Calpeda NM, NMD Technical Data

13

Coverage chart n ≈ 2900

rpm

Close Coupled Centrifugal Pumps

with threaded ports

NM, NMD

Construction

Close-coupled, centrifugal pumps; electric motor with
extended shaft directly connected to the pump.

NM: single-impeller
NMD:

with two back-to-back impellers (with axial thrust balancing).

Connections: threaded ports ISO 228/1 (BS 2779).
NM, NMD: version with pump casing and lantern bracket in cast iron.
B-NM, B-NMD: version with pump casing and lantern bracket in bronze.

(the pumps are supplied fully painted).

Applications

For clean liquids without abrasives, which are non-aggressive for
the pump materials ( solids content up to 0.2%).
For water supply.
For heating, air-conditioning, cooling and circulation plants.
For civil and industrial applications.
For fire fighting applications. For irrigation.

Operating conditions

Liquid temperature from -10 °C to +90 °C.
Ambient temperature up to 40° C.
Total suction lift up to 7 m.
Maximum permissible working pressure up to 10 bar
(16 bar for pumps NMD 25/190; NMD 32/210; NMD 40/180).
Continuous duty.

Motor

2-pole induction motor, 50 Hz (n ≈ 2900 rpm).
NM, NMD: three-phase 230/400 V ± 10% up to 3 kW;

400/690 V ± 10% from 4 to 9,2 kW;

NMM, NMDM:

single-phase 230 V ± 10%, with thermal protector.
Insulation class F. Protection IP 54.
Motor suitable for operation with frequency converter from 1,1 kW.

Classification scheme IE3 for three-phase motors from 0,75 kW.

Constructed in accordance with EN 60034-1; EN 60034-30-1.

EN 60335-1, EN 60335-2-41.

Special features on request

- Other voltages. - Frequency 60 Hz (as per 60 Hz data sheet).

- Protection IP 55. - Special mechanical seal

- Higher or lower liquid or ambient temperatures.

-

Motor suitable for operation with frequency converter up to 0,75 kW.

The electropumps NM, B-NM series comply with the European Regulation no.
547/2012.

Materials

Components NM, NMD B-NM, B-NMD
Pump casing Cast iron Bronze

Lantern bracket GJL 200 EN 1561

G-Cu Sn 10 EN 1982

Impeller Brass P- Cu Zn 40 Pb 2 UNI 5705

NM 17 Cast iron Bronze

GJL 200 EN 1561

G-Cu Sn 10 EN 1982

Shaft Cr steel AISI 430

Cr Ni Mo steel

Cr Ni steel AISI 303

AISI 316

1,1 -1,5 - 2,2 kW

NM 6 Cr steel AISI 430

Mechanical seal Carbon - Ceramic - NBR

01/2020

130

100

U.S. g.p.m.

5

Imp. g.p.m.

51020304

H

m

50

40

30

20

10

NMD 20/140

NMD 20/110

NM 1

10 20 30 40 50 100 200 300 400

NMD 32/210

NMD 25/190

NM 3

NM 20/160

NM 6

NM 2

NM 25/12

NM 25/20

NM 25/160

50 100 200 30040

NMD 40/180

NM

12

NM 11

NM 10

400

300

200

H

ft

100

50

NM 17

40

30

20

5

4

1

3

m /h

Q

l/min

2 3 4 5 6 7 8 9 10 20 30 40 50 100

30 40 50 100 150

200 300 400 500 1000 1500

72.820.C

14

Close Coupled Centrifugal Pumps

with threaded ports

NM, NMD

Performance n ≈ 2900

rpm

B-NM NM
B-NMD NMD

B-NMD 20/110B/A ● NMD 20/110B/A ●
B-NMD 20/110Z/A ● NMD 20/110Z/A ●
B-NMD 20/110A/B ● NMD 20/110A/B ●
B-NMDM 20/140BE NMDM 20/140BE
B-NMD 20/140B/A NMD 20/140B/A
B-NMDM 20/140AE NMDM 20/140AE
B-NMD 20/140A/A NMD 20/140A/A
B-NM 20/160BE

● NM 20/160BE ●

B-NM 20/160A/A ● NM 20/160A/A●

P

2

kW HP

0,45 0,6
0,55 0,75
0,75 1

1,1 1,5
1,1 1,5
1,5 2
1,5 2

0,75 1

1,1 1,5

Q

m

3

/h

l/min

H

m

1

16

33
37
43
52
53

57,5

67

1,2

20

32
36

42
51,5
52,5

57
66,5

1,5

25

31
35

40,5

51
52

56,5

66

1,89

31,5

29
33
39
50

51
55,5
64,5
30,5

36

2,4

40

26,5
30,5
36,5
48,5

50
54
63
30

35,5

3

50

23

27,5

33
47

48
51,5
61,5
29,5

35

3,6

60

18
23
29
45
46
49

59
28,5
34,5

4,2

70

18
25

43,5

46

57
27,5
33,5

4,8

80

40

43
53,5
26,5

32

5,4

90

40

50
25,5
30,5

6

100

36
46
24
29

6,6

110

22
27

8,4

140

7,5

125

B-NM NM
B-NMD NMD

B-NM 25/12B/A

● NM 25/12B/A ●

B-NM 25/12A/B ● NM 25/12A/B ●
B-NM 25/160B/A ● NM 25/160B/A●
B-NM 25/160A/A ● NM 25/160A/A●
B-NM 25/200B/C NM 25/20B/C
B-NM 25/200A/B NM 25/20A/B
B-NM 25/200S/C NM 25/20S/C
B-NMD 25/190C/B NMD 25/190C/B
B-NMD 25/190B/A NMD 25/190B/A
B-NMD 25/190A/B NMD 25/190A/B

P

2

kW HP

0,55 0,75
0,75 1

1,1 1,5
1,5 2
2,2 3

34
4 5,5

2,2 3

34
4 5,5

Q

m

3

/h

l/min

H

m

2,4

40

20

23,5

62
76
98

3

50

19,9
23,4

31
36,5
42,2
49,9
57,4
60,5

75

97

3,6

60

19,8
23,3
30,7
36,2
41,9
49,8
57,3

59
74
96

4,8

80

19,3
22,9

30
35,5
41,4
49,4

57
55,5

70
93,5

6

100

18,5
22,1
28,5
34,5
40,7
48,9
56,8

51
66
90

6,6

110

18

21,7

28

34
40,2
48,5
56,5
48,5

64

88

7,5

125

17,3
20,9

27
33,5
39,7
48,1
56,2

44

60

84

8,4

140

16,3

20
26

32,5

39
47,5
55,8

38

54

79

9,6

160

15

18,7

23

31
37,9
46,6
55,1

46

70

10,8

180

13,2
17,1

28,5
36,7
45,6
54,3

12

200

11

15,2

26
35,2
44,4
53,2

13,2

220

33,4

43
52

15

250

40,8
49,9

16,8

280

37,9
47,2

18

300

44,9

NM

NM 10/FE ●
NM 10/DE ●
NM 10/A/A ●
NM 10/S/A ●
NMM 11/BE
NM 11/B/A
NMM 11/A
NM 11/A/B
NM 12/D/B
NM 12/C/A
NM 12/A/B

P

2

kW HP

0,55 0,75
0,75 1

1,1 1,5
1,5 2
1,5 2
1,5 2
1,8 2,5
2,2 3
2,2 3

34
4 5,5

Q

m

3

/h

l/min

H

m

6,6

110

12,5

18

23
23,5
26,5
29,5
30,2
35,5

38

45
57,5

7,5

125

12,5

18

23
23,5
25,5
29,5
30,1
35,5
37,5
44,5

57

8,4

140

12
17,5
22,5

23

25

29
29,8

35

37

44

56

9,6

160

11,5

17
22

22,5

24
28,5
29,4
34,5

36
43,5
55,5

10,8

180

11
16,5
21,5

22

23
27,5
28,8

34

35
42,5

55

12

200

10
16

21
21,5
22,5

27
28,1
33,5
33,5

41
54,5

13,2

220

9
15,5
20,5

21

21,5

26

27,4

33
32
40

53,5

15

250

7,5

14

19
20,5
19,5

25*

26

32*

38
51,5

16,8

280

19

17,5

22,5*

24,5

30*

36
49

18,9

315

18,5

21

350

16,5

24

400

13

27

45030500

NM

NM 1/AE ●
NM 2/B/A ●
NM 2/S/A ●
NM 2/A/B ●
NM 6/B ●
NM 6/A ●
NMM 3/CE
NM 3/C/A
NMM 3/BE
NM 3/B/A
NMM 3/A/A
NM 3/A/B

P

2

kW HP

0,37 0,5
0,55 0,75
0,55 0,75
0,75 1
0,75 1

1,1 1,5
1,1 1,5
1,1 1,5
1,5 2
1,5 2
1,8 2,5
2,2 3

Q

m

3

/h

l/min

H

m

1

16

22
27
31

33,5

1,2

20

21,6
26,5
30,5

33

37,5
37,5

42
47

47,5

56

1,5

25

21,3

26
30

32,5

37,5
37,5

42

47
47,5
55,5

1,89

31,5

20,9
25,5

29

32
30,5
35,5

37

37
41,5
46,5

47
55,5

2,4

40

20,3

25
27,5
31,5

30
35,2
36,5
36,5

41

46
46,5

55

3

50

19,4

24
25,5
30,5
29,5
34,7

36

36
40,5
45,5

46
54,5

3,6

60

18,1

23
23,5
29,5
28,5

34

35

35

40

45
45,5
53,5

4,2

70

16,3

22

20
28,5
27,5

33

34

34

39

44
44,5
52,5

4,8

80

20
16
27

26,5

32
32
32
37

43
43,5
51,5

5,4

90

26
25,5
30,5

30,5

35
41,5

42

50

6

100

24
24
29

28,5

32
40

40,5

48

6,6

110

22
27

37,5

38
46

8,4

140

19*

26

26,5

36

7,5

125

18

23,5

33

33,5

42

15

Close Coupled Centrifugal Pumps

with threaded ports

P2 Rated motor power output.

H Total head in m.

NM, NMD Standard construction.
B-NM, B-NMD Bronze construction.

P

1 Maximum power input.

P

2 Rated motor power output.

I

A/IN D.O.L. starting current / Nominal current

● With single-phase motor = NMM - NMDM.

*

Maximum suction lift 1-2 m.
Tolerances according to UNI EN ISO 9906:2012

NM, NMD

Performance n ≈ 2900

rpm

Rated currents

96

1600

B-NMD NMD

B-NMD 32/210D/B NMD 32/210D/B
B-NMD 32/210C/A NMD 32/210C/A
B-NMD 32/210B/A NMD 32/210B/A
B-NMD 32/210A/B NMD 32/210A/B
B-NMD 40/180D/B NMD 40/180D/B
B-NMD 40/180C/A NMD 40/180C/A
B-NMD 40/180B/A NMD 40/180B /A
B-NMD 40/180A/B NMD 40/180A/B

P

2

kW HP

4 5,5
5,5 7,5
7,5 10
9,2 12,5

4 5,5
5,5 7,5
7,5 10
9,2 12,5

Q

m

3

/h

l/min

H

m

5,4

90

71

84
104
114

6

100

69

83
103
113

6,6

110

67,5

82
102
112

7,5

125

65

81
100
110

60

69

87

94

8,4

140

62,5

79
98

108

59,5

68
86
93

9,6

160

58
76
95

105

57
67
85
92

10,8

180

53
73
92

103

56
66
84
91

12

200

46
69
88
99

53
64,5
82,5
89,5

13,2

220

37*
64*
84*
96*

51,5

63
81
88

15

250

54*
76*
90*

48
60
78
85

16,8

280

44
57
75
82

18,9

315

39
53
71
78

21

350

34*
48*
66*
74*

24

400

25*
40*
59*
67*

B-NM NM

B-NM 17/H/A ● NM 17/H/A ●
B-NM 17/G/A ● NM 17/G/A ●
B-NM 17/F/B NM 17/F/B
B-NM 17/D/A NM 17/D/A

P

2

kW HP

1,1 1,5
1,5 2
2,2 3

34

Q

m

3

/h

l/min

H

m

21

350

9,5

12

24

400

9,2

11,7

16

27

450

9

11,5

16
18

30

500

8,6
11,2
15,5

18

33

550

8,2

11
15

17,5

37,8

630

7,5
10,3
14,5

17

42

700

6,7
9,7

14

16,5

48

800

5,5
8,5

13

15,5

54

900

3,5*

7*

11,5*

14*

60

1000

4*
10*
13*

66

1100

8*

11,5*

75

1250841400

* NMM 25/12B/A
* NMM 10/FE

* NMM 25/12A/A
* NMm 10/DE

P

1 P2 230 V

kW HP I

kW

0,37

0,62

0,45

0,72

0,55

1

0,55

0,9

0,55

0,9

0,75

1,3

0,75

1,2

0,75

1,2

1,1

1,6

1,5

2

1,8

2,5

0,5

0,6
0,75
0,75
0,75

1
1
1

1,5

2

2,5

1~

N

AIA/I

3
3,6
4,5
4,2
4,2

6
5,4
5,8
7,4
9,2

11,2

2,7
2,9
2,3
2,5
2,5

3,3
2,6

3,8
4,5

P

N

* NM 25/12B/A
* NM 10/FE

3

* NM 25/12A/B
* NM 10/DE

3

kW HP I

0,37
0,45
0,55
0,55
0,55
0,75
0,75
0,75

1,1
1,5
2,2

3

4
5,5
7,5
9,2

2

0,5

0,6
0,75
0,75
0,75

1
1
1

1,5

2
3

4
5,5
7,5

10

12,5

230 V Δ / 400 V Y

400 V Δ / 690 V Y

N AIN AIN AIA/IN

2,3
2,3

2,8

3,7
3,5

4,6

7,5
9,15
11,5

1,3
1,3
1,7

3

1,6
2,3

4

2,2

2

2,3

4

2,7
4,3
5,3
6,6

9,6
10,9
14,3
18,5

5,5
6,3
8,3

10,7

3,8
3,5
3,6
3,9
4,8
5,5
6,1
6,1
5,5
6,1
8,4
8,2
8,9
9,1
9,1
8,2

16

Close Coupled Centrifugal Pumps

with threaded ports

NM

A

A

B

B

A

S

72.047 72.048

72.050

70

80

90

100

110

120

130

40

50

60

0

10

20

012345

Q

m /h

0 5 10 15 20

U.S. g.p.m.

0 20304050607080l/min

0 0.2 0.4 0.6 0.8 1 1.2

l/s

10

20

15

25

30

H m

40

50

60

70

80

90

H ft

0.2

0.3

0.4

0.5

0.6

P kW

0.3

0.5

0.7

P HP

0

1

2

3

4

5

NPSH m

0

5

10

15

NPSH ft

012345

Q m /h

30

35

40

44

46

η 47%

Ø 130

01234567

Q

m /h

0 102030

U.S. g.p.m.

0 50 100l/min

0 0.5 1 1.5 1.9

l/s

10

20

30

40

H m

40

60

80

100

120

H ft

0.0

0.5

1.0

P kW

0.5

1.0

P HP

0

2

4

6

8

NPSH m

0

10

20

NPSH ft

01234567

Q m /h

35

40

42

43

44

η 45%

44

0

Ø 158

Ø 143

012345

m /h

Q

Q

0 5 10 15 20

U.S. g.p.m.

0 20304050607080l/min

0 0.2 0.4 0.6 0.8 1 1.2

l/s

10

20

30

40

H m

40

60

80

100

120

H ft

0

0.5

1.0

P kW

0

0.5

1.0

P HP

0

1

2

3

4

NPSH m

0

5

10

NPSH ft

012345

m /h

30

32

34

36

η 38%

36

34

32

30

Ø 155

NM 1/A

NM 2

NM 2/

S

3

3

3

3

3

3

l/min

Q

m /h

3

Q

m /h

3

NM 6

0 10050 150

987654320

987654320

10

20

30

40

0

0,4

0,8

1,2

1,6

0

0,4

0,8

1,2

1,6

2

0

20

40

60

0

2

4

6

8

161,5Ø A

152Ø B

A

B

A

B

0 101520253035

U.S. g.p.m.

H ft

NPSH ft

H

m

P

kW

(%)

NPSH

m

P HP

η

Characteristic curves

n ≈

2900

rpm

17

Close Coupled Centrifugal Pumps

with threaded ports

NM

Characteristic curves

n ≈

2900

rpm

01234567

0102030

U.S. g.p.m.

0 20 40 60 80 100

0 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8

20

30

25

35

40

70

80

90

100

110

120

130

H ft

0.4

0.6

0.8

1.0

0.6

0.8

1.0

1.2

1.4

1.6

P

HP

0

1

2

3

0

4

8

NPSH ft

01234567

1.2

37

39

41

43

η 43%

Ø 161.5

Ø 152

024681012

0 1020304050

U.S. g.p.m.

0 50 100 150 200

0123

10

20

15

25

30

40

50

60

70

80

90

H ft

0

0.2

0.4

0.6

0.8

1.0

0

0.2

0.4

0.6

0.8

1.0

1.2

P

HP

0

2

4

6

0

5

10

15

NPSH ft

024681012

40

50

54

58

η 70%

60

62

64

66

62

60

Ø 131.5

Ø 121

02468101214

0 2030405060

U.S. g.p.m.

0 50 100 150 200

01233.8

20

30

25

35

40

70

80

90

100

110

120

130

H ft

0

1

2

3

4

5

0

4

8

12

16

NPSH ft

02468101214

0.4

0.6

0.8

1.0

1.2

1.4

1.6

0.6

0.8

1.0

1.2

1.4

1.6

1.8

2.0

P

HP

45

50

53

η 57%

56

55

Ø 161.5

Ø 150

55

A

A

B
B

C

A
B

B

C

C

72.049/1

η 39%

Ø 202

Ø 191

Ø 181

Ø 171

1

~

1~

Ø 191

3

~

3~

1~

3~

023456789

Q

m /h

010203038

U.S. g.p.m.

0 50 100 150l/min

0 0.5 1 1.5 2 2.4

l/s

20

30

40

50

60

H m

80

100

120

140

160

180

H ft

0

1

2

2.6

P kW

0

1

2

3

P HP

0

2

4

6

NPSH m

0

5

10

15

NPSH ft

023456789

Q m /h

3~

3~

1~

1~

NM 3

A

B

A

B

A

B

A

B

Q

m /h

3

l/min

l/s

H

m

P

kW

NPSH

m

Q m /h

3

72.005

Q

m /h

3

l/min

l/s

H

m

P

kW

NPSH

m

Q m /h

3

72.006/N

Q

m /h

3

l/min

l/s

H

m

P

kW

NPSH

m

Q m /h

3

72.007

NM 20/160

NM 25/12

NM 25/160

A

B

A

B

3

3

30

34

38

38

34

30

18

Close Coupled Centrifugal Pumps

with threaded ports

NM

Characteristic curves

n ≈

2900

rpm

0 5 10 15 20 25

0 40 60 80 100

U.S. g.p.m.

0 100 200 300 400

0123456

5

10

15

20

25

20

30

40

50

60

70

80

H ft

0

0.4

0.8

1.2

1.6

0

0.4

0.8

1.2

1.6

2.0

P

HP

0

2

4

6

8

0

10

20

NPSH ft

0 5 10 15 20 25

60

65

66

68

70

68

66

65

η 72%

Ø 103

Ø 118

Ø 130

Ø 130

051015

0 203040506070

U.S. g.p.m.

0 100 200 300

012345

15

20

25

30

35

38

60

80

100

120

H ft

0.4

1.0

2.0

2.4

1

2

3

P

HP

0

2

4

6

8

0

5

10

15

20

25

NPSH ft

051015

50

Ø 164

3~

Ø 149

1~

Ø 149

1~ Ø 143

3~

3~

1~

1~

55

57

59

61

η 63%

0 5 10 15

0 203040506070

U.S. g.p.m.

0 100 200 300

012345

30

40

50

60

100

120

140

160

180

H ft

1

2

3

4

2

3

4

5

6

P

HP

0

2

4

5

0

5

10

15

NPSH ft

0 5 10 15

40

45

47

49

51

η 53%

52

Ø 204

Ø 187

Ø 178

H ftP

HP

NPSH ft

0 5 10 15

0204060

U.S. g.p.m.

0 50 100 150 200 250 300

30

40

50

60

100

120

140

160

180

0

1

2

3

4

0

2

4

0

2

4

6

8

10

0

10

20

30

0 5 10 15

Ø 200

Ø 190

Ø 178

(%)

η

S

A

D

F

S

A

D

F

A

B

A

B

A

B

B

A

A

C

D

A

C

D

Q

m /h

3

l/min

l/s

H

m

P

kW

NPSH

m

Q m /h

3

72.052

Q

m /h

3

l/min

l/s

H

m

P

kW

NPSH

m

Q m /h

3

72.053

Q

m /h

3

l/min

l/s

H

m

P

kW

NPSH

m

Q m /h

3

72.054

NM 10

NM 11

NM 12

H

m

P

kW

NPSH

m

S

A

B

S

S

B

A

B

Q

m /h

3

l/min

Q

m /h

3

72.008

NM 25/20

0

20

40

60

80

19

Close Coupled Centrifugal Pumps

with threaded ports

012345

0 5 10 15 20

U.S. g.p.m.

0 20304050607080

0 0.2 0.4 0.6 0.8 1 1.2

10

20

30

40

50

50

100

150

H ft

0.2

0.4

0.6

0.8

1.0

0.4

0.6

0.8

1.0

P

HP

0

1

2

3

4

0

5

10

NPSH ft

012345

1.2

30

35

37

38

η 38,5%

38

37

Ø 130-130

Ø 124-124

Ø 118-118

0123456

0 5 10 15 20 25

U.S. g.p.m.

0 20406080100

0 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6

30

40

50

60

70

100

150

200

H ft

0.6

1.0

1.0

1.5

2.0

2.5

P

HP

0

1

2

3

4

0

5

10

NPSH ft

0123456

2

35

37

40

η 41%

40

1.5

Ø 147-147

1~

Ø 158-158

3~

Ø 143-143

3~

Ø 143-143

1~

3~

1~

0246810

0 10203040

U.S. g.p.m.

0 50 100 150

0 0.5 1 1.5 2 2.5

30

40

50

60

70

80

90

100

110

100

200

300

H ft

1

2

3

4

5

2

3

4

5

6

P

HP

0

1

2

3

4

5

0

5

10

15

NPSH ft

0246810

30

35

35

37

η 40,5%

40

40

Ø 190-190

Ø 172-172

Ø 156-164

0 10203040506070

0 100 150 200 250 300

U.S. g.p.m.

0 200 400 600 800 1000

0 4 10 15 18

0

5

10

15

20

0

10

20

30

40

50

60

H ft

0

1

2

3

0

1

2

3

4

P

HP

0

1

2

3

4

5

0

5

10

15

NPSH ft

0 10203040506070

65

70

72

74

75

η 76%

75

74

72

Ø 125

Ø 120

Ø 107

Ø 100

A

Z

B

A

Z

B

A

A

B

B

A

A

B

Q

m /h

3

l/min

l/s

H

m

P

kW

NPSH

m

Q m /h

3

72.001

Q

m /h

3

l/min

l/s

H

m

P

kW

NPSH

m

Q m /h

3

72.003

NMD 20/110

NMD 20/140

A

B

C

B

A

C

Q

m /h

3

l/min

l/s

H

m

P

kW

NPSH

m

Q m /h

3

72.009

NMD 25/190

D

F

G

H

Q

m /h

3

l/min

l/s

H

m

P

kW

NPSH

m

Q m /h

3

72.057

NM 17

D

F

G

H

NMD

Characteristic curves

n ≈

2900

rpm

20

Close Coupled Centrifugal Pumps

with threaded ports

NMD

Characteristic curves

n ≈

2900

rpm

U.S. g.p.m.

0204060

120

Ø 208-208

A

Ø 200-200

B

100

C

Ø 194-172

Ø 176-176

D

80

m

H

60

40

3

0 5 10 15

m /h

Q

l/min

0 50 100 150 200 250 300

l/s

012345

10

8

kW

6

P

4

2

6

m

4

NPSH

2

0

3

0 5 10 15

Q m /h

35

38

40

NMD 32/210

42

43

44

η 45%

D

A
B

C

72.013

350

300

250

200

150

12

10

15

10

5

0

8

6

4

H ft

HP

P

NPSH ft

U.S. g.p.m.

0 20406080100

100

75

m

H

50

25

0 5 10 15 20
0 100 200 300 400

0123456

10

8

6

kW

P

4

2

0

5

4

m

3

2

NPSH

1

0

0 5 10 15 20

m /h

Q

l/min

l/s

Q m /h

Ø 184-184

A

Ø 178-178

B

C

Ø 168-156

D

Ø 156-156

3

3

45

50

NMD 40/180

55

56

57

η 57.5%

57.5
57

56

A

B

C

D

72.029

12

10

300

200

100

8

6

4

2

0

15

10

5

0

H ft

HP

P

NPSH ft

21

Close Coupled Centrifugal Pumps

with threaded ports

NM

Dimensions and weights

B-NM

B-NM 20/160A/A-BE
B-NM 25/12A/B -B/A
B-NM 25/160A/A-B/A

B-NM 25/200B/C
B-NM 25/200A/B-S/C

B-NM 17/

B-NM 17/D/A

NM

NM 1/AE

NM 6/A-B
NM 3/ B
NM 3/A/B

/A-C/A

NM 20/160A/A-BE
NM 25/12A/B-B/A
NM 25/160A/A-B/A
NM 25/20B/C
NM 25/20A/B-S/C

NM 10/

S/A-A/A-DE-FE

NM 11/B/A

NM 12/D/B
NM 12/A/B-C/A
N

B-NM 17/F/B NM 17/F/B

M 17/ G/A-H/AG/A-H/A

NM 17/D/A

DN

1 DN2

ISO 228

G1 G1

G1

G1 G1

G1

1

/4

G11/4

G3/4
G11/2 G1
G1

1

/2 G1

G1

1

/2G1

G1

1

/2G1

G2 G1

1

/4

G2 G11/4

G2 G11/4

G21/2G21/

2

a

40

53

50

53
56
56

63

63

63

70

70

80

fM

261

349

415
375
313
380
433
460
445
460
382
400

440
470
417

480

h1

80

100

112

100

90

100

125

125

100

112

132

112

h2

132

150

180

150
140
160

180

180

150

170

190

160

H

176

213

240

228
199
228
2

263

53

253
263

228

240

260
270

240

240

250

m1

40

37,5

55

37,5
37,5
37,5

45

45

50

50

50

50

m2

32

27,5

43

27,5
27,5
27,5

32,5

32,5

35

35

35

35

n1

170

190

245

190
170
190

245

245

190

210

240

210

n2

140

150

205

150
130
150

200

200

140

160

190

160

n3

17

17

37

30

9
30
49
42
49
42
30

37

47
45
37
37
20

b

35

38

45

38
38
38

45

45

50

50

50

50

s

9,5

9,5

11, 5

9,5
9,5
9,5

11, 5

11, 5

13

15

15

14

l1

77

102

110

102

85

102

125

125

90

103

125

96

l2

81

102

113

102

88

102

125

125

97

110

127

113

w

171

225

284

375 244

246
195
246
291
295
303
295
239
2

NM 11/A/B

440 287

47

287
300
2

463 304

57

295

g1

10

10

NM 2/A/B-S/A-B/A

G1 G1

45

305 95 150 207 40 32 190 160 17 35 9,5 87 90 203

10

12

10
10
10

11

11

14

14

14

14

mm

NMM

kg

NM

kg

B-NM

kg

131

(NMM 3/A/A)

(NMM 11/A)

8,7

14
14,2
15,1
17,8
19,3

24

26
30,4
19,9
20,7
13,2
14,2
20,4
22,5

19,3
19,4
20,2
22,1
24,7

23
24,2

NM 1/AE
NM 2/B/A
NM 2/S/A
NM 2/A/B
NM 6/B
NM 6/A
NM 3/C/A
NM 3/B/A
NM 3/A/B

B- NM 20/160BE
B- NM 20/160A/A
B- NM 25/12B/A
B- NM 25/12A/B
B- NM 25/160B/A
B- NM 25/160A/A

NM 25/20B/C
NM 25/20A/B
NM 25/20S/C
B- NM 25/200B/C
B- NM 25/200A/C
B- NM 25/200S/C
NM 10/FE
NM 10/DE
NM 10/A/A
NM 10/S/A
NM 11/B/A
NM 11/A/B
NM 12/D/B
NM 12/C/A
NM 12/A/B
B- NM 17/H/A
B- NM 17/G/A
B- NM 17/F/B
B- NM 17/D/A

8,6
13,1
13,3

15

17,6

19
22,9
25,1
29,1
18,4
19,7
12,3
14,1
19,7
21,5
31,6
40,9
42,2

18,5
18,8
19,3
21,5
24,1
28,1
33,5

42
43,5
22,2
23,2
28,2
36,2

21
22,5
13,5
15,3
22,8

24

35,7
43,7
45,2

29,2
30,2
35,2
43,2

TYPE

fM

a

DN2

4.93.098

H

DN1

m2

m1

w

DN

sb

l2l1

2

h2

g1

h1

n3

n2

n1

22

Close Coupled Centrifugal Pumps

with threaded ports

NMD

Dimensions and weights

TYPE

TYPETYPE

NMD 20/110

75

325

G1

G1

NMD 20/140
NMD 25/190

fM

a

9393

DN2

l1 l2

DN2

1/4

G1

204

4.93.179

36
46

B- NMD 20/110B/A 13 12,1 13,4
B- NMD 20/110Z/A 14 13 14,2
B- NMD 20/110A/B 15,1 14,2 17,4

B- NMD 20/140A/A-B/A
B- NMD 25/190C/B
B-NMD 25/190A/B-B/B

1888.5

NMDM NMD B-NMD

kg kg kg

B-NMD

NMD 20/140A/A-B/A
NMD 25/190C/B
NMD 25/190A/B-B/A

9.5 38

NMD

17

130
170

DN

ISO 228

G11/4 G1

1

G1

1 DN2

/2 G1

g1

256
314
306

h2

h1

g1

w

10

13

132

H

s

n3 b

n2

n1

b

s

l1

110

133

l2

110

133

n3

38

37
50
49

9,5

50

14

fM

417
487
500

DN1

m2

m1

w

NMDM NMD B-NMD

n1

55

200

70

240

kg kg kg

mm

B- NMD 20/140B/A 23,9 22,7 25,2
B- NMD 20/140A/A 25,2 24,8 27,6
B- NMD 25/190C/B 42 45,7
B- NMD 25/190B/A 49,7 54
B- NMD 25/190A/B 51,5 55,5

h1

h2

H

m1

m2

112

152

243

75

180

268
278

100

140

4.93.005

n2

160

190

10

95

a

80

97

NMD 32/210
NMD 40/180

a

DN

1

DN

B-NMD

B- NMD 32/210D/B
B- NMD 32/210B/A -C/A
B- NMD 32/210A/B
B- NMD 40/180D/B
B- NMD 40/180B/A -C/A
B- NMD 40/180A/B

fM

l1 l2

2 DN2

H

4.93.077

s1

m5 w1w

m4

NMD

NMD 32/210D/B
NMD 32/210B/A -C/A
NMD 32/210A/B
NMD 40/180D/B
NMD 40/180B/A -C/A
NMD 40/180A/B

b1

n5

n4

DN1 DN2

ISO 228

G 2 G 11/4

G 2 G 11/2

h2

g2

h1

g2*

fM h1 h2 H m4 m5 n4 n5

a

205

110

121

530
550
625
535
555
630

155
150
170
155
150
170

215

293
310
355
293
310
355

280
298
205
280
298

B- NMD 32/210D/B 60,5
B- NMD 32/210C/A
B- NMD 32/210B/A
B- NMD 32/210A/B
B- NMD 40/180D/B
B- NMD 40/180C/A
B- NMD 40/180B/A
B- NMD 40/180A/B

mm

w1 b1 s1 l1 l2 w

140

194

175
250
268
175
250
268

258
286
194
258
286

190
216
140
190
216

0
0
6
0

15

0
6

NMD B-NMD

kg kg

71
77
99

59,5

70
76
97

10

54
68
70
54
68
70

150

12
12
10

145

12
12

66,5

77

82,5

105

65,5

76

81,5

102

g2

6*

139

15015

145215

108
152
133
102
145

38
38
6*
38
38

23

Features

4.93.322

Compact Design

The compact design allows for easy installtion even in confined spaces.

Robust

The mechanical structure of the hydraulic parts in contact with the pumped liquid are
dimensioned to guarantee the maximum resistence to mechanical stress.

A unique design

The lantern bracket design prevents contact with the pumps rotating parts, providing
protection to the end user whilst allowing for inspection of the mechanical seal.

Reliable

The bearing and shaft are designed to ensure the reduction of the stress, providing
high reliability under all operating conditions.

Close Coupled Centrifugal Pumps

with threaded ports

NM

24

Features

Close Coupled Centrifugal Pumps

with threaded ports

NMD

Flexible

The option to choose between cast iron and bronze materias for the hydraulic
parts in contact with the pumped liquid allows NMD series pumps to be selected
for use with different types of liquids.

Robust

The mechanical structure of the hydraulic parts in contact with the pumped liquid
are dimensioned to guarantee the maximum resistence to mechanical stress.

Reliable

The bearing and shaft are designed to ensure the reduction of the stress, providing
high reliability under all operating conditions.

3.94.044