ed. 09/202

6

NR, NRS

Campo di Applicazione n ≈ 1450 1/mi

n

0

50

100

150

20

0

U.S.g.p.m

.

0

U.S.g.p.m

.

100

150

200

250

300

350

10

9

8

7

6

H

m

5

4

3

2

1

0

1,

4

1,

2

1

P

k

W

0,

8

0,

6

0,

4

0,

2

0

80

60

%

N

P

S

H

m

η

η

40

20

0

5

4

3

2

1

0

10

9

8

7

6

H

m

5

4

3

2

1

0

2

1,

6

P

k

W

1,

2

0,

8

0,

4

0

80

60

%

N

P

S

H

m

η

η

40

20

0

5

4

3

2

1

0

NRD4 50/16

0

A

C

P

H

P

C

A

B

C

C

B

A

A

A

C

C

8

30

A ∅ 16

7

7

B ∅ 15

1

25

6

C ∅ 13

7

20

5

15

H

f

t

H

m

4

3

10

2

5

1

0

0

0

Q m /h

3

10

20

30

40

5

0

Q l/min

0

0

200

400

600

80

0

1,

6

1,

2

B

A

0,

8

B

0,

4

0

15

10

5

0

0

10

20

30

40

50

Q m /h

3

0

U.S.g.p.m.

100

150

200

250

300

35

0

3

0

2

5

2

0

1

5

1

0

5

0

2,

4

1,

6

0,

8

0

15

N

P

S

H

f

t

P

H

P

H

f

t

10

5

N

P

S

H

f

t

0

P

k

W

1,

4

1,

2

1

0,

8

0,

6

0,

4

0,

2

0

8

0

6

0

%

N

P

S

H

m

η

η

4

0

2

0

0

10

8

6

4

2

0

NRD4 65/125

A ∅ 14

6

D ∅ 136

F ∅ 124

Q m /h

3

Q l/min

20

30

40

50

60

70

8

0

400

600

800

1000

1200

A

D

F

A

D

F

25

20

15

10

5

0

1,6

1,2

0,8

0,4

0

P

H

P

H

f

t

F

D

A

F

D

A

A

F

F

A

3

0

2

0

1

0

0

N

P

S

H

f

t

0

20

30

40

50

60

70

80

Q m /h

3

A ∅ 17

4

NRD4 65/16

0

B ∅ 16

2

Q m /h

3

Q l/min

20

30

40

50

60

70

8

0

400

600

800

1000

120

0

A

B

B

A

B

A

B

A

A

B

A

B

0

20

30

40

50

60

70

80

Q m /h

3

197