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

Campo di Applicazione n ≈ 2900 1/min

25

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

50

75

100

35

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

50

75

100

A ∅130

A ∅160

NR 40/125

80

NR 40/160

110

20

B ∅122

70

30

100

60

B ∅143

90

C∅112

25

80

15

50

70

m

m

40

20

H

H

t

f

t

f

60

10

30

H

H

15

50

20

40

5

10

10

30

20

0

0

5

0Qm

3

/h

5

10

15

20

25

0Qm

3

/h

5

10

15

20

25

2

0 Ql/min

100

200

300

400

3

0 Ql/min

100

200

300

400

4

1,5

A

2

A

3

W

P

P

B

2

k

H

k

1

W

B

2

P

P

P

H

C

1

1

0,5

P

1

0

0

0

0

80

80

70

70

%

%

60

60

η

η

50

50

40

40

30

8

8

A

B

m

6

20

20

H

t

f

H

H

t

f

m

6

S

S

H

4

4

P

S

P

P

S

10

N

N

N

P

N

10

2

2

0

0 Q m

3

/h

5

10

15

20

25

0

0

0 Q m

3

/h

5

10

15

20

25

0

60

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

50

75

100

180

A ∅196

NR 40/200

50

160

B ∅178

140

40

120

m

H

t

f

30

100

H

80

20

60

40

10

0 Q m

3

/h

5

10

15

20

25

4

0 Q l/min

100

200

300

400

A

3

B

4

W

P

k

P

H

2

2

P

1

0

0

80

%

η

A

B

70

60

50

40

30

8

m

6

20

H

t

f

H

S

P

S

4

10

N

P

N

2

0

0 Q m

3

/h

5

10

15

20

25

0

99