ML 90ML 71ML 71ML 80ML 801.701.701.601.471.601.501.501.401.701.701.601.472.90/1.454.0/2.105.20/2.606.90/3.509.00/4.5011.5/5.7015.0/7.5021.5/10.71.161.682.082.8015.720.733.942.024.934.033.933.95.18.011.215.30.500.751.001.500.500.751.001.500.500.751.001.5040/40040/40050/40060/400<strong>CH</strong> 8Voltage[V]Frequency[Hz]<strong>Pump</strong> type Motor type SFI 1/1[A]I st[A]Motor P 2[HP]C[µF/V]3 x 208-230/440-480 601 x 115/230 603 x 575(Canada)60<strong>CH</strong> 8-20<strong>CH</strong> 8-25<strong>CH</strong> 8-30<strong>CH</strong> 8-40<strong>CH</strong> 8-20<strong>CH</strong> 8-25<strong>CH</strong> 8-30<strong>CH</strong> 8-40<strong>CH</strong> 8-20<strong>CH</strong> 8-25<strong>CH</strong> 8-30<strong>CH</strong> 8-40ML 71ML 80ML 80ML 80ML 80ML 80ML 90ML 90ML 71ML 80ML 80ML 801.701.601.471.471.501.501.401.401.701.601.471.474.0/2.105.20/2.606.90/3.506.90/3.5011.5/5.7015.0/7.5021.5/10.721.4/10.61.682.082.802.8015.620.432.032.034.048.083.032.08.011.215.315.30.751.001.501.500.751.001.501.500.501.001.501.5040/40050/40060/40060/40018
Electrical data<strong>CH</strong>, <strong>CH</strong>N<strong>CH</strong> 12Voltage[V]Frequency[Hz]<strong>Pump</strong> type Motor type SFI 1/1[A]I st[A]Motor P 2[HP]C[µF/V]3 x 208-230/440-480 601 x 115/230 603 x 575 (Canada) 60<strong>CH</strong> 12-10<strong>CH</strong> 12-20<strong>CH</strong> 12-30<strong>CH</strong> 12-10<strong>CH</strong> 12-20<strong>CH</strong> 12-10<strong>CH</strong> 12-20<strong>CH</strong> 12-30ML 71ML 80ML 90ML 71ML 90ML 71ML 80ML 901.701.471.501.601.401.701.471.502.90/1.456.90/3.509.10/4.759.00/4.5021.5/10.71.162.803.8015.732.046.024.983.05.115.328.00.501.502.000.501.500.501.502.0040/40060/40019
Dimensions and weights<strong>CH</strong>, <strong>CH</strong>NDimensions<strong>CH</strong>, <strong>CH</strong>N 2 and 4 with ML 71/80 motorL4NPT Rp 1B1<strong>CH</strong>, <strong>CH</strong> <strong>CH</strong>N 2 Rp 2 1 NPT 1Rp 3/8<strong>CH</strong>, <strong>CH</strong>N 4 Rp 41 NPT + Rp 1 ¼1 1/4B2Rp 3/8H0.33” ø8.53.54 906.10 155L2L35.43 1386.30 160L14.25 1085.12 130TM00 1491 4900Fig. 6 Dimensional sketches <strong>CH</strong>, <strong>CH</strong>N 2 and 4 with ML 71/80 motor<strong>CH</strong>, <strong>CH</strong>N 2Voltage[V]Frequency[Hz]<strong>Pump</strong> typeMotortypeL1[Inch]L2[Inch]L3[Inch]L4[Inch]B1[Inch]B2[Inch]H[Inch]3 x 208-230/440-480 601 x 115/230 603 x 575(Canada)60<strong>CH</strong>, <strong>CH</strong>N 2-30<strong>CH</strong>, <strong>CH</strong>N 2-40<strong>CH</strong>, <strong>CH</strong>N 2-50<strong>CH</strong>, <strong>CH</strong>N 2-60<strong>CH</strong>, <strong>CH</strong>N 2-30<strong>CH</strong>, <strong>CH</strong>N 2-40<strong>CH</strong>, <strong>CH</strong>N 2-50<strong>CH</strong>, <strong>CH</strong>N 2-60<strong>CH</strong>, <strong>CH</strong>N 2-30<strong>CH</strong>, <strong>CH</strong>N 2-40<strong>CH</strong>, <strong>CH</strong>N 2-50<strong>CH</strong>, <strong>CH</strong>N 2-60ML 71ML 71ML 71ML 80ML 71ML 80ML 80ML 90ML 71ML 71ML 71ML 8012.6815.0415.7516.4212.6815.0015.7116.3812.6815.0415.7516.423.624.335.045.753.624.335.045.753.624.335.045.753.193.904.615.323.193.904.615.323.193.904.615.324.615.326.066.774.615.326.066.774.615.326.066.775.755.755.755.575.755.575.575.575.755.755.755.574.334.334.334.535.715.715.715.714.334.334.334.537.877.877.877.878.908.908.908.908.868.868.868.86<strong>CH</strong>, <strong>CH</strong>N 4Voltage[V]Frequency[Hz]<strong>Pump</strong> typeMotortypeL1[Inch]L2[Inch]L3[Inch]L4[Inch]B1[Inch]B2[Inch]H[Inch]3 x 208-230/440-480 601 x 115/230 603 x 575(Canada)60<strong>CH</strong>, <strong>CH</strong>N 4-20<strong>CH</strong>, <strong>CH</strong>N 4-30<strong>CH</strong>, <strong>CH</strong>N 4-40<strong>CH</strong>, <strong>CH</strong>N 4-50<strong>CH</strong>, <strong>CH</strong>N 4-20<strong>CH</strong>, <strong>CH</strong>N 4-30<strong>CH</strong>, <strong>CH</strong>N 4-40<strong>CH</strong>, <strong>CH</strong>N 4-50<strong>CH</strong>, <strong>CH</strong>N 4-20<strong>CH</strong>, <strong>CH</strong>N 4-30<strong>CH</strong>, <strong>CH</strong>N 4-40<strong>CH</strong>, <strong>CH</strong>N 4-50ML 71ML 71ML 80ML 80ML 71ML 71ML 80ML 80ML 71ML 71ML 71ML 8012.3615.0416.1817.2812.3613.4716.1817.2812.3613.4714.5717.283.274.335.396.463.273.274.335.393.273.274.335.392.843.904.966.022.842.843.904.962.842.843.904.964.255.326.427.484.254.255.326.424.254.255.326.425.755.755.575.575.755.755.575.575.755.755.755.574.334.334.534.534.335.715.715.714.334.334.334.537.877.877.877.878.908.908.908.907.877.877.877.8720
Dimensions and weights<strong>CH</strong>, <strong>CH</strong>N<strong>CH</strong> 8 and 12 with ML 71/80 motorNPT Rp 1 1/2 ½L4Rp 1/2<strong>CH</strong> 8 NPT 1 1/4<strong>CH</strong> 8 Rp 1/4<strong>CH</strong> 12 12 NPT Rp 1 ½1/2B2B19.45 2400.33” ø8.54.33 1107.40 188Rp 1/2L2L35.43 1386.30 160L14.25 108130 5.12TM00 1189 3505<strong>CH</strong> 8Fig. 7 Dimensional sketches <strong>CH</strong>, <strong>CH</strong>N 8and 12 with ML 71/80 motorsVoltage[V]Frequency[Hz]<strong>Pump</strong> typeMotortypeL1[Inch]L2[Inch]L3[Inch]L4[Inch]B1[Inch]B2[Inch]H[Inch]3 x 208-230/440-480 601 x 115/230 603 x 575(Canada)60<strong>CH</strong> 8-20<strong>CH</strong> 8-25<strong>CH</strong> 8-30<strong>CH</strong> 8-40<strong>CH</strong> 8-20<strong>CH</strong> 8-25<strong>CH</strong> 8-20<strong>CH</strong> 8-25<strong>CH</strong> 8-30<strong>CH</strong> 8-40ML 71ML 80ML 80ML 80ML 80ML 80ML 71ML 80ML 80ML 8012.2415.0015.0015.0013.8215.0012.2415.0015.0015.002.723.903.903.902.723.902.723.903.903.902.283.473.473.472.283.472.283.473.473.473.034.214.214.213.034.213.034.214.214.216.976.976.976.976.976.976.976.976.976.974.294.294.294.294.884.884.294.294.294.297.877.877.877.878.908.909.459.459.459.45<strong>CH</strong> 12Voltage[V]Frequency[Hz]3 x 208-230/440-480 60<strong>Pump</strong> type<strong>CH</strong> 12-10<strong>CH</strong> 12-20MotortypeML 71ML 80L1[Inch]12.2413.82L2[Inch]L3[Inch]L4[Inch]B1[Inch]B2[Inch]1 x 115/230 60 <strong>CH</strong> 12-10 ML 71 12.24 2.72 2.28 3.03 6.97 8.903 x 575(Canada)60<strong>CH</strong> 12-10<strong>CH</strong> 12-20ML 71ML 8012.2413.822.722.722.722.722.282.282.282.283.033.033.033.036.976.976.976.974.294.294.294.29H[Inch]9.459.459.459.4521
Dimensions and weights<strong>CH</strong>, <strong>CH</strong>N<strong>CH</strong> 8 and 12 with ML 90 motorL4Rp 1/2<strong>CH</strong> 8 NPT 1 1/4<strong>CH</strong> Rp 1 1/4<strong>CH</strong> 12 NPT Rp 111/2½B1NPT Rp 11/2½Rp 1/2L2L35.43 1386.30 160L19.45 2400.33” ø8.54.25 1085.12 1304.33 1107.40 188TM00 1490 3505<strong>CH</strong> 8Fig. 8 Dimensional sketches <strong>CH</strong>, <strong>CH</strong>N 8 and 12 with ML 90 motorVoltage[V]Frequency[Hz]<strong>Pump</strong> typeMotortypeL1[Inch]L2[Inch]L3[Inch]L4[Inch]B1[Inch]B2[Inch]H[Inch]1 x 115/230 60<strong>CH</strong> 8-30<strong>CH</strong> 8-40ML 90ML 9016.8916.893.903.903.473.474.214.217.527.525.205.208.668.66<strong>CH</strong> 12Voltage[V]Frequency[Hz]<strong>Pump</strong> typeMotortypeL1[Inch]3 x 208-230/440-480 60 <strong>CH</strong> 12-30 ML 90 16.89 3.90 3.47 4.21 7.32 4.88 8.661 x 115/230 60 <strong>CH</strong> 12-20 ML 90 15.71 2.72 2.28 3.03 7.52 5.20 8.663 x 575(Canada)60 <strong>CH</strong> 12-30 ML 90 16.89 3.90 3.47 4.21 7.32 4.88 8.66L2[Inch]L3[Inch]L4[Inch]B1[Inch]B2[Inch]H[Inch]22
Dimensions and weights<strong>CH</strong>, <strong>CH</strong>NWeights<strong>CH</strong>, <strong>CH</strong>N, single-phase<strong>CH</strong>, <strong>CH</strong>N, three-phase60 Hz60 Hz<strong>Pump</strong> typeNet weight[lbs]Gross weight[lbs]Shippingvolume[ft³]<strong>Pump</strong> typeNet weight[lbs]Gross weight[lbs]Shippingvolume[ft³]<strong>CH</strong>, <strong>CH</strong>N 2-20<strong>CH</strong>, <strong>CH</strong>N 2-30<strong>CH</strong>, <strong>CH</strong>N 2-40<strong>CH</strong>, <strong>CH</strong>N 2-50<strong>CH</strong>, <strong>CH</strong>N 2-60<strong>CH</strong>, <strong>CH</strong>N 4-20<strong>CH</strong>, <strong>CH</strong>N 4-30<strong>CH</strong>, <strong>CH</strong>N 4-40<strong>CH</strong>, <strong>CH</strong>N 4-50<strong>CH</strong>, <strong>CH</strong>N 4-60<strong>CH</strong> 8-20<strong>CH</strong> 8-25<strong>CH</strong> 8-30<strong>CH</strong> 8-40<strong>CH</strong> 8-50<strong>CH</strong> 8-60<strong>CH</strong> 12-10<strong>CH</strong> 12-20<strong>CH</strong> 12-30<strong>CH</strong> 12-40<strong>CH</strong> 12-50<strong>CH</strong> 12-602828292932263031--40425757--3360----3030303136283134--44466262--3764----0.660.660.830.830.830.660.830.83--1.491.491.491.49--1.491.49----<strong>CH</strong>, <strong>CH</strong>N 2-20<strong>CH</strong>, <strong>CH</strong>N 2-30<strong>CH</strong>, <strong>CH</strong>N 2-40<strong>CH</strong>, <strong>CH</strong>N 2-50<strong>CH</strong>, <strong>CH</strong>N 2-60<strong>CH</strong>, <strong>CH</strong>N 4-20<strong>CH</strong>, <strong>CH</strong>N 4-30<strong>CH</strong>, <strong>CH</strong>N 4-40<strong>CH</strong>, <strong>CH</strong>N 4-50<strong>CH</strong>, <strong>CH</strong>N 4-60<strong>CH</strong> 8-20<strong>CH</strong> 8-25<strong>CH</strong> 8-30<strong>CH</strong> 8-40<strong>CH</strong> 8-50<strong>CH</strong> 8-60<strong>CH</strong> 12-10<strong>CH</strong> 12-20<strong>CH</strong> 12-30<strong>CH</strong> 12-40<strong>CH</strong> 12-50<strong>CH</strong> 12-602424252526242730--35374142--35415864--2626262829262932--41444848--41486470--0.660.660.660.830.830.660.830.83--1.491.491.491.49--1.491.491.491.49--23
Further product documentation<strong>CH</strong>, <strong>CH</strong>NWebCAPSWebCAPS is a Web-based Computer Aided ProductSelection program available on www.grundfos.com.WebCAPS contains detailed information on more than185,000 Grundfos products in more than 22 languages.In WebCAPS, all information is divided into 6 sections:• Catalog• Literature• Service• Sizing• Replacement• CAD drawings.CatalogThis section is based on fields of application and pump types, andcontains• technical data• curves (QH, Eff, P1, P2, etc) which can be adapted to the densityand viscosity of the pumped liquid and show the number ofpumps in operation• product photos• dimensional drawings• wiring diagrams• quotation texts, etc.LiteratureIn this section you can access all the latest documents of a givenpump, such as• product guides• installation and operating instructions• service documentation, such as Service kit catalog andService kit instructions• quick guides• product brochures, etc.ServiceThis section contains an easy-to-use interactive service catalog.Here you can find and identify service parts of both existing and discontinuedGrundfos pumps.Furthermore, this section contains service videos showing you howto replace service parts.24
0 1Further product documentation<strong>CH</strong>, <strong>CH</strong>NSizingThis section is based on different fields of application and installationexamples, and gives easy step-by-step instructions in how to• select the most suitable and efficient pump for your installation• carry out advanced calculations based on energy consumption,payback periods, load profiles, life cycle costs, etc.• analyse your selected pump via the built-in life cycle cost tool• determine the flow velocity in wastewater applications, etc.ReplacementIn this section you find a guide to selecting and comparing replacementdata of an installed pump in order to replace the pump with amore efficient Grundfos pump.The section contains replacement data of a wide range of pumpsproduced by other manufacturers than Grundfos.Based on an easy step-by-step guide, you can compare Grundfospumps with the one you have installed on your site. When you havespecified the installed pump, the guide will suggest a number ofGrundfos pumps which can improve both comfort and efficiency.CAD drawingsIn this section it is possible to download 2-dimensional (2D) and 3-dimensional (3D) CAD drawings of most Grundfos pumps.These formats are available in WebCAPS:2-dimensional drawings:• .dxf, wireframe drawings• .dwg, wireframe drawings.3-dimensional drawings:• .dwg, wireframe drawings (without surfaces)• .stp, solid drawings (with surfaces)• .eprt, E-drawings.WinCAPSFig. 9 WinCAPS CD-ROMWinCAPS is a Windows-based Computer AidedProduct Selection program containing detailed informationon more than 185,000 Grundfos products in morethan 22 languages.The program contains the same features and functionsas WebCAPS, but is an ideal solution if no Internetconnection is available.WinCAPS is available on CD-ROM and updated once ayear.25
Being responsible is our foundationThinking ahead makes it possibleInnovation is the essenceL-<strong>CH</strong>-PG-001 0506USSubject to alterations.GRUNDFOS <strong>Pump</strong>s Corporation17100 West 118th TerraceOlathe, Kansas 66061Phone: +1-913-227-3400Telefax: +1-913-227-3500www.grundfos.comGRUNDFOS Canada Inc.2941 Brighton RoadOakville, Ontario L6H 6C9 CanadaPhone: +1-905 829 9533Telefax: +1-905 829 9512Bombas GRUNDFOS de Mexico S.A. de C.V.Boulevard TLC No. 15Parque Industrial Stiva AeropuertoApodaca, N.L. Mexico 66600Phone: +52-81-8144 4000Telefax: +52-81-8144 4010
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