nm4, nms4 - lenntech · 41 nm4, nms4 the electropumps nm4, b-nm4, nms4, b-nms4 series comply with...

41

NM4, NMS4

The electropumps NM4, B-NM4, NMS4, B-NMS4 series comply with the EuropeanRegulation no. 547/2012.

MaterialiComponents NM4, NMS4 B-NM4, B-NMS4Pump casing Cast iron BronzeLantern bracket NM4

GJL 200 EN 1561 G-Cu Sn 10 EN 1982Casing cover for NMS4Lantern bracket NMS4 Cast iron GJL 200 EN 1561Impeller Cast iron Bronze

GJL 200 EN 1561 G-Cu Sn 10 EN 1982Brass P- Cu Zn 40 Pb 2 UNI 5705

For NM4 25/125 - 25/160 - 25/200 - NM4 32/16 - 32/20 - 40/20

Shaft Cr-Ni steel AISI 303 Cr Ni Mo steelAISI 430 from 1,5 kW to 15 kW AISI 316

Mechanical seal Carbon - Ceramic - NBRCounter-flanges Steel Fe 430B UNI 7070

10 20 30 40 50 100

5

10 NM4 32/20

NM4 32/16

NM4 25/12

NM4 25/160

NM4 25/200

NM4 40/16

NM4 40/20

NM4 40/25NM4 50/25

NM4 50/20

NM4 50/16NM465/16 NM4

80/16

NM480/20 NM4

100/20

NM4 100/250

NM(S)4100/315

NM480/25

NM480/315

NMS4 80/400

NM465/20

NM4 65/25

NM4 65/31NMS4

125/315

NM4125/250

NMS4125/400

NMS4100/400

NMS4150/315

NMS4150/400

20

Hm

30

40

50

60

100 150 200 300 400 500 1000 5000

30 40 50 100 200 300 400

40

50

Hft

100

200

20

30

200 300 400

500 1000 2000

500

3

4

7

10

2

10 U.S. g.p.m. 20

2 3Q40 50

5m /hl/min 10000

3000

700

70

72 849 C

Coverage chart n ≈ 1450 rpm

Close Coupled Centrifugal Pumps n ≈ 1450 rpm

ConstructionClose-coupled centrifugal pumps; electric motor with extended shaft directly connected to the pump up to 15 kW, new bracketconstruction for standard motors (Stub-shaft construction) from18,5 to 75 kW with integrated thrust bearing. Pump casing with axialsuction and radial delivery on top, main dimensions and perfor-mance according to EN 733 with additional sizes for completion.NM(S)4: version with pump casing and lantern bracket in cast iron.B-NM(S)4: version with pump casing and lantern bracket/casing

cover in bronze. (the pumps are supplied fully painted).ConnectionsSizes ConnectionsNM4 25/... Threaded ports ISO 228from NM4 32/.. to NMS4 150/.. Flanges according to PN 10, EN 1092-2

Counter-flanges (on request)Sizes Flangesfrom NM4 32/.. to NM4 50/.. Screwed flanges EN 1092-1, PN 16from NM4 32/.. to NMS4 150/.. Flanges for welding EN 1092-1, PN 10

Version with frequency converter (on request)

ApplicationsFor clean liquids without abrasives, which are non-aggressivefor the pump materials (contents of solids up to 0,2%).For water supply. For heating, air conditioning, cooling andcirculation plants. For civil and industrial applications.When low noise operating is required. For irrigation.

Operating conditionsLiquid 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 forNM4 40/16,20; NM4 50/16; NM4 65/16,20,25; NM(S)4 80/16,31,400).Continuous duty.

Motor4-pole induction motor, 50 Hz (n ≈ 1450 rpm).NM4, NMS4: three-phase 230/400 V ± 10% up to 3 kW;

400/690 V ± 10% from 4 to 75 kW.Insulation class F. Protection IP 54 (IP 55 for NMS4).Motor suitable for operation with frequency converter from 0,75 kW.Classification scheme IE3 for three-phase motors from 0,75 kW.Constructed in accordance with: EN 60034-1; EN 60034-30-1.

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 0,55 kW.

Close Coupled Centrifugal Pumpswith flanged connections NM4 EI

Pumps with frequency converter

The NM4 EI pumps are available with power from 0,25 kW up to 15 kW, the pumps are equipped with I-MATinstalled on board which allows to realize a variable-speed system extremely compact and efficient, ideal inapplications of water supply and in the distribution of hot and cold water. The pump is equipped with transducers suitable for operation and is already programmed at the factory.

Advantages- Energy saving- Compact design- Easy to use- Programmable to suit the system requirements- Reliability

CostructionThe system comprises of:- Pump- Induction motor- I-MAT Frequency converter- Motor adapter for the motor mounting of the frequency converter- Connection cable between frequency converter and induction motor- Transducers

Main featuresRated motor power output from 0,25 kW to 15 kWControl range from 870 to 1450 rpm (4-pole)Protection against dry runningProtection against operations with closed valve portsProtection against system leakagesProtection against overcurrent in the motorProtection agains overvoltage and undervoltage of the power supplyProtection against current unbalances between phases

Constant pressure mode with pressure transducer

In this mode, the system maintains the preset pressure when the flow required bythe installation changes.

Proportional pressure mode with pressure transducer

In this mode the system changes the working pressure according to the requiredflow rate.

Constant flow mode with flow meter

In this mode the system maintains a constant flow rate value in a point of the instal-lation according to the required pressure.

Fixed speed mode with setting of the speed preferential rotation.

In this mode, by changing the working frequency, you may choose any operationalcurve included within the working range.

Constant temperature modewith temperature transducer

In this mode the system keeps the temperature constant inside a system by chan-ging the speed of the pump.

Operating modes

H

Q

H

Q

H

Q

H

max

min

+-

+-

+ -

+-

Performance n ≈ 1450 rpm

NM4, NMS4 Close Coupled Centrifugal Pumps

B - NM4

5

2,4 3 3,6 4,8 5,4 6 7,5 8,4 9,6 10,8 12 13,2 15 16,8 18,9 21 24 27 30NM4

P2

kW HP

Qm3/h

l/min 40 50 60 80 90 100 125 140 160 180 200 220 250 280 315 350 400 450 500

Hm

B - NM410,8 12 13,2 15 16,8 18,9 21 24 27 30 33 37,8 42 48 54 60 66 75 84 96

NM4P2

kW HP

Qm3/h

l/min 180 200 220 250 280 315 350 400 450 500 550 630 700 800 900 1000 1100 1250 1400 1600

Hm

B - NM41 1,2 1,5 1,89 2,4 3 3,6 4,2 4,8 5,4 6 6,6 7,5 8,4 9,6 10,8 12 13,2 15

NM4P2

kW HP

Qm3/h

l/min 16 20 25 31,5 40 50 60 70 80 90 100 110 125 140 160 180 200 220 250

Hm

B-NMS430 33 37,8 42 48 54 60 66 75 84 96 108 120 132 150 168 180 192 210

NM4 - NMS4P2

kW HP

Qm3/h

l/min 500 550 630 700 800 900 1000 1100 1250 1400 1600 1800 2000 2200 2500 2800 3000 3200 3500

Hm

7,69

12,514,3

7,58,9512,414,2

0,370,370,550,750,370,550,751,11,11,52,23

0,50,5

0,751

0,50,75

11,51,5234

7,48,9

12,314,1

7,28,712

13,9

7,18,6

11,813,76,17,69,613

14,817,421,422,9

6,98,511,613,5

67,69,612,914,717,321,522,8

6,37,9

10,612,95,97,69,6

12,714,517,221,322,9

5,97,510

12,35,87,69,412,614,417

21,222,8

5,26,88,9

11,35,67,39,3

12,414,216,821

22,5

4,26

7,610,25,47,19,1

12,214

16,620,922,5

5,16,28,95,26,99

1213,816,320,822,2

4,77,55

6,68,8

11,513,616

20,522

4,56,38,4

10,813

15,120

21,8

3,95,77,910

12,213,819,521,4

3,15

7,28,6

11,312,118,320,4

2,34

6,47

1010,416,418,9

2,75,1

7,213,316

3,5

2,810

12,658

6,17,810

10,312,113,916,920,723,725,730,336,339,142,848,261,461,4

6,17,710

10,212

13,816,820,623,725,830,536,439,242,848,261,561,5

5,97,69,910,111,913,716,720,523,625,830,636,539,342,848,261,561,5

5,87,59,810

11,813,616,620,423,525,830,736,639,442,848,261,661,6

5,57,39,79,811,713,516,320,323,325,830,736,639,542,748,161,661,6

5,27

9,59,5

11,413,315,92023

25,630,736,539,442,547,961,561,5

4,96,89,39,111,113

15,419,622,725,430,536,439,342,247,761,361,3

4,66,49

8,610,612,614,819,122,225

30,236,139,241,847,361,161,1

45,98,57,79,8

11,813,918,221,524,429,635,638,741

46,660,760,7

3,35,28

6,69

1112,717,120,523,628,835

38,139,845,760,160,1

4,17

4,67,59,6

11,115,419

22,227,533,937,137,944,15959

5,9

5,77,99,3

13,517,220,425,932,535,735,442,157,657,6

67,2

11,415,118,324,130,934,132,439,555,855,8

9*12,7*15,92229

32,129,136,353,753,7

25,328,3

30,549,549,5

22,5*

43,9 39,2*

6,17,79,211,513,214,5

6,057,659,1511,413,214,5

67,69,1

11,413,214,5

5,97,559,0511,313,114,5

5,87,59

11,213,114,5

5,57,28,711,113

14,4

5,26,98,5

10,912,914,3

4,86,68,210,712,714,2

4,46,17,8

10,512,514

3,95,57,2

10,212,313,8

3,34,66,59,912

13,6

3,65,69,5

11,613,3

3,78,7

11,112,8

7,810,412,2

6,29,1

11,2

4,17,49,7

4,87,5 4,1

8,29,611,813,414,914,517,820,722,7

8,29,6

11,813,414,914,417,820,722,7

8,29,6

11,713,414,914,317,720,722,6

8,19,5

11,713,314,914

17,520,622,5

89,5

11,513,114,813,717,220,422,4

7,89,3

11,312,914,613,416,820

22,1

7,69,1

10,912,614,413

16,419,521,66,17,28,8

10,211,714,217,922,225,831

35,9

7,28,8

10,412,114

12,215,718,9216,17,18,8

10,211,714,218

22,325,731

35,9

6,78,39,8

11,513,411,214,918,220,2

67,18,7

10,111,614,218

22,425,530,935,8

6,27,89

10,812,89,7

13,817,119,4

67

8,710,111,614,118

22,425,330,835,7

5,57,28,19,9128,1

12,415,918,35,97

8,610

11,514,118

22,425

30,635,5

4,46,16,38,2

10,45,49,7

13,216,45,86,88,59,9

11,313,917,822,224,430,235,1

3,34,94,76,48,62,36,8

10,613,65,66,68,39,7

11,013,717,522

23,829,734,6

3,1

3,76

5,89

5,36,38

9,410,613,417

21,622,828,833,8

4,85,87,69,110,113,016,321

21,527,832,8

4,25,27,18,69,5

12,515,420,220

26,531,6

4,56,48

8,711,814,419,318,225

30,2

5,27

7,410,712,517,615

22,227,8

5,75,89,3

10,415,711

18,625

3,377

12,6

B-NM4 32/16B B-NM4 32/16A B-NM4 32/20B B-NM4 32/20A/B B-NM4 40/16C B-NM4 40/16B B-NM4 40/16A/B B-NM4 40/20B/B B-NM4 40/20A/B B-NM4 4025/C/C B-NM4 4025/B/C B-NM4 4025/A/B

NM4 32/16BE NM4 32/16AE NM4 32/20BE NM4 32/20A/B NM4 40/16C/A NM4 40/16B/A NM4 40/16A/C NM4 40/20B/B NM4 40/20A/B NM4 40/25C/C NM4 40/25B/C NM4 40/25A/B

1,11,11,11,52,22,22,234

1,11,11,52,22,234

5,55,57,59,2

1,51,51,523334

5,51,51,52334

5,57,57,510

12,5

1,11,52,22,2344

5,57,59,21115

18,518,5223037

1,52334

5,55,57,510

12,515202525304050

B-NM4 50/16B/B B-NM4 50/16A/B B-NM4 5025/D/B B-NM4 5025/C/C B-NM4 5025/B/B B-NM4 5025/A/B B-NM4 65/16C/C B-NM4 65/16B/C B-NM4 65/16A/C B-NM4 65/16S/A B-NM4 65/20B/A B-NM4 65/20A/A B-NM4 65/25B/B B-NM4 65/25A/C B-NM4 65/31C/B B-NM4 65/31B/B B-NM4 65/31A/B

NM4 50/16B/C NM4 50/16A/C NM4 50/20C/C NM4 50/20B/C NM4 50/20A/C NM4 50/25D/B NM4 50/25C/C NM4 50/25B/B NM4 50/25A/B NM4 65/16C/C NM4 65/16B/C NM4 65/16A/C NM4 65/16S/A NM4 65/20B/C NM4 65/20A/B NM4 65/25B/B NM4 65/25A/C NM4 65/31C/B NM4 65/31B/B NM4 65/31A/B

B- NM4 80/20C B- NM4 80/20B B- NM4 80/20A B- NM4 80/25C B- NMS4 80/250B/A B- NMS4 80/250A/A B- NM4 80/31C/B B- NMS4 80/315B/B B- NMS4 80/315A/B B- NMS4 80/315S B- NMS4 80/400C/B B- NMS4 80/400B/B B- NMS4 80/400A/B B- NMS4 80/400S

NM4 80/16C/C NM4 80/16B/C NM4 80/16A/C NM4 80/20C/B NM4 80/20B/A NM4 80/20A/A NM4 80/25C/A NM4 80/25B/B NM4 80/25A/B NM4 80/31C/B NM4 80/31B NM4 80/31A NMS4 80/315S NMS4 80/400C/B NMS4 80/400B/B NMS4 80/400A/B NMS4 80/400S

0,250,370,370,370,550,75

0,340,50,50,5

0,751

B- NM4 25/160BE B- NM4 25/160AE B- NM4 25/200C/A B- NM4 25/200B/A B- NM4 25/200A/C

NM4 25/12A/A NM4 25/160BE NM4 25/160AE NM4 25/200C/A NM4 25/200B/A NM4 25/200A/C

Performance n ≈ 1450 rpm


P2 Rated motor power output.H Total head in m.

NM4, NMS4 Standard construction.B-NM4, B-NMS4 Bronze construction.

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

Rated currents

P2 Rated motor power output.IA/IN D.O.L. starting current / Nominal current

P2 230 V Δ / 400 V Y

kW HP IN A IN A IA/IN

0,25 0,34 1,4 0,8 3,7

0,37 0,5 1,65 0,95 4,2

0,55 0,75 2,6 1,5 4,8

0,75 1 3,3 1,9 7,2

1,1 1,5 5 2,9 6,6

1,5 2 6 3,5 8,3

2,2 3 8,6 5 8,6

3 4 11,1 6,4 5,8

P2 400 V Δ / 690 V Y

kW HP IN A IN A IA/IN

4 5,5 8,3 4,8 7,2

5,5 7,5 12,5 7,2 7,2

7,5 10 16 9,2 7,1

9,2 12,5 19 11 7,4

11 15 22,5 13 9,6

15 20 29 16,7 9,1

18,5 25 34,5 19,9 6,4

22 30 40,5 23,4 6,7

30 40 55 31,8 6,7

37 50 67 38,5 6,8

45 60 81 46,8 6,9

55 75 96 55,4 7,5

75 100 130 75 6,8

B-NMS4 48 54 60 66 75 84 96 108 120 132 150 168 180 192 210 240 270 300 330

NM4 - NMS4P2

kW HP

Qm3/h

l/min 800 900 1000 1100 1250 1400 1600 1800 2000 2200 2500 2800 3000 3200 3500 4000 4500 5000 5500

Hm

B-NMS4 84 96 108 120 132 150 168 180 192 210 240 270 300 330 360 390 420 450 480 NM4 - NMS4

P2

kW HP

Qm3/h

l/min 1400 1600 1800 2000 2200 2500 2800 3000 3200 3500 4000 4500 5000 5500 6000 6500 7000 7500 8000

Hm

9,412

15,219,522,326,931,536,941,350,258,2

9,311,915,219,522,326,931,536,941,250,158,1

34

5,57,59,21115

18,5223037

45,57,510

12,5152025304050

9,211,815,119,422,226,831,436,841,15058

9,111,715

19,322,126,631,336,741

49,957,9

8,911,514,919

21,926,231,236,640,749,757,8

8,511,214,718,721,725,730,836,440,449,457,6

810,714,318,221,224,930,236

39,848,857,2

7,310

13,817,520,523,829,335,33948

56,3

6,59,3

13,116,619,822,728,234,538

47,155,7

5,68,4

12,215,618,821,326,933,436,546

54,5

46,7

10,713,817,118,924,631,43444

52,7

4,59

11,715

15,921,82931

41,350,5

7,5*10

13,413,719,827,228,739,549

6*8,4

11,711,3*17,6*25,3*

263747

5,58,9

14*22,2*

33,5*44*

1114

16,719,322,727,931,836,845,451,459,2

10,813,916,619,222,727,831,736,845,351,359,1

5,57,59,21115

18,52230374555

18,5223037455575

NM4 125/25E/BNM4 125/25D/BNM4 125/25C/BNM4 125/25BNM4 125/25ANMS4 125/315C/ANMS4 125/315B/ANMS4 125/315A/ANMS4 125/400C/ANMS4 125/400B/ANMS4 125/400A/ANMS4 150/315D/ANMS4 150/315C/ANMS4 150/315B/ANMS4 150/315A/ANMS4 150/400C/ANMS4 150/400B/ANMS4 150/400A/A

B- NMS4 125/250E/AB- NMS4 125/250D/AB- NMS4 125/250C/AB- NMS4 125/250B/AB- NMS4 125/250A/AB- NMS4 125/315C/AB- NMS4 125/315B/AB- NMS4 125/315A/AB- NMS4 125/400C/AB- NMS4 125/400B/AB- NMS4 125/400A/AB- NMS4 150/315D/AB- NMS4 150/315C/AB- NMS4 150/315B/AB- NMS4 150/315A/AB- NMS4 150/400C/AB- NMS4 150/400B/AB- NMS4 150/400A/A

NM4 100/20C/ANM4 100/20B/ANM4 100/20A/CNM4 100/25B/BNM4 100/25A/BNM4 100/31CNM4 100/31BNMS4 100/315A/ANMS4 100/400C/ANMS4 100/400B/ANMS4 100/400A/A

B- NM4 100/20C/AB- NM4 100/20B/AB- NM4 100/20A/CB- NMS4 100/250B/AB- NMS4 100/250A/AB- NMS4 100/315C/AB- NMS4 100/315B/AB- NMS4 100/315A/AB- NMS4 100/400C/AB- NMS4 100/400B/AB- NMS4 100/400A/A

7,510

12,51520253040506075253040506075100

10,513,716,419,122,627,731,636,745,251,259

10,113,416,218,922,427,631,536,645,151,158,9

9,713

15,918,722,227,231,136,444,950,958,722,825,630,635,645

50,858,8

9,112,415,418,221,826,530,635,944,450,458,222,625,430,635,644,950,758,7

8,311,614,617,521,225,629,735,243,749,757,722,325,130,535,544,750,558,6

7,811

14,117

20,824,929,134,74349

57,222

24,930,335,444,550,358,5

7,210,413,516,320,124

28,534,242

48,256,721,724,730,135,34450

58,3

6,29,4

12,515,319,322,827,333,240

46,855,721,124,229,735,243,549,557,9

4,47,4

10,413,317,420,224,9313744

53,520

23,329

34,642,548,557

5,18,2

10,9151722

28,433

40,550,518,622

27,933,740,547

55,5

5,88,2

12,413,518,525,328,5*36*

46,5*17

20,426,532,538,54554

9,39,5*

14,3*21,6*23,5*31,5*42,5*15,118,524,931364352

1316,523

29,233,540,549,5

10,614,120,827,130,53847

8*11,6*18,3*24,7*27*35*44*

8,9*15,4*21,8*23,5*32*41*

18,5*19,5*28,5*37,5

0 1 2 3 4 5 6

0 5 10 15 20 25 U.S. g.p.m.

0 20 40 60 80 100

0 0.2 0.4 0.6 0.8 1 1.2 1.4 1.6

3

4

5

6

10

12

14

16

18

20

H ft

0

0.1

0.2

0

0.1

0.2

P H

P

0

1

2

3

4

0

5

10

NP

SH

ft

0 1 2 3 4 5 6

Ø 131.5

0 2 3 4 5 6 7 8

0 10 20 30 U.S. g.p.m.

0 20 40 60 80 100 120

0 0.4 0.6 0.8 1 1.2 1.4 1.6 1.8 2 2.2

0

2

4

6

8

10

0

5

10

15

20

25

30

H ft

0

0.1

0.2

0.3

0

0.1

0.2

0.3

0.4

P H

P

0

2

4

6

8

0

5

10

15

20

25

NP

SH

ft

0 2 3 4 5 6 7 8

Ø 161.5

Ø 150

A

B

A

B A

A

Q m /h 3

l/min

l/s

H m

P

kW

N

PS

H m

Q m /h 3

Q m /h 3

l/min

l/s

H m

P

kW

N

PS

H m

Q m /h 3 72.071 72.072

NM4 25/12 NM4 25/160 45 50 54

56

η 57%

56

54

50

40

40

45

45

50

50

52

52 η 53.5%

NM4 25/200

0,2

0,4

0,6

0,8

l/minQ m /h3

Q m /h3

0 10050 200150 250

0 25 50U.S. g.p.m.

72.076N

40

10

0

20

30

0

5

10

15

20

25

0

5

10

15

1,02,03,04,05,06,07,0

A

B

C

0

20

40

60

80

ABC

2

4

6

8

A

B

C

Ø200

Ø194

Ø184

151050

1510500

P H

PH

ftN

PS

H ft

H m

P k

W (

%)

NP

SH

mη

Characteristic curves n ≈ 1450 rpm


0 2 4 6 8 10 12

0 10 20 30 40 50U.S. g.p.m.

0 50 100 150 200

0 1 2 3 3.6

2

4

6

8

10

10

20

30

H ft

0

0.1

0.2

0.3

0.4

0

0.1

0.2

0.3

0.4

0.5

P H

P

0

2

4

6

8

0

5

10

15

20

25

NP

SH

ft

H ft

P H

PN

PS

H ft

0 2 4 6 8 10 12

Ø 164

Ø 150

0 2 4 6 8 10 12 14

0 20 30 40 50 60U.S. g.p.m.

0 50 100 150 200

0 1 2 3 3.8

0

5

10

15

0

10

20

30

40

50

0

0.2

0.4

0.6

0.8

1.0

0

0.2

0.4

0.6

0.8

1.0

1.2

0

2

4

6

8

0

5

10

15

20

25

0 2 4 6 8 10 12 14

Ø 204

Ø 195

0 5 10 15 20

0 20 30 40 50 60 70 80 90U.S. g.p.m.

0 50 100 150 200 250 300 350

0 1 2 3 4 5 6

2

4

6

8

10

10

20

30

H ft

0

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0

0.2

0.4

0.6

0.8

P H

P

0

2

4

6

8

0

5

10

15

20

25

NP

SH

ft

0 5 10 15 20

Ø 163

Ø 153

Ø 143

0 5 10 15 20

0 20 30 40 50 60 70 80 90U.S. g.p.m.

0 50 100 150 200 250 300 350

0 1 2 3 4 5 6

4

6

8

10

12

14

16

18

20

30

40

50

0

0.2

0.4

0.6

0.8

1.0

0

1.0

1.6

0

2

4

6

8

0

5

10

15

20

25

0 5 10 15 20

1.2

Ø 204

Ø 195

H ft

P H

PN

PS

H ft

A

B

A

B

A

B

A

B

A

B

C

A

B

C

A

B

AB

Q m /h3

l/min

l/s

H m

P k

WN

PS

H m

Q m /h3

Q m /h3

l/min

l/s

H m

P k

WN

PS

H m

Q m /h372.074 72.075

Q m /h3

l/min

l/s

H m

P k

WN

PS

H m

Q m /h372.077

Q m /h3

l/min

l/s

H m

P k

WN

PS

H m

Q m /h372.076

NM4 32/16 NM4 32/20

NM4 40/16 NM4 40/20

50 55

55

58

58

60

60

62

62η 62%

35

35

40

40

45

45

48

48

50

50

52

52η 53%

55

55

60

60

64

64

66

66

67

η 67%40

40

50

50

54

54

56

56η 58%


P H

PH

ft

NP

SH

ft

H m

P k

W (

%)

NP

SH

mη η η

η η

NM4 40/16

0

0,2

0,4

0,6

0,8

l/min Q m /h 3

Q m /h 3

0 200 100 400 300 500

0 50 100 U.S. g.p.m.

72.076N

35

40

5

10

0

15

20

25

30

0

5

10

15

20

25

0

2

4

6

8

10

12

01,02,03,04,05,06,0

A

B

C

0

20

40

60

80

ABC

2

4

6

8

A

B

C

167Ø

151Ø

137Ø

3020100

30201000


η

P H

PH

ft

NP

SH

ft

H m

P k

W (

%)

NP

SH

mη

P H

PH

ft

NP

SH

ft

H m

P k

W (

%)

NP

SH

mη

P H

PH

ft

NP

SH

ft

H m

P k

W (

%)

NP

SH

mη

P H

PH

ft

NP

SH

ft

H m

P k

W (

%)

NP

SH

mη

NM4 40/25 NM4 50/16

NM4 50/20 NM4 50/25

l/min Q m /h 3 50 40 30 20 10 0

Q m /h 3 50 40 30 20 10 0

0 200 400 600 800

0 50 100 150 200 U.S. g.p.m.

l/min Q m /h 3 50 40 30 20 10 0

Q m /h 3 50 40 30 20 10 0

0 200 400 600 800

0 50 100 150 200 U.S. g.p.m.

l/min Q m /h 3 50 40 30 20 10 0

Q m /h 3 50 40 30 20 10 0

0 200 400 600 800

0 50 100 150 200 U.S. g.p.m.

l/min Q m /h 3

Q m /h 3

0 200 100 400 300 500

0 50 100 U.S. g.p.m.

0

2

1

3

4

0

1

0,5

1,5

2

0

1

0,5

1,5

22,5

0

2

1

3

45

72.076N 72.076N

72.076N 72.076N

35

40

5

10

0

15

20

25

30

35

40

45

50

5

10

0

15

20

25

30

70

80

10

20

0

30

40

50

60

70

80

10

20

0

30

40

50

60

0

5

10

15

20

25

0 510152025

0 510152025

0 510152025

0

5

10

15

20

25

3020100

3020100

0

1

2

3

0

20

40

60

A

BC

0

3

6

9

152 ØA742

ØB

722

ØC

A

CB

0

2

4

6

8

01

21

0

0,3

0,6

0,9

1,2

1,5

0

20

40

60

80

0

3

6

9

471 ØA

261 ØB

A

B

AB

0

2

4

6

8

01

21

41

61209 ØA

200 ØB

188 ØC

0

0,5

1

1,5

2A

BC

0

20

40

60

80

A

BC

0

2

4

6

8

0

5

10

15

20

25

0

1

2

3

4

A

BCD

0

20

40

6070

0

3

6

9

255 ØA

245 ØB

229 ØC

209 ØD

ABC

D



0 20 30 40 50 60 70 80 90

0 100 200 300 380U.S. g.p.m.

0 500 1000 1500

0 5 10 15 20 25

10

20

30

40

40

60

80

100

120

H ft

0

2

4

6

8

10

0

2

4

6

8

10

12

P H

P

0

1

2

3

4

0 2 4 6 81012

NP

SH

ft

0 20 30 40 50 60 70 80 90

Ø 321.5

Ø 302

Ø 278

P H

PH

ft

NP

SH

ft

H m

P k

W (

%)

NP

SH

mη

P H

PH

ft

NP

SH

ft

H m

P k

W (

%)

NP

SH

mη

P H

PH

ft

NP

SH

ft

H m

P k

W (

%)

NP

SH

mη

A

B

C

A

B

C

50

60

60

50

64

64

68

68

η 69%

Q m /h3

l/min

l/s

H m

P k

WN

PS

H m

Q m /h372.087

NM4 65/31

NM4 65/16

0

1

2

3

4

l/minQ m /h3

Q m /h3

0 600300 1200900 1500

0 150100 200 250 350300U.S. g.p.m.

72.082N

35

5

10

0

15

20

25

30

0

5

10

15

20

25

0

2

4

6

8

10

12

0

1

2

3

AB

C

S

0

20

40

60

80

A SBC

2

4

6

8

S

B

C

175Ø

A 165Ø

153Ø

143Ø

9060300

90603000

NM4 65/20

0

1

2

3

4

l/minQ m /h3

Q m /h3

0 500 15001000

0 150100 200 250 350 400300U.S. g.p.m.

72.082N

50

10

0

20

40

30

0

5

10

15

20

25

0

2

4

6

8

10

12

14

16

0

1

2

3 A

B

0

20

40

60

80A

B

2

4

6

8

A 206Ø

B 190Ø

10060400

10060

80

8040

20

2000

NM4 65/25

0

2

4

6

8

l/minQ m /h3

Q m /h3

0 500 15001000

0 150100 200 250 350 400300U.S. g.p.m.

72.082N

20

0

40

60

0

5

10

15

20

25

0

4

8

12

16

20

24

0

2

4

6A

B

0

20

40

60

80A

B

2

4

6

8

A 252Ø

B 230Ø

10060400

10060

80

8040

20

2000



P H

PH

ft

NP

SH

ft

H m

P k

W (

%)

NP

SH

mη

A

A

B

C

B

C

A

B

C

A

B

C

60 6570

7375

75

73

70

65

60

η 77%

60 65 70

70

73

73

75

75η 77%

Q m /h3

l/min

l/s

H m

P k

WN

PS

H m

Q m /h372.086

Q m /h3

l/min

l/s

H m

P k

WN

PS

H m

Q m /h372.088

NM4 80/20

NM4 80/25

0 20 40 60 80 100 120

0 100 200 300 400 500U.S. g.p.m.

0 500 1000 1500 2000

0 10 20 30

4

5

6

7

8

9

10

11

12

13

14

15

20

30

40

48

H ft

0

1

2

3

4

0

1

2

3

4

5

P H

P

0

2

4

6

8

0

5

10

15

20

25

NP

SH

ft

0 20 40 60 80 100 120

Ø 210

Ø 200

Ø 188

0 50 100 150

0 200 300 400 500 600U.S. g.p.m.

0 500 1000 1500 2000 2500

0 10 20 30 40

5

10

15

20

25

20

30

40

50

60

70

80

H ft

0

2

4

6

8

0

2

4

6

8

10

P H

P

0

2

4

6

8

0

5

10

15

20

25

NP

SH

ft

0 50 100 150

Ø 264

Ø 250

Ø 231

NM4 80/16

0

1

2

3

4

l/minQ m /h3

Q m /h3

0 800400 16001200 2000

0 200 400U.S. g.p.m.

72.085N

35

5

10

0

15

20

25

30

0

5

10

15

20

25

0

2

4

6

8

10

12

0

1

2

3

B

A

C

0

20

40

60

80ABC

2

4

6

8

A

B

C

176Ø

157Ø

144Ø

120804020 10060

20 10060

0

120804000



H m

Q m /h3

l/min

H m

P k

WN

PS

H m

Q m /h3

Q m /h3

l/min

P k

WN

PS

H m

Q m /h3

(%

)

40

50

60

70

800

4

8

12

16

20

0

2

4

6

810

10

20

30

40

44

0 50 100 150 180

0 50 100 150 180

NM4 80/315A

B

C

Ø 320

S

SA

BC

S

S

AB

C

C

Ø 331

Ø 295

Ø 277

(%

)

40

50

60

70

800

10

20

30

40

0

2

4

6

810

0 50 100 150 180

0 50 100 150 180

A

B

C

Ø 403

S

SA

BC

S

S

A

BC

C

Ø 403Ø 363

Ø 345

NM4 80/400

40

60

80

100

120

140

H ft

0

10

20

P H

P

0

10

20

30

0 200 300 400 500 600 700U.S. g.p.m.

0 500 1000 1500 2000 2500 3000

10

20

30

40

50

60

70

50

100

150

200

H ft

N

PS

H ft

0

20

40

P H

P

0

10

20

30

0 200 300 400 500 600 700U.S. g.p.m.

0 500 1000 1500 2000 2500 3000

N

PS

H ft



0 50 100 150 200

0 200 300 400 500 600 700 800U.S. g.p.m.

0 500 1000 1500 2000 2500 3000

0 10 20 30 40 50

0

5

10

15

0

10

20

30

40

50

H ft

0

1

2

3

4

5

6

0

2

4

6

8

P H

P

0

2

4

6

8

0

5

10

15

20

25

NP

SH

ft

0 50 100 150 200

Ø 219

Ø 202

Ø 185

0 50 100 150 200

0 200 300 400 500 600 700 800 900U.S. g.p.m.

0 1000 2000 3000

0 10 20 30 40 50 60

0

5

10

15

20

25

0

10

20

30

40

50

60

70

80

H ft

0

2

4

6

8

10

0

2

4

6

8

10

12

P H

P

0

2

4

6

8

0

5

10

15

20

25

NP

SH

ft

0 50 100 150 200

Ø 265

Ø 250

0 50 100 150 200

0 200 400 600 800U.S. g.p.m.

0 1000 2000 3000

0 10 20 30 40 50 60

10

20

30

40

40

60

80

100

120

H ft

0

10

20

0

5

10

15

20

25

P H

P

0

5

10

0

10

20

30

NP

SH

ft

0 50 100 150 200

Ø 328

Ø 306

Ø 286

0 50 100 150 200

0 200 400 600 800U.S. g.p.m.

0 1000 2000 3000

0 10 20 30 40 50 60

20

30

40

50

60

80

100

120

140

160

180

H ft

0

10

20

30

40

0

10

20

30

40

50

P H

P

0

2

4

6

8

0

5

10

15

20

25

NP

SH

ft

0 50 100 150 200

Ø 405

Ø 377

Ø 347

Q m /h3

l/min

l/s

H m

P k

WN

PS

H m

Q m /h372.091

Q m /h3

l/min

l/s

H m

P k

WN

PS

H m

Q m /h372.092

Q m /h3

l/min

l/s

H m

P k

WN

PS

H m

Q m /h372.094

Q m /h3

l/min

l/s

H m

P k

WN

PS

H m

Q m /h372.093

NM4 100/20 NM4 100/25

NM(S)4 100/315 NMS4 100/400

60

70

70

75

75

77

77

80η 80.5%

65 73

73

η 81%

77

80

75

77

70

75

65

70

60

65

55

80

60

65

65

70

70

73

73

75

75η 77%

55

60

60

64

6467

67

68

η 69%

A

B

C

A

BC

A

B

A

B

A

B

C

A

B

C

A

B

C

AB

C



0 100 200 300

0 400 600 800 1000 1200 1400U.S. g.p.m.

0 1000 2000 3000 4000 5000

0 20 40 60 80

0

5

10

15

20

25

0

20

40

60

80

H ft

0

10

18

0

10

20

P H

P

0

2

4

6

8

0

10

20

NP

SH

ft

0 100 200 300

Ø 271

Ø 252

Ø 237

Ø 220

Ø 203

0 100 200 300

0 400 600 800 1000 1200 1400U.S. g.p.m.

0 1000 2000 3000 4000 5000

0 20 40 60 80

0

10

20

30

40

0

20

40

60

80

100

120

H ft

0

10

20

30

0

10

20

30

40

P H

P

0

2

4

6

8

0

10

20

NP

SH

ft

0 100 200 300

Ø 330

Ø 310

Ø 295

0 50 100 150 200 250 300 350

0 U.S. g.p.m.

0 1000 2000 3000 4000 5000 5800

0 10 20 30 40 50 60 70 80 90

20

30

40

50

60

80

100

120

140

160

180

200

H ft

0

10

20

30

40

50

60

0

20

40

60

80

P H

P

0

2

4

6

8

0

10

20

NP

SH

ft

0 50 100 150 200 250 300 350

Ø 405

Ø 380

Ø 364

Q m /h3

l/min

l/s

H m

P k

WN

PS

H m

Q m /h372.095

Q m /h3

l/min

l/s

H m

P k

WN

PS

H m

Q m /h372.096

Q m /h3

l/min

l/s

H m

P k

WN

PS

H m

Q m /h372.097

NM(S)4 125/250 NMS4 125/315

NMS4 125/400

60

60

70

70

74

74

78

78

η 80%

60

60

70

70

74

74

78

78η 80%

500 1000 1500

60

60

65

66

70

70

73

73

75

75

η 76%

A

B

C

D

E

A

BC

DE

A

B

C

AB

C

A

B

C

A

BC



0 100 200 300 400 500

0 1000 2000U.S. g.p.m.

0 2000 3000 4000 5000 6000 7000 8000

0 20 40 60 80 100 120

0

10

20

30

40

0

20

40

60

80

100

120

H ft

0

10

20

30

40

0

10

20

30

40

50

P H

P

0

2

4

6

8

0

5

10

15

20

25

NP

SH

ft

0 100 200 300 400 500

Ø 278

Ø 290

Ø 310

Ø 330

0 100 200 300 400 500

0 500 1000 1500 2000U.S. g.p.m.

0 2000 3000 4000 5000 6000 7000 8000

0 20 40 60 80 100 120

10

20

30

40

50

60

50

100

150

200

H ft

0

20

40

60

80

0

50

100

P H

P

0

5

10

0

10

20

30

NP

SH

ft

0 100 200 300 400 500

60

Ø 415

Ø 390

Ø 370

60

60

65

65

70

70

75

75

80

80

η 82%

60 65

65

70

70

74

73

77

77

80

80η 81%

Q m /h3

l/min

l/s

H m

P k

WN

PS

H m

Q m /h372.098

Q m /h3

l/min

l/s

H m

P k

WN

PS

H m

Q m /h372.099

NMS4 150/315 NMS4 150/400A

B

CD

A

B

CD

A

BC

A

B

C



Dimensions and weights

NM4 Close Coupled Centrifugal Pumps

g1

mmNM4 kg

a fM h1 h2 H m1 m2 n1 n2 n3 w1 b s s1 l1 l2 w m4 m5

10 32,4-30,665 40 80 41039450

132 160 268 100 70 240 190 47 - 50 14 - 121 121 255

1235

50 32 80410

42450160 180 288 100 70 240 190 62 - 50 14 - 140 140 255

12 30,5-3050 32 80 410 132 160 260 100 70 240 190 47 - 50

b1

- 14 - 120 120 255

65 40 100 495 160 180 298 100 70 265 212 62 - 50 14 - 142 142 295 12 49,6-49

65 40 100495528

180 225308

340125 95 320 250 60 - 65 14 - 175 175

300279

1567,778-76,6

65 50 100 495 160 180 298 100 70 265 212 62 - 50 14 - 126 140 295 12 40-39,5

65 50 100505528

160 200 288320 100 70 265 2126260

- 50 14 - 140 153310279

1452,5-44,557

65 50 100 528 180 225 340 125 95 320 250 60 - 65 14 - 175 175 279 156885,5-78

80 65 100495528

160 200288320

125 95 280 2126260

- 65 14 - 140 161300279

1253-49,3-48,762,3

80 65 100 528 180 225 340 125 95 320 250 60 - 65 14 - 159 178 279 12 69-68,7

80 65 100543645

200 250 360385

160 120 360 280 60 - 80 18 - 179 195294405

1597,4118

80 65 125670720

225 280 410 160 120 400 315 75 - 80 18 - 220 220415465

20153-164176

100 80 125520553

180 225308340

125 95 320 2506260

- 65 14 - 153 181300279

1259,6-55,669,8

100 80 125 563 180 250 340 125 95 345 280 60 - 65 14 - 170 194 289 15 91-82-74,5

100 80 125563

200 280 360385 160 120 400 315 60 - 80 18

- 191 210289415 20

102670 124-135

100 80 125 720 250 315 435 160 120 400 315 90 - 80 18 - 222 234 465 17 181100 80 125 787 260 315 466 160 120 400 315 - 20 80 18 222 234 147 - 269-248

125 100 140 802 260 315 466 160 120 400 315 - 20 80 18 230 250 147 - 280-261

150 125 140 802 260 355 466 160 120 400 315 - 20 80 18

74 14

74 14

74 14 235 268 147 -

g2n5

254 6

254 6

254 6 261-243

125 100 125563665

200 280 360385

160 120 360 280 60 - 80 18 - 180 212289400

2099-90109

125 100 140 685 225 280 410 160 120 400 315 75 - 80 18 - 205 233 415 20 143735 465 152

150 125 140685735

250 355 435 160 120 400 315 90 -

-

-

-

-

-

-

-

-

-

-

-

-

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-435

435

435

-

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h4

-

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-10

10

10

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-395

395

395

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-80 18 -

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- 235 268415465

20149-161173

2

3

2

2

3

3

DN2DN1

NM4 40/16B/A-C/ANM4 40/16A/C

NM4 32/20BENM4 32/20A/B

NM4 32/16AE-BE

NM4 40/20A/B-B/B

NM4 40/25C/CNM4 40/25A/B-B/C

NM4 50/16A/C-B/C

NM4 50/20B/C-C/CNM4 50/20A/C

NM4 50/25C/C-D/BNM4 50/25A/B-B/B

NM4 65/16A/C-B/C-C/CNM4 65/16S/A

NM4 65/20A/B-B/C

NM4 65/25B/CNM4 65/25A/B

NM4 65/31C/B-B/BNM4 65/31A/B

NM4 80/16B/C-C/BNM4 80/16A/C

NM4 80/20A/A-B/A-C/B

NM4 80/25C/ANM4 80/25B/B-A/BNM4 80/31C/BNM4 80/31A-B

NM4 100/31B-C

NM4 125/25A-B

NM4 100/20B/A-C/ANM4 100/20A/C

NM4 100/25B/BNM4 100/25A/B

NM4 125/25E/B-D/BNM4 125/25C/B

Standard construction

2

Picture

4.93.061.2

l1

w

m1

m2

DN2DN2

a

fM

DN

1

H

l2

n3

n2

s b

g1 h1

h2

n1

3

aDN2

DN

1

m1m2

n1

b1

g2

h4

h1

h2

DN2

l1 l2

n2 n5

bs s1

A

g2*

A

4.93.078.1

fM

m4

m5

H

w1w

4.93.098

a

m1

m2

w

h1

h2

n1

n2

s b

DN2DN2

n3

l2l1

g1D

N1

fM

H

1


DN1g

DN1 DN2

ISO 228

NM4 kgmm

Picture

a fM h1 h2 H m1 m2 n1 n2 n3 b s l1 l2 w

11 23-21,51

NM4 25/200B/A-C/AG 11/2 G 1

63 385 125 180 253 45 32,5 245 200 49 45 11,5 125 125 25011 27NM4 25/200A/C 63 425 125 180 253 45 32,5 245 200 49 45 11,5 125 125 250

10 17,5NM4 25/160AE-BE 56 380 100 160 228 37,5 27,5 190 150 30 38 9,5 102 102 25010 13,5NM4 25/12A/A 56 313 90 140 199 37,5 27,5 170 130 9 38 9,5 85 88 250



n2

s b

n1

n3

l2l1

h2

h1g1

a

DN2

DN

1

m1

m2

w

fM

H

4.93.083.1

AG

190

190

190

190

190

190

190210

210

190

210

210

210281

281281

210

210281

210

281

281281

AS

105

105

105

105

105210 118

105

105118

118

105

118190 105

118

210 118

118153

153153

190 105

118

118153

118281 153

281 153281 153350 190

153

153153

281350

153190

281350

153190

g1

mmNM4 EI kg

a fM h1 h2 H m1 m2 n1 n2 n3 w1 b s s1 l1 l2 w m4 m5

1065 40 80 440450

132 160 418 100 70 240 190 47 - 50 14 - 121 121 255

1250 32 80440450

160 180 466 100 70 240 190 62 - 50 14 - 140 140 255

1250 32 80 440 132 160 418 100 70 240 190 47 - 50

b1

- 14 - 120 120 255

65 40 100 495 160 180 547 100 70 265 212 62 - 50 14 - 142 142 295 12

65 40 100495528

180 225474

502125 95 320 250 60 - 65 14 - 175 175

300279

15

65 50 100 495 160 180 454 100 70 265 212 62 - 50 14 - 126 140 295 12

65 50 100505528

160 200 454482 100 70 265 2126260

- 50 14 - 140 153310279

14

65 50 100 528 180 225 502 125 95 320 250 60 - 65 14 - 175 175 279 15

80 65 100495

528160 200

454

528125 95 280 212

62

60- 65 14 - 140 161

300495 454 62 300

27915

80 65 100 528 180 225 502 125 95 320 250 60 - 65 14 - 159 179 279 12

80 65 100543645

200 250 522593

160 120 360 280 60 - 80 18 - 179 195294405

15

80 65 125670720

225 280 618 160 120 400 315 75 - 80 18 - 220 220415465

20

100 80 125520553

180 225454545

125 95 320 2506260

- 65 14 - 153 181300279

12

100 80 125 563 180 250 502 125 95 345 280 60 - 65 14 - 170 194 289 15

100 80 125563

200 280 522593 160 120 400 315 60 - 80 18

- 191 210289415 20670

100 80 125 745 250 315 613 160 120 400 315 90 - 80 18 - 222 234 465 17

100 80 125 790 751671

160 120 400 315 - 20 80 18 222 234 147 -260 315

125 100 140 805 260 315 160 120 400 315 - 20 80 18 230 250 147 -

150 125 140 805 260 355751671

751671

160 120 400 315 - 20 80 18

74 14

74 14

74 14 235 268 147 -

g2n5

254 6

254 6

254 6

125 100 125563665

200 280 522593

160 120 360 280 60 - 80 18 - 180 212289400

20

125 100 140 685 225 280 618 160 120 400 315 75 - 80 18 - 205 233 415 20735 465

150 125 140685735

250 355 643 160 120 400 315 90 -

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

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-

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-

-

-

-

-

-

-

-

-

435

435

435

-

-

-

h4

-

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-

-

-

-

-

-

-

-

-

-

-

-

-

-

10

10

10

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

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-

-

395

395

395

-

-

-80 18 -

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-

-

-

-

-

-

-

-

-

-

-

- 235 268415465

20

1

2

1

1

2

2

DN2DN1

NM4 EI 40/16B/A-C/ANM4 EI 40/16A/C

NM4 EI 32/20BENM4 EI 32/20A/B

NM4 EI 32/16AE-BE

NM4 EI 40/20A/B-B/B

NM4 EI 40/25C/CNM4 EI 40/25A/B-B/C

NM4 EI 50/16A/C-B/C

NM4 EI 50/20B/C-C/CNM4 EI 50/20A/C

NM4 EI 50/25C/C-D/BNM4 EI 50/25A/B-B/B

NM4 EI 65/16B/C-C/CNM4 EI 65/16A/CNM4 EI 65/16S/A

NM4 EI 65/20A/B-B/C

NM4 EI 65/25B/CNM4 EI 65/25A/B

NM4 EI 65/31C/B-B/BNM4 EI 65/31A/B

NM4 EI 80/16B/C-C/BNM4 EI 80/16A/C

NM4 EI 80/20A/A-B/A-C/B

NM4 EI 80/25C/ANM4 EI 80/25B/B-A/BNM4 EI 80/31C/B

NM4 EI 80/31ANM4 EI 80/31B

NM4 EI 100/31BNM4 EI 100/31C

NM4 EI 125/25BNM4 EI 125/25A

NM4 EI 100/20B/A-C/ANM4 EI 100/20A/C

NM4 EI 100/25B/BNM4 EI 100/25A/B

NM4 EI 125/25E/B-D/BNM4 EI 125/25C/B

37-36,440,948,438,4-36,445,457,4-56,97485,5-8546,4-46

59-5163,474,4-74,493,0-85,554,4-54,460,961,4

81 -67,4

104,5130,8

179-168190,867,4-59,471,9 99-90-81

109,5150-139195,8283304107-97,5123,8166,8157,8

296315

164-176187,8

378

296

ASAG

aDN2

m1m2

n1

b1

g2

h4

h1

h2

l1 l2

n2 n5

bs s1

A

g2*

A

4.93.078.2

fM

m4

m5

H

w1w

DN

1

ASAG

1

Picture


NMS4 Close Coupled Centrifugal Pumps

6666866686668886668886

432520520540540432520540540520520540540540540520520540540540540625

382435435455460382435455460435435455461461461435435455460461461535

312318318334380312318334385318318334410410454318318334385410454482

15151519191515191915151919192415151919192424

70707083

103707083

103707083

103103100707083

103103100100

25252525552525255525252525252525252555252545

279279279318356279279318356279279318356356406279279318356356406457

536566566595618536566595618566566595653653725566566595618653725748

968973

100310511118983

101810661138988

101810661138119812371008103810861158121812571330

100125125125125125125125125150150150150150150200200200200200200200

8080808080

100100100100125125125125125125150150150150150150150

18181818181822222222222222222222222222222222

808080808080

100100100100100100100100100100100100100100100100

315355355355355315400400400400400400400400400450450450450450450450

400435435435435400500500500500500500500500500550550550550550550550

120120120120120120150150150150150150150150150150150150150150150150

160160160160160160200200200200200200200200200200200200200200200200

315355355355355315355355355355355355400400400400400400400450450450

250280280280280250280280280280280280315315315280280280280315315315

222268268268268230268268268247247247280280280260260260260295295295

234269269269269250280280280278278278305305305298298298298328328328

125125125125125140140140140140140140140140140160160160160160160160

a fM h1 h2 H m1 m2 n1 n2 n5 w1 b b1 s s1 l1 l2 w m4 m5 g2

mmkg

4

DN1 DN2

339355413490308366419506331350409524574665349374421501594681845

NMS4 80/315SNMS4 80/400C/BNMS4 80/400B/BNMS4 80/400A/BNMS4 80/400SNMS4 100/315A/ANMS4 100/400C/ANMS4 100/400B/ANMS4 100/400A/ANMS4 125/315C/ANMS4 125/315B/ANMS4 125/315A/ANMS4 125/400C/ANMS4 125/400B/ANMS4 125/400A/ANMS4 150/315D/ANMS4 150/315C/ANMS4 150/315B/ANMS4 150/315A/ANMS4 150/400C/ANMS4 150/400B/ANMS4 150/400A/A

NMS4

4


Flanges EN 1092-2

Holes

Picture

n1

b1

g2

h1

h2

H

4.93.466.1

fMa

DN2D

N1

w1m5w

A

m1m2

m4

DN2

l1 l2

n2 n5b

s s1

A

DN

DE

W

DG

DK

4.93.094

DN DG DK DE

N°

W

32 76 100 140 4 19 18

40 84 110 150 4 19 18

50 99 125 165 4 19 20

65 118 145 185 4 19 20

80 132 160 200 8 19 22

mm

100 156 180 220 8 19 24

125 184 210 250 8 19 24

150 211 240 285 8 23 26

200 266 295 340 8 23 30

DN1g

DN1 DN2

ISO 228

10

B-NM4

B-NM4 25/160AE-BE

mmPicture

56 380 100 160 228 37,5 27,5 190 150 30 38 9,5

a fM h1 h2 H m1 m2 n1 n2 n3 b s l1 l2 w

102 102 250111 B-NM4 25/200B/A-C/A G 11/2 G 1 63 400 125 180 253 45 32,5 245 200 49 45 11,5 125 125 250

19-19

kg

25-2311B-NM4 25/200A/C 63 440 125 180 253 45 32,5 245 200 49 45 11,5 125 125 250 29


B-NM4 Close Coupled Centrifugal Pumps

32

80 65 100 528 180 225 340 125 95 320 250 60 - 65 14 - 159 179 279 12 -

80 65 100 540 200 250 360 160 120 360 280 60 - 80 18 - 179 195 345 15 109128

80 65 125670720

225 280 410 160 120 400 315 75 - 80 18 - 220 220415465

20170-..-

100 80 125 560 180 250 340 125 95 345 280 60 - 65 14 - 170 194 340 15 97,2-89,7-..

100 80 125 565 200 280 360 160 120 400 315 60 - 80 18 - 191 210 335 20 115100 80 125 720 250 315 435 160 120 400 315 90 - 80 18 - 222 234 465 17 -

125 100 125565665

200 280 360385

160 120 360 280 60 - 80 18 - 180 212330400

20109-103129

-

-

-

---

-

-

-

-

---

-

-

-

-

---

-

-

-

-

---

-

-

-

-

---

-

-

-

-

---

-

B-NM4 65/20A/A-B/A

B-NM4 65/25B/B645 385 405B-NM4 65/25A/C

B-NM4 65/31C/B-B/BB-NM4 65/31A/B

B-NM4 80/20A-B-C

B-NM4 80/25C/AB-NM4 80/31CB-NM4 100/20B/A-C/AB-NM4 100/20A/C

g1

mm

12

B-NM4

B-NM4 32/16A-B 50 32 80 410 132 160 260 100 70 240 190 47 - 50 14 -

a fM h1 h2 H m1 m2 n1 n2 n3 w1 b b1 s s1 l1 l2 w

120 120 255 38-38

kg

4112B-NM4 32/20B 50 32 80 41045B-NM4 32/20A/A 450

160 180 288 100 70 240 190 62 - 50 14 - 140 140 255

36,6-34,710

B-NM4 40/16B-C65 40 80

41043B-NM4 40/16A/B 450 132 160 260 100 70 240 190 47 - 50 14 - 121 121 255

55-5512

2

B-NM4 40/20A/B-B/B 65 40 100 495 160 180 298 100 70 265 212 62 - 50 14 - 142 142 295

7389-73

-3B-NM4 4025/C/CB-NM4 4025/A/B-B/C

65 40 100535560

190 225318350

125 95 320 250 15 65 14 175 175156125

55-55122 B-NM4 50/16A/B-B/B 65 50 100 495 160 180 298 100 70 265 212 62 - 50 14 - 126 140 295

79,5105-92

-3B-NM4 5025/C/C-D/BB-NM4 5025/A/B-B/B

65 50 100 560 190 225 350

--

-

n5

140190

190125 95

205280

175250

280 250320 250 15 65 14

5460

1012

60 12 175 175 125

60-57-6669,8

12

2

B-NM4 65/16A/C-B/C-C/CB-NM4 65/16S/A

80 65 100495528

160 200306320

125 95 280 2126260

- 65 14 -

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

-

- 140 161300279

DN2DN1 m4 m5

10

10

-

-

-

-

-

-

h4 g2

6

6

fM

a

DN2

DN

1

m1

H

m2

w

4.93.083.1

n2

s b

n1

n3

DN2

l2 l1

h2

h1 g1

aDN2

DN

1

m1m2

n1

b1

g2

h4

h1

h2

DN2

l1 l2

n2 n5

bs s1

A

g2*

A

4.93.078.1

fM

m4

m5

H

w1w

Picture

4.93.098

a

m1

m2

w

h1

h2

n1

n2

s b

DN2DN2

n3

l2l1

g1

DN

1

fM

H

1

Bronze construction B-NM4


B-NMS4

BNMS4 80/250A/A-B/ABNMS4 80/315B/BBNMS4 80/315A/BBNMS4 80/315SBNMS4 80/400C/BBNMS4 80/400B/BBNMS4 80/400A/BBNMS4 80/400SBNMS4 100/250B/ABNMS4 100/250A/ABNMS4 100/315C/ABNMS4 100/315B/ABNMS4 100/315A/ABNMS4 100/400C/ABNMS4 100/400B/ABNMS4 100/400A/ABNMS4 125/250D/A-E/ABNMS4 125/250C/ABNMS4 125/250B/ABNMS4 125/250A/ABNMS4 125/315C/ABNMS4 125/315B/ABNMS4 125/315A/ABNMS4 125/400C/ABNMS4 125/400B/ABNMS4 125/400A/ABNMS4 150/315DBNMS4 150/315C/ABNMS4 150/315B/ABNMS4 150/315A/ABNMS4 150/400C/ABNMS4 150/400B/ABNMS4 150/400A/A

666666686666666866666668886668886

181-171

192206284300

265273383395

380395467544

298435435432520520540540298298435435432520540540298298435435520520540540540540520520540540540540625

258395395382435435455460258258395395382435455460258258395395435435455461461461435435455460461461535

322271271312318318334380322322274274312318334385322322259259318318334410410454318318334385410454482

121515151515191912121515151519191212151515151919192415151919192424

696060707070831036969606070708310369696060707083103103100707083103103100100

202020252525255520202020252525552020202025252525252525252555252545

216254254279279279318356216216254254279279318356216216254254279279318356356406279279318356356406457

387457457536566566595618412412457457536566595618437437457457566566595653653725566566595618653725748

807948948968973100310511118822872966966983101810661138822872951951988101810661138119812371008103810861158121812571330

100100100100125125125125125125125125125125125125150150150150150150150150150150200200200200200200200

8080808080808080

100100100100100100100100125125125125125125125125125125150150150150150150150

8080808080808080808080808010010010080808080100100100100100100100100100100100100100

315315315315355355355355315315315315315400400400315315315315400400400400400400450450450450450450450

400400400400435435435435400400400400400500500500400400400400500500500500500500550550550550550550550

120120120120120120120120120120120120120150150150120120120120150150150150150150150150150150150150150

160160160160160160160160160160160160160200200200160160160160200200200200200200200200200200200200200

280315315315355355355355280280315315315355355355355355355355355355355400400400400400400400450450450

200250250250280280280280225225250250250280280280250250250250280280280315315315280280280280315315315

191222222222268268268268205205230230230268268268235235235235247247247280280280260260260260295295295

210234234234269269269269233233250250250280280280268268268268278278278305305305298298298298328328328

125125125125125125125125140140140140140140140140140140140140140140140140140140160160160160160160160

a fM h1 h2 H m1 m2 n1 n2 n5 w1 b b1 s s1 l1 l2 w m4 m5 g2

mmkg

4

DN1 DN2

181818181818181818181818182222221818181822222222222222222222222222



B-NMS4 Close Coupled Centrifugal Pumps

Picture

4

n1

b1

g2

h1

h2

H

4.93.466.1

fMa

DN2

DN

1

w1m5w

A

m1m2

m4

DN2

l1 l2

n2 n5b

s s1

A

Features

Cutting edge hydraulicsThe geometry of the impeller and the pump casing are optimized to achieve maximum efficiencyand the best suction capability.

FlexibleThe option to choose between cast iron and bronze materias for the hydraulic parts in contactwith the pumped liquid allows NM4 series pumps to be selected for use with different types ofliquids.

Compact DesignThe compact design allows for easy installtion even in confined spaces.

Exclusive designAn innovative, patented guard prevents contact with rotating parts, proving protection to the enduser whilst allowing for inspection of the mechanical seal.

ReliableThe bearing and shaft are designed to ensure the reduction of the stress, providing high reliabi-lity under all operating conditions.


Features

Cutting edge hydraulicsThe geometry of the impeller and the pump casing are optimized to achieve maximum efficiency andthe best suction capability.

FlexibilityThe option to choose between cast iron and bronze materias for the hydraulic parts in contact withthe pumped liquid allows NMS4 series pumps to be selected for use with different types of liquids.

New lantern bracket constructionThe lantern brackets incorporate a thrust bearing on the hydraulic side which guarantees the elimina-tion of additional loads on the motor bearings. The flange is sized to be used with standard motorsB35.

Exclusive designAn innovative, patented guard prevents contact with rotating parts, proving protection to the end userwhilst allowing for inspection of the mechanical seal.

Simplified motor maintenanceThe presence of the thrust bearing on the hydraulic side makes it easier to remove the motor, facilita-ting maintenance operations and eliminating the risks of damage to the hydraulic parts.

NMS4 Close Coupled Centrifugal Pumps

[email protected] Tel. [email protected] Tel. +31-152-610-900www.lenntech.com Fax. +31-152-616-289

NM4, NMS4

nm4, nms4 - lenntech · 41 nm4, nms4 the electropumps nm4, b-nm4, nms4, b-nms4 series comply with...

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