GRUNDFOS DATA BOOKLET

CRK 4-120/12 A-W-A-AUUV 3x230D/400Y V Grundfos pump 41907112

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Printed from Grundfos Product Centre [2018.06.003]

Position Qty. Description1 CRK 4-120/12 A-W-A-AUUV

Note! Product picture may differ from actual product

Product No.: On requestMultistage, immersible, self-priming, centrifugalpump for vertical installation in tanks etc.

The pump has the following characteristics:- Installation length according to DIN 5440.- Impellers, intermediate chambers and spline

shaft are made of Stainless steel.- Mechanical shaft seal according to EN 12756.- Power transmission via cast iron

split coupling.

The motor is a 3-phase AC motor.Immersion depth: 439 mm

Liquid:Pumped liquid: WaterLiquid temperature range: -10 .. 90 °CLiquid temperature during operation: 20 °CDensity: 998.2 kg/m³

Technical:Rated flow: 66.7 l/minRated head: 94.5 mPrimary shaft seal: AUUVCurve tolerance: ISO9906:2012 3B

Materials:Pump head: Cast iron

EN-JL1030ASTM A48-30 B

Impeller: Stainless steelDIN W.-Nr. 1.4301AISI 304

Installation:Maximum ambient temperature: 60 °CPipe connection: G 1 1/4Flange size for motor: FT115

Electrical data:Motor type: 90LCIE Efficiency class: IE2Rated power - P2: 2.2 kWPower (P2) required by pump: 2.2 kW

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Printed from Grundfos Product Centre [2018.06.003]

Position Qty. DescriptionMains frequency: 50 HzRated voltage: 3 x 220-240D/380-415Y VRated current: 7.70/4.45 AStarting current: 850-950 %Cos phi - power factor: 0.89-0.87Rated speed: 2890-2910 rpmMotor efficiency at full load: 83.2 %Motor efficiency at 3/4 load: 86 %Motor efficiency at 1/2 load: 85 %Number of poles: 2Enclosure class (IEC 34-5): 55 Dust/JettingInsulation class (IEC 85): F

Others:Minimum efficiency index, MEI ≥: 0.70Net weight: 30.3 kg

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Printed from Grundfos Product Centre [2018.06.003]

On request CRK 4-120/12 A-W-A-AUUV 50 HzH

[m]

0

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120

Q [l/min]0 10 20 30 40 50 60 70 80 90 100 110 120 130

eta[%]

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100

CRK 4-120/12, 3*400 V, 50Hz

P[kW]

0.0

0.5

1.0

1.5

2.0

2.5

3.0

NPSH[m]

0

1

2

3

4

5

6

P1

P2

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Printed from Grundfos Product Centre [2018.06.003]

H[m]

0

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120

Q [l/min]0 20 40 60 80 100

eta[%]

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CRK 4-120/12, 3*400 V, 50Hz

P[kW]

0.0

0.5

1.0

1.5

2.0

2.5

NPSH[m]

0

1

2

3

4

5P1

P2

178

424

140

439

823 103

140

160

180

100

110

4 x 7.5G 1 1/4

32

L1 L2 L3

L3L2L1

LOW VOLTAGEDIRECTION OF ROTATION

HIGH VOLTAGEDIRECTION OF ROTATION

Description ValueGeneral information:Product name: CRK 4-120/12 A-W-A-AUUVProduct No: On requestEAN number: On requestTechnical:Rated flow: 66.7 l/minRated head: 94.5 mStages: 12Impellers: 12Primary shaft seal: AUUVCurve tolerance: ISO9906:2012 3BPump version: AModel: BMaterials:Pump head: Cast iron

EN-JL1030ASTM A48-30 B

Impeller: Stainless steelDIN W.-Nr. 1.4301AISI 304

Material code: AInstallation:Maximum ambient temperature: 60 °CPipe connection: G 1 1/4Flange size for motor: FT115Connect code: WLiquid:Pumped liquid: WaterLiquid temperature range: -10 .. 90 °C

Liquid temperature during operation: 20 °C

Density: 998.2 kg/m³Electrical data:Motor type: 90LCIE Efficiency class: IE2Rated power - P2: 2.2 kWPower (P2) required by pump: 2.2 kWMains frequency: 50 HzRated voltage: 3 x 220-240D/380-415Y VRated current: 7.70/4.45 AStarting current: 850-950 %Cos phi - power factor: 0.89-0.87Rated speed: 2890-2910 rpmMotor efficiency at full load: 83.2 %Motor efficiency at 3/4 load: 86 %Motor efficiency at 1/2 load: 85 %Number of poles: 2Enclosure class (IEC 34-5): 55 Dust/JettingInsulation class (IEC 85): FMotor protec: NONEMotor No: 85D05908Others:Minimum efficiency index, MEI ≥: 0.70Net weight: 30.3 kg

178

424

140

439

823103

140160

180

100

110

4 x7.5G 1 1/4

32

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Printed from Grundfos Product Centre [2018.06.003]

On request CRK 4-120/12 A-W-A-AUUV 50 Hzcos phi

eta

0.0

0.2

0.4

0.6

0.8

P2 [kW]0 0.2 0.4 0.6 0.8 1.0 1.2 1.4 1.6 1.8 2.0 2.2 2.4 2.6 2.8 3.0

I[A]

0

2

4

6

8

CRK4-120/12 + 90LC 2.2 kW 3*400 V, 50 Hz

eta

cos phi

I

n[rpm]

2000

2200

2400

2600

2800

P1[kW]

0.0

1.0

2.0

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4.0

n

P1

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Printed from Grundfos Product Centre [2018.06.003]

On request CRK 4-120/12 A-W-A-AUUV 50 Hz

Note! All units are in [mm] unless others are stated.Disclaimer: This simplified dimensional drawing does not show all details.

178

424

140

439

823 103

140

160

180

100

110

4 x 7.5G 1 1/4

32

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Printed from Grundfos Product Centre [2018.06.003]

Exploded view

301a

219

92

7

7a

77

301a

92

11

9

51

100

49

105

45

215a

215

18

217215a

534a534

531531a

28

17

251d

251a

6

11b

66a

67

530530a

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Printed from Grundfos Product Centre [2018.06.003]

Sectional drawing (TM058200 for TPE2,TPE3)

4

2 13

5

TM058200

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Printed from Grundfos Product Centre [2018.06.003]

Exploded view ( TM057026 for MGE model H/I )

251d

251b

290

287277a

286

277

273a

273

268268a289a289

288b288288a

251a

252b

156c

159d

156b

156d188

275a

153

154

158

178

185

192

191

159e

156c 156

151152

266

187

291

293

252a

172

150

287a

502

273b

157

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Printed from Grundfos Product Centre [2018.06.003]

Parts list CRK 4-120/12, Product No. On requestValid from 28.9.2012 (1239)

Pos Description Annotation Données de classification Référence Quantité Unité- Pump w/o motor 1 pcs+ 2 Pump head 1

2k Adapter flange 13 Top intermediate chamber 1

- 4 Intermediate chamber cpl. 9Chamber w/o guide vanes 1

45 Neck ring 165 Retainer for seal ring 1

- 4a Intermediate chamber cpl. 2Chamber w/o guide vanes 1

45 Neck ring 165 Retainer for seal ring 1

- 5a Chamber, bottom 13a Intermediate chamber 1

+ 7 Coupling guard 27.a Combi Slot Torx screw 49 Hex socket head cap screw Designation: DIN 912 4

Length (mm): 25Thread: M8

10 Shaft pin Diameter: 5 1Length (mm): 26

10a Coupling half 226 Strap cpl. 428 Hex head screw Length (mm): 20 4

Thread: M836 Lock nut 437 O-ring 137.a O-ring 147a Bearing ring, rotating Internal diameter: 13,10 2

Outer diameter: 15,92Length (mm): 11,00Material type: TUNGSTEN CARBIDE

49 Impeller cpl. 12- 51 Pump shaft cpl. Diameter: 12 1

Length (mm): 463Pump shaft 1

62 Retaining ring 161 Spacer for shaft seal 164a Spacing pipe Internal diameter: 13 2

Outer diameter: 15Length (mm): 15

66 Wedge lock washer 166a Washer Internal diameter: 10,5 4

Outer diameter: 21Thickness: 2,00

67 Lock nut Designation: A2 DIN985 1Thread: M8

69 Spacing pipe Length (mm): 26.0 969a Spacing pipe Internal diameter: 12,7 1

Outer diameter: 15Length (mm): 45MM

76 Nameplate 176a Rivet 284 Strainer 184.b Combi Slot Torx screw 184c Disc spring 1105 Shaft seal Material type: BUBV 1

- 121 Retainer for strainer cpl. 1Retainer for strainer 1

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Printed from Grundfos Product Centre [2018.06.003]

Pos Description Annotation Données de classification Référence Quantité Unité85 Strainer 1

- 122 Priming screw 1Priming screw 1Spacer 1

+ Motor 1 pcs

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Disclaimer: The information about the Grundfos pump in this document may be outdated. Data may be subject to alterations without further notice. Please contact us to verify the data above is still accurate/up-to-date.

All information is copyright Grundfos.

info@lenntech.comhttps://www.lenntech.comtel. +31 152 610 900 fax. +31 152 616 289