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Grundfos Submersible Pumps Selection

Article Details

Last Updated
13th of October, 2018

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Use the table below to choose a pump. The left column shows total head in feet and meters. The top row shows array wattage/number and suggested type of modules. Boxes show seasonal pump performance and maximum flow. Select the row with the head (total lift) that most closely matches your application. Move across the row to the column that contains the desired daily volume or peak flow rate. Note the pump model in that block and wattage of the PV array in that column.

Grundfos submersible pump Data
60 SQF-3 = Pump model
24,885 = Estimated daily summer volume (GPD)
19,944 = Estimated daily winter volume (GPD)
44 = Peak flow rate (gpm)

NOTE: Daily volume and flow calculations are calculated with Fresno, CA data at a 36 tilt in July, at 7.8 kWH/m2. Winter calculations are calculated with Fresno, CA data at a 36 tilt in February, at 4.7 kWH/m2. Most solar pumping systems will give significantly more output in the summer than in the winter. Also, up to 40% more water can be pumped in the summer if the array is on a tracking mount (these estimates are for non-tracking array mounting). The output can vary with different locations and years, and is not guaranteed.

Estimated Water Production from SQFlex Pumps

(Summer and winter volumes and peak flow rates based on solar array wattage)

Head

(Module watts)

230

230

230

230

230

230

feet

X (# of modules)

2

3

4

5

6

7

(m)

= (Array watts)

460

690

920

1150

1380

1610

6

(2)

Model

60
SQF-3

60
SQF-3

60
SQF-3

60
SQF-3

60
SQF-3

60
SQF-3




7.8 kWh/m2

24,885

31,609

37,627

42,809

46,335

49,272

4.7 kWh/m2

19,944

26,177

31,410

35,264

38,204

40,675

Max flow

42

52

61

68

73

77

25

(8)

Model

40
SQF-3

40
SQF-3

60
SQF-3

60
SQF-3

60
SQF-3

60
SQF-3




7.8 kWh/m2

13,027

20,089

26,345

31,950

35,680

38,605

4.7 kWh/m2

9,539

15,049

19,889

24,146

27,295

30,149

Max flow

24

35

47

56

62

66

50

(15)

Model

11
SQF-2

25
SQF-7

40
SQF-5

40
SQF-5

40
SQF-5

40
SQF-5




7.8 kWh/m2

5,582

9,725

14,817

19,166

22,462

25,183

4.7 kWh/m2

4,287

7,100

10,684

13,909

16,552

18,838

Max flow

9.6

19

27

35

40

44

75

(23)

Model

11
SQF-2

11
SQF-2

25
SQF-7

25
SQF-7

25
SQF-7

40
SQF-5




7.8 kWh/m2

4,580

6,300

9,221

11,832

13,742

17,381

4.7 kWh/m2

3,410

5,067

6,691

8,624

10,157

12,345

Max flow

8

11

17

21

27

31

100

(30)

Model

11
SQF-2

11
SQF-2

11
SQF-2

11
SQF-2

25
SQF-7

25
SQF-7




7.8 kWh/m2

3,606

5,617

6,695

7,303

10,833

12,536

4.7 kWh/m2

2,639

4,182

5,439

6,021

7,662

9,065

Max flow

6.4

10

12

14

19

22

125

(38)

Model

11
SQF-2

11
SQF-2

11
SQF-2

11
SQF-2

11
SQF-2

25
SQF-7




7.8 kWh/m2

2,897

4,769

6,145

6,915

7,286

10,006

4.7 kWh/m2

2,085

3,435

4,807

5,536

5,974

7,055

Max flow

5.3

8.3

11

12

14

18

150

(46)

Model

6
SQF-2

11
SQF-2

11
SQF-2

11
SQF-2

11
SQF-2

25
SQF-7




7.8 kWh/m2

2,454

4,041

5,675

6,565

6,952

7,844

4.7 kWh/m2

1,851

2,903

4,198

5,114

5,543

5,397

Max flow

4.5

7.2

10

12

12

13

175

(53)

Model

6
SQF-2

11
SQF-2

11
SQF-2

11
SQF-2

11
SQF-2

11
SQF-2




7.8 kWh/m2

2,282

3,450

5,024

6,114

6,633

6,926

4.7 kWh/m2

1,672

2,442

3,594

4,682

5,233

5,531

Max flow

4.1

6.3

8.8

11

12

12

200

(61)

Model

6
SQF-2

6
SQF-2

11
SQF-2

11
SQF-2

11
SQF-2

11
SQF-2




7.8 kWh/m2

2,050

2,885

4,237

5,593

6,199

6,586

4.7 kWh/m2

1,480

2,288

3,015

4,036

4,777

5,207

Max flow

3.8

5.4

7.6

10

12

12

250

(76)

Model

6
SQF-2

6
SQF-2

6
SQF-3

6
SQF-3

6
SQF-3

6
SQF-3




7.8 kWh/m2

1,584

2,585

3,556

4,509

5,440

6,477

4.7 kWh/m2

1,097

1,970

2,632

3,315

3,969

4,656

Max flow

3

4.9

5.5

7.5

9.6

11

300

(91)

Model

6
SQF-3

6
SQF-3

6
SQF-3

6
SQF-3

6
SQF-3

6
SQF-3




7.8 kWh/m2

1,524

2,516

3,058

3,379

3,556

3,628

4.7 kWh/m2

1,091

1,835

2,439

2,752

2,957

3,058

Max flow

2.8

4.5

5.7

5.9

5.9

5.9

400

(122)

Model

3
SQF-3

6
SQF-3

6
SQF-3

6
SQF-3

6
SQF-3

6
SQF-3




7.8 kWh/m2

974

1,859

2,613

3,025

3,216

3,365

4.7 kWh/m2

719

1,315

1,942

2,360

2,564

2,737

Max flow

1.8

3.4

4.8

5.7

5.7

5.7

500

(152)

Model

3
SQF-3

3
SQF-3

6
SQF-3

6
SQF-3

6
SQF-3

6
SQF-3




7.8 kWh/m2

814

1,287

2,000

2,593

2,857

3,025

4.7 kWh/m2

585

987

1,402

1,902

2,212

2,398

Max flow

1.5

2.4

3.7

4.9

5.5

5.5

650

(198)

Model

3
SQF-3

3
SQF-3

3
SQF-3

6
SQF-3

6
SQF-3

6
SQF-3




7.8 kWh/m2

498

990

1,298

1702

2149

2415

4.7 kWh/m2

316

692

1,015

1107

1473

1819

Max flow

0.9

1.9

2.5

2.6

4.1

4.9

800

(244)

Model

--

--

--

6
SQF-3

6
SQF-3

6
SQF-3




7.8 kWh/m2

--

--

--

871

1325

1741

4.7 kWh/m2

--

--

--

470

796

1111

Max flow

--

--

--

1.6

2.5

3.4


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