N4

Pompe centrifughe ad aspirazione assiale

normalizzate EN 733

12

10

8

6

4

2

16

35

14

30

12

25

10

2

0

8

1

5

6

50

40

30

20

10

0

U.S. g.p.m.

200

400

0

U.S. g.p.m.

200

300

400

500

600

10

4

5

2

0

0

0

0

0

3

20

40

60

80

100

120

0

3

20

40

60

80

100

120

140

Q m /h

Q m /h

3

0

l/min

400

800

1200

1600

2000

6

0 l/min

500

1000

1500

2000

4

8

2

3

4

6

2

4

1

1

2

2

0

0

0

0

80

80

60

60

40

40

20

20

0

0

8

2

5

10

30

6

2

0

8

25

4

2

0

3

0

Qm/h

1

5

6

20

1

0

4

15

10

5

2

5

20

40

60

80

100

72.085N

120

600

0

0

Q

3

20

40

0

m/h

60

80

0

100

120

72.085N

140

0 U.S. g.p.m.

200

300

400

500

25

20

15

10

5

0

l/s

10

20

30

40

8

80

70

60

50

40

30

20

0

Qm

3

/h

50

100

150

0

l/min

500

1000

1500

2000

2500

10

6

8

4

2

6

4

2

0

0

8

4

2

25

6

20

0

0

0Qm

3

/h

50

100

72.088

150

15

10

5

79

Curve caratteristiche n ≈ 1450 1/min

A Ø 176

N4 80-160

B

Ø 157

C

Ø 144

A Ø 205

N4 80/200

B Ø 188

C Ø 165

A

B

C

A

B

C

C

B

A

A

B

C

C

A

A Ø 264

6065

70

73

75

N4 80-250

B Ø 250

75

C Ø 231

h 77%

73

70

A

B

C

N

P

S

H

m

P

k

W

H

m

N

P

S

H

m

η

(

%

)

P

k

W

H

m

N

P

S

H

f

t

P

H

P

H

f

t

N

P

S

H

f

t

N

P

S

H

m

η

(

%

)

P

H

P

P

k

W

H

f

t

H

m

N

P

S

H

f

t

P

H

P

H

f

t