NM4, NMS

4

Characteristic curves n ≈ 1450 rp

m

0

200

400

U.S. g.p.m

.

A Ø 176

NM(S)4 80/1

6

B Ø 157

C Ø 144

P

k

W

H

m

A

B

C

C

B

A

N

P

S

H

m

η

η

(

%

)

N

P

S

H

m

P

k

W

H

m

12

35

10

30

8

25

6

20

15

4

10

2

5

0

0

0

Q m /h

3

40

60

80

20

100

120

l/min

0

80

0

400

1600

1200

200

0

3

4

3

2

2

1

1

0

0

80

60

40

20

0

8

25

6

20

15

4

10

2

5

0

0

0

Q m /h

3

40

60

80

20

100

72.085N

120

0

200

300

400

500

60

0

U.S. g.p.m

.

25

A Ø 264

60 65 7

0

8

0

73

7

5

NM(S)4 80/25

B Ø 250

7

0

20

7

5

6

0

h 77%

C Ø 231

7

3

7

0

15

5

0

4

0

10

3

0

2

0

5

0

50

100

150

Q m /h

3

l/mi

n

0

500

1000

1500

2000

250

0

l/s

0

10

20

30

40

8

10

A

6

8

B

6

4

C

4

2

2

0

0

8

25

6

20

15

4

10

2

5

0

0

72.088

0

50

100

150

Q m /h

3

P

H

P

H

f

t

N

P

S

H

f

t

N

P

S

H

f

t

P

H

P

H

f

t

H

m

N

P

S

H

m

η

η

(

%

)

P

k

W

16

14

12

10

6

8

4

2

0

6

4

2

0

60

40

20

0

10

8

6

4

2

0

NM(S)4 80/20

80

A

0

200

300

400

500

60

0

U.S. g.p.m.

A Ø 205

B Ø 188

C Ø 165

0

20

40

60

80

100

120

14

0

Q m /h

3

l/min

0

500

1000

1500

2000

A

B

C

B

C

C

A

0

20

40

60

80

100

120

14

0

Q m /h

3

72.085

N

5

0

4

0

3

0

2

0

1

0

0

8

6

4

2

0

30

25

20

15

10

5

0

6

8

H

f

t

P

H

P

N

P

S

H

f

t