Material
OSNA®-10 – copper-nickel-iron

Type and Construction
Concentric reducers up to and including 368 mm are normally supplied as one-piece and seamless.
Eccentric reducers up to and including 368 mm are normally supplied as one-piece and seamless.

Size

Wall Thickness

Length

Theoretical Weight

DN

OD1 OD2

S1 S2

L

 

 

inch

mm

mm

mm

mm

kg per piece

½ x ³/8

16 x 12

20 x 16

1 x 1

30

0.02

¾ x ³/8

20 x 12

25 x 16

1.5 x 1

30

0.02

¾ x ½

20 x 16

25 x 20

1.5 x 1

30

0.02

1 x ³/8

25 x 12

30 x 16

1.5 x 1

35

0.03

1 x ½

25 x 16

30 x 20

1.5 x 1

35

0.03

1 x ¾

25 x 20

30 x 25

1.5 x 1.5

35

0.04

1¼ x ³/8

32 x 12

38 x 16

1.5 x 1

50

0.04

1¼ x ½

32 x 16

38 x 20

1.5 x 1

50

0.04

1¼ x ¾

32 x 20

38 x 25

1.5 x 1.5

50

0.04

1¼ x 1

32 x 25

38 x 30

1.5 x 1.5

50

0.05

1½ x ½

40 x 16

44.5 x 20

1.5 x 1

80

0.05

1½ x ¾

40 x 20

44.5 x 25

1.5 x 1.5

80

0.06

1½ x 1

40 x 25

44.5 x 30

1.5 x 1.5

80

0.07

1½ x 1¼

40 x 32

44.5 x 38

1.5 x 1.5

80

0.08

2 x ¾

50 x 20

57 x 25

1.5 x 1.5

80

0.11

2 x 1

50 x 25

57 x 30

1.5 x 1.5

80

0.12

2 x 1¼

50 x 32

57 x 38

1.5 x 1.5

80

0.14

2 x 1½

50 x 40

57 x 44.5

1.5 x 1.5

80

0.16

2½ x 1

65 x 25

76 x 30

2 x 1.5

90

0.25

2½ x 1¼

65 x 32

76 x 38

2 x 1.5

90

0.27

2½ x 1½

65 x 40

76 x 44.5

2 x 1.5

90

0.30

2½ x 2

65 x 50

76 x 57

2 x 1.5

90

0.33

3 x 1¼

80 x 32

89 x 38

2 x 1.5

90

0.46

3 x 1½

80 x 40

89 x 44.5

2 x 1.5

90

0.48

3 x 2

80 x 50

89 x 57

2 x 1.5

90

0.49

3 x 2½

80 x 65

89 x 76

2 x 2

90

0.51

4 x 1½

100 x 40

108 x 44.5

2.5 x 1.5

100

0.58

4 x 2

100 x 50

108 x 57

2.5 x 1.5

100

0.60

4 x 2½

100 x 65

108 x 76

2.5 x 2

100

0.66

4 x 3

100 x 80

108 x 89

2.5 x 2

100

0.72

5 x 2

125 x 50

133 x 57

2.5 x 1.5

140

0.86

5 x 2½

125 x 65

133 x 76

2.5 x 2

140

0.90

5 x 3

125 x 80

133 x 89

2.5 x 2

140

0.94

5 x 4

125 x 100

133 x 108

2.5 x 2.5

140

0.98

6 x 2½

150 x 65

159 x 76

2.5 x 2

150

1.16

6 x 3

150 x 80

159 x 89

2.5 x 2

150

1.25

6 x 4

150 x 100

159 x 108

2.5 x 2.5

150

1.37

6 x 5

150 x 125

159 x 133

2.5 x 2.5

150

1.70

7 x 3

175 x 80

194 x 89

3 x 2

155

1.94

7 x 4

175 x 100

194 x 108

3 x 2.5

155

1.96

7 x 5

175 x 125

194 x 133

3 x 2.5

155

2.01

7 x 6

175 x 150

194 x 159

3 x 2.5

155

2.08

8 x 4

200 x 100

219 x 108

3 x 2.5

155

2.55

8 x 5

200 x 125

219 x 133

3 x 2.5

155

2.64

8 x 6

200 x 150

219 x 159

3 x 2.5

155

2.73

8 x 7

200 x 175

219 x 194

3 x 3

155

2.82

10 x 5

250 x 125

267 x 133

3 x 2.5

210

4.42

10 x 6

250 x 150

267 x 159

3 x 2.5

210

4.53

10 x 7

250 x 175

267 x 194

3 x 3

210

4.63

10 x 8

250 x 200

267 x 219

3 x 3

210

4.78

12 x 5

300 x 125

324 x 133

4 x 2.5

210

7.12

12 x 6

300 x 150

324 x 159

4 x 2.5

210

7.20

12 x 7

300 x 175

324 x 194

4 x 3

210

7.28

12 x 8

300 x 200

324 x 219

4 x 3

210

7.40

12 x 10

300 x 250

324 x 267

4 x 3

210

7.55

14 x 6

350 x 150

368 x 159

4 x 2.5

300

10.75

14 x 7

350 x 175

368 x 194

4 x 3

300

11.05

14 x 8

350 x 200

368 x 219

4 x 3

300

11.40

14 x 10

350 x 250

368 x 267

4 x 3

300

11.80

14 x 12

350 x 300

368 x 324

4 x 4

300

12.20

16 x 7

400 x 175

419 x 194

4 x 3

325

12.90

16 x 8

400 x 200

419 x 219

4 x 3

325

13.40

16 x 10

400 x 250

419 x 267

4 x 3

325

13.90

16 x 12

400 x 300

419 x 324

4 x 4

325

14.40

16 x 14

400 x 350

419 x 368

4 x 4

325

15.10

18 x 8

450 x 200

457 x 219

4.5 x 3

350

17.09

18 x 10

450 x 250

457 x 267

4.5 x 3

350

17.60

18 x 12

450 x 300

457 x 324

4.5 x 4

350

18.19

18 x 14

450 x 350

457 x 368

4.5 x 4

350

18.95

18 x 16

450 x 400

457 x 419

4.5 x 4

350

19.90

20 x 10

500 x 250

508 x 267

5 x 3

375

22.00

20 x 12

500 x 300

508 x 324

5 x 4

375

23.10

20 x 14

500 x 350

508 x 368

5 x 4

375

24.30

20 x 16

500 x 400

508 x 419

5 x 4

375

25.20

20 x 18

500 x 450

508 x 457

5 x 4.5

375

26.10

24 x 14

600 x 350

610 x 368

5 x 4

400

29.90

24 x 16

600 x 400

610 x 419

5 x 4

400

30.70

24 x 18

600 x 450

610 x 457

5 x 4.5

400

31.80

24 x 20

600 x 500

610 x 508

5 x 5

400

33.50