NR(D)(EI), NR(D)4(EI)

Campo di Applicazione n ≈ 2900 1/min

25

0 U.S.g.p.m.

100

150

200

250

300

350

80

40

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

150

200

250

300

350

400

A ∅130

NRD 50/125

A∅162

70

NRD 50/160

120

20

C ∅123

60

30

100

B∅144

m

15

F ∅110

50

H

80

m

C∅137

H

40

20

60

10

t

f

t

f

30

H

H

40

20

10

5

10

20

0

0

0

0

0Qm

3

/h

20

30

40

50

60

70

80

0Qm

3

/h

20

30

40

50

60

70

80

90

100

5

0 Q l/min

400

600

800

1000

1200

0 Q l/min

400

600

800

1000 1200 1400

1600

12

4

A

6

5

8

A

10

3

C

4

6

B

8

W

k

P

H

W

k

P

H

2

A

F

3

4

C

6

P

P

P

P

1

F

C

2

1

2

C

B

A

4

2

0

0

0

0

80

80

60

60

%

%

F

C

A

40

F

C

A

40

A

C

B

A

η

η

20

2

0

CB

0

0

10

A

30

14

A

8

12

40

m

t

m

t

6

20

A

10

f

f

H

H

S

H

S

H

F

C

8

P

P

4

A

20

S

S

P

P

6

N

F

10

C

2

N

N

N

4

2

0

0

0

0

0Qm

3

/h

20

30

40

50

60

70

80

0Qm

3

/h

20

30

40

50

60

70

80

90

100

30

0

U.S.g.p.m.

200

300

400

500

40

0

U.S.g.p.m.

200

300

400

500

A ∅172

90

A ∅146

NRD 65/160

120

NRD 65/125

80

B ∅160

30

100

D ∅133

70

20

m

60

F ∅120

H

80

m

50

20

H

60

40

t

f

t

f

10

H

H

30

40

10

20

20

10

0

0

0 Qm

3

/h20

40

60

80

100

120

0

0 Qm

3

/h20

40

60

80

100

120

0

0 Q l/min

400

800

1200

1600

2000

16

0 Ql/min 400

800

1200

1600

2000

20

12

8

6

A

1

8

0

12

B

A

16

k

H

k

H

W

P

W

P

D

12

P

P

4

F

6

8

A

A

8

P

P

2

F

D

4

2

4

B

4

0

0

0

0

80

80

60

A

D

A

60

A

%

%

40

4

0

B

η

η

20

F

D

F

20

0

0

12

A

12

A

10

m

m

8

8

F

30

10

B

30

t

f

t

f

H

H

S

S

6

2

0

6

A

H

H

A

B

20

P

S

P

S

F

N

N

N

N

4

4

P

P

10

2

1

0

2

0

0

0 Qm

3

/h20

40

60

80

100

120

0

0

0 Qm

3

/h20

40

60

80

100

120

A

B

108